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2
.gitignore vendored
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@ -4,5 +4,3 @@ vendor/
build/ build/
dist/ dist/
fail2ban_exporter

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@ -1,64 +1,54 @@
image: golang:latest
before_script:
- make go/dependencies
stages: stages:
- test - test
- build - build
- release
.go_template: dependencies:
image: golang:latest
sast:
stage: test stage: test
script:
include: - make go/checkDependencies
- template: Security/SAST.gitlab-ci.yml
- template: Security/Dependency-Scanning.gitlab-ci.yml
format: format:
extends: .go_template
stage: test stage: test
script: script:
- make check/fmt - make go/checkFmt
vet:
extends: .go_template
stage: test
allow_failure: true
script:
- make vet
test: test:
extends: .go_template
stage: test stage: test
script: script:
- make test - make go/test
build: build:
extends: .go_template
stage: build stage: build
only:
- main
- tags
script: script:
- make build - git fetch --tags
- make build/snapshot
artifacts: artifacts:
paths: paths:
- fail2ban_exporter - dist/*.tar.gz
- dist/checksums.txt
expire_in: 1 day expire_in: 1 day
release: docker/gitlab:
stage: release stage: build
only:
- main
- tags
image: docker:stable image: docker:stable
services: services:
- docker:dind - docker:dind
variables: before_script:
DOCKER_REGISTRY: $CI_REGISTRY - apk add git
DOCKER_USERNAME: $CI_REGISTRY_USER - apk add make
DOCKER_PASSWORD: $CI_REGISTRY_PASSWORD - docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
GIT_DEPTH: 0 script:
rules: - make docker/build/latest
- if: $CI_COMMIT_TAG =~ /^v.*$/ - make docker/build/tag
script: | - docker push registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter
docker run --rm --privileged \
-v $PWD:/go/src/gitlab.com/hectorjsmith/fail2ban-prometheus-exporter \
-w /go/src/gitlab.com/hectorjsmith/fail2ban-prometheus-exporter \
-v /var/run/docker.sock:/var/run/docker.sock \
-e DOCKER_USERNAME -e DOCKER_PASSWORD -e DOCKER_REGISTRY \
-e GITLAB_TOKEN \
goreleaser/goreleaser release --clean

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@ -1,7 +1,11 @@
project_name: fail2ban_exporter # This is an example goreleaser.yaml file with some sane defaults.
# Make sure to check the documentation at http://goreleaser.com
before:
hooks:
- make go/dependencies
builds: builds:
- env: [CGO_ENABLED=0] -
binary: fail2ban_exporter dir: src
goos: goos:
- linux - linux
- darwin - darwin
@ -14,84 +18,13 @@ builds:
- "6" - "6"
- "7" - "7"
dockers: archives:
- image_templates: -
- "registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Major }}-amd64" files:
- "registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Major }}.{{ .Minor }}-amd64" - LICENSE
- 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Version }}-amd64' - README.md
- "registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest-amd64" - CHANGELOG.md
extra_files: checksum:
- health name_template: 'checksums.txt'
use: buildx
dockerfile: Dockerfile.goreleaser
build_flag_templates:
- "--pull"
- "--platform=linux/amd64"
- --label=org.opencontainers.image.title={{ .ProjectName }}
- --label=org.opencontainers.image.description={{ .ProjectName }}
- --label=org.opencontainers.image.url=https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter
- --label=org.opencontainers.image.source=https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter
- --label=org.opencontainers.image.version={{ .Version }}
- --label=org.opencontainers.image.created={{ time "2006-01-02T15:04:05Z07:00" }}
- --label=org.opencontainers.image.revision={{ .FullCommit }}
- --label=org.opencontainers.image.licenses=MIT
- image_templates:
- "registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Major }}-arm64"
- "registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Major }}.{{ .Minor }}-arm64"
- 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Version }}-arm64'
- "registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest-arm64"
extra_files:
- health
use: buildx
dockerfile: Dockerfile.goreleaser
build_flag_templates:
- "--pull"
- "--platform=linux/arm64"
- --label=org.opencontainers.image.title={{ .ProjectName }}
- --label=org.opencontainers.image.description={{ .ProjectName }}
- --label=org.opencontainers.image.url=https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter
- --label=org.opencontainers.image.source=https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter
- --label=org.opencontainers.image.version={{ .Version }}
- --label=org.opencontainers.image.created={{ time "2006-01-02T15:04:05Z07:00" }}
- --label=org.opencontainers.image.revision={{ .FullCommit }}
- --label=org.opencontainers.image.licenses=MIT
goarch: arm64
docker_manifests:
- name_template: 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Major }}'
image_templates:
- 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Major }}-amd64'
- 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Major }}-arm64'
- name_template: 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Major }}.{{ .Minor }}'
image_templates:
- 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Major }}.{{ .Minor }}-amd64'
- 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Major }}.{{ .Minor }}-arm64'
- name_template: 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Version }}'
image_templates:
- 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Version }}-amd64'
- 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:{{ .Version }}-arm64'
- name_template: 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest'
image_templates:
- 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest-amd64'
- 'registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest-arm64'
changelog: changelog:
groups: skip: true
- title: "⛔ Breaking Changes"
regexp: '^.*?!:.+$'
order: 0
- title: "🎉 Features"
regexp: '^.*?feat(\(\w+\))??:.+$'
order: 1
- title: "🐛 Fixes"
regexp: '^.*?fix(\(\w+\))??:.+$'
order: 2
- title: "📑 Other"
order: 999
filters:
exclude:
- "^Merge"
- "^merge"

72
CHANGELOG.md Normal file
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@ -0,0 +1,72 @@
# CHANGELOG
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog], and this project adheres to [Semantic Versioning].
## [Unreleased]
*Nothing yet*
## [0.4.0] - 2021-10-18
*Add new fail2ban config metrics*
### Added
- (56730c8) feat: add new jail config metrics
- (5a107cc) feat: support for textfile metrics ([#13](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/issues/13))
### Removed
- (b268f86) remove: database-based metrics
- (0b6a941) remove: windows builds
## [0.3.0] - 2021-09-27
*Export new version metrics ([#12](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/issues/12))*
### Added
- (3c9a005) feat: render basic html page at root url
- (22a165d) feat: improve startup logging
- (fba9ee2) feat: export new version metric ([#12](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/issues/12))
## [0.2.0] - 2021-08-31
*Collect metrics through fail2ban socket - based on [#11](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/issues/11)*
### Added
- (39133d0) feat: collect new up metric from fail2ban socket
- (4da46f3) feat: export metrics with socket errors
- (bd841c3) feat: set up metric to 0 if errors found
- (1964dde) feat: export metrics for failed/banned counts
- (2ab1f7d) feat: support reading fail2ban socket in docker
- (1282d63) feat: new metric for enabled jails ([#1](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/issues/1))
### Fixed
- (526b1c7) fix: update banned metrics to exclude expired bans ([#11](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/issues/11))
### Deprecated
- Use of the fail2ban database has been deprecated. The exporter now collects metrics through the fail2ban socket file. See [#11](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/-/issues/11) for more details.
## [0.1.0] - 2021-03-28
*Initial release*
### Added
- (6355c9e) feat: fail on startup if database file does not exist ([#8](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/issues/8))
- (4f18bf3) feat: add cli parameters for db path and metrics port ([#4](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/issues/4))
- (91cba80) feat: export number of banned ips
- (4b96501) feat: export bad ip count per jail
- (0b40e5d) feat: connect to fail2ban db and extract total bad ips
- (7ced846) feat: initial setup of metric exporter
### Fixed
- (0842419) fix: compile tool without cgo_enabled flag
## 0.0.0 - 2021-02-05
*Repository creation*
---
[Keep a Changelog]: https://keepachangelog.com/en/1.0.0/
[Semantic Versioning]: https://semver.org/spec/v2.0.0.html
[Unreleased]: https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/compare/0.1.0...main
[0.1.0]: https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/compare/0.0.0...0.1.0
[0.2.0]: https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/compare/0.1.0...0.2.0
[0.3.0]: https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/compare/0.2.0...0.3.0
[0.4.0]: https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/compare/0.3.0...0.4.0

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@ -1,30 +1,26 @@
FROM golang:1.20-buster AS build # Using golang:latest instead of alpine because of issues with sqlite3
FROM golang:latest AS build
# Create build workspace folder # Create build folder to compile tool
WORKDIR /workspace WORKDIR /build
ADD . /workspace
# Install updates and build tools # Copy source files to build folder and link to the /go folder
RUN apt update --yes && \ COPY . /build
apt install --yes build-essential RUN ln -s /go/src/ /build/src
# Build the actual binary # Compile the tool using a Make command
RUN make build RUN make build/docker
# -- -- -- -- -- --
# Set up image to run the tool FROM debian:buster-slim
FROM alpine
# Create main app folder to run from # Create main app folder to run from
WORKDIR /app WORKDIR /app
# Copy built binary from build image # Copy compiled binary to release image
COPY --from=build /workspace/fail2ban_exporter /app COPY --from=build /build/src/exporter /app/fail2ban-prometheus-exporter
# Setup a healthcheck # Copy init script into main app folder and set as entry point
COPY health /app/health COPY docker/run.sh /app/
RUN apk add curl RUN chmod +x /app/*
HEALTHCHECK --interval=10s --timeout=4s --retries=3 CMD /app/health ENTRYPOINT /app/run.sh
ENTRYPOINT ["/app/fail2ban_exporter"]

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@ -1,15 +0,0 @@
FROM alpine
# Create main app folder to run from
WORKDIR /app
# Copy compiled binary to release image
# (must build the binary before running docker build)
COPY fail2ban_exporter /app/fail2ban_exporter
# Setup a healthcheck
COPY health /app/health
RUN apk add curl
HEALTHCHECK --interval=10s --timeout=4s --retries=3 CMD /app/health
ENTRYPOINT ["/app/fail2ban_exporter"]

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@ -1,55 +1,36 @@
# List make commands go/dependencies:
.PHONY: ls cd src/ && go mod download
ls:
cat Makefile | grep "^[a-zA-Z#].*" | cut -d ":" -f 1 | sed s';#;\n#;'g
# Download dependencies # Make sure no unnecessary dependencies are present
.PHONY: download go/checkDependencies:
download: cd src/ && go mod tidy -v
go mod download git diff-index --quiet HEAD
# Update project dependencies # Standard go test
.PHONY: update go/test:
update: cd src/ && go test ./... -v -race
go get -u
go mod download
go mod tidy
# Run project tests go/fmt:
.PHONY: test cd src/ && go fmt ./...
test: download
go test ./... -v -race
# Look for "suspicious constructs" in source code go/checkFmt:
.PHONY: vet
vet: download
go vet ./...
# Format code
.PHONY: fmt
fmt: download
go mod tidy
go fmt ./...
# Check for unformatted go code
.PHONY: check/fmt
check/fmt: download
test -z $(shell gofmt -l .) test -z $(shell gofmt -l .)
# Build project docs/genChangelog:
.PHONY: build ./tools/git-chglog_linux_amd64 --config tools/chglog/config.yml 0.0.0.. > CHANGELOG_gen.md
build:
CGO_ENABLED=0 go build \ build/snapshot:
-ldflags "\ ./tools/goreleaser_linux_amd64 --snapshot --rm-dist --skip-publish
-X main.version=${shell git describe --tags} \
-X main.commit=${shell git rev-parse HEAD} \ build/release:
-X main.date=${shell date --iso-8601=seconds} \ ./tools/goreleaser_linux_amd64 --rm-dist --skip-publish
-X main.builtBy=manual \
" \
-o fail2ban_exporter \
exporter.go
# Build project docker container
.PHONY: build/docker
build/docker: build/docker:
docker build -t fail2ban-prometheus-exporter . cd src/ && go build -o exporter \
-ldflags '-X main.version=$(shell git describe --tags) -X main.commit=${shell git rev-parse HEAD} -X "main.date=${shell date --rfc-3339=seconds}" -X main.builtBy=docker' exporter.go
docker/build/latest:
docker build -t registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest .
docker/build/tag:
docker build -t registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:$(shell git describe --tags) .

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@ -1,44 +1,92 @@
# Fail2Ban Prometheus Exporter # Fail2Ban Prometheus Exporter
[![Pipeline](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/badges/main/pipeline.svg)](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter) Go tool to collect and export metrics on Fail2Ban
[![Go Report Card](https://goreportcard.com/badge/gitlab.com/hectorjsmith/fail2ban-prometheus-exporter)](https://goreportcard.com/report/gitlab.com/hectorjsmith/fail2ban-prometheus-exporter)
Collect metrics from a running fail2ban instance.
## Table of Contents ## Table of Contents
1. Quick Start 1. Introduction
2. Metrics 2. Running the Exporter
3. Configuration 3. Running in Docker
4. Building from source 4. Metrics
5. Textfile metrics
6. Troubleshooting
## 1. Quick Start ## 1. Introduction
The exporter can collect metrics from 2 locations: the fail2ban server socket and the fail2ban server database.
The exporter can be run as a standalone binary or a docker container. Once the exporter is running, metrics are available at `localhost:9191/metrics`.
### 1.1. Standalone (The default port is `9191` but can be modified with the `-port` flag)
The following command will start collecting metrics from the `/var/run/fail2ban/fail2ban.sock` file and expose them on port `9191`. The exporter communicates with the fail2ban server over its socket.
This allows the data collected by the exporter to always align with the output of the `fail2ban-client`.
The default location of the socket is: `/var/run/fail2ban/fail2ban.sock`
## 2. Running the Exporter
The exporter is compiled and released as a single binary.
This makes it very easy to run in any environment.
No additional runtime dependencies are required.
Compiled binaries for various platforms are provided in each release.
See the [releases page](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/-/releases) for more information.
**Usage**
``` ```
$ fail2ban_exporter --collector.f2b.socket=/var/run/fail2ban/fail2ban.sock --web.listen-address=":9191" $ fail2ban-prometheus-exporter -h
2022/02/20 09:54:06 fail2ban exporter version 0.8.1 -port int
2022/02/20 09:54:06 starting server at :9191 port to use for the metrics server (default 9191)
2022/02/20 09:54:06 reading metrics from fail2ban socket: /var/run/fail2ban/fail2ban.sock -socket string
2022/02/20 09:54:06 metrics available at '/metrics' path to the fail2ban server socket
2022/02/20 09:54:06 ready -version
show version info and exit
-collector.textfile
enable the textfile collector
-collector.textfile.directory string
directory to read text files with metrics from
``` ```
Binary files for each release can be found on the [releases](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/-/releases) page. **Example**
There is also an [example systemd service file](/_examples/systemd/fail2ban_exporter.service) included in the repository. ```
This is a starting point to run the exporter as a service. fail2ban-prometheus-exporter -socket /var/run/fail2ban/fail2ban.sock -port 9191
```
### 1.2. Docker Note that the exporter will need read access to the fail2ban socket.
### 2.1. Compile from Source
The code can be compiled from source by running `go build` inside the `src/` folder.
Go version `1.15` or greater is required.
Run `go mod download` to download all necessary dependencies before running the build.
## 3. Running in Docker
An official docker image is available on the Gitlab container registry.
Use it by pulling the following image:
```
registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest
```
Use the `:latest` tag to get the most up to date code (less stable) or use one of the version tagged images to use a specific release.
See the [registry page](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/container_registry) for all available tags.
### 3.1. Volumes
The docker image is designed to run by mounting the fail2ban run folder.
The run folder should be mounted in the container at: `/var/run/fail2ban`.
The folder can be mounted with read-only (`ro`) permissions.
**NOTE:** While it is possible to mount the `fail2ban.sock` file directly, it is recommended to mount the parent folder instead.
The `.sock` file is deleted by fail2ban on shutdown and re-created on startup and this causes problems for the docker mount.
See [this reply](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/-/issues/11#note_665003499) for more details.
### 3.2. Docker run
Use the following command to run the exporter as a docker container.
**Docker run**
``` ```
docker run -d \ docker run -d \
--name "fail2ban-exporter" \ --name "fail2ban-exporter" \
@ -47,7 +95,9 @@ docker run -d \
registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest
``` ```
**Docker compose** ### 3.3. Docker compose
The following is a simple docker-compose file to run the exporter.
``` ```
version: "2" version: "2"
@ -60,39 +110,92 @@ services:
- "9191:9191" - "9191:9191"
``` ```
Use the `:latest` tag to get the latest stable release. ## 4. Metrics
See the [registry page](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/container_registry) for all available tags.
**NOTE:** While it is possible to mount the `fail2ban.sock` file directly, it is recommended to mount the parent folder instead. Access exported metrics at the `/metrics` path on the configured port.
The `.sock` file is deleted by fail2ban on shutdown and re-created on startup and this causes problems for the docker mount.
See [this reply](https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/-/issues/11#note_665003499) for more details.
## 2. Metrics **Note on Fail2Ban Jails**
The exporter exposes the following metrics: fail2ban can be configured to process different log files and use different rules for each one.
These separate configurations are referred to as *jails*.
*All metric names are prefixed with `f2b_`* For example, fail2ban can be configured to watch the system logs for failed SSH connections and Nextcloud logs for failed logins.
In this configuration, there will be two jails - one for IPs banned from the SSH logs, and one for IPs banned from the Nextcloud logs.
| Metric | Description | Example | This tool exports several metrics *per jail*, meaning that it is possible to track how many IPs are being banned in each jail as well as the overall total.
|------------------------------|------------------------------------------------------------------------------------|-----------------------------------------------------| This can be useful to track what services are seeing more failed logins.
| `up` | Returns 1 if the exporter is up and running | `f2b_up 1` |
| `errors` | Count the number of errors since startup by type | | ### 4.1. Socket-based Metrics
| `errors{type="socket_conn"}` | Errors connecting to the fail2ban socket (e.g. connection refused) | `f2b_errors{type="socket_conn"} 0` |
| `errors{type="socket_req"}` | Errors sending requests to the fail2ban server (e.g. invalid responses) | `f2b_errors{type="socket_req"} 0` | These are the metrics exported by reading data from the fail2ban server socket.
| `jail_count` | Number of jails configured in fail2ban | `f2b_jail_count 2` | All metrics are prefixed with `f2b_`.
| `jail_banned_current` | Number of IPs currently banned per jail | `f2b_jail_banned_current{jail="sshd"} 15` |
| `jail_banned_total` | Total number of banned IPs since fail2ban startup per jail (includes expired bans) | `f2b_jail_banned_total{jail="sshd"} 31` | Exposed metrics:
| `jail_failed_current` | Number of current failures per jail | `f2b_jail_failed_current{jail="sshd"} 6` | * `up` - Returns 1 if the fail2ban server is up and connection succeeds
| `jail_failed_total` | Total number of failures since fail2ban startup per jail | `f2b_jail_failed_total{jail="sshd"} 125` | * `errors` - Number of errors since startup
| `jail_config_ban_time` | How long an IP is banned for in this jail (in seconds) | `f2b_config_jail_ban_time{jail="sshd"} 600` | * `db` - Errors connecting to the database
| `jail_config_find_time` | How far back the filter will look for failures in this jail (in seconds) | `f2b_config_jail_find_time{jail="sshd"} 600` | * `socket_conn` - Errors connecting to the fail2ban socket (e.g. connection refused)
| `jail_config_max_retry` | The max number of failures allowed before banning an IP in this jail | `f2b_config_jail_max_retries{jail="sshd"} 5` | * `socket_req` - Errors sending requests to the fail2ban server (e.g. invalid responses)
| `version` | Version string of the exporter and fail2ban | `f2b_version{exporter="0.5.0",fail2ban="0.11.1"} 1` | * `jail_count` - Number of jails configured in fail2ban
* `jail_banned_current` (per jail) - Number of IPs currently banned
* `jail_banned_total` (per jail) - Total number of banned IPs since fail2ban startup (includes expired bans)
* `jail_failed_current` (per jail) - Number of current failures
* `jail_failed_total` (per jail) - Total number of failures since fail2ban startup
* `jail_config_ban_time` (per jail) - How long an IP is banned for in this jail (in seconds)
* `jail_config_find_time` (per jail) - How far back the filter will look for failures in this jail (in seconds)
* `jail_config_max_retry` (per jail) - The max number of failures allowed before banning an IP in this jail
* `version` - Version string of the exporter and fail2ban
**Sample**
```
# HELP f2b_errors Number of errors found since startup
# TYPE f2b_errors counter
f2b_errors{type="db"} 0
f2b_errors{type="socket_conn"} 0
f2b_errors{type="socket_req"} 0
# HELP f2b_jail_banned_current Number of IPs currently banned in this jail
# TYPE f2b_jail_banned_current gauge
f2b_jail_banned_current{jail="recidive"} 5
f2b_jail_banned_current{jail="sshd"} 15
# HELP f2b_jail_banned_total Total number of IPs banned by this jail (includes expired bans)
# TYPE f2b_jail_banned_total gauge
f2b_jail_banned_total{jail="recidive"} 6
f2b_jail_banned_total{jail="sshd"} 31
# HELP f2b_jail_count Number of defined jails
# TYPE f2b_jail_count gauge
f2b_jail_count 2
# HELP f2b_jail_failed_current Number of current failures on this jail's filter
# TYPE f2b_jail_failed_current gauge
f2b_jail_failed_current{jail="recidive"} 5
f2b_jail_failed_current{jail="sshd"} 6
# HELP f2b_jail_failed_total Number of total failures on this jail's filter
# TYPE f2b_jail_failed_total gauge
f2b_jail_failed_total{jail="recidive"} 7
f2b_jail_failed_total{jail="sshd"} 125
# HELP f2b_config_jail_ban_time How long an IP is banned for in this jail (in seconds)
# TYPE f2b_config_jail_ban_time gauge
f2b_config_jail_ban_time{jail="recidive"} 604800
f2b_config_jail_ban_time{jail="sshd"} 600
# HELP f2b_config_jail_find_time How far back will the filter look for failures in this jail (in seconds)
# TYPE f2b_config_jail_find_time gauge
f2b_config_jail_find_time{jail="recidive"} 86400
f2b_config_jail_find_time{jail="sshd"} 600
# HELP f2b_config_jail_max_retries The number of failures allowed until the IP is banned by this jail
# TYPE f2b_config_jail_max_retries gauge
f2b_config_jail_max_retries{jail="recidive"} 5
f2b_config_jail_max_retries{jail="sshd"} 5
# HELP f2b_up Check if the fail2ban server is up
# TYPE f2b_up gauge
f2b_up 1
# HELP f2b_version Version of the exporter and fail2ban server
# TYPE f2b_version gauge
f2b_version{exporter="0.3.0",fail2ban="0.11.1"} 1
```
The metrics above correspond to the matching fields in the `fail2ban-client status <jail>` command: The metrics above correspond to the matching fields in the `fail2ban-client status <jail>` command:
``` ```
Status for the jail: sshd Status for the jail: sshd|- Filter
|- Filter
| |- Currently failed: 6 | |- Currently failed: 6
| |- Total failed: 125 | |- Total failed: 125
| `- File list: /var/log/auth.log | `- File list: /var/log/auth.log
@ -102,79 +205,13 @@ Status for the jail: sshd
`- Banned IP list: ... `- Banned IP list: ...
``` ```
### 2.1. Grafana ### 4.2. Textfile Metrics
The metrics exported by this tool are compatible with Prometheus and Grafana.
A sample grafana dashboard can be found in the [grafana.json](/_examples/grafana/dashboard.json) file.
Just import the contents of this file into a new Grafana dashboard to get started.
The dashboard supports displaying data from multiple exporters. Use the `instance` dashboard variable to select which ones to display.
*(Sample dashboard is compatible with Grafana `9.1.8` and above)*
## 3. Configuration
The exporter is configured with CLI flags and environment variables.
There are no configuration files.
**CLI flags**
```
🚀 Collect prometheus metrics from a running Fail2Ban instance
Flags:
-h, --help Show context-sensitive help.
-v, --version Show version info and exit
--dry-run Attempt to connect to the fail2ban socket then exit
before starting the server
--web.listen-address=":9191" Address to use for the metrics server
($F2B_WEB_LISTEN_ADDRESS)
--collector.f2b.socket="/var/run/fail2ban/fail2ban.sock"
Path to the fail2ban server socket
($F2B_COLLECTOR_SOCKET)
--collector.f2b.exit-on-socket-connection-error
When set to true the exporter will immediately
exit on a fail2ban socket connection error
($F2B_EXIT_ON_SOCKET_CONN_ERROR)
--collector.textfile.directory=STRING
Directory to read text files with metrics from
($F2B_COLLECTOR_TEXT_PATH)
--web.basic-auth.username=STRING
Username to use to protect endpoints with basic auth
($F2B_WEB_BASICAUTH_USER)
--web.basic-auth.password=STRING
Password to use to protect endpoints with basic auth
($F2B_WEB_BASICAUTH_PASS)
```
**Environment variables**
Each environment variable corresponds to a CLI flag.
If both are specified, the CLI flag takes precedence.
| Environment variable | Corresponding CLI flag |
|---------------------------------|---------------------------------------------------|
| `F2B_COLLECTOR_SOCKET` | `--collector.f2b.socket` |
| `F2B_COLLECTOR_TEXT_PATH` | `--collector.textfile.directory` |
| `F2B_WEB_LISTEN_ADDRESS` | `--web.listen-address` |
| `F2B_WEB_BASICAUTH_USER` | `--web.basic-auth.username` |
| `F2B_WEB_BASICAUTH_PASS` | `--web.basic-auth.password` |
| `F2B_EXIT_ON_SOCKET_CONN_ERROR` | `--collector.f2b.exit-on-socket-connection-error` |
## 4. Building from source
Building from source has the following dependencies:
- Go v1.20
- Make
From there, simply run `make build`
This will download the necessary dependencies and build a `fail2ban_exporter` binary in the root of the project.
## 5. Textfile metrics
For more flexibility the exporter also allows exporting metrics collected from a text file. For more flexibility the exporter also allows exporting metrics collected from a text file.
To enable textfile metrics provide the directory to read files from with the `--collector.textfile.directory` flag. To enable textfile metrics:
1. Enable the collector with `-collector.textfile=true`
2. Provide the directory to read files from with the `-collector.textfile.directory` flag
Metrics collected from these files will be exposed directly alongside the other metrics without any additional processing. Metrics collected from these files will be exposed directly alongside the other metrics without any additional processing.
This means that it is the responsibility of the file creator to ensure the format is correct. This means that it is the responsibility of the file creator to ensure the format is correct.
@ -188,52 +225,3 @@ textfile_error{path="file.prom"} 0
``` ```
**NOTE:** Any file not ending with `.prom` will be ignored. **NOTE:** Any file not ending with `.prom` will be ignored.
**Running in Docker**
To collect textfile metrics inside a docker container, a couple of things need to be done:
1. Mount the folder with the metrics files
2. Set the `F2B_COLLECTOR_TEXT_PATH` environment variable
*For example:*
```
docker run -d \
--name "fail2ban-exporter" \
-v /var/run/fail2ban:/var/run/fail2ban:ro \
-v /path/to/metrics:/app/metrics/:ro \
-e F2B_COLLECTOR_TEXT_PATH=/app/metrics \
-p "9191:9191" \
registry.gitlab.com/hectorjsmith/fail2ban-prometheus-exporter:latest
```
## 6. Troubleshooting
### 6.1. "no such file or directory"
```
error opening socket: dial unix /var/run/fail2ban/fail2ban.sock: connect: no such file or directory
```
There are a couple of potential causes for the error above.
**File not found**
The first is that the file does not exist, so first check that the file path shown in the error actually exists on the system running the exporter.
The fail2ban server may be storing the socket file in another location on your machine.
If you are using docker, make sure the correct host folder was mounted to the correct location.
If the file is not in the expected location, you can run the exporter with the corresponding CLI flag or environment variable to use a different file path.
**Permissions**
If the file does exist, the likely cause are file permissions.
By default, the fail2ban server runs as the `root` user and the socket file can only be accessed by the same user.
If you are running the exporter as a non-root user, it will not be able to open the socket file to read/write commands to the server, leading to the error above.
In this case there are a few solutions:
1. Run the exporter as the same user as fail2ban (usually `root`)
2. Update the fail2ban server config to run as a non-root user, then run the exporter as the same user
3. Update the socket file permissions to be less restrictive
I would recommend option `1.` since it is the simplest. Option `2.` is a bit more complex, check the [fail2ban server documentation](https://coderwall.com/p/haj28a/running-rootless-fail2ban-on-debian) for more details. And option `3.` is just a temporary fix. The socket file gets re-created each time the fail2ban server is restarted and the original permissions will be restored, so you will need to update the permissions every time the server restarts.

View file

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"refresh": "30s",
"schemaVersion": 37,
"style": "dark",
"tags": [],
"templating": {
"list": [
{
"current": {
"selected": false,
"text": "Prometheus",
"value": "Prometheus"
},
"hide": 0,
"includeAll": false,
"label": "Data Source",
"multi": false,
"name": "DataSource",
"options": [],
"query": "prometheus",
"queryValue": "",
"refresh": 1,
"regex": "",
"skipUrlSync": false,
"type": "datasource"
},
{
"current": {},
"datasource": {
"type": "prometheus",
"uid": "${DS_PROMETHEUS}"
},
"definition": "f2b_up",
"description": "Select which instance(s) to show",
"hide": 0,
"includeAll": false,
"label": "Instance",
"multi": true,
"name": "instance",
"options": [],
"query": {
"query": "f2b_up",
"refId": "StandardVariableQuery"
},
"refresh": 1,
"regex": "/.*instance=\"([^\"]+)\"/",
"skipUrlSync": false,
"sort": 0,
"type": "query"
}
]
},
"time": {
"from": "now-6h",
"to": "now"
},
"timepicker": {},
"timezone": "",
"title": "F2B",
"uid": "cTkH9AT7z",
"version": 3,
"weekStart": ""
}

View file

@ -1,7 +0,0 @@
# Systemd
The `.service` file in this directory should be copied to the `/etc/systemd/system/` folder.
- It expects the binary file to be installed at `/usr/sbin/fail2ban_exporter`.
- It expects a user named `fail2ban_exporter` to exist. This user should not have a shell or any special privileges aside from read-access to the fail2ban socket file.
The `ExecStart` line can be modified to add any custom CLI flags.

View file

@ -1,19 +0,0 @@
[Unit]
Description=Fail2ban metric exporter for Prometheus
Documentation=https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/-/blob/main/README.md
Requires=network-online.target
After=network-online.target
[Service]
ExecStart=/usr/sbin/fail2ban_exporter
Restart=on-failure
RestartSec=5s
NoNewPrivileges=true
# Currently need to run the exporter as root to ensure it has read/write access to the
# fail2ban socket file.
User=root
Group=root
[Install]
WantedBy=multi-user.target

View file

@ -1,29 +0,0 @@
package auth
import (
"fmt"
"net/http"
)
func NewBasicAuthProvider(username, password string) AuthProvider {
return &basicAuthProvider{
hashedAuth: encodeBasicAuth(username, password),
}
}
type basicAuthProvider struct {
hashedAuth string
}
func (p *basicAuthProvider) IsAllowed(request *http.Request) bool {
username, password, ok := request.BasicAuth()
if !ok {
return false
}
requestAuth := encodeBasicAuth(username, password)
return p.hashedAuth == requestAuth
}
func encodeBasicAuth(username, password string) string {
return HashString(fmt.Sprintf("%s:%s", username, password))
}

View file

@ -1,53 +0,0 @@
package auth
import (
"net/http"
"net/http/httptest"
"testing"
)
func Test_GIVEN_BasicAuthSet_WHEN_CallingIsAllowedWithCorrectCreds_THEN_TrueReturned(t *testing.T) {
// assemble
username := "u1"
password := HashString("abc")
request := httptest.NewRequest(http.MethodGet, "http://example.com", nil)
request.SetBasicAuth(username, password)
provider := NewBasicAuthProvider(username, password)
// act
result := provider.IsAllowed(request)
// assert
if !result {
t.Errorf("expected request to be allowed, but failed")
}
}
func Test_GIVEN_BasicAuthSet_WHEN_CallingIsAllowedWithoutCreds_THEN_FalseReturned(t *testing.T) {
// assemble
request := httptest.NewRequest(http.MethodGet, "http://example.com", nil)
provider := NewBasicAuthProvider("u1", "p1")
// act
result := provider.IsAllowed(request)
// assert
if result {
t.Errorf("expected request to be denied, but was allowed")
}
}
func Test_GIVEN_BasicAuthSet_WHEN_CallingIsAllowedWithWrongCreds_THEN_FalseReturned(t *testing.T) {
// assemble
request := httptest.NewRequest(http.MethodGet, "http://example.com", nil)
request.SetBasicAuth("wrong", "pw")
provider := NewBasicAuthProvider("u1", "p1")
// act
result := provider.IsAllowed(request)
// assert
if result {
t.Errorf("expected request to be denied, but was allowed")
}
}

View file

@ -1,14 +0,0 @@
package auth
import "net/http"
func NewEmptyAuthProvider() AuthProvider {
return &emptyAuthProvider{}
}
type emptyAuthProvider struct {
}
func (p *emptyAuthProvider) IsAllowed(request *http.Request) bool {
return true
}

View file

@ -1,36 +0,0 @@
package auth
import (
"net/http"
"net/http/httptest"
"testing"
)
func Test_GIVEN_EmptyAuth_WHEN_CallingIsAllowedWithoutAuth_THEN_TrueReturned(t *testing.T) {
// assemble
request := httptest.NewRequest(http.MethodGet, "http://example.com", nil)
provider := NewEmptyAuthProvider()
// act
response := provider.IsAllowed(request)
// assert
if !response {
t.Errorf("expected request to be allowed, but failed")
}
}
func Test_GIVEN_EmptyAuth_WHEN_CallingIsAllowedWithAuth_THEN_TrueReturned(t *testing.T) {
// assemble
request := httptest.NewRequest(http.MethodGet, "http://example.com", nil)
request.SetBasicAuth("user", "pass")
provider := NewEmptyAuthProvider()
// act
response := provider.IsAllowed(request)
// assert
if !response {
t.Errorf("expected request to be allowed, but failed")
}
}

View file

@ -1,18 +0,0 @@
package auth
import (
"crypto/sha256"
"encoding/hex"
)
func hash(data []byte) []byte {
if len(data) == 0 {
return []byte{}
}
b := sha256.Sum256(data)
return b[:]
}
func HashString(data string) string {
return hex.EncodeToString(hash([]byte(data)))
}

View file

@ -1,26 +0,0 @@
package auth
import (
"reflect"
"testing"
)
func TestHashString(t *testing.T) {
tests := []struct {
name string
args string
want string
}{
{"Happy path #1", "123", "a665a45920422f9d417e4867efdc4fb8a04a1f3fff1fa07e998e86f7f7a27ae3"},
{"Happy path #2", "hello world", "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9"},
{"Happy path #3", "H3Ll0_W0RLD", "d58a27fe9a6e73a1d8a67189fb8acace047e7a1a795276a0056d3717ad61bd0e"},
{"Blank string", "", ""},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if got := HashString(tt.args); !reflect.DeepEqual(got, tt.want) {
t.Errorf("HashString() = %v, want %v", got, tt.want)
}
})
}
}

View file

@ -1,9 +0,0 @@
package auth
import (
"net/http"
)
type AuthProvider interface {
IsAllowed(*http.Request) bool
}

View file

@ -1,84 +0,0 @@
package cfg
import (
"fmt"
"log"
"os"
"github.com/alecthomas/kong"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/auth"
)
var cliStruct struct {
VersionMode bool `name:"version" short:"v" help:"Show version info and exit"`
DryRunMode bool `name:"dry-run" help:"Attempt to connect to the fail2ban socket then exit before starting the server"`
ServerAddress string `name:"web.listen-address" env:"F2B_WEB_LISTEN_ADDRESS" help:"Address to use for the metrics server" default:"${default_address}"`
F2bSocketPath string `name:"collector.f2b.socket" env:"F2B_COLLECTOR_SOCKET" help:"Path to the fail2ban server socket" default:"${default_socket}"`
ExitOnSocketError bool `name:"collector.f2b.exit-on-socket-connection-error" env:"F2B_EXIT_ON_SOCKET_CONN_ERROR" help:"When set to true the exporter will immediately exit on a fail2ban socket connection error"`
TextFileExporterPath string `name:"collector.textfile.directory" env:"F2B_COLLECTOR_TEXT_PATH" help:"Directory to read text files with metrics from"`
BasicAuthUser string `name:"web.basic-auth.username" env:"F2B_WEB_BASICAUTH_USER" help:"Username to use to protect endpoints with basic auth"`
BasicAuthPass string `name:"web.basic-auth.password" env:"F2B_WEB_BASICAUTH_PASS" help:"Password to use to protect endpoints with basic auth"`
}
func Parse() *AppSettings {
ctx := kong.Parse(
&cliStruct,
kong.Vars{
"default_socket": "/var/run/fail2ban/fail2ban.sock",
"default_address": ":9191",
},
kong.Name("fail2ban_exporter"),
kong.Description("🚀 Export prometheus metrics from a running Fail2Ban instance"),
kong.UsageOnError(),
)
validateFlags(ctx)
settings := &AppSettings{
VersionMode: cliStruct.VersionMode,
DryRunMode: cliStruct.DryRunMode,
MetricsAddress: cliStruct.ServerAddress,
Fail2BanSocketPath: cliStruct.F2bSocketPath,
FileCollectorPath: cliStruct.TextFileExporterPath,
ExitOnSocketConnError: cliStruct.ExitOnSocketError,
AuthProvider: createAuthProvider(),
}
return settings
}
func createAuthProvider() auth.AuthProvider {
username := cliStruct.BasicAuthUser
password := cliStruct.BasicAuthPass
if len(username) == 0 && len(password) == 0 {
return auth.NewEmptyAuthProvider()
}
log.Print("basic auth enabled")
return auth.NewBasicAuthProvider(username, password)
}
func validateFlags(cliCtx *kong.Context) {
var flagsValid = true
var messages = []string{}
if !cliStruct.VersionMode {
if cliStruct.F2bSocketPath == "" {
messages = append(messages, "error: fail2ban socket path must not be blank")
flagsValid = false
}
if cliStruct.ServerAddress == "" {
messages = append(messages, "error: invalid server address, must not be blank")
flagsValid = false
}
if (len(cliStruct.BasicAuthUser) > 0) != (len(cliStruct.BasicAuthPass) > 0) {
messages = append(messages, "error: to enable basic auth both the username and the password must be provided")
flagsValid = false
}
}
if !flagsValid {
cliCtx.PrintUsage(false)
fmt.Println()
for i := 0; i < len(messages); i++ {
fmt.Println(messages[i])
}
os.Exit(1)
}
}

View file

@ -1,13 +0,0 @@
package cfg
import "gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/auth"
type AppSettings struct {
VersionMode bool
DryRunMode bool
MetricsAddress string
Fail2BanSocketPath string
FileCollectorPath string
AuthProvider auth.AuthProvider
ExitOnSocketConnError bool
}

20
docker/run.sh Normal file
View file

@ -0,0 +1,20 @@
#/bin/sh
# Print version to logs for debugging purposes
/app/fail2ban-prometheus-exporter -version
socket_path=/var/run/fail2ban/fail2ban.sock
textfile_dir=/app/textfile/
textfile_enabled=false
# Enable textfile metrics if the folder exists (i.e. was mounted by docker)
if [ -d $textfile_dir ]; then
textfile_enabled=true
fi
# Start the exporter (use exec to support graceful shutdown)
# Inspired by: https://akomljen.com/stopping-docker-containers-gracefully/
exec /app/fail2ban-prometheus-exporter \
-socket "$socket_path" \
-collector.textfile=$textfile_enabled \
-collector.textfile.directory="$textfile_dir"

View file

@ -1,66 +0,0 @@
package main
import (
"fmt"
"log"
"os"
"os/signal"
"syscall"
"github.com/prometheus/client_golang/prometheus"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/cfg"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/collector/f2b"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/collector/textfile"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/server"
)
var (
version = "dev"
commit = "none"
date = "unknown"
builtBy = "unknown"
)
func printAppVersion() {
fmt.Println(version)
fmt.Printf(" build date: %s\r\n commit hash: %s\r\n built by: %s\r\n", date, commit, builtBy)
}
func main() {
appSettings := cfg.Parse()
if appSettings.VersionMode {
printAppVersion()
return
}
handleGracefulShutdown()
log.Printf("fail2ban exporter version %s", version)
log.Printf("starting server at %s", appSettings.MetricsAddress)
f2bCollector := f2b.NewExporter(appSettings, version)
prometheus.MustRegister(f2bCollector)
textFileCollector := textfile.NewCollector(appSettings)
prometheus.MustRegister(textFileCollector)
if !appSettings.DryRunMode {
svrErr := server.StartServer(appSettings, f2bCollector, textFileCollector)
err := <-svrErr
log.Fatal(err)
} else {
log.Print("running in dry-run mode - exiting")
}
}
func handleGracefulShutdown() {
var signals = make(chan os.Signal, 1)
signal.Notify(signals, syscall.SIGTERM)
signal.Notify(signals, syscall.SIGINT)
go func() {
sig := <-signals
log.Printf("caught signal: %+v", sig)
os.Exit(0)
}()
}

21
go.mod
View file

@ -1,21 +0,0 @@
module gitlab.com/hectorjsmith/fail2ban-prometheus-exporter
go 1.20
require (
github.com/alecthomas/kong v0.8.1
github.com/kisielk/og-rek v1.2.0
github.com/nlpodyssey/gopickle v0.2.0
github.com/prometheus/client_golang v1.17.0
)
require (
github.com/beorn7/perks v1.0.1 // indirect
github.com/cespare/xxhash/v2 v2.2.0 // indirect
github.com/matttproud/golang_protobuf_extensions/v2 v2.0.0 // indirect
github.com/prometheus/client_model v0.5.0 // indirect
github.com/prometheus/common v0.45.0 // indirect
github.com/prometheus/procfs v0.12.0 // indirect
golang.org/x/sys v0.13.0 // indirect
google.golang.org/protobuf v1.31.0 // indirect
)

33
go.sum
View file

@ -1,33 +0,0 @@
github.com/alecthomas/assert/v2 v2.1.0 h1:tbredtNcQnoSd3QBhQWI7QZ3XHOVkw1Moklp2ojoH/0=
github.com/alecthomas/kong v0.8.1 h1:acZdn3m4lLRobeh3Zi2S2EpnXTd1mOL6U7xVml+vfkY=
github.com/alecthomas/kong v0.8.1/go.mod h1:n1iCIO2xS46oE8ZfYCNDqdR0b0wZNrXAIAqro/2132U=
github.com/alecthomas/repr v0.1.0 h1:ENn2e1+J3k09gyj2shc0dHr/yjaWSHRlrJ4DPMevDqE=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
github.com/google/go-cmp v0.5.9 h1:O2Tfq5qg4qc4AmwVlvv0oLiVAGB7enBSJ2x2DqQFi38=
github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
github.com/kisielk/og-rek v1.2.0 h1:CTvDIin+YnetsSQAYbe+QNAxXU3B50C5hseEz8xEoJw=
github.com/kisielk/og-rek v1.2.0/go.mod h1:6ihsOSzSAxR/65S3Bn9zNihoEqRquhDQZ2c6I2+MG3c=
github.com/matttproud/golang_protobuf_extensions/v2 v2.0.0 h1:jWpvCLoY8Z/e3VKvlsiIGKtc+UG6U5vzxaoagmhXfyg=
github.com/matttproud/golang_protobuf_extensions/v2 v2.0.0/go.mod h1:QUyp042oQthUoa9bqDv0ER0wrtXnBruoNd7aNjkbP+k=
github.com/nlpodyssey/gopickle v0.2.0 h1:4naD2DVylYJupQLbCQFdwo6yiXEmPyp+0xf5MVlrBDY=
github.com/nlpodyssey/gopickle v0.2.0/go.mod h1:YIUwjJ2O7+vnBsxUN+MHAAI3N+adqEGiw+nDpwW95bY=
github.com/prometheus/client_golang v1.17.0 h1:rl2sfwZMtSthVU752MqfjQozy7blglC+1SOtjMAMh+Q=
github.com/prometheus/client_golang v1.17.0/go.mod h1:VeL+gMmOAxkS2IqfCq0ZmHSL+LjWfWDUmp1mBz9JgUY=
github.com/prometheus/client_model v0.5.0 h1:VQw1hfvPvk3Uv6Qf29VrPF32JB6rtbgI6cYPYQjL0Qw=
github.com/prometheus/client_model v0.5.0/go.mod h1:dTiFglRmd66nLR9Pv9f0mZi7B7fk5Pm3gvsjB5tr+kI=
github.com/prometheus/common v0.45.0 h1:2BGz0eBc2hdMDLnO/8n0jeB3oPrt2D08CekT0lneoxM=
github.com/prometheus/common v0.45.0/go.mod h1:YJmSTw9BoKxJplESWWxlbyttQR4uaEcGyv9MZjVOJsY=
github.com/prometheus/procfs v0.12.0 h1:jluTpSng7V9hY0O2R9DzzJHYb2xULk9VTR1V1R/k6Bo=
github.com/prometheus/procfs v0.12.0/go.mod h1:pcuDEFsWDnvcgNzo4EEweacyhjeA9Zk3cnaOZAZEfOo=
golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=

8
health
View file

@ -1,8 +0,0 @@
#!/bin/sh
port=9191
if [ ! -z $F2B_WEB_LISTEN_ADDRESS ]; then
port=`echo $F2B_WEB_LISTEN_ADDRESS | cut -d ":" -f 2 -`
fi
curl --fail localhost:$port/health || exit 1

View file

@ -1,17 +0,0 @@
package server
import (
"net/http"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/auth"
)
func AuthMiddleware(handlerFunc http.HandlerFunc, authProvider auth.AuthProvider) http.HandlerFunc {
return func(w http.ResponseWriter, r *http.Request) {
if authProvider.IsAllowed(r) {
handlerFunc.ServeHTTP(w, r)
} else {
w.WriteHeader(http.StatusUnauthorized)
}
}
}

View file

@ -1,46 +0,0 @@
package server
import (
"net/http"
"net/http/httptest"
"testing"
)
type testAuthProvider struct {
match bool
}
func (p testAuthProvider) IsAllowed(request *http.Request) bool {
return p.match
}
func newTestRequest() *http.Request {
return httptest.NewRequest(http.MethodGet, "http://example.com", nil)
}
func executeAuthMiddlewareTest(t *testing.T, authMatches bool, expectedCode int, expectedCallCount int) {
callCount := 0
testHandler := func(w http.ResponseWriter, r *http.Request) {
callCount++
}
handler := AuthMiddleware(testHandler, testAuthProvider{match: authMatches})
recorder := httptest.NewRecorder()
request := newTestRequest()
handler.ServeHTTP(recorder, request)
if recorder.Code != expectedCode {
t.Errorf("statusCode = %v, want %v", recorder.Code, expectedCode)
}
if callCount != expectedCallCount {
t.Errorf("callCount = %v, want %v", callCount, expectedCallCount)
}
}
func Test_GIVEN_MatchingBasicAuth_WHEN_MethodCalled_THEN_RequestProcessed(t *testing.T) {
executeAuthMiddlewareTest(t, true, http.StatusOK, 1)
}
func Test_GIVEN_NonMatchingBasicAuth_WHEN_MethodCalled_THEN_RequestRejected(t *testing.T) {
executeAuthMiddlewareTest(t, false, http.StatusUnauthorized, 0)
}

View file

@ -1,44 +0,0 @@
package server
import (
"log"
"net/http"
"github.com/prometheus/client_golang/prometheus/promhttp"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/collector/f2b"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/collector/textfile"
)
const (
metricsPath = "/metrics"
)
func rootHtmlHandler(w http.ResponseWriter, r *http.Request) {
_, err := w.Write([]byte(
`<html>
<head><title>Fail2Ban Exporter</title></head>
<body>
<h1>Fail2Ban Exporter</h1>
<p><a href="` + metricsPath + `">Metrics</a></p>
</body>
</html>`))
if err != nil {
log.Printf("error handling root url: %v", err)
w.WriteHeader(http.StatusInternalServerError)
}
}
func metricHandler(w http.ResponseWriter, r *http.Request, collector *textfile.Collector) {
promhttp.Handler().ServeHTTP(w, r)
collector.WriteTextFileMetrics(w, r)
}
func healthHandler(w http.ResponseWriter, r *http.Request, collector *f2b.Collector) {
if collector.IsHealthy() {
w.WriteHeader(http.StatusOK)
w.Write([]byte("{\"healthy\":true}"))
} else {
w.WriteHeader(http.StatusInternalServerError)
w.Write([]byte("{\"healthy\":false}"))
}
}

View file

@ -1,48 +0,0 @@
package server
import (
"log"
"net/http"
"time"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/cfg"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/collector/f2b"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/collector/textfile"
)
func StartServer(
appSettings *cfg.AppSettings,
f2bCollector *f2b.Collector,
textFileCollector *textfile.Collector,
) chan error {
http.HandleFunc("/", AuthMiddleware(
rootHtmlHandler,
appSettings.AuthProvider,
))
http.HandleFunc(metricsPath, AuthMiddleware(
func(w http.ResponseWriter, r *http.Request) {
metricHandler(w, r, textFileCollector)
},
appSettings.AuthProvider,
))
http.HandleFunc("/health",
func(w http.ResponseWriter, r *http.Request) {
healthHandler(w, r, f2bCollector)
},
)
log.Printf("metrics available at '%s'", metricsPath)
svrErr := make(chan error)
go func() {
httpServer := &http.Server{
Addr: appSettings.MetricsAddress,
ReadHeaderTimeout: 10 * time.Second,
ReadTimeout: 10 * time.Second,
WriteTimeout: 10 * time.Second,
IdleTimeout: 30 * time.Second,
}
svrErr <- httpServer.ListenAndServe()
}()
log.Print("ready")
return svrErr
}

59
src/cfg/cfg.go Normal file
View file

@ -0,0 +1,59 @@
package cfg
import (
"flag"
"fmt"
"os"
)
const (
minServerPort = 1000
maxServerPort = 65535
)
type AppSettings struct {
VersionMode bool
MetricsPort int
Fail2BanSocketPath string
FileCollectorPath string
FileCollectorEnabled bool
}
func Parse() *AppSettings {
appSettings := &AppSettings{}
flag.BoolVar(&appSettings.VersionMode, "version", false, "show version info and exit")
flag.IntVar(&appSettings.MetricsPort, "port", 9191, "port to use for the metrics server")
flag.StringVar(&appSettings.Fail2BanSocketPath, "socket", "", "path to the fail2ban server socket")
flag.BoolVar(&appSettings.FileCollectorEnabled, "collector.textfile", false, "enable the textfile collector")
flag.StringVar(&appSettings.FileCollectorPath, "collector.textfile.directory", "", "directory to read text files with metrics from")
// deprecated: to be removed in next version
_ = flag.String("db", "", "path to the fail2ban sqlite database (removed)")
flag.Parse()
appSettings.validateFlags()
return appSettings
}
func (settings *AppSettings) validateFlags() {
var flagsValid = true
if !settings.VersionMode {
if settings.Fail2BanSocketPath == "" {
fmt.Println("fail2ban socket path must not be blank")
flagsValid = false
}
if settings.MetricsPort < minServerPort || settings.MetricsPort > maxServerPort {
fmt.Printf("invalid server port, must be within %d and %d (found %d)\n",
minServerPort, maxServerPort, settings.MetricsPort)
flagsValid = false
}
if settings.FileCollectorEnabled && settings.FileCollectorPath == "" {
fmt.Printf("file collector directory path must not be empty if collector enabled\n")
flagsValid = false
}
}
if !flagsValid {
flag.Usage()
os.Exit(1)
}
}

View file

@ -1,33 +1,29 @@
package f2b package f2b
import ( import (
"log" "fail2ban-prometheus-exporter/cfg"
"os" "fail2ban-prometheus-exporter/socket"
"github.com/prometheus/client_golang/prometheus" "github.com/prometheus/client_golang/prometheus"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/cfg" "log"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/socket"
) )
type Collector struct { type Collector struct {
socketPath string socketPath string
exporterVersion string exporterVersion string
lastError error lastError error
dbErrorCount int
socketConnectionErrorCount int socketConnectionErrorCount int
socketRequestErrorCount int socketRequestErrorCount int
exitOnSocketConnError bool
} }
func NewExporter(appSettings *cfg.AppSettings, exporterVersion string) *Collector { func NewExporter(appSettings *cfg.AppSettings, exporterVersion string) *Collector {
log.Printf("reading fail2ban metrics from socket file: %s", appSettings.Fail2BanSocketPath)
printFail2BanServerVersion(appSettings.Fail2BanSocketPath)
return &Collector{ return &Collector{
socketPath: appSettings.Fail2BanSocketPath, socketPath: appSettings.Fail2BanSocketPath,
exporterVersion: exporterVersion, exporterVersion: exporterVersion,
lastError: nil, lastError: nil,
dbErrorCount: 0,
socketConnectionErrorCount: 0, socketConnectionErrorCount: 0,
socketRequestErrorCount: 0, socketRequestErrorCount: 0,
exitOnSocketConnError: appSettings.ExitOnSocketConnError,
} }
} }
@ -46,9 +42,6 @@ func (c *Collector) Collect(ch chan<- prometheus.Metric) {
if err != nil { if err != nil {
log.Printf("error opening socket: %v", err) log.Printf("error opening socket: %v", err)
c.socketConnectionErrorCount++ c.socketConnectionErrorCount++
if c.exitOnSocketConnError {
os.Exit(1)
}
} else { } else {
defer s.Close() defer s.Close()
} }
@ -60,33 +53,3 @@ func (c *Collector) Collect(ch chan<- prometheus.Metric) {
} }
c.collectErrorCountMetric(ch) c.collectErrorCountMetric(ch)
} }
func (c *Collector) IsHealthy() bool {
s, err := socket.ConnectToSocket(c.socketPath)
if err != nil {
log.Printf("error opening socket: %v", err)
c.socketConnectionErrorCount++
return false
}
pingSuccess, err := s.Ping()
if err != nil {
log.Printf("error pinging fail2ban server: %v", err)
c.socketRequestErrorCount++
return false
}
return pingSuccess
}
func printFail2BanServerVersion(socketPath string) {
s, err := socket.ConnectToSocket(socketPath)
if err != nil {
log.Printf("error connecting to socket: %v", err)
} else {
version, err := s.GetServerVersion()
if err != nil {
log.Printf("error interacting with socket: %v", err)
} else {
log.Printf("successfully connected to fail2ban socket! fail2ban version: %s", version)
}
}
}

View file

@ -1,8 +1,8 @@
package f2b package f2b
import ( import (
"fail2ban-prometheus-exporter/socket"
"github.com/prometheus/client_golang/prometheus" "github.com/prometheus/client_golang/prometheus"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/socket"
"log" "log"
) )
@ -69,6 +69,9 @@ var (
) )
func (c *Collector) collectErrorCountMetric(ch chan<- prometheus.Metric) { func (c *Collector) collectErrorCountMetric(ch chan<- prometheus.Metric) {
ch <- prometheus.MustNewConstMetric(
metricErrorCount, prometheus.CounterValue, float64(c.dbErrorCount), "db",
)
ch <- prometheus.MustNewConstMetric( ch <- prometheus.MustNewConstMetric(
metricErrorCount, prometheus.CounterValue, float64(c.socketConnectionErrorCount), "socket_conn", metricErrorCount, prometheus.CounterValue, float64(c.socketConnectionErrorCount), "socket_conn",
) )

View file

@ -1,8 +1,8 @@
package textfile package textfile
import ( import (
"fail2ban-prometheus-exporter/cfg"
"github.com/prometheus/client_golang/prometheus" "github.com/prometheus/client_golang/prometheus"
"gitlab.com/hectorjsmith/fail2ban-prometheus-exporter/cfg"
"log" "log"
) )
@ -20,12 +20,12 @@ type fileData struct {
func NewCollector(appSettings *cfg.AppSettings) *Collector { func NewCollector(appSettings *cfg.AppSettings) *Collector {
collector := &Collector{ collector := &Collector{
enabled: appSettings.FileCollectorPath != "", enabled: appSettings.FileCollectorEnabled,
folderPath: appSettings.FileCollectorPath, folderPath: appSettings.FileCollectorPath,
fileMap: make(map[string]*fileData), fileMap: make(map[string]*fileData),
} }
if collector.enabled { if collector.enabled {
log.Printf("reading textfile metrics from: %s", collector.folderPath) log.Printf("collector.textfile directory: %s", collector.folderPath)
} }
return collector return collector
} }

View file

@ -1,12 +1,11 @@
package textfile package textfile
import ( import (
"github.com/prometheus/client_golang/prometheus"
"io/ioutil"
"log" "log"
"os"
"path/filepath" "path/filepath"
"strings" "strings"
"github.com/prometheus/client_golang/prometheus"
) )
const namespace = "textfile" const namespace = "textfile"
@ -20,7 +19,7 @@ var (
) )
func (c *Collector) collectFileContents() { func (c *Collector) collectFileContents() {
files, err := os.ReadDir(c.folderPath) files, err := ioutil.ReadDir(c.folderPath)
if err != nil { if err != nil {
log.Printf("error reading directory '%s': %v", c.folderPath, err) log.Printf("error reading directory '%s': %v", c.folderPath, err)
return return
@ -37,7 +36,7 @@ func (c *Collector) collectFileContents() {
} }
fullPath := filepath.Join(c.folderPath, fileName) fullPath := filepath.Join(c.folderPath, fileName)
content, err := os.ReadFile(fullPath) content, err := ioutil.ReadFile(fullPath)
if err != nil { if err != nil {
c.appendErrorForPath(fileName) c.appendErrorForPath(fileName)
log.Printf("error reading contents of file '%s': %v", fileName, err) log.Printf("error reading contents of file '%s': %v", fileName, err)

81
src/exporter.go Normal file
View file

@ -0,0 +1,81 @@
package main
import (
"fail2ban-prometheus-exporter/cfg"
"fail2ban-prometheus-exporter/collector/f2b"
"fail2ban-prometheus-exporter/collector/textfile"
"fmt"
"log"
"net/http"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
const (
metricsPath = "/metrics"
)
var (
version = "dev"
commit = "none"
date = "unknown"
builtBy = "unknown"
)
func printAppVersion() {
fmt.Println(version)
fmt.Printf(" build date: %s\r\n commit hash: %s\r\n built by: %s\r\n", date, commit, builtBy)
}
func rootHtmlHandler(w http.ResponseWriter, r *http.Request) {
_, err := w.Write([]byte(
`<html>
<head><title>Fail2Ban Exporter</title></head>
<body>
<h1>Fail2Ban Exporter</h1>
<p><a href="` + metricsPath + `">Metrics</a></p>
</body>
</html>`))
if err != nil {
log.Printf("error handling root url: %v", err)
w.WriteHeader(http.StatusInternalServerError)
}
}
func metricHandler(w http.ResponseWriter, r *http.Request, collector *textfile.Collector) {
promhttp.Handler().ServeHTTP(w, r)
collector.WriteTextFileMetrics(w, r)
}
func main() {
appSettings := cfg.Parse()
if appSettings.VersionMode {
printAppVersion()
} else {
addr := fmt.Sprintf("0.0.0.0:%d", appSettings.MetricsPort)
log.Printf("starting fail2ban exporter at %s", addr)
f2bCollector := f2b.NewExporter(appSettings, version)
prometheus.MustRegister(f2bCollector)
textFileCollector := textfile.NewCollector(appSettings)
prometheus.MustRegister(textFileCollector)
http.HandleFunc("/", rootHtmlHandler)
http.HandleFunc(metricsPath, func(w http.ResponseWriter, r *http.Request) {
metricHandler(w, r, textFileCollector)
})
log.Printf("metrics available at '%s'", metricsPath)
svrErr := make(chan error)
go func() {
svrErr <- http.ListenAndServe(addr, nil)
}()
log.Print("ready")
err := <-svrErr
log.Print(err)
}
}

9
src/go.mod Normal file
View file

@ -0,0 +1,9 @@
module fail2ban-prometheus-exporter
go 1.15
require (
github.com/kisielk/og-rek v1.1.0
github.com/nlpodyssey/gopickle v0.1.0
github.com/prometheus/client_golang v1.9.0
)

404
src/go.sum Normal file
View file

@ -0,0 +1,404 @@
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/Knetic/govaluate v3.0.1-0.20171022003610-9aa49832a739+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
github.com/Shopify/sarama v1.19.0/go.mod h1:FVkBWblsNy7DGZRfXLU0O9RCGt5g3g3yEuWXgklEdEo=
github.com/Shopify/toxiproxy v2.1.4+incompatible/go.mod h1:OXgGpZ6Cli1/URJOF1DMxUHB2q5Ap20/P/eIdh4G0pI=
github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
github.com/afex/hystrix-go v0.0.0-20180502004556-fa1af6a1f4f5/go.mod h1:SkGFH1ia65gfNATL8TAiHDNxPzPdmEL5uirI2Uyuz6c=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
github.com/apache/thrift v0.12.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
github.com/apache/thrift v0.13.0/go.mod h1:cp2SuWMxlEZw2r+iP2GNCdIi4C1qmUzdZFSVb+bacwQ=
github.com/armon/circbuf v0.0.0-20150827004946-bbbad097214e/go.mod h1:3U/XgcO3hCbHZ8TKRvWD2dDTCfh9M9ya+I9JpbB7O8o=
github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da/go.mod h1:Q73ZrmVTwzkszR9V5SSuryQ31EELlFMUz1kKyl939pY=
github.com/armon/go-radix v0.0.0-20180808171621-7fddfc383310/go.mod h1:ufUuZ+zHj4x4TnLV4JWEpy2hxWSpsRywHrMgIH9cCH8=
github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a/go.mod h1:DAHtR1m6lCRdSC2Tm3DSWRPvIPr6xNKyeHdqDQSQT+A=
github.com/aws/aws-lambda-go v1.13.3/go.mod h1:4UKl9IzQMoD+QF79YdCuzCwp8VbmG4VAQwij/eHl5CU=
github.com/aws/aws-sdk-go v1.27.0/go.mod h1:KmX6BPdI08NWTb3/sm4ZGu5ShLoqVDhKgpiN924inxo=
github.com/aws/aws-sdk-go-v2 v0.18.0/go.mod h1:JWVYvqSMppoMJC0x5wdwiImzgXTI9FuZwxzkQq9wy+g=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/bgentry/speakeasy v0.1.0/go.mod h1:+zsyZBPWlz7T6j88CTgSN5bM796AkVf0kBD4zp0CCIs=
github.com/casbin/casbin/v2 v2.1.2/go.mod h1:YcPU1XXisHhLzuxH9coDNf2FbKpjGlbCg3n9yuLkIJQ=
github.com/cenkalti/backoff v2.2.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
github.com/clbanning/x2j v0.0.0-20191024224557-825249438eec/go.mod h1:jMjuTZXRI4dUb/I5gc9Hdhagfvm9+RyrPryS/auMzxE=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cockroachdb/datadriven v0.0.0-20190809214429-80d97fb3cbaa/go.mod h1:zn76sxSg3SzpJ0PPJaLDCu+Bu0Lg3sKTORVIj19EIF8=
github.com/codahale/hdrhistogram v0.0.0-20161010025455-3a0bb77429bd/go.mod h1:sE/e/2PUdi/liOCUjSTXgM1o87ZssimdTWN964YiIeI=
github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
github.com/coreos/go-systemd v0.0.0-20180511133405-39ca1b05acc7/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
github.com/coreos/pkg v0.0.0-20160727233714-3ac0863d7acf/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
github.com/cpuguy83/go-md2man/v2 v2.0.0-20190314233015-f79a8a8ca69d/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7DoTY=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
github.com/eapache/go-resiliency v1.1.0/go.mod h1:kFI+JgMyC7bLPUVY133qvEBtVayf5mFgVsvEsIPBvNs=
github.com/eapache/go-xerial-snappy v0.0.0-20180814174437-776d5712da21/go.mod h1:+020luEh2TKB4/GOp8oxxtq0Daoen/Cii55CzbTV6DU=
github.com/eapache/queue v1.1.0/go.mod h1:6eCeP0CKFpHLu8blIFXhExK/dRa7WDZfr6jVFPTqq+I=
github.com/edsrzf/mmap-go v1.0.0/go.mod h1:YO35OhQPt3KJa3ryjFM5Bs14WD66h8eGKpfaBNrHW5M=
github.com/envoyproxy/go-control-plane v0.6.9/go.mod h1:SBwIajubJHhxtWwsL9s8ss4safvEdbitLhGGK48rN6g=
github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
github.com/franela/goblin v0.0.0-20200105215937-c9ffbefa60db/go.mod h1:7dvUGVsVBjqR7JHJk0brhHOZYGmfBYOrK0ZhYMEtBr4=
github.com/franela/goreq v0.0.0-20171204163338-bcd34c9993f8/go.mod h1:ZhphrRTfi2rbfLwlschooIH4+wKKDR4Pdxhh+TRoA20=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-kit/kit v0.10.0/go.mod h1:xUsJbQ/Fp4kEt7AFgCuvyX4a71u8h9jB8tj/ORgOZ7o=
github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG1KdI/P7A=
github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/gogo/googleapis v1.1.0/go.mod h1:gf4bu3Q80BeJ6H1S1vYPm8/ELATdvryBaNFGgqEef3s=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.2.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/groupcache v0.0.0-20160516000752-02826c3e7903/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
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github.com/oklog/oklog v0.3.2/go.mod h1:FCV+B7mhrz4o+ueLpx+KqkyXRGMWOYEvfiXtdGtbWGs=
github.com/oklog/run v1.0.0/go.mod h1:dlhp/R75TPv97u0XWUtDeV/lRKWPKSdTuV0TZvrmrQA=
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github.com/pact-foundation/pact-go v1.0.4/go.mod h1:uExwJY4kCzNPcHRj+hCR/HBbOOIwwtUjcrb0b5/5kLM=
github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
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github.com/performancecopilot/speed v3.0.0+incompatible/go.mod h1:/CLtqpZ5gBg1M9iaPbIdPPGyKcA8hKdoy6hAWba7Yac=
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golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190826190057-c7b8b68b1456/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20191220142924-d4481acd189f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200106162015-b016eb3dc98e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20201214210602-f9fddec55a1e h1:AyodaIpKjppX+cBfTASF2E1US3H2JFBj920Ot3rtDjs=
golang.org/x/sys v0.0.0-20201214210602-f9fddec55a1e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20180828015842-6cd1fcedba52/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190312170243-e65039ee4138/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
golang.org/x/tools v0.0.0-20190621195816-6e04913cbbac/go.mod h1:/rFqwRUd4F7ZHNgwSSTFct+R/Kf4OFW1sUzUTQQTgfc=
golang.org/x/tools v0.0.0-20191029041327-9cc4af7d6b2c/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
golang.org/x/tools v0.0.0-20200103221440-774c71fcf114/go.mod h1:TB2adYChydJhpapKDTa4BR/hXlZSLoq2Wpct/0txZ28=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543 h1:E7g+9GITq07hpfrRu66IVDexMakfv52eLZ2CXBWiKr4=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/api v0.3.1/go.mod h1:6wY9I6uQWHQ8EM57III9mq/AjF+i8G65rmVagqKMtkk=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.2.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190307195333-5fe7a883aa19/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRnGkLBvHegQrXjBqPurQTc5/KpmUdxsrq26oE=
google.golang.org/genproto v0.0.0-20190530194941-fb225487d101/go.mod h1:z3L6/3dTEVtUr6QSP8miRzeRqwQOioJ9I66odjN4I7s=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.20.0/go.mod h1:chYK+tFQF0nDUGJgXMSgLCQk3phJEuONr2DCgLDdAQM=
google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
google.golang.org/grpc v1.22.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
google.golang.org/protobuf v1.23.0 h1:4MY060fB1DLGMB/7MBTLnwQUY6+F09GEiz6SsrNqyzM=
google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qStrOgw=
gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/gcfg.v1 v1.2.3/go.mod h1:yesOnuUOFQAhST5vPY4nbZsb/huCgGGXlipJsBn0b3o=
gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/warnings.v0 v0.1.2/go.mod h1:jksf8JmL6Qr/oQM2OXTHunEvvTAsrWBLb6OOjuVWRNI=
gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
sigs.k8s.io/yaml v1.1.0/go.mod h1:UJmg0vDUVViEyp3mgSv9WPwZCDxu4rQW1olrI1uml+o=
sourcegraph.com/sourcegraph/appdash v0.0.0-20190731080439-ebfcffb1b5c0/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=

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@ -59,7 +59,7 @@ func (s *Fail2BanSocket) read() (interface{}, error) {
unpickler := pickle.NewUnpickler(bufReader) unpickler := pickle.NewUnpickler(bufReader)
unpickler.FindClass = func(module, name string) (interface{}, error) { unpickler.FindClass = func(module, name string) (interface{}, error) {
if (module == "builtins" || module == "__builtin__") && name == "str" { if module == "builtins" && name == "str" {
return &Py_builtins_str{}, nil return &Py_builtins_str{}, nil
} }
return nil, fmt.Errorf("class not found: " + module + " : " + name) return nil, fmt.Errorf("class not found: " + module + " : " + name)

60
tools/chglog/CHANGELOG.tpl.md Executable file
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@ -0,0 +1,60 @@
# CHANGELOG
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog], and this project adheres to [Semantic Versioning].
{{ if .Versions -}}
## [Unreleased]
{{- if .Unreleased.CommitGroups }}
{{ template "commits" .Unreleased.CommitGroups }}
{{- end -}}
{{- if .Unreleased.NoteGroups -}}
{{ template "notes" .Unreleased.NoteGroups }}
{{- end -}}
{{- end -}}
{{ range .Versions -}}
## {{ if .Tag.Previous }}[{{ .Tag.Name }}]{{ else }}{{ .Tag.Name }}{{ end }} - {{ datetime "2006-01-02" .Tag.Date }}
{{ template "commits" .CommitGroups }}
{{- if .NoteGroups -}}
{{ template "notes" .NoteGroups }}
{{- end -}}
{{ end }}
---
*This changelog is automatically generated by [git-chglog]*
[Keep a Changelog]: https://keepachangelog.com/en/1.0.0/
[Semantic Versioning]: https://semver.org/spec/v2.0.0.html
[git-chglog]: https://github.com/git-chglog/git-chglog
{{- if .Versions }}
[Unreleased]: {{ .Info.RepositoryURL }}/compare/{{ $latest := index .Versions 0 }}{{ $latest.Tag.Name }}...main
{{ range .Versions -}}
{{ if .Tag.Previous -}}
[{{ .Tag.Name }}]: {{ $.Info.RepositoryURL }}/compare/{{ .Tag.Previous.Name }}...{{ .Tag.Name }}
{{ end -}}
{{ end -}}
{{ end -}}
{{- define "notes" }}
{{- range . -}}
### {{ .Title }}
{{ range .Notes -}}
- {{ .Body }}
{{ end }}
{{ end }}
{{ end -}}
{{- define "commits" }}
{{- range . -}}
{{ if or (eq .RawTitle "feat") (eq .RawTitle "fix") }}
### {{ .Title }}
{{ range .Commits -}}
- ({{ .Hash.Short }}) {{ if .Scope }}**{{ .Scope }}:** {{ end }}{{ .Header }}
{{ end }}
{{ end -}}
{{ end -}}
{{ end -}}

23
tools/chglog/config.yml Executable file
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@ -0,0 +1,23 @@
style: gitlab
template: CHANGELOG.tpl.md
info:
title: CHANGELOG
repository_url: https://gitlab.com/hectorjsmith/fail2ban-prometheus-exporter
options:
commit_groups:
title_maps:
feat: Added
fix: Fixed
revert: Reverted
header:
pattern: "^(\\w*)\\:\\s(.*)$"
pattern_maps:
- Type
- Subject
notes:
keywords:
- BREAKING CHANGE
- Changed
- Deprecated
- Removed
- Security

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