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add CI and build steps

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The commit adds Github Actions and Dockerfile for building a multi arch Go image
This commit is contained in:
Gergin Darakov 2023-11-26 22:46:33 +02:00 committed by GitHub
parent ad57d371a4
commit b3bcee469c
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13 changed files with 370 additions and 41 deletions
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62
.github/workflows/ci.yml vendored
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@ -5,28 +5,76 @@ on:
tags:
- "v*.*.*"
pull_request:
paths:
- "go.sum"
- "go.mod"
- "**.go"
- ".github/workflows/ci.yml"
- ".golangci.yml"
branches:
- "main"
jobs:
tests:
name: Tests/Linters
name: Tests & Linters
runs-on: ubuntu-latest
steps:
- name: Set up Go
uses: actions/setup-go@v2
with:
go-version: '1.21' # Use the version of Go your project requires
go-version: '1.21'
- name: Check out code
uses: actions/checkout@v2
- name: "Run Linters"
uses: golangci/golangci-lint-action@latest
uses: golangci/golangci-lint-action@v3
with:
version: latest
args: --verbose
- name: Run tests
run: go test -v ./...
build:
name: Build & Publish on Tag
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@master
with:
fetch-depth: 1
- name: Get TAG
id: get_tag
run: echo TAG=${GITHUB_REF#refs/tags/} >> $GITHUB_ENV
- name: Docker meta
id: meta
uses: docker/metadata-action@v4
with:
images: |
st3ga/opnsense-exporter
tags: |
type=semver,pattern={{version}}
- name: Set up QEMU
uses: docker/setup-qemu-action@v2
- name: Set up Docker Buildx
uses: docker/setup-buildx-action@v2
- name: Login to Docker Hub
if: github.event_name != 'pull_request'
uses: docker/login-action@v2
with:
username: ${{ secrets.DOCKERHUB_USERNAME }}
password: ${{ secrets.DOCKERHUB_TOKEN }}
- name: Release build
id: release_build
uses: docker/build-push-action@v3
with:
platforms: linux/amd64,linux/arm/v6,linux/arm64
build-args: |
Version=${{ env.TAG }}
context: .
push: ${{ github.event_name != 'pull_request' }}
tags: ${{ steps.meta.outputs.tags }}
labels: ${{ steps.meta.outputs.labels }}

29
.golangci.yml
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@ -0,0 +1,29 @@
linters:
enable:
- misspell
- revive
disable:
- deadcode
- unused
- structcheck
- varcheck
issues:
exclude-rules:
- path: _test.go
linters:
- errcheck
linters-settings:
errcheck:
exclude-functions:
# Used in HTTP handlers, any error is handled by the server itself.
- (net/http.ResponseWriter).Write
# Never check for logger errors.
- (github.com/go-kit/log.Logger).Log
revive:
rules:
# https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#unused-parameter
- name: unused-parameter
severity: warning
disabled: true

27
Dockerfile
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@ -0,0 +1,27 @@
FROM --platform=${BUILDPLATFORM:-linux/amd64} golang:1.21 as build
ARG TARGETPLATFORM
ARG BUILDPLATFORM
ARG TARGETOS
ARG TARGETARCH
ARG Version
WORKDIR /go/src/github.com/st3ga/opnsense-exporter
COPY . .
RUN GOOS=${TARGETOS} GOARCH=${TARGETARCH} CGO_ENABLED=0 \
go build \
-tags osusergo,netgo \
-ldflags "-s -w -X main.version=${Version}" \
-o /usr/bin/opnsense-exporter .
FROM --platform=${BUILDPLATFORM:-linux/amd64} gcr.io/distroless/static-debian12:latest
LABEL org.opencontainers.image.source=https://github.com/st3ga/opnsense-exporter
LABEL org.opencontainers.image.version=${Version}
LABEL org.opencontainers.image.authors="the st3ga Authors admins@st3ga.com"
LABEL org.opencontainers.image.title="opnsense-exporter"
LABEL org.opencontainers.image.description="Prometheus exporter for OPNsense metrics"
COPY --from=build /usr/bin/opnsense-exporter /
CMD ["/opnsense-exporter"]

201
LICENSE Normal file
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@ -0,0 +1,201 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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You may add Your own copyright statement to Your modifications and
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5. Submission of Contributions. Unless You explicitly state otherwise,
any Contribution intentionally submitted for inclusion in the Work
by You to the Licensor shall be under the terms and conditions of
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Notwithstanding the above, nothing herein shall supersede or modify
the terms of any separate license agreement you may have executed
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6. Trademarks. This License does not grant permission to use the trade
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7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
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8. Limitation of Liability. In no event and under no legal theory,
whether in tort (including negligence), contract, or otherwise,
unless required by applicable law (such as deliberate and grossly
negligent acts) or agreed to in writing, shall any Contributor be
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incidental, or consequential damages of any character arising as a
result of this License or out of the use or inability to use the
Work (including but not limited to damages for loss of goodwill,
work stoppage, computer failure or malfunction, or any and all
other commercial damages or losses), even if such Contributor
has been advised of the possibility of such damages.
9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
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License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
of any other Contributor, and only if You agree to indemnify,
defend, and hold each Contributor harmless for any liability
incurred by, or claims asserted against, such Contributor by reason
of your accepting any such warranty or additional liability.
END OF TERMS AND CONDITIONS
APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
replaced with your own identifying information. (Don't include
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Copyright 2023 the st3ga Authors
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
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Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

10
README.md
View file

@ -6,12 +6,12 @@ The OPNsense exporter enables you to monitor your OPNsense firewall from the API
## Table of Contents
0. **[About](#about)**
1. **[OPNsense User Permissions](#opnsense-user-permissions)**
2. **[Usage](#usage)**
3. **[Configuration](#configuration)**
**[About](#about)**
**[OPNsense User Permissions](#opnsense-user-permissions)**
**[Usage](#usage)**
**[Configuration](#configuration)**
- **[SSL/TLS](#ssltls)**
4. **[Grafana Dashboard](#grafana-dashboard)**
**[Grafana Dashboard](#grafana-dashboard)**
## About

1
VERSION Normal file
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@ -0,0 +1 @@
0.1.0

8
internal/collector/gateways.go
View file

@ -30,23 +30,23 @@ func (c *gatewaysCollector) Register(namespace, instanceLabel string, log log.Lo
c.log = log
c.instance = instanceLabel
c.status = buildPrometheusDesc(c.subsystem, "status",
"Status of the gateway by name and address (1 = up, 0 = down, 2 = unkown)",
"Status of the gateway by name and address (1 = up, 0 = down, 2 = unknown)",
[]string{"name", "address"},
)
c.lossPercentage = buildPrometheusDesc(
c.subsystem, "loss_percentage",
"The current gateway loss percentage by name and address",
[]string{"name", "adress"},
[]string{"name", "address"},
)
c.rtt = buildPrometheusDesc(
c.subsystem, "rtt_milliseconds",
"RTT is the average (mean) of the round trip time in milliseconds by name and address",
[]string{"name", "adress"},
[]string{"name", "address"},
)
c.rttd = buildPrometheusDesc(
c.subsystem, "rttd_milliseconds",
"RTTd is the standard deviation of the round trip time in milliseconds by name and address",
[]string{"name", "adress"},
[]string{"name", "address"},
)
}

8
internal/collector/interfaces.go
View file

@ -46,16 +46,16 @@ func (c *interfacesCollector) Register(namespace, instanceLabel string, log log.
"Bytes received on this interface by interface name and device",
[]string{"interface", "device", "type"},
)
c.bytesTransmited = buildPrometheusDesc(c.subsystem, "transmited_bytes_total",
"Bytes transmited on this interface by interface name and device",
c.bytesTransmited = buildPrometheusDesc(c.subsystem, "transmitted_bytes_total",
"Bytes transmitted on this interface by interface name and device",
[]string{"interface", "device", "type"},
)
c.multicastsReceived = buildPrometheusDesc(c.subsystem, "received_multicasts_total",
"Multicasts received on this interface by interface name and device",
[]string{"interface", "device", "type"},
)
c.multicastsTransmitted = buildPrometheusDesc(c.subsystem, "transmited_multicasts_total",
"Multicasts transmited on this interface by interface name and device",
c.multicastsTransmitted = buildPrometheusDesc(c.subsystem, "transmitted_multicasts_total",
"Multicasts transmitted on this interface by interface name and device",
[]string{"interface", "device", "type"},
)
c.inputErrors = buildPrometheusDesc(c.subsystem, "input_errors_total",

12
main.go
View file

@ -92,8 +92,16 @@ func main() {
Level: &promlog.AllowedLevel{},
Format: &promlog.AllowedFormat{},
}
promlogConfig.Level.Set(*logLevel)
promlogConfig.Format.Set(*logFormat)
if err := promlogConfig.Level.Set(*logLevel); err != nil {
fmt.Fprintf(os.Stderr, "error setting log level: %v\n", err)
os.Exit(1)
}
if err := promlogConfig.Format.Set(*logFormat); err != nil {
fmt.Fprintf(os.Stderr, "error setting log format: %v\n", err)
os.Exit(1)
}
logger := promlog.New(promlogConfig)

4
opnsense/client.go
View file

@ -41,7 +41,7 @@ type Client struct {
}
// NewClient creates a new OPNsense API Client
func NewClient(protocol, adress, key, secret, userAgentVersion string, sslInsecure bool, log log.Logger) (Client, error) {
func NewClient(protocol, address, key, secret, userAgentVersion string, sslInsecure bool, log log.Logger) (Client, error) {
sslPool, err := x509.SystemCertPool()
@ -61,7 +61,7 @@ func NewClient(protocol, adress, key, secret, userAgentVersion string, sslInsecu
}
client := Client{
log: log,
baseURL: fmt.Sprintf("%s://%s", protocol, adress),
baseURL: fmt.Sprintf("%s://%s", protocol, address),
key: key,
secret: secret,
gatewayLossRegex: gatewayLossRegex,

17
opnsense/interfaces.go
View file

@ -63,23 +63,6 @@ type Interfaces struct {
Interfaces []Interface
}
// sliceIntToMapStringInt is a helper function to convert a slice of strings to a map of string:int
// The key of the map is the string value in the slice and
// the value of the map is the int value of the string.
func sliceIntToMapStringInt(strings []string, url EndpointPath) (map[string]int, *APICallError) {
ints := make(map[string]int)
for _, str := range strings {
value, err := parseStringToInt(str, url)
if err != nil {
return nil, err
}
ints[str] = value
}
return ints, nil
}
func (c *Client) FetchInterfaces() (Interfaces, *APICallError) {
var resp interfaceResponse
var data Interfaces

20
opnsense/utils.go
View file

@ -49,3 +49,23 @@ func parseStringToFloatWithReplace(value string, regex *regexp.Regexp, replacePa
)
return -1.0
}
// sliceIntToMapStringInt is a helper function to convert a slice of strings to a map of string:int
// The key of the map is the string value in the slice and
// the value of the map is the int value of the string.
// The endpoint is used to identify the EndpointPath that the caller used.
// so we can propagate in the *APICallError.
// Fails if any of the string values in the slice cannot be parsed to an int.
func sliceIntToMapStringInt(strings []string, url EndpointPath) (map[string]int, *APICallError) {
ints := make(map[string]int)
for _, str := range strings {
value, err := parseStringToInt(str, url)
if err != nil {
return nil, err
}
ints[str] = value
}
return ints, nil
}

12
opnsense/utils_test.go
View file

@ -1,6 +1,7 @@
package opnsense
import (
"reflect"
"regexp"
"testing"
@ -68,3 +69,14 @@ func TestParsePercentage(t *testing.T) {
})
}
}
func TestSliceIntToMapStringInt(t *testing.T) {
input := []string{"1", "2", "3"}
expected := map[string]int{"1": 1, "2": 2, "3": 3}
result, _ := sliceIntToMapStringInt(input, "test")
if !reflect.DeepEqual(result, expected) {
t.Errorf("Expected %v, got %v", expected, result)
}
}