106 lines
4 KiB
Markdown
106 lines
4 KiB
Markdown
# dockviz: Visualizing Docker Data
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This command takes Docker image and container information and presents in
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different ways, to help you understand what's going on inside the system.
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# Quick Start
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1. Download the [latest release](https://github.com/justone/dockviz/releases).
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2. Visualize images by running `dockviz images -t`, which has similar output to `docker images -t`.
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Image can be visualized as [Graphviz](http://www.graphviz.org), or as a tree or short summary in the terminal. Only Graphviz output has been implemented for containers.
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# Output Examples
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## Containers
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Currently, containers are visualized with labeled lines for links. Containers that aren't running are greyed out.
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```
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$ dockviz containers -d | dot -Tpng -o containers.png
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```
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## Images
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Image info is visualized with lines indicating parent images:
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```
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$ dockviz images -d | dot -Tpng -o images.png
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```
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Or in short form:
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```
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$ dockviz images -s
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nate/mongodb: latest
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redis: latest
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ubuntu: 12.04, precise, 12.10, quantal, 13.04, raring
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```
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Or as a tree in the terminal:
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```
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$ dockviz images -t
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└─511136ea3c5a Virtual Size: 0.0 B
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|─f10ebce2c0e1 Virtual Size: 103.7 MB
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| └─82cdea7ab5b5 Virtual Size: 103.9 MB
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| └─5dbd9cb5a02f Virtual Size: 103.9 MB
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| └─74fe38d11401 Virtual Size: 209.6 MB Tags: ubuntu:12.04, ubuntu:precise
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|─ef519c9ee91a Virtual Size: 100.9 MB
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| └─07302703becc Virtual Size: 101.2 MB
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| └─cf8dc907452c Virtual Size: 101.2 MB
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| └─a7cf8ae4e998 Virtual Size: 171.3 MB Tags: ubuntu:12.10, ubuntu:quantal
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| |─e18d8001204e Virtual Size: 171.3 MB
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| | └─d0525208a46c Virtual Size: 171.3 MB
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| | └─59dac4bae93b Virtual Size: 242.5 MB
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| | └─89541b3b35f2 Virtual Size: 511.8 MB
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| | └─7dac4e98548e Virtual Size: 511.8 MB
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| | └─341d0cc3fac8 Virtual Size: 511.8 MB
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| | └─2f96171d2098 Virtual Size: 511.8 MB
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| | └─67b8b7262a67 Virtual Size: 513.7 MB
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| | └─0fe9a2bc50fe Virtual Size: 513.7 MB
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| | └─8c32832f07ba Virtual Size: 513.7 MB
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| | └─cc4e1358bc80 Virtual Size: 513.7 MB
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| | └─5c0d04fba9df Virtual Size: 513.7 MB Tags: nate/mongodb:latest
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| └─398d592f2009 Virtual Size: 242.2 MB
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| └─0cd8e7f50270 Virtual Size: 243.6 MB
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| └─594b6f8e6f92 Virtual Size: 243.6 MB
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| └─f832a63e87a4 Virtual Size: 243.6 MB Tags: redis:latest
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└─02dae1c13f51 Virtual Size: 98.3 MB
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└─e7206bfc66aa Virtual Size: 98.5 MB
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└─cb12405ee8fa Virtual Size: 98.5 MB
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└─316b678ddf48 Virtual Size: 169.4 MB Tags: ubuntu:13.04, ubuntu:raring
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```
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# Running
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Dockviz supports connecting to the Docker daemon directly. It defaults to `unix:///var/run/docker.sock`, but respects the following as well:
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* The `DOCKER_HOST`, `DOCKER_CERT_PATH`, and `DOCKER_TLS_VERIFY` environment variables, as set up by [boot2docker](http://boot2docker.io/) or [docker-machine](https://docs.docker.com/machine/).
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* Command line arguments (e.g. `--tlscacert`), like those that Docker itself supports.
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Dockviz also supports receiving Docker image or container json data on standard input.
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```
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$ curl -s http://localhost:4243/images/json?all=1 | dockviz images --tree
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$ curl -s http://localhost:4243/containers/json?all=1 | dockviz containers --dot | dot -Tpng -o containers.png
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$ echo -e "GET /images/json?all=1 HTTP/1.0\r\n" | nc -U /var/run/docker.sock | tail -n +5 | dockviz images --tree
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$ echo -e "GET /containers/json?all=1 HTTP/1.0\r\n" | nc -U /var/run/docker.sock | tail -n +5 | dockviz containers --dot | dot -Tpng -o containers.png
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```
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Note: GNU netcat doesn't support `-U` (UNIX socket) flag, so OpenBSD variant can be used.
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# Binaries
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See the [releases](https://github.com/justone/dockviz/releases) area for binaries.
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# Build
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```bash
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go get ./...
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go build
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```
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