A Python library for the Docker Engine API
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Sebastiaan van Stijn bc46490a68
Adjust `--platform` tests for changes in docker engine
These tests started failing on recent versions of the engine because the error string changed,
and due to a regression, the status code for one endpoint changed from a 400 to a 500.

On Docker 18.03:

The `docker build` case properly returns a 400, and "invalid platform" as error string;

```bash
docker build --platform=foobar -<<EOF
FROM busybox
EOF

Sending build context to Docker daemon  2.048kB
Error response from daemon: invalid platform: invalid platform os "foobar"
```

```
DEBU[2019-07-15T12:17:22.745511870Z] Calling GET /_ping
DEBU[2019-07-15T12:17:22.748224796Z] Calling POST /session
DEBU[2019-07-15T12:17:22.748692282Z] Calling POST /v1.37/build?buildargs=%7B%7D&cachefrom=%5B%5D&cgroupparent=&cpuperiod=0&cpuquota=0&cpusetcpus=&cpusetmems=&cpushares=0&dockerfile=Dockerfile&labels=%7B%7D&memory=0&memswap=0&networkmode=default&platform=foobar&rm=1&session=d7b6ceba9d8d0aed67a805528554feb5285781fe888a4bf4e0c15cb09bffd614&shmsize=0&target=&ulimits=null
```

The `docker pull --platform=foobar hello-world:latest` case incorrectly returns a 500

```
DEBU[2019-07-15T12:16:08.744827612Z] Calling POST /v1.37/images/create?fromImage=hello-world&platform=foobar&tag=latest
DEBU[2019-07-15T12:16:08.745594874Z] FIXME: Got an API for which error does not match any expected type!!!: invalid platform: invalid platform os "foobar"  error_type="*errors.errorString" module=api
ERRO[2019-07-15T12:16:08.745916686Z] Handler for POST /v1.37/images/create returned error: invalid platform: invalid platform os "foobar"
DEBU[2019-07-15T12:16:08.746191172Z] FIXME: Got an API for which error does not match any expected type!!!: invalid platform: invalid platform os "foobar"  error_type="*errors.errorString" module=api
```

On Docker 18.09;

```bash
docker build --platform=foobar -<<EOF
FROM busybox
EOF

Error response from daemon: "foobar": unknown operating system or architecture: invalid argument
```

Which incorrectly returns a 500 status;

```
DEBU[2019-07-15T11:59:20.687268380Z] Calling POST /v1.39/build?buildargs=%7B%7D&cachefrom=%5B%5D&cgroupparent=&cpuperiod=0&cpuquota=0&cpusetcpus=&cpusetmems=&cpushares=0&dockerfile=Dockerfile&labels=%7B%7D&memory=0&memswap=0&networkmode=default&platform=foobar&rm=1&session=jko7kejjvs93judyfnq7shoda&shmsize=0&target=&ulimits=null&version=1
DEBU[2019-07-15T11:59:20.687282279Z] Calling POST /session
INFO[2019-07-15T11:59:20.687761392Z] parsed scheme: ""                             module=grpc
INFO[2019-07-15T11:59:20.687833668Z] scheme "" not registered, fallback to default scheme  module=grpc
INFO[2019-07-15T11:59:20.688017578Z] ccResolverWrapper: sending new addresses to cc: [{ 0  <nil>}]  module=grpc
INFO[2019-07-15T11:59:20.688270160Z] ClientConn switching balancer to "pick_first"  module=grpc
INFO[2019-07-15T11:59:20.688353083Z] pickfirstBalancer: HandleSubConnStateChange: 0xc4209b0630, CONNECTING  module=grpc
INFO[2019-07-15T11:59:20.688985698Z] pickfirstBalancer: HandleSubConnStateChange: 0xc4209b0630, READY  module=grpc
DEBU[2019-07-15T11:59:20.812700550Z] client is session enabled
DEBU[2019-07-15T11:59:20.813139288Z] FIXME: Got an API for which error does not match any expected type!!!: invalid argument
github.com/docker/docker/vendor/github.com/containerd/containerd/errdefs.init
	/go/src/github.com/docker/docker/vendor/github.com/containerd/containerd/errdefs/errors.go:40
github.com/docker/docker/vendor/github.com/containerd/containerd/content.init
	<autogenerated>:1
github.com/docker/docker/builder/builder-next.init
	<autogenerated>:1
github.com/docker/docker/api/server/backend/build.init
	<autogenerated>:1
main.init
	<autogenerated>:1
runtime.main
	/usr/local/go/src/runtime/proc.go:186
runtime.goexit
	/usr/local/go/src/runtime/asm_amd64.s:2361  error_type="*errors.fundamental" module=api
ERRO[2019-07-15T11:59:20.813210677Z] Handler for POST /v1.39/build returned error: "foobar": unknown operating system or architecture: invalid argument
DEBU[2019-07-15T11:59:20.813276737Z] FIXME: Got an API for which error does not match any expected type!!!: invalid argument
github.com/docker/docker/vendor/github.com/containerd/containerd/errdefs.init
	/go/src/github.com/docker/docker/vendor/github.com/containerd/containerd/errdefs/errors.go:40
github.com/docker/docker/vendor/github.com/containerd/containerd/content.init
	<autogenerated>:1
github.com/docker/docker/builder/builder-next.init
	<autogenerated>:1
github.com/docker/docker/api/server/backend/build.init
	<autogenerated>:1
main.init
	<autogenerated>:1
runtime.main
	/usr/local/go/src/runtime/proc.go:186
runtime.goexit
	/usr/local/go/src/runtime/asm_amd64.s:2361  error_type="*errors.fundamental" module=api
```

Same for the `docker pull --platform=foobar hello-world:latest` case:

```bash
docker pull --platform=foobar hello-world:latest
Error response from daemon: "foobar": unknown operating system or architecture: invalid argument
```

```
DEBU[2019-07-15T12:00:18.812995330Z] Calling POST /v1.39/images/create?fromImage=hello-world&platform=foobar&tag=latest
DEBU[2019-07-15T12:00:18.813229172Z] FIXME: Got an API for which error does not match any expected type!!!: invalid argument
github.com/docker/docker/vendor/github.com/containerd/containerd/errdefs.init
	/go/src/github.com/docker/docker/vendor/github.com/containerd/containerd/errdefs/errors.go:40
github.com/docker/docker/vendor/github.com/containerd/containerd/content.init
	<autogenerated>:1
github.com/docker/docker/builder/builder-next.init
	<autogenerated>:1
github.com/docker/docker/api/server/backend/build.init
	<autogenerated>:1
main.init
	<autogenerated>:1
runtime.main
	/usr/local/go/src/runtime/proc.go:186
runtime.goexit
	/usr/local/go/src/runtime/asm_amd64.s:2361  error_type="*errors.fundamental" module=api
ERRO[2019-07-15T12:00:18.813365546Z] Handler for POST /v1.39/images/create returned error: "foobar": unknown operating system or architecture: invalid argument
DEBU[2019-07-15T12:00:18.813461428Z] FIXME: Got an API for which error does not match any expected type!!!: invalid argument
github.com/docker/docker/vendor/github.com/containerd/containerd/errdefs.init
	/go/src/github.com/docker/docker/vendor/github.com/containerd/containerd/errdefs/errors.go:40
github.com/docker/docker/vendor/github.com/containerd/containerd/content.init
	<autogenerated>:1
github.com/docker/docker/builder/builder-next.init
	<autogenerated>:1
github.com/docker/docker/api/server/backend/build.init
	<autogenerated>:1
main.init
	<autogenerated>:1
runtime.main
	/usr/local/go/src/runtime/proc.go:186
runtime.goexit
	/usr/local/go/src/runtime/asm_amd64.s:2361  error_type="*errors.fundamental" module=api
```

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2019-07-15 15:48:06 +02:00
docker Clean up healtcheck.py docs 2019-05-31 09:13:30 +00:00
docs Changelog 4.0.1 2019-05-18 20:27:35 -07:00
scripts Fix versions.py to include release stage 2019-04-30 23:16:09 -07:00
tests Adjust `--platform` tests for changes in docker engine 2019-07-15 15:48:06 +02:00
.coveragerc Add coverage 2014-07-11 16:13:00 +02:00
.dockerignore Makes docs builds faster and ensures proper ownership 2017-04-15 15:46:52 +02:00
.editorconfig Add EditorConfig to the repo. 2015-10-22 14:06:45 +00:00
.gitignore Add new Sphinx documentation 2016-11-22 17:05:43 +00:00
.readthedocs.yml Add readthedocs config 2019-05-18 19:13:45 -07:00
.travis.yml Stop supporting EOL Python 3.4 2019-05-01 19:51:29 -07:00
CONTRIBUTING.md Rename non-URL occurrences of docker-py to "Docker SDK for Python" 2016-12-12 13:28:49 -08:00
Dockerfile Merge pull request #1315 from bfirsh/rename-docker-py-to-docker-sdk-python 2016-12-02 15:20:34 -08:00
Dockerfile-docs Makes docs builds faster and ensures proper ownership 2017-04-15 15:46:52 +02:00
Dockerfile-py3 Add Python 3.6 testing 2018-01-22 18:08:01 -08:00
Jenkinsfile New Jenkinsfile build instructions 2019-04-30 23:37:55 -07:00
LICENSE Fix licenses 2016-09-05 17:48:09 +02:00
MAINTAINERS Update MAINTAINERS file 2018-03-29 16:25:14 -07:00
MANIFEST.in Make dockerpycreds part of the SDK under docker.credentials 2019-04-30 23:37:55 -07:00
Makefile Merge pull request #2328 from docker/modernize_test_deps 2019-05-01 02:48:05 -07:00
README.md Require "requests[security]" if the `[tls]` option is selected, which also installs: 2017-08-17 13:38:40 -07:00
appveyor.yml Add Python 3.6 testing 2018-01-22 18:08:01 -08:00
docs-requirements.txt Add new Sphinx documentation 2016-11-22 17:05:43 +00:00
pytest.ini Re-enable stdout/stderr capturing in tests 2016-01-25 11:43:23 +00:00
requirements.txt Bump websocket-client -> 0.56.0 2019-06-19 14:09:47 +02:00
setup.cfg Add License to PyPi metadata 2017-03-17 13:39:55 -04:00
setup.py Stop supporting EOL Python 3.4 2019-05-01 19:51:29 -07:00
test-requirements.txt Stop supporting EOL Python 3.4 2019-05-01 19:51:29 -07:00
tox.ini Stop supporting EOL Python 3.4 2019-05-01 19:51:29 -07:00

README.md

Docker SDK for Python

Build Status

A Python library for the Docker Engine API. It lets you do anything the docker command does, but from within Python apps run containers, manage containers, manage Swarms, etc.

Installation

The latest stable version is available on PyPI. Either add docker to your requirements.txt file or install with pip:

pip install docker

If you are intending to connect to a docker host via TLS, add docker[tls] to your requirements instead, or install with pip:

pip install docker[tls]

Usage

Connect to Docker using the default socket or the configuration in your environment:

import docker
client = docker.from_env()

You can run containers:

>>> client.containers.run("ubuntu:latest", "echo hello world")
'hello world\n'

You can run containers in the background:

>>> client.containers.run("bfirsh/reticulate-splines", detach=True)
<Container '45e6d2de7c54'>

You can manage containers:

>>> client.containers.list()
[<Container '45e6d2de7c54'>, <Container 'db18e4f20eaa'>, ...]

>>> container = client.containers.get('45e6d2de7c54')

>>> container.attrs['Config']['Image']
"bfirsh/reticulate-splines"

>>> container.logs()
"Reticulating spline 1...\n"

>>> container.stop()

You can stream logs:

>>> for line in container.logs(stream=True):
...   print line.strip()
Reticulating spline 2...
Reticulating spline 3...
...

You can manage images:

>>> client.images.pull('nginx')
<Image 'nginx'>

>>> client.images.list()
[<Image 'ubuntu'>, <Image 'nginx'>, ...]

Read the full documentation to see everything you can do.