forked from mirrors/docker-distribution
Integration test readme update
Updates the readme to mention running the tests using golem. Also provides instructions for making test development easier. Signed-off-by: Derek McGowan <derek@mcgstyle.net> (github: dmcgowan)
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Derek McGowan
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# Docker Registry Integration Testing
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These integration tests cover interactions between the Docker daemon and the
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registry server. All tests are run using the docker cli.
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These integration tests cover interactions between registry clients such as
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the docker daemon and the registry server. All tests can be run using the
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[golem integration test runner](https://github.com/docker/golem)
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The compose configuration is intended to setup a testing environment for Docker
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using multiple registry configurations. These configurations include different
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combinations of a v1 and v2 registry as well as TLS configurations.
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The integration tests configure components using docker compose
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(see docker-compose.yaml) and the runner can be using the golem
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configuration file (see golem.conf).
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## Running inside of Docker
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### Get integration container
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The container image to run the integation tests will need to be pulled or built
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locally.
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## Running integration tests
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*Building locally*
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```
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$ docker build -t distribution/docker-integration .
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```
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### Run using multiversion script
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### Run script
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The integration tests in the `contrib/docker-integration` directory can be simply
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run by executing the run script `./run_multiversion.sh`. If there is no running
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daemon to connect to, run as `./run_multiversion.sh -d`.
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Invoke the tests within Docker through the `run.sh` script.
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This command will build the distribution image from the locally checked out
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version and run against multiple versions of docker defined in the script. To
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run a specific version of the registry or docker, Golem will need to be
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executed manually.
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```
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$ ./run.sh
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```
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### Run manually using Golem
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Run with aufs driver and tmp volume
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**NOTE: Using a volume will prevent multiple runs from needing to
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re-pull images**
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```
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$ DOCKER_GRAPHDRIVER=aufs DOCKER_VOLUME=/tmp/volume ./run.sh
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```
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Using the golem tool directly allows running against multiple versions of
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the registry and docker. Running against multiple versions of the registry
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can be useful for testing changes in the docker daemon which are not
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covered by the default run script.
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### Example developer flow
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#### Installing Golem
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These tests are useful for developing both as a registry and docker
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core developer. The following setup may be used to do integration
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testing between development versions
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Golem is distributed as an executable binary which can be installed from
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the [release page](https://github.com/docker/golem/releases/tag/v0.1).
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Insert into your `.zshrc` or `.bashrc`
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#### Running golem with docker
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```
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# /usr/lib/docker for Docker-in-Docker
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# Set this directory to make each invocation run much faster, without
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# the need to repull images.
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export DOCKER_VOLUME=$HOME/.docker-test-volume
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Additionally golem can be run as a docker image requiring no additonal
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installation.
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# Use overlay for all Docker testing, try aufs if overlay not supported
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export DOCKER_GRAPHDRIVER=overlay
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`docker run --privileged -v "$GOPATH/src/github.com/docker/distribution/contrib/docker-integration:/test" -w /test distribution/golem golem -rundaemon .`
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# Name this according to personal preference
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function rdtest() {
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if [ "$1" != "" ]; then
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DOCKER_BINARY=$GOPATH/src/github.com/docker/docker/bundles/$1/binary/docker
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if [ ! -f $DOCKER_BINARY ]; then
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current_version=`cat $GOPATH/src/github.com/docker/docker/VERSION`
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echo "$DOCKER_BINARY does not exist"
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echo "Current checked out docker version: $current_version"
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echo "Checkout desired version and run 'make binary' from $GOPATH/src/github.com/docker/docker"
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return 1
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fi
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fi
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#### Golem custom images
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$GOPATH/src/github.com/docker/distribution/contrib/docker-integration/run.sh
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}
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```
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Golem tests version of software by defining the docker image to test.
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Run with Docker release version
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```
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$ rdtest
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```
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Run with registry 2.2.1 and docker 1.10.3
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Run using local development version of docker
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```
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$ cd $GOPATH/src/github.com/docker/docker
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$ make binary
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$ rdtest `cat VERSION`
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```
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`golem -i golem-dind:latest,docker:1.10.3-dind,1.10.3 -i golem-distribution:latest,registry:2.2.1 .`
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## Running manually outside of Docker
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### Install Docker Compose
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#### Use golem caching for developing tests
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[Docker Compose Installation Guide](https://docs.docker.com/compose/install/)
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Golem allows caching image configuration to reduce test start up time.
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Using this cache will allow tests with the same set of images to start
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up quickly. This can be useful when developing tests and needing the
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test to run quickly. If there are changes which effect the image (such as
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building a new registry image), then startup time will be slower.
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### Start compose setup
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```
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docker-compose up
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```
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Run this command multiple times and after the first time test runs
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should start much quicker.
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`golem -cache ~/.cache/docker/golem -i golem-dind:latest,docker:1.10.3-dind,1.10.3 -i golem-distribution:latest,registry:2.2.1 .`
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### Install Certificates
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The certificates must be installed in /etc/docker/cert.d in order to use TLS
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client auth and use the CA certificate.
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```
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sudo sh ./install_certs.sh
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```
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### Test with Docker
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Tag an image as with any other private registry. Attempt to push the image.
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```
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docker pull hello-world
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docker tag hello-world localhost:5440/hello-world
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docker push localhost:5440/hello-world
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docker tag hello-world localhost:5441/hello-world
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docker push localhost:5441/hello-world
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# Perform login using user `testuser` and password `passpassword`
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```
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### Set /etc/hosts entry
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Find the non-localhost ip address of local machine
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### Run bats
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Run the bats tests after updating /etc/hosts, installing the certificates, and
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running the `docker-compose` script.
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```
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bats -p .
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```
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## Configurations
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Port | V2 | TLS | Authentication
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--- | --- | --- | ---
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5000 | yes | no | none
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5002 | yes | no | none
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5440 | yes | yes | none
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5441 | yes | yes | basic (testuser/passpassword)
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5442 | yes | yes | TLS client
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5443 | yes | yes | TLS client (no CA)
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5444 | yes | yes | TLS client + basic (testuser/passpassword)
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5445 | yes | yes (no CA) | none
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5446 | yes | yes (no CA) | basic (testuser/passpassword)
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5447 | yes | yes (no CA) | TLS client
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5448 | yes | yes (SSLv3) | none
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