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Merge pull request #2191 from feiskyer/cri
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Update docs for cri-tools
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k8s-ci-robot authored Jun 11, 2018
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35 changes: 20 additions & 15 deletions contributors/devel/cri-validation.md
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CRI validation testing provides a test framework and a suite of tests to validate that the Container Runtime Interface (CRI) server implementation meets all the requirements. This allows the CRI runtime developers to verify that their runtime conforms to CRI, without needing to set up Kubernetes components or run Kubernetes end-to-end tests.

CRI validation testing is currently Alpha and is hosted at the [cri-tools](https://github.com/kubernetes-incubator/cri-tools) repository. Performance benchmarking will be added in the future. We encourage the CRI developers to report bugs or help extend the test coverage by adding more tests.
CRI validation testing is GA since v1.11.0 and is hosted at the [cri-tools](https://github.com/kubernetes-incubator/cri-tools) repository. We encourage the CRI developers to report bugs or help extend the test coverage by adding more tests.

## Install

The test suites can be installed easily via `go get` command:
The test suites can be downloaded from cri-tools [release page](https://github.com/kubernetes-incubator/cri-tools/releases):

```sh
go get github.com/kubernetes-incubator/cri-tools/cmd/critest
VERSION="v1.11.0"
wget https://github.com/kubernetes-incubator/cri-tools/releases/download/$VERSION/critest-$VERSION-linux-amd64.tar.gz
sudo tar zxvf critest-$VERSION-linux-amd64.tar.gz -C /usr/local/bin
rm -f critest-$VERSION-linux-amd64.tar.gz
```

Then `critest` binary can be found in `$GOPATH/bin`.
critest requires [ginkgo](https://github.com/onsi/ginkgo) to run parallel tests. It could be installed by

*Note: ensure GO is installed and GOPATH is set before installing critest.*
```sh
go get -u github.com/onsi/ginkgo/ginkgo
```

*Note: ensure GO is installed and GOPATH is set before installing ginkgo.*

## Running tests

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### Run

```sh
critest validation
critest
```

This will
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- Run the tests using `ginkgo`
- Output the test results to STDOUT

critest connects to `/var/run/dockershim.sock` by default. For other runtimes, the endpoint can be set in two ways:

- By setting flags `--runtime-endpoint` and `--image-endpoint`
- By setting environment variables `CRI_RUNTIME_ENDPOINT` and `CRI_IMAGE_ENDPOINT`
critest connects to `unix:///var/run/dockershim.sock` by default. For other runtimes, the endpoint can be set by flags `-runtime-endpoint` and `-image-endpoint`.

## Additional options

- `--focus`, `-f`: Only run the tests that match the regular expression.
- -`-ginkgo-flags`, `-g`: Space-separated list of arguments to pass to Ginkgo test runner.
- `--image-endpoint`, `-i`: Set the endpoint of image service. Same with runtime-endpoint if not specified.
- `--runtime-endpoint`, `-r`: Set the endpoint of runtime service. Default to `/var/run/dockershim.sock`.
- `--skip`, `-s`: Skip the tests that match the regular expression.
- `-ginkgo.focus`: Only run the tests that match the regular expression.
- `-image-endpoint`: Set the endpoint of image service. Same with runtime-endpoint if not specified.
- `-runtime-endpoint`: Set the endpoint of runtime service. Default to `unix:///var/run/dockershim.sock`.
- `-ginkgo.skip`: Skip the tests that match the regular expression.
- `-parallel`: The number of parallel test nodes to run (default 1). ginkgo must be installed to run parallel tests.
- `-h`: Show help and all supported options.

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