|
| 1 | +# Devito Actions |
| 2 | + |
| 3 | +The Devito actions can either be used from the Github interface: |
| 4 | +```yaml |
| 5 | +uses: devitocodes/devito/.github/actions/docker-build@main |
| 6 | +``` |
| 7 | +
|
| 8 | +Or internally from within the repository: |
| 9 | +```yaml |
| 10 | +uses: ./.github/actions/docker-run |
| 11 | +``` |
| 12 | +
|
| 13 | +## `docker-build` |
| 14 | + |
| 15 | +Inputs: |
| 16 | + |
| 17 | +- `file`: Dockerfile containing build instructions (default: `Dockerfile`) |
| 18 | +- `tag`: Tag to add to the built image |
| 19 | +- `base`: Base docker image to build on top of |
| 20 | +- `args`: Arguments to pass to `docker build` |
| 21 | + |
| 22 | +Outputs: |
| 23 | + |
| 24 | +- `unique`: Unique identifier for the CI run (ie: `${{ steps.build.outputs.unique }}`) |
| 25 | + |
| 26 | +Example: |
| 27 | + |
| 28 | +```yaml |
| 29 | +jobs: |
| 30 | + test: |
| 31 | + steps: |
| 32 | + - id: build |
| 33 | + name: Build docker image for Devito |
| 34 | + uses: ./.github/actions/docker-build |
| 35 | + with: |
| 36 | + file: docker/Dockerfile.devito |
| 37 | + tag: tag-related-to-test-config |
| 38 | + base: base-image-to-build-from |
| 39 | + args: "--more-docker-build-args" |
| 40 | +``` |
| 41 | + |
| 42 | +## `docker-run` |
| 43 | + |
| 44 | +Inputs: |
| 45 | + |
| 46 | +- `uid`: Unique identifier output from docker-build action |
| 47 | +- `tag`: Tag of the built image to use |
| 48 | +- `name`: Name substring for docker to use when running the command (optional) |
| 49 | +- `args`: Arguments to pass to `docker run`, `--init -t --rm` are always added |
| 50 | +- `env`: Environment variables to set inside the docker container, one environment variable per line |
| 51 | +-command: Command to execute inside of the docker container |
| 52 | + |
| 53 | +### Notes |
| 54 | + |
| 55 | +- The UID must be unique, easily obtained from build action |
| 56 | +- The tag must match built image, easily obtained from build action |
| 57 | +- If you provide a custom name `foo` the container name will be `ci-foo-UUUUUUUUUU` where UUUUUUUUUU is the UID |
| 58 | +- The default args `--init -t --rm` are _always_ added |
| 59 | +- Environment variables must be passed a single environment variable per line, best achieved with the (`|`) syntax in yaml |
| 60 | +- Only a single command is executed, not a list of commands. Using `;` or `&&` will result in subsequent commands being executed outside of the docker environment |
| 61 | + |
| 62 | +Example: |
| 63 | + |
| 64 | +```yaml |
| 65 | +jobs: |
| 66 | + test: |
| 67 | + steps: |
| 68 | + - name: Run a command in a previously built Docker container |
| 69 | + uses: ./.github/actions/docker-run |
| 70 | + with: |
| 71 | + uid: ${{ steps.build.outputs.unique }} |
| 72 | + tag: tag-related-to-test-config |
| 73 | + name: completely-optional-name |
| 74 | + args: "--more-docker-run-args" |
| 75 | + env: | |
| 76 | + FOO=value1 |
| 77 | + BAR=value2 |
| 78 | + command: | |
| 79 | + mpiexec -n 4 \ |
| 80 | + python \ |
| 81 | + my_complicated_script.py --arg1 -v |
| 82 | +``` |
| 83 | + |
| 84 | +## `docker-clean` |
| 85 | + |
| 86 | +Inputs: |
| 87 | + |
| 88 | +- `uid`: Unique identifier output from docker-build action |
| 89 | +- `tag`: Tag of the built image to use |
| 90 | + |
| 91 | +### Notes |
| 92 | + |
| 93 | +- UID must be unique, easily obtained from build action |
| 94 | +- Tag must match built image, easily obtained from build action |
| 95 | +- Use `if: always()` to always clean up the image, even if the workflow fails |
| 96 | + |
| 97 | +Example: |
| 98 | + |
| 99 | +```yaml |
| 100 | +jobs: |
| 101 | + test: |
| 102 | + steps: |
| 103 | + - name: Cleanup Docker image |
| 104 | + if: always() |
| 105 | + uses: ./.github/actions/docker-clean |
| 106 | + with: |
| 107 | + uid: ${{ steps.build.outputs.unique }} |
| 108 | + tag: tag-related-to-test-config |
| 109 | +``` |
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