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108 lines
2.9 KiB
Markdown
108 lines
2.9 KiB
Markdown
# Cache
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* [Registry cache](#registry-cache)
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* [GitHub cache](#github-cache)
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> More info about buildx cache: https://github.com/docker/buildx/blob/master/docs/reference/buildx_build.md#cache-from
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## Registry cache
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You can import/export cache from a cache manifest or (special) image configuration on the registry.
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```yaml
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name: ci
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on:
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push:
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branches:
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- 'master'
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jobs:
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docker:
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runs-on: ubuntu-latest
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steps:
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-
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name: Checkout
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uses: actions/checkout@v2
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-
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name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v1
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-
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name: Login to DockerHub
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uses: docker/login-action@v1
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with:
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username: ${{ secrets.DOCKERHUB_USERNAME }}
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password: ${{ secrets.DOCKERHUB_TOKEN }}
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-
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name: Build and push
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uses: docker/build-push-action@v2
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with:
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context: .
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push: true
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tags: user/app:latest
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cache-from: type=registry,ref=user/app:latest
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cache-to: type=inline
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```
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## GitHub cache
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> :warning: At the moment caches are copied over the existing cache so it [keeps growing](https://github.com/docker/build-push-action/issues/252).
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> The `Move cache` step is used as a temporary fix (see https://github.com/moby/buildkit/issues/1896).
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> :rocket: There is a new cache backend using GitHub cache being developed that will lighten your workflow.
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> More info: https://github.com/docker/buildx/pull/535
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You can leverage [GitHub cache](https://docs.github.com/en/actions/configuring-and-managing-workflows/caching-dependencies-to-speed-up-workflows)
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using [actions/cache](https://github.com/actions/cache) with this action:
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```yaml
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name: ci
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on:
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push:
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branches:
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- 'master'
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jobs:
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docker:
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runs-on: ubuntu-latest
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steps:
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-
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name: Checkout
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uses: actions/checkout@v2
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-
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name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v1
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-
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name: Cache Docker layers
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uses: actions/cache@v2
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with:
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path: /tmp/.buildx-cache
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key: ${{ runner.os }}-buildx-${{ github.sha }}
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restore-keys: |
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${{ runner.os }}-buildx-
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-
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name: Login to DockerHub
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uses: docker/login-action@v1
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with:
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username: ${{ secrets.DOCKERHUB_USERNAME }}
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password: ${{ secrets.DOCKERHUB_TOKEN }}
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-
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name: Build and push
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uses: docker/build-push-action@v2
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with:
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context: .
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push: true
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tags: user/app:latest
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cache-from: type=local,src=/tmp/.buildx-cache
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cache-to: type=local,dest=/tmp/.buildx-cache-new
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-
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# Temp fix
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# https://github.com/docker/build-push-action/issues/252
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# https://github.com/moby/buildkit/issues/1896
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name: Move cache
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run: |
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rm -rf /tmp/.buildx-cache
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mv /tmp/.buildx-cache-new /tmp/.buildx-cache
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```
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