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49 lines
1.4 KiB
Markdown
49 lines
1.4 KiB
Markdown
# CI/CD
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## GitHub Actions
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Docker provides a [GitHub Action that will build and push your image](https://github.com/docker/build-push-action/#about)
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using Buildx. Here is a simple workflow:
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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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- 'main'
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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: Set up QEMU
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uses: docker/setup-qemu-action@v1
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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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push: true
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tags: user/app:latest
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```
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In this example we are also using 3 other actions:
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* [`setup-buildx`](https://github.com/docker/setup-buildx-action) action will create and boot a builder using by
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default the `docker-container` [builder driver](../reference/buildx_create.md#driver).
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This is **not required but recommended** using it to be able to build multi-platform images, export cache, etc.
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* [`setup-qemu`](https://github.com/docker/setup-qemu-action) action can be useful if you want
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to add emulation support with QEMU to be able to build against more platforms.
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* [`login`](https://github.com/docker/login-action) action will take care to log
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in against a Docker registry.
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