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56 lines
4 KiB
Markdown
56 lines
4 KiB
Markdown
# Append additional nodes to the builder
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Buildx also supports running builds on multiple machines. This is useful for
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building [multi-platform images](https://docs.docker.com/build/building/multi-platform/)
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on native nodes for more complicated cases that are not handled by QEMU and
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generally have better performance or for distributing the build across multiple
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machines.
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You can append nodes to the builder that is going to be created with the
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`append` input in the form of a YAML string document to remove limitations
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intrinsically linked to GitHub Actions (only string format is handled in the
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input fields):
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| Name | Type | Description |
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|-------------------|--------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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| `name` | String | [Name of the node](https://docs.docker.com/engine/reference/commandline/buildx_create/#node). If empty, it is the name of the builder it belongs to, with an index number suffix. This is useful to set it if you want to modify/remove a node in an underlying step of you workflow. |
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| `endpoint` | String | [Docker context or endpoint](https://docs.docker.com/engine/reference/commandline/buildx_create/#description) of the node to add to the builder |
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| `driver-opts` | List | List of additional [driver-specific options](https://docs.docker.com/engine/reference/commandline/buildx_create/#driver-opt) |
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| `buildkitd-flags` | String | [Flags for buildkitd](https://docs.docker.com/engine/reference/commandline/buildx_create/#buildkitd-flags) daemon |
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| `platforms` | String | Fixed [platforms](https://docs.docker.com/engine/reference/commandline/buildx_create/#platform) for the node. If not empty, values take priority over the detected ones. |
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Here is an example using remote nodes with the [`remote` driver](https://docs.docker.com/build/building/drivers/remote/)
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and [TLS authentication](auth.md#tls-authentication):
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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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jobs:
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buildx:
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runs-on: ubuntu-latest
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steps:
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-
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name: Set up Docker Buildx
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uses: docker/setup-buildx-action@v2
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with:
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driver: remote
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endpoint: tcp://oneprovider:1234
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append: |
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- endpoint: tcp://graviton2:1234
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platforms: linux/arm64
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- endpoint: tcp://linuxone:1234
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platforms: linux/s390x
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env:
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BUILDER_NODE_0_AUTH_TLS_CACERT: ${{ secrets.ONEPROVIDER_CA }}
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BUILDER_NODE_0_AUTH_TLS_CERT: ${{ secrets.ONEPROVIDER_CERT }}
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BUILDER_NODE_0_AUTH_TLS_KEY: ${{ secrets.ONEPROVIDER_KEY }}
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BUILDER_NODE_1_AUTH_TLS_CACERT: ${{ secrets.GRAVITON2_CA }}
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BUILDER_NODE_1_AUTH_TLS_CERT: ${{ secrets.GRAVITON2_CERT }}
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BUILDER_NODE_1_AUTH_TLS_KEY: ${{ secrets.GRAVITON2_KEY }}
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BUILDER_NODE_2_AUTH_TLS_CACERT: ${{ secrets.LINUXONE_CA }}
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BUILDER_NODE_2_AUTH_TLS_CERT: ${{ secrets.LINUXONE_CERT }}
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BUILDER_NODE_2_AUTH_TLS_KEY: ${{ secrets.LINUXONE_KEY }}
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```
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