matrix subaction

.github/workflows/ci-subaction.yml

@@ -25,8 +25,28 @@ on:
       - 'test/**'
 
 jobs:
-  list-targets-group:
+  list-targets:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          -
+            testdir: group
+            expected: >
+              ["t1","t2"]
+          -
+            testdir: group-matrix
+            target: validate
+            expected: >
+              ["lint-default","lint-labs","lint-nydus","lint-proto","lint-yaml","validate-doctoc","validate-vendor"]
+          -
+            testdir: multi-files
+            files: |
+              docker-bake.json
+              docker-bake.hcl
+            expected: >
+              ["v1-tag","v2-tag"]
     steps:
       -
         name: Checkout
@@ -36,64 +56,81 @@ jobs:
         id: gen
         uses: ./subaction/list-targets
         with:
-          workdir: ./test/group
+          workdir: ./test/${{ matrix.testdir }}
+          files: ${{ matrix.files }}
+          target: ${{ matrix.target }}
       -
-        name: Check targets
+        name: Check output
         uses: actions/github-script@v7
+        env:
+          INPUT_TARGETS: ${{ steps.gen.outputs.targets }}
+          INPUT_EXPECTED: ${{ matrix.expected }}
         with:
           script: |
-            const targets = `${{ steps.gen.outputs.targets }}`;
-            if (!targets) {
-              core.setFailed('No targets generated');
+            const targets = JSON.stringify(JSON.parse(core.getInput('targets')));
+            const expected = JSON.stringify(JSON.parse(core.getInput('expected')));
+            if (targets !== expected) {
+              throw new Error(`Targets do not match expected values: ${targets} != ${expected}`);
+            } else {
+              core.info(`✅`);
             }
-            core.info(`targets=${targets}`);
 
-  list-targets-group-matrix:
+  matrix:
     runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          -
+            testdir: group
+            expected: >
+              [{"target":"t1"},{"target":"t2"}]
+          -
+            testdir: group-matrix
+            target: validate
+            expected: >
+              [{"target":"lint-default"},{"target":"lint-labs"},{"target":"lint-nydus"},{"target":"lint-proto"},{"target":"lint-yaml"},{"target":"validate-doctoc"},{"target":"validate-vendor"}]
+          -
+            testdir: group-with-platform
+            target: validate
+            expected: >
+              [{"target":"lint"},{"target":"lint-gopls"},{"target":"validate-docs"},{"target":"validate-vendor"}]
+          -
+            testdir: group-with-platform
+            target: validate
+            fields: platforms
+            expected: >
+              [{"target":"lint","platforms":"darwin/amd64"},{"target":"lint","platforms":"darwin/arm64"},{"target":"lint","platforms":"linux/amd64"},{"target":"lint","platforms":"linux/arm64"},{"target":"lint","platforms":"linux/s390x"},{"target":"lint","platforms":"linux/ppc64le"},{"target":"lint","platforms":"linux/riscv64"},{"target":"lint","platforms":"windows/amd64"},{"target":"lint","platforms":"windows/arm64"},{"target":"lint-gopls","platforms":"darwin/amd64"},{"target":"lint-gopls","platforms":"darwin/arm64"},{"target":"lint-gopls","platforms":"linux/amd64"},{"target":"lint-gopls","platforms":"linux/arm64"},{"target":"lint-gopls","platforms":"linux/s390x"},{"target":"lint-gopls","platforms":"linux/ppc64le"},{"target":"lint-gopls","platforms":"linux/riscv64"},{"target":"lint-gopls","platforms":"windows/amd64"},{"target":"lint-gopls","platforms":"windows/arm64"},{"target":"validate-docs"},{"target":"validate-vendor"}]
+          -
+            testdir: group-with-platform
+            target: validate
+            fields: platforms,dockerfile
+            expected: >
+               [{"target":"lint","dockerfile":"./hack/dockerfiles/lint.Dockerfile"},{"target":"lint","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"darwin/amd64"},{"target":"lint","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"darwin/arm64"},{"target":"lint","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"linux/amd64"},{"target":"lint","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"linux/arm64"},{"target":"lint","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"linux/s390x"},{"target":"lint","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"linux/ppc64le"},{"target":"lint","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"linux/riscv64"},{"target":"lint","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"windows/amd64"},{"target":"lint","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"windows/arm64"},{"target":"lint-gopls","dockerfile":"./hack/dockerfiles/lint.Dockerfile"},{"target":"lint-gopls","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"darwin/amd64"},{"target":"lint-gopls","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"darwin/arm64"},{"target":"lint-gopls","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"linux/amd64"},{"target":"lint-gopls","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"linux/arm64"},{"target":"lint-gopls","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"linux/s390x"},{"target":"lint-gopls","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"linux/ppc64le"},{"target":"lint-gopls","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"linux/riscv64"},{"target":"lint-gopls","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"windows/amd64"},{"target":"lint-gopls","dockerfile":"./hack/dockerfiles/lint.Dockerfile","platforms":"windows/arm64"},{"target":"validate-docs","dockerfile":"./hack/dockerfiles/docs.Dockerfile"},{"target":"validate-vendor","dockerfile":"./hack/dockerfiles/vendor.Dockerfile"}]
     steps:
       -
         name: Checkout
         uses: actions/checkout@v5
       -
         name: Matrix gen
         id: gen
-        uses: ./subaction/list-targets
-        with:
-          workdir: ./test/group-matrix
-          target: validate
-      -
-        name: Check targets
-        uses: actions/github-script@v7
-        with:
-          script: |
-            const targets = `${{ steps.gen.outputs.targets }}`;
-            if (!targets) {
-              core.setFailed('No targets generated');
-            }
-            core.info(`targets=${targets}`);
-
-  list-targets-multi-files:
-    runs-on: ubuntu-latest
-    steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v5
-      -
-        name: Matrix gen
-        id: gen
-        uses: ./subaction/list-targets
+        uses: ./subaction/matrix
         with:
-          workdir: ./test/multi-files
-          files: |
-            docker-bake.json
-            docker-bake.hcl
+          workdir: ./test/${{ matrix.testdir }}
+          target: ${{ matrix.target }}
+          fields: ${{ matrix.fields }}
       -
-        name: Check targets
+        name: Check output
         uses: actions/github-script@v7
+        env:
+          INPUT_MATRIX: ${{ steps.gen.outputs.matrix }}
+          INPUT_EXPECTED: ${{ matrix.expected }}
         with:
           script: |
-            const targets = `${{ steps.gen.outputs.targets }}`;
-            if (!targets) {
-              core.setFailed('No targets generated');
+            const matrix = JSON.stringify(JSON.parse(core.getInput('matrix')));
+            const expected = JSON.stringify(JSON.parse(core.getInput('expected')));
+            if (matrix !== expected) {
+              throw new Error(`Matrix do not match expected values: ${matrix} != ${expected}`);
+            } else {
+              core.info(`✅`);
             }
-            core.info(`targets=${targets}`);

README.md

@@ -22,7 +22,7 @@ ___
   * [outputs](#outputs)
   * [environment variables](#environment-variables)
 * [Subactions](#subactions)
-  * [`list-targets`](subaction/list-targets)
+  * [`matrix`](subaction/matrix)
 * [Contributing](#contributing)
 
 ## Usage
@@ -234,7 +234,7 @@ The following outputs are available
 
 ## Subactions
 
-* [`list-targets`](subaction/list-targets)
+* [`matrix`](subaction/matrix)
 
 ## Contributing
 

subaction/list-targets/README.md

@@ -1,9 +1,14 @@
+> [!WARNING]
+> `docker/bake-action/subaction/list-targets` is deprecated and will be removed
+> in a future release. Please use [`docker/bake-action/subaction/matrix`](../matrix)
+> instead.
+
 ## About
 
 This subaction generates a list of Bake targets that can be used in a [GitHub matrix](https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstrategymatrix),
 so you can distribute your builds across multiple runners.
 
-![Screenshot](../../.github/bake-action.png)
+![Screenshot](../../.github/subaction-list-targets.png)
 
 ___
 
@@ -55,9 +60,6 @@ jobs:
       matrix:
         target: ${{ fromJson(needs.prepare.outputs.targets) }}
     steps:
-      -
-        name: Checkout
-        uses: actions/checkout@v4
       -
         name: Validate
         uses: docker/bake-action@v6
@@ -79,6 +81,6 @@ jobs:
 
 The following outputs are available
 
-| Name       | Type     | Description                |
-|------------|----------|----------------------------|
-| `targets`  | List/CSV | List of extracted targest  |
+| Name       | Type     | Description               |
+|------------|----------|---------------------------|
+| `targets`  | List/CSV | List of extracted targets |

subaction/list-targets/action.yml

@@ -22,18 +22,6 @@ outputs:
 runs:
   using: composite
   steps:
-    -
-      name: Install npm dependencies
-      uses: actions/github-script@v7
-      env:
-        INPUT_ACTIONS-TOOLKIT-VERSION: '0.62.1'
-      with:
-        script: |
-          const version = core.getInput('actions-toolkit-version') || 'latest';
-          const dep = `@docker/actions-toolkit@${version}`;
-          await core.group(`Installing ${dep}`, async () => {
-            await exec.exec('npm', ['install', dep]);
-          });
     -
       name: Generate
       id: generate
@@ -44,10 +32,14 @@ runs:
         INPUT_TARGET: ${{ inputs.target }}
       with:
         script: |
-          const { Util } = require('@docker/actions-toolkit/lib/util');
+          core.warning(`docker/bake-action/subaction/list-targets is deprecated and will be removed in a future release. Please use docker/bake-action/subaction/matrix instead.`);
+
+          function getInputList(name) {
+            return core.getInput(name) ? core.getInput(name).split(/[\r?\n,]+/).filter(x => x !== '') : [];
+          }
 
           const workdir = core.getInput('workdir');
-          const files = Util.getInputList('files');
+          const files = getInputList('files');
           const target = core.getInput('target');
 
           let def = {};

subaction/matrix/README.md

@@ -0,0 +1,140 @@
+## About
+
+This subaction generates a multi-dimension matrix that can be used in a [GitHub matrix](https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstrategymatrix)
+through the [`include` property](https://docs.github.com/en/actions/how-tos/writing-workflows/choosing-what-your-workflow-does/running-variations-of-jobs-in-a-workflow#expanding-or-adding-matrix-configurations)
+so you can distribute your builds across multiple runners.
+
+![Screenshot](../../.github/subaction-matrix.png)
+
+___
+
+* [Usage](#usage)
+* [Customizing](#customizing)
+  * [inputs](#inputs)
+  * [outputs](#outputs)
+
+## Usage
+
+### List targets
+
+```hcl
+# docker-bake.hcl
+group "validate" {
+  targets = ["lint", "doctoc"]
+}
+
+target "lint" {
+  target = "lint"
+}
+
+target "doctoc" {
+  target = "doctoc"
+}
+```
+
+```yaml
+jobs:
+  prepare:
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.generate.outputs.matrix }}
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Generate matrix
+        id: generate
+        uses: docker/bake-action/subaction/matrix@v6
+        with:
+          target: validate
+
+  validate:
+    runs-on: ubuntu-latest
+    needs:
+      - prepare
+    strategy:
+      fail-fast: false
+      matrix:
+        include: ${{ fromJson(needs.prepare.outputs.matrix) }}
+    steps:
+      -
+        name: Validate
+        uses: docker/bake-action@v6
+        with:
+          targets: ${{ matrix.target }}
+```
+
+### Platforms split
+
+```hcl
+# docker-bake.hcl
+target "lint" {
+  dockerfile = "./hack/dockerfiles/lint.Dockerfile"
+  output = ["type=cacheonly"]
+  platforms = [
+    "darwin/amd64",
+    "darwin/arm64",
+    "linux/amd64",
+    "linux/arm64",
+    "linux/s390x",
+    "linux/ppc64le",
+    "linux/riscv64",
+    "windows/amd64",
+    "windows/arm64"
+  ]
+}
+```
+
+```yaml
+jobs:
+  prepare:
+    runs-on: ubuntu-latest
+    outputs:
+      matrix: ${{ steps.generate.outputs.matrix }}
+    steps:
+      -
+        name: Checkout
+        uses: actions/checkout@v4
+      -
+        name: Generate matrix
+        id: generate
+        uses: docker/bake-action/subaction/matrix@v6
+        with:
+          target: lint
+          fields: platforms
+
+  lint:
+    runs-on: ${{ startsWith(matrix.platforms, 'linux/arm') && 'ubuntu-24.04-arm' || 'ubuntu-latest' }}
+    needs:
+      - prepare
+    strategy:
+      fail-fast: false
+      matrix:
+        include: ${{ fromJson(needs.prepare.outputs.matrix) }}
+    steps:
+      -
+        name: Lint
+        uses: docker/bake-action@v6
+        with:
+          targets: ${{ matrix.target }}
+          set: |
+            *.platform=${{ matrix.platforms }}
+```
+
+## Customizing
+
+### inputs
+
+| Name      | Type     | Description                                                                                    |
+|-----------|----------|------------------------------------------------------------------------------------------------|
+| `workdir` | String   | Working directory to use (defaults to `.`)                                                     |
+| `files`   | List/CSV | List of [bake definition files](https://docs.docker.com/build/customize/bake/file-definition/) |
+| `target`  | String   | The target to use within the bake file                                                         |
+| `fields`  | String   | List of extra fields to include in the matrix                                                  |
+
+### outputs
+
+| Name     | Type | Description          |
+|----------|------|----------------------|
+| `matrix` | JSON | Matrix configuration |