Arm64 support for KOTS images (#4394)

* Arm64 support for KOTS images

.github/actions/build-custom-image-with-apko/action.yml

@@ -0,0 +1,57 @@
+name: 'Build and push a custom image with apko'
+description: 'Composite action for building and pushing a custom image with apko'
+inputs:
+  context:
+    description: 'Path to the context directory'
+    required: true
+
+  component:
+    description: 'Name of the component (e.g. kotsadm, kurl-proxy, etc...)'
+    required: true
+
+  git-tag:
+    description: 'Git tag'
+    required: true
+
+  image-name:
+    description: 'Full destination image name'
+    required: true
+
+  registry-username:
+    description: 'Username to login to registry'
+    default: ''
+    required: false
+
+  registry-password:
+    description: 'Password to login to registry'
+    default: ''
+    required: false
+
+runs:
+  using: "composite"
+  steps:
+    - uses: actions/download-artifact@v4
+      with:
+        pattern: ${{ inputs.component }}-melange-packages-*
+        path: ./packages/
+        merge-multiple: true
+
+    - uses: actions/download-artifact@v4
+      with:
+        pattern: ${{ inputs.component }}-melange-rsa-pub-*
+        merge-multiple: true
+
+    - name: template apko config
+      shell: bash
+      run: |
+        export GIT_TAG=${{ inputs.git-tag }}
+        envsubst '${GIT_TAG}' < ${{ inputs.context }}/apko.yaml.tmpl > ${{ inputs.context }}/apko.yaml
+
+    - uses: chainguard-images/actions/apko-publish@main
+      with:
+        config: ${{ inputs.context }}/apko.yaml
+        archs: amd64,arm64
+        tag: ${{ inputs.image-name }}
+        vcs-url: true
+        generic-user: ${{ inputs.registry-username }}
+        generic-pass: ${{ inputs.registry-password }}

.github/actions/build-custom-melange-package/action.yml

@@ -0,0 +1,75 @@
+name: 'Build a custom melange package'
+description: 'Composite action for building a custom melange package'
+inputs:
+  context:
+    description: 'Path to the context directory'
+    required: true
+
+  component:
+    description: 'Name of the component (e.g. kotsadm, kurl-proxy, etc...)'
+    required: true
+
+  git-tag:
+    description: 'Git tag'
+    required: true
+
+  arch:
+    description: 'Architecture to build for'
+    required: true
+
+runs:
+  using: "composite"
+  steps:
+    - name: configure packages for arm64
+      if: inputs.arch == 'arm64'
+      shell: bash
+      run: |
+        sudo apt-get update -y
+        sudo apt-get install -y curl jq gettext-base pkg-config
+
+    # download schemahero binary for kotsadm-migrations for the specified arch
+
+    - if: inputs.component == 'kotsadm-migrations'
+      uses: falti/dotenv-action@v1
+      id: dotenv
+      with:
+        path: .image.env
+
+    - if: inputs.component == 'kotsadm-migrations'
+      uses: imjasonh/setup-crane@v0.3
+
+    - if: inputs.component == 'kotsadm-migrations'
+      shell: bash
+      run: |
+        crane export schemahero/schemahero:${{ steps.dotenv.outputs.SCHEMAHERO_TAG }} --platform linux/${{ inputs.arch }} - | tar -Oxf - schemahero > migrations/schemahero
+        chmod +x migrations/schemahero
+
+    # build the melange package
+
+    - name: template melange config
+      shell: bash
+      run: |
+        export GIT_TAG=${{ inputs.git-tag }}
+        envsubst '${GIT_TAG}' < ${{ inputs.context }}/melange.yaml.tmpl > ${{ inputs.context }}/melange.yaml
+
+    - uses: chainguard-dev/actions/melange-build@main
+      with:
+        config: ${{ inputs.context }}/melange.yaml
+        archs: ${{ inputs.arch }}
+        sign-with-temporary-key: true
+
+    # upload artifacts generated by the melange build so they can later be used by apko
+
+    - name: rename melange.rsa.pub
+      shell: bash
+      run: mv melange.rsa.pub melange-${{ inputs.arch }}.rsa.pub
+
+    - uses: actions/upload-artifact@v4
+      with:
+        name: ${{ inputs.component }}-melange-packages-${{ inputs.arch }}
+        path: ./packages
+
+    - uses: actions/upload-artifact@v4
+      with:
+        name: ${{ inputs.component }}-melange-rsa-pub-${{ inputs.arch }}
+        path: ./melange-${{ inputs.arch }}.rsa.pub

.github/actions/build-push-image-with-apko/action.yml → .github/actions/build-dep-image-with-apko/action.yml

@@ -1,5 +1,5 @@
-name: 'Build and push images with apko'
-description: 'Composite action for building and pushing images with apko'
+name: 'Build and push a dep image with apko'
+description: 'Composite action for building and pushing a dep image with apko'
 inputs:
   apko-config:
     description: 'Path to apko config'
@@ -44,7 +44,7 @@ runs:
       if: ${{ inputs.overwrite == 'true' || steps.check-image-exists.outputs.image-exists == 'false' }}
       with:
         config: ${{ inputs.apko-config }}
-        archs: x86_64
+        archs: amd64,arm64
         tag: ${{ inputs.image-name }}
         vcs-url: true
         generic-user: ${{ inputs.registry-username }}

.github/actions/cmx-versions/action.yaml

@@ -8,10 +8,6 @@ inputs:
   replicated-api-token:
     description: 'Replicated API token for CMX'
     required: true
-  distros:
-    description: 'A comma-separated list of distros to test against. If not provided, all distros will be tested.'
-    required: false
-    default: ''
 
 outputs:
   versions-to-test: