Add support for arm64 in docker image

[npmSteven]

Summary by CodeRabbit

• Chores
  • Enhanced Docker image build pipeline to support multiple architectures (AMD64 and ARM64).
  • Improved image release process using manifest-based distribution for better cross-platform compatibility.

[github-actions]

@codex review

[coderabbitai]

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch docker-build-arm-support

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In @.github/workflows/docker-publish.yml:
- Around line 58-64: The workflow fails because GitHub Actions expressions don't
have replace(), so change the artifact name usage in the Upload digest step (the
actions/upload-artifact@v4 step where name: digests-${{ replace(matrix.platform,
'/', '-') }}) — either add a small prior step that computes a sanitized platform
variable via shell (e.g., export PLATFORM_NAME="${{ matrix.platform }}" with
parameter substitution to replace "/" with "-" and then reference that env var
in the upload step), or add a platform_name field to the matrix (e.g.,
matrix.include entries) and change the upload step to use ${{
matrix.platform_name }}; update only the Upload digest step and the new matrix
or compute step references accordingly.

[coderabbitai]

⚠️ Potential issue | 🔴 Critical

replace() function doesn't exist in GitHub Actions expressions — workflow will fail.

GitHub Actions expressions don't support a replace() function. The available functions are: always, cancelled, contains, endsWith, failure, format, fromJSON, hashFiles, join, startsWith, success, toJSON.

🐛 Proposed fix using shell variable substitution

Add a step to compute the sanitized platform name, then reference it in the upload step:

      - name: Export digest
        run: |
          mkdir -p /tmp/digests
          digest="${{ steps.build.outputs.digest }}"
          touch "/tmp/digests/${digest#sha256:}"
+
+      - name: Prepare platform name
+        id: platform
+        run: |
+          platform="${{ matrix.platform }}"
+          echo "name=${platform//\//-}" >> "$GITHUB_OUTPUT"

      - name: Upload digest
        uses: actions/upload-artifact@v4
        with:
-          name: digests-${{ replace(matrix.platform, '/', '-') }}
+          name: digests-${{ steps.platform.outputs.name }}
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1

Alternatively, since you only have two platforms, you could add platform_name to the matrix:

matrix:
  include:
    - os: ubuntu-latest
      platform: linux/amd64
      platform_name: linux-amd64
    - os: ubuntu-24.04-arm
      platform: linux/arm64
      platform_name: linux-arm64

Then use ${{ matrix.platform_name }} in the artifact name.

🧰 Tools

🪛 actionlint (1.7.11)

[error] 61-61: undefined function "replace". available functions are "always", "cancelled", "case", "contains", "endswith", "failure", "format", "fromjson", "hashfiles", "join", "startswith", "success", "tojson"

(expression)

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In @.github/workflows/docker-publish.yml around lines 58 - 64, The workflow
fails because GitHub Actions expressions don't have replace(), so change the
artifact name usage in the Upload digest step (the actions/upload-artifact@v4
step where name: digests-${{ replace(matrix.platform, '/', '-') }}) — either add
a small prior step that computes a sanitized platform variable via shell (e.g.,
export PLATFORM_NAME="${{ matrix.platform }}" with parameter substitution to
replace "/" with "-" and then reference that env var in the upload step), or add
a platform_name field to the matrix (e.g., matrix.include entries) and change
the upload step to use ${{ matrix.platform_name }}; update only the Upload
digest step and the new matrix or compute step references accordingly.