- Using separate workflows for each build to work around the nested v…

…irtualisation issue

.github/workflows/publish-amd64.yml

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+name: docker publish amd64
+on:
+  push:
+    tags:
+      - '*'
+jobs:
+  build-amd64:
+    runs-on: ubuntu-latest
+    timeout-minutes: 360
+    steps:
+      - name: checkout code
+        uses: actions/checkout@v4
+      - name: setup qemu
+        uses: docker/setup-qemu-action@v3
+      - name: setup buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+      - name: print available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
+      - name: set version from tag
+        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+      - name: print version number
+        run: echo ${{ env.RELEASE_VERSION }}
+      - name: login to dockerhub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_UPLOAD_USERNAME }}
+          password: ${{ secrets.DOCKER_UPLOAD_TOKEN }}
+      - name: build & upload
+        run: |
+          docker buildx build \
+          --push \
+          --tag plattar/python-usd:version-${{ env.RELEASE_VERSION }}-amd64 \
+          --platform linux/amd64 \
+          --file Dockerfile .

.github/workflows/publish-arm64.yml

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+name: docker publish arm64
+on:
+  push:
+    tags:
+      - '*'
+jobs:
+  build-arm64:
+    runs-on: macos-14
+    timeout-minutes: 360
+    steps:
+      - name: checkout code
+        uses: actions/checkout@v4
+      - name: setup docker on macOS
+        uses: douglascamata/setup-docker-macos-action@v1-alpha
+      - name: setup qemu
+        uses: docker/setup-qemu-action@v3
+      - name: setup buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
+      - name: print available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
+      - name: set version from tag
+        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+      - name: print version number
+        run: echo ${{ env.RELEASE_VERSION }}
+      - name: login to dockerhub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_UPLOAD_USERNAME }}
+          password: ${{ secrets.DOCKER_UPLOAD_TOKEN }}
+      - name: build & upload
+        run: |
+          docker buildx build \
+          --push \
+          --tag plattar/python-usd:version-${{ env.RELEASE_VERSION }}-arm64 \
+          --platform linux/arm64 \
+          --file Dockerfile .

.github/workflows/publish-manifest.yml

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+name: docker publish manifest
+on:
+  workflow_run:
+    workflows: ["docker publish amd64", "docker publish arm64"]
+    types:
+      - completed
+jobs:
+  build-manifest:
+    runs-on: ubuntu-latest
+    timeout-minutes: 360
+    steps:
+      - name: checkout code
+        uses: actions/checkout@v4
+      - name: set version from tag
+        run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
+      - name: print version number
+        run: echo ${{ env.RELEASE_VERSION }}
+      - name: login to dockerhub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_UPLOAD_USERNAME }}
+          password: ${{ secrets.DOCKER_UPLOAD_TOKEN }}
+      - name: create manifest
+        run: docker manifest create plattar/python-usd:version-${{ env.RELEASE_VERSION }} plattar/python-usd:version-${{ env.RELEASE_VERSION }}-amd64 plattar/python-usd:version-${{ env.RELEASE_VERSION }}-arm64
+      - name: upload manifest
+        run: docker manifest push plattar/python-usd:version-${{ env.RELEASE_VERSION }}