unified docker workflow

Author: leshy

.github/workflows/docker-base-ros-python.yml

@@ -0,0 +1,76 @@
+name: docker-tree
+on:
+  push:
+    branches: [ env/devcontainer2 ]
+
+jobs:
+  detect-changes:            # single job that figures out WHAT changed
+    runs-on: dimos-runner-ubuntu-2204
+    outputs:
+      ros:    ${{ steps.filter.outputs.ros }}
+      python: ${{ steps.filter.outputs.python }}
+    steps:
+      - uses: actions/checkout@v4
+      - id: filter
+        uses: dorny/paths-filter@v3
+        with:
+          filters: |
+            ros:    docker/base-ros/**
+            python: docker/base-python/**
+
+  build-ros:
+    needs: detect-changes
+    if: needs.detect-changes.outputs.ros == 'true'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          context: .
+          file: docker/base-ros/Dockerfile
+          tags: ghcr.io/dimensionalos/base-ros:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+
+
+  build-python:
+    needs: [detect-changes, build-ros]
+    if: |
+      needs.detect-changes.outputs.python == 'true' ||
+      needs.build-ros.result == 'success'
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Build and push
+        uses: docker/build-push-action@v6
+        with:
+          push: true
+          context: .
+          file: docker/base-ros-python/Dockerfile
+          tags: ghcr.io/dimensionalos/base-ros-python:latest
+          cache-from: type=gha
+          cache-to: type=gha,mode=max