Build Distro Image in CI

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This is the start of the Distro Image CI where the Distro Image is
built. This simply invokes the `fboss-image build` command against the
sample `from_source.json` image manifest.

The resulting artifacts are not preserved in this PR.

As part of this it is necessary to remove `-it` from the docker command
because GHA's don't have a stdin. Further the sample image manifest now
requires all components be present, so add them.

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Look at the new workflow in this PR.

Author: travisb-nexthop

.github/workflows/distro_image_build.yml

@@ -0,0 +1,27 @@
+name: Distro Image Build
+run-name: Distro Image Build
+
+on:
+  pull_request:
+  # Allow manually triggering the workflow
+  workflow_dispatch:
+  push:
+    branches: [ main ]
+
+jobs:
+  Distro-Image-Build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v5
+        with:
+          fetch-depth: 0
+
+      - name: Run fboss-image build
+        run: ./fboss-image/distro_cli/fboss-image build fboss-image/from_source.json
+
+      - name: Cleanup
+        if: always()
+        run: |
+          docker stop ${USER}-fboss-image-builder 2>/dev/null || true
+          docker rm ${USER}-fboss-image-builder 2>/dev/null || true

fboss-image/from_source.json

@@ -1,5 +1,19 @@
 {
   "distribution_formats": {
     "usb": "fboss-distro-image_usb.iso"
+  },
+  "kernel": {
+  },
+  "other_dependencies": [
+  ],
+  "fboss-platform-stack": {
+  },
+  "bsps": [
+  ],
+  "sai": {
+  },
+  "fboss-forwarding-stack": {
+  },
+  "image_build_hooks": {
   }
 }

fboss-image/image_builder/bin/build_image.sh

@@ -179,7 +179,7 @@ if [ "${ENTER_SHELL}" = "yes" ] ; then
 else
     if [ "${BUILD_FBOSS_IMAGES}" = "yes" ]; then
         dprint "Starting image build, launching in docker: /${IMAGE_BUILDER_DIR}/bin/build_image_in_container.sh ${CHILD_SCRIPT_ARGS[*]}"
-        docker run --rm -it "${DOCKER_ARGS}" "${DOCKER_IMAGE_NAME}" /"${IMAGE_BUILDER_DIR}"/bin/build_image_in_container.sh "${CHILD_SCRIPT_ARGS[@]}" >> "${LOG_FILE}" 2>&1
+        docker run --rm "${DOCKER_ARGS}" "${DOCKER_IMAGE_NAME}" /"${IMAGE_BUILDER_DIR}"/bin/build_image_in_container.sh "${CHILD_SCRIPT_ARGS[@]}" >> "${LOG_FILE}" 2>&1
         RC=$?
         handle_error "${RC}" "docker run /${IMAGE_BUILDER_DIR}/bin/build_image.sh ${CHILD_SCRIPT_ARGS[*]}"
     fi