workflows: convert to callable builder/binaries/podvm

The podvm_builder, podvm_binaries, and podvm workflows were converted to
`workflow_call` so that they can be re-used.

Before, on release time, `podvm_builder` were first triggered on a `release` event
then the others followed upon finish of the previous. With this change,
the `podvm_publish` workflow was created to be the entry point for
the `release` event (or manual dispatch), so the (now) callable `podvm_builder`,
`podvm_binaries`, and `podvm` are directly called.

Signed-off-by: Wainer dos Santos Moschetta <[email protected]>

.github/workflows/podvm.yaml

@@ -1,14 +1,10 @@
 name: Create Pod VM Image
 on:
-  workflow_run:
-    workflows: ["Create Pod VM Binaries Image"]
-    types:
-      - completed
+  workflow_call:
 
 jobs:
   build:
     name: Create pod vm image
-    if: ${{ github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success' }}
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false

.github/workflows/podvm_binaries.yaml

@@ -1,14 +1,10 @@
 name: Create Pod VM Binaries Image
 on:
-  workflow_run:
-    workflows: ["Create Pod VM Builder Image"]
-    types:
-      - completed
+  workflow_call:
 
 jobs:
   build:
     name: Create pod vm binaries image
-    if: ${{ github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success' }}
     runs-on: ubuntu-latest
     strategy:
       fail-fast: false

.github/workflows/podvm_builder.yaml

@@ -1,7 +1,6 @@
 name: Create Pod VM Builder Image
 on:
-  release:
-    types: [created]
+  workflow_call:
 
 jobs:
   build:

.github/workflows/podvm_publish.yaml

@@ -0,0 +1,27 @@
+# Copyright Confidential Containers Contributors
+# SPDX-License-Identifier: Apache-2.0
+#
+# Build and push the pod VM images.
+---
+name: Publish pod VM Images
+on:
+  # Create release Pod VM Images
+  release:
+    types: [created]
+
+  workflow_dispatch:
+
+jobs:
+  podvm_builder:
+    uses: ./.github/workflows/podvm_builder.yaml
+    secrets: inherit
+
+  podvm_binaries:
+    needs: [podvm_builder]
+    uses: ./.github/workflows/podvm_binaries.yaml
+    secrets: inherit
+
+  podvm:
+    needs: [podvm_binaries]
+    uses: ./.github/workflows/podvm.yaml
+    secrets: inherit