ci: Add basic tests for built kas and kas-isar containers

Break up the build into two stages, performing basic tests with poky and
isar on the two kas container types before uploading them. The tests
consist of building zlib-native with poky and cowsay for x86 bullseye
with Isar.

Note that the ordering "build kas", "test kas", "push kas",
"build kas-isar" is important because "build kas-isar" will not use the
locally built and imported kas:next image and rather pull the previous
one from the registry.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>

.github/workflows/next.yml

@@ -61,8 +61,8 @@ jobs:
           scripts/checkcode.sh .
           TERM=xterm pytest
 
-  deploy_containers:
-    name: Build and deploy container images
+  build_containers:
+    name: Build, test and deploy container images
     needs: perform_tests
     runs-on: ubuntu-latest
     steps:
@@ -81,14 +81,34 @@ jobs:
       - name: Build kas image
         uses: docker/build-push-action@v2
         with:
-          platforms: linux/amd64,linux/arm64
-          push: true
+          load: true
           tags: ghcr.io/siemens/kas/kas:next
+      - name: Test kas image
+        run: |
+          cd image-tests/poky
+          KAS_IMAGE_VERSION=next ../../kas-container build kas.yml
+      - name: Complete build and deploy kas image
+        uses: docker/build-push-action@v2
+        with:
+          platforms: linux/amd64,linux/arm64
+          tags: ghcr.io/siemens/kas/kas:next
+          push: true
       - name: Build kas-isar image
+        uses: docker/build-push-action@v2
+        with:
+          file: Dockerfile.isar
+          load: true
+          build-args: KAS_TAG=next
+          tags: ghcr.io/siemens/kas/kas-isar:next
+      - name: Test kas-isar image
+        run: |
+          cd image-tests/isar
+          KAS_IMAGE_VERSION=next ../../kas-container build kas.yml
+      - name: Complete build and deploy kas-isar image
         uses: docker/build-push-action@v2
         with:
           file: Dockerfile.isar
           platforms: linux/amd64,linux/arm64
           build-args: KAS_TAG=next
-          push: true
           tags: ghcr.io/siemens/kas/kas-isar:next
+          push: true

image-tests/isar/kas.yml

@@ -0,0 +1,41 @@
+#
+# kas - setup tool for bitbake based projects
+#
+# Copyright (c) Siemens AG, 2022
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+
+header:
+  version: 11
+
+build_system: isar
+
+machine: qemuamd64
+distro: debian-bullseye
+
+target: mc:qemuamd64-bullseye:cowsay
+
+repos:
+  isar:
+    url: https://github.com/ilbers/isar.git
+    refspec: 74036ebaab5265d62cdf90f563acd5b4d3b8b6d2
+    layers:
+      meta:
+      meta-isar:

image-tests/poky/kas.yml

@@ -0,0 +1,36 @@
+#
+# kas - setup tool for bitbake based projects
+#
+# Copyright (c) Siemens AG, 2022
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to deal
+# in the Software without restriction, including without limitation the rights
+# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+# copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be
+# included in all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# SOFTWARE.
+#
+
+header:
+  version: 11
+
+target: zlib-native
+
+repos:
+  poky:
+    url: https://git.yoctoproject.org/poky.git
+    refspec: b53230c08d9f02ecaf35b4f0b70512abbf10ae11
+    layers:
+      meta:
+      meta-poky: