CI: Add include file containing all the CI steps for the foobar projects

Also add all yml files to the yamllint check and replaces the project
path check with a more general project-root check.

BCS 746-000646

.gitlab-ci.yml

@@ -50,7 +50,7 @@ yamllint:
   stage: analyze
   timeout: 2m
   script:
-    - yamllint -c .yamllint.yml .*.yml
+    - yamllint -c .yamllint.yml *.yml .*.yml
 
 
 # ---------------------------------------------------------------------------------------

foobar-manifest-integration.yml

+---
+# -------------------------------------------------------------------------------------
+# CI steps needed to integrate a sub project change into the manifest project
+# foobar variant which is used for testing the CI
+# -------------------------------------------------------------------------------------
+
+image: "${CI_IMAGES}/python/3.9:99e363bc5feaa27ff18dbe7731a76ff04d7d0deb"
+
+variables:
+  # CI_IMAGES_BASEPATH: Environment variable configure in gitlab
+  CI_IMAGES: ${CI_IMAGES_BASEPATH}/ci-images
+  # Include git submodules
+  GIT_SUBMODULE_STRATEGY: recursive
+  # FIXME: due to a missing feature in GitLab, we cannot use this variable in the build
+  # stage further down this file. If it ever changes, it has to be changed there too.
+  # (https://gitlab.com/gitlab-org/gitlab/-/issues/249583)
+  MANIFEST_PROJECT: "${CI_PROJECT_ROOT_NAMESPACE}/yocto/infrastructure/\
+                     ci-test/minimal-manifest"
+  # The master branch is hardcoded here, because it cannot be determined automatically.
+  # Has to be modified for new branches, e.g. new Yocto versions or fix releases.
+  MASTER_BRANCH: master
+
+stages:
+  - prepare
+  - integrate
+  - merge
+  - build
+  - check
+
+workflow:
+  rules:
+    # Do not run pipelines on forked projects
+    - if: $CI_PROJECT_ROOT_NAMESPACE == "SECO-Northern-Europe"
+        && $CI_MERGE_REQUEST_SOURCE_PROJECT_ID == $CI_MERGE_REQUEST_PROJECT_ID
+
+# ---------------------------------------------------------------------------------------
+# Stage: prepare
+# ---------------------------------------------------------------------------------------
+yamllint:
+  stage: prepare
+  rules:
+    - if: $CI_COMMIT_REF_NAME != $MASTER_BRANCH
+  tags:
+    - infrastructure
+  timeout: 2m
+  script:
+    - yamllint -c .gitlab-ci/.yamllint.yml .*.yml
+
+# ---------------------------------------------------------------------------------------
+# Stage: integrate
+# ---------------------------------------------------------------------------------------
+integrate:
+  stage: integrate
+  rules:
+    # We have to make sure that the pipeline runs for the current manifest master at
+    # the time a merge request is created. Otherwise we cannot guarantee a green
+    # master after merging.
+    - if: $CI_MERGE_REQUEST_IID
+  tags:
+    - infrastructure
+  timeout: 2m
+  cache:
+    policy: push
+  script:
+    - cd ${CI_PROJECT_DIR}
+    - .gitlab-ci/integrate_into_manifest.py
+        --gitlab-url=${CI_SERVER_URL}
+        --token=${GITBOT_TOKEN}
+        --manifest-project=${MANIFEST_PROJECT}
+        --integration-base=${MASTER_BRANCH}
+        --project=${CI_PROJECT_PATH}
+        --merge-request=${CI_MERGE_REQUEST_IID}
+        --save-revision-to=manifest_revision
+  artifacts:
+    paths:
+      - manifest_revision
+
+# --------------------------------------------------------------------------------------
+# Stage: merge
+# --------------------------------------------------------------------------------------
+merge:
+  stage: merge
+  rules:
+    - if: $CI_COMMIT_BRANCH == $MASTER_BRANCH
+  tags:
+    - infrastructure
+  timeout: 3m
+  script:
+    - cd ${CI_PROJECT_DIR}
+    - .gitlab-ci/merge_into_manifest.py
+        --gitlab-url=${CI_SERVER_URL}
+        --token=${GITBOT_TOKEN}
+        --manifest-project=${MANIFEST_PROJECT}
+        --master-branch=${MASTER_BRANCH}
+        --project=${CI_PROJECT_PATH}
+        --commit=${CI_COMMIT_SHA}
+        --save-revision-to=manifest_revision
+  artifacts:
+    paths:
+      - manifest_revision
+
+# --------------------------------------------------------------------------------------
+# Stage: build
+# --------------------------------------------------------------------------------------
+build:
+  stage: build
+  rules:
+    - if: $CI_MERGE_REQUEST_IID
+  trigger:
+    project: SECO-Northern-Europe/yocto/infrastructure/ci-test/minimal-manifest
+    branch: "integrate/${CI_PROJECT_NAME}/${CI_COMMIT_REF_NAME}"
+    strategy: depend
+
+# --------------------------------------------------------------------------------------
+# Stage: check
+# --------------------------------------------------------------------------------------
+check:
+  stage: check
+  rules:
+    - if: $CI_MERGE_REQUEST_IID
+  needs: ["integrate"]
+  tags:
+    - infrastructure
+  timeout: 2m
+  script:
+    - cd ${CI_PROJECT_DIR}
+    - .gitlab-ci/check_if_integration_branch_is_up_to_date.py
+        --gitlab-url=${CI_SERVER_URL}
+        --token=${GITBOT_TOKEN}
+        --manifest-project=${MANIFEST_PROJECT}
+        --integration-base=${MASTER_BRANCH}
+        --project=${CI_PROJECT_PATH}
+        --merge-request=${CI_MERGE_REQUEST_IID}