Replace olive trigger branch with file-based repository list

Update create-release-branch-v1 workflow to read repositories from
feature_branch_repos.txt instead of querying all org repos and filtering
by the olive trigger branch. This provides explicit control over which
repositories get feature branches created.

Changes:
- Remove TRIGGER_BRANCH environment variable
- Add REPO_LIST_FILE environment variable for configurable repo list path
- Replace GitHub API query with file-based repository discovery
- Remove trigger branch existence check from processing loop
- Add feature_branch_repos.txt with current operator repository list

Jira: OSPRH-25746

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
Signed-off-by: Martin Schuppert <mschuppert@redhat.com>

Author: stuggi

.github/workflows/create-release-branch-v1.yml

@@ -60,8 +60,8 @@ jobs:
       BRANCH_VARIABLE: 'BRANCH'
       # 'The name of the OpenStack K8s tag variable in the Makefile (for install_yamls).'
       OPENSTACK_K8S_TAG_VARIABLE: 'OPENSTACK_K8S_TAG'
-      # 'The branch that must exist in a repo for it to be processed.'
-      TRIGGER_BRANCH: 'olive'
+      # 'The relative path to the file containing the list of repositories to process.'
+      REPO_LIST_FILE: 'feature_branch_repos.txt'
       # 'The branch to create the new branch from.'
       SOURCE_BRANCH: 'main'
       # 'Timeout for git operations (in seconds)'
@@ -304,21 +304,27 @@ jobs:
           echo "Feature Branch Name: ${BRANCH_NAME}"
           echo "New Version on main: ${NEW_VERSION}"
           echo "New FORCE_BUMP_BRANCHES: ${FORCE_BUMP_BRANCHES}"
-          echo "Trigger Branch: ${TRIGGER_BRANCH}"
+          echo "Repository List File: ${REPO_LIST_FILE}"
           echo "Source Branch: ${SOURCE_BRANCH}"
           echo "-------------------------------------------"
 
-          echo "Searching for repositories in organization '${ORG_NAME}'..."
-          # Get active (non-archived) repositories
-          repos=$(gh repo list $ORG_NAME --limit 1000 --json name,isArchived --jq '.[] | select(.isArchived == false) | .name')
+          echo "Reading repository list from '${REPO_LIST_FILE}'..."
+          # Check if the repository list file exists
+          if [ ! -f "${REPO_LIST_FILE}" ]; then
+            echo "Error: Repository list file '${REPO_LIST_FILE}' not found."
+            exit 1
+          fi
+
+          # Read repositories from file, filtering out empty lines and comments
+          repos=$(grep -v '^#' "${REPO_LIST_FILE}" | grep -v '^[[:space:]]*$' | tr '\n' ' ')
 
           if [ -z "$repos" ]; then
-            echo "No active repositories found in the organization or permissions are missing."
+            echo "No repositories found in '${REPO_LIST_FILE}'."
             exit 1
           fi
-          
+
           total_repos=$(echo "$repos" | wc -w)
-          echo "Found ${total_repos} active repositories to process."
+          echo "Found ${total_repos} repositories to process from file."
 
           created_repos=""
           failed_repos=""
@@ -333,23 +339,13 @@ jobs:
           for repo_name in $repos; do
             echo "--- Processing REPOSITORY: ${repo_name} (${current_repo}/${total_repos}) ---"
 
-            if [[ "$repo_name" == "rabbitmq-cluster-operator" ]]; then 
+            if [[ "$repo_name" == "rabbitmq-cluster-operator" ]]; then
               echo "ℹ️ Skipping ${repo_name} (handled separately)"
               echo "${repo_name}" >> /tmp/skipped_repos.txt
               ((current_repo++))
               continue
             fi
 
-            # Check if trigger branch exists - FAIL if API call fails
-            if ! gh api "repos/${ORG_NAME}/${repo_name}/branches/${TRIGGER_BRANCH}" >/dev/null 2>&1; then
-              echo "❌ Trigger branch '${TRIGGER_BRANCH}' not found in ${repo_name}. Skipping."
-              echo "${repo_name}" >> /tmp/skipped_repos.txt
-              ((current_repo++))
-              continue
-            fi
-
-            echo "✅ Trigger branch '${TRIGGER_BRANCH}' found in ${repo_name}."
-
             TEMP_DIR=$(mktemp -d)
             echo "Cloning repository into ${TEMP_DIR}..."
 
@@ -475,9 +471,9 @@ jobs:
           total_checked=$(echo "$repos" | wc -w)
 
           echo "📊 Processing Summary:"
-          echo "  • Total repositories checked: ${total_checked}"
+          echo "  • Total repositories from list: ${total_checked}"
           echo "  • Successfully processed: ${successful_count}"
-          echo "  • Skipped (no trigger branch or already exists): ${skipped_count}"
+          echo "  • Skipped (already exists or handled separately): ${skipped_count}"
 
           if [ "$DRY_RUN" = "true" ]; then
             echo ""

feature_branch_repos.txt

@@ -0,0 +1,37 @@
+# List of repositories to create feature branches in
+# One repository name per line
+# Lines starting with # are comments and will be ignored
+# Empty lines are also ignored
+architecture
+barbican-operator
+ci-framework
+cinder-operator
+data-plane-adoption
+designate-operator
+edpm-ansible
+glance-operator
+heat-operator
+horizon-operator
+infra-operator
+install_yamls
+ironic-operator
+keystone-operator
+lib-common
+manila-operator
+mariadb-operator
+mysqld_exporter
+neutron-operator
+nova-operator
+octavia-operator
+openstack-baremetal-operator
+openstack-must-gather
+openstack-network-exporter
+openstack-operator
+ovn-operator
+placement-operator
+prometheus-podman-exporter
+sg-core
+swift-operator
+telemetry-operator
+test-operator
+watcher-operator