use single pr pattern

.gitea/workflows/render-manifests.yaml

@@ -12,6 +12,7 @@ on:
 env:
   CLUSTERS: cl01tl
   BASE_BRANCH: manifests
+  ASSIGNEE: alexlebens
   MAIN_DIR: /workspace/alexlebens/infrastructure/infrastructure
   MANIFEST_DIR: /workspace/alexlebens/infrastructure/infrastructure-manifests
 
@@ -109,7 +110,7 @@ jobs:
         run: |
           cd ${MANIFEST_DIR}
 
-          BRANCH_NAME="auto/update-manifests-$(date +%s)"
+          BRANCH_NAME="auto/update-manifests"
 
           # Configure Git
           echo ">> Configure git to use gitea-bot as user ..."
@@ -130,9 +131,57 @@ jobs:
           echo "HEAD_BRANCH=$BRANCH_NAME" >> $GITEA_OUTPUT
           echo "push=true" >> $GITEA_OUTPUT
 
+      - name: Check for Pull Request
+        id: check-for-pull-requst
+        if: steps.commit-push.outputs.push == 'true'
+        env:
+          GITEA_TOKEN: ${{ secrets.BOT_TOKEN }}
+          GITEA_URL: ${{ secrets.REPO_URL }}
+          HEAD_BRANCH: ${{ steps.commit-push.outputs.HEAD_BRANCH }}
+        run: |
+          cd ${MANIFEST_DIR}
+
+          API_ENDPOINT="${GITEA_URL}/api/v1/repos/${{ gitea.repository }}/pulls/${BASE_BRANCH}/${HEAD_BRANCH}"
+
+          echo ">> Checking if PR from branch ${HEAD_BRANCH} into ${BASE_BRANCH}"
+          echo ">> With Endpoint of:"
+          echo "$API_ENDPOINT"
+
+          HTTP_STATUS=$(
+            curl -X GET \
+              --silent \
+              --write-out '%{http_code}' \
+              --output response_body.json \
+              --dump-header response_headers.txt \
+              -H "Authorization: token ${GITEA_TOKEN}" \
+              -H "Content-Type: application/json" \
+              "$API_ENDPOINT" 2> response_errors.txt
+          )
+
+          echo ">> HTTP Status Code: $HTTP_STATUS"
+          echo ">> Response Output ..."
+          echo "----"
+          cat response_body.json
+          echo "----"
+          cat response_headers.txt
+          echo "----"
+          cat response_errors.txt
+          echo "----"
+
+          if [ "$HTTP_STATUS" == "200" ]; then
+            echo ">> Pull Request has been found"
+            PR_INDEX=$(cat response_body.json | jq -r .number)
+            echo "pull-request-exists=${PR_INDEX}" >> $GITEA_OUTPUT
+            echo "pull-request-index=true" >> $GITEA_OUTPUT
+
+          else
+            echo ">> Pull Request not found"
+            echo "pull-request-exists=false" >> $GITEA_OUTPUT
+          fi
+
       - name: Create Pull Request
         id: create-pull-request
-        if: steps.commit-push.outputs.push == 'true'
+        if: steps.commit-push.outputs.push == 'true' && steps.check-for-pull-requst.outputs.exists == 'false'
         env:
           GITEA_TOKEN: ${{ secrets.BOT_TOKEN }}
           GITEA_URL: ${{ secrets.REPO_URL }}
@@ -145,7 +194,8 @@ jobs:
           PAYLOAD=$( jq -n \
             --arg head "${HEAD_BRANCH}" \
             --arg base "${BASE_BRANCH}" \
-            --arg title "Automated Manifest Update: $(date +%F)" \
+            --arg assignee "${ASSIGNEE}" \
+            --arg title "Automated Manifest Update" \
             --arg body "This PR contains newly rendered Kubernetes manifests automatically generated by the CI workflow." \
             '{head: $head, base: $base, title: $title, body: $body'} )
 
@@ -179,13 +229,13 @@ jobs:
 
           if [ "$HTTP_STATUS" == "201" ]; then
             echo ">> Pull Request created successfully!"
-
             PR_URL=$(cat response_body.json | jq -r .html_url)
             echo "pull-request-url=${PR_URL}" >> $GITEA_OUTPUT
             echo "pull-request-operation=created" >> $GITEA_OUTPUT
 
           elif [ "$HTTP_STATUS" == "422" ]; then
             echo ">> Failed to create PR (HTTP 422: Unprocessable Entity), PR may already exist"
+
           else
             echo ">> Failed to create PR, HTTP status code: $HTTP_STATUS"
             exit 1