make docker registry also env var

Author: bobbai00

.github/workflows/build-images.yml

@@ -30,6 +30,11 @@ on:
         required: true
         default: 'latest'
         type: string
+      docker_registry:
+        description: 'Docker registry namespace (e.g., apache, myorg)'
+        required: false
+        default: 'apache'
+        type: string
       services:
         description: 'Services to build (comma-separated, "*" for all)'
         required: false
@@ -55,7 +60,7 @@ concurrency:
   cancel-in-progress: false
 
 env:
-  DOCKER_REGISTRY: apache  # Apache official Docker Hub repository
+  DOCKER_REGISTRY: ${{ github.event.inputs.docker_registry }}  # Docker registry namespace
 
 jobs:
   # Step 1: Generate JOOQ code once and share it
@@ -447,6 +452,7 @@ jobs:
           echo "" >> $GITHUB_STEP_SUMMARY
           echo "## Build Configuration" >> $GITHUB_STEP_SUMMARY
           echo "- **Branch:** \`${{ github.event.inputs.branch }}\`" >> $GITHUB_STEP_SUMMARY
+          echo "- **Registry:** \`${{ github.event.inputs.docker_registry }}\`" >> $GITHUB_STEP_SUMMARY
           echo "- **Tag:** \`${{ github.event.inputs.image_tag }}\`" >> $GITHUB_STEP_SUMMARY
           echo "- **Services:** ${{ github.event.inputs.services }}" >> $GITHUB_STEP_SUMMARY
           echo "- **Platforms:** ${{ github.event.inputs.platforms }}" >> $GITHUB_STEP_SUMMARY
@@ -463,7 +469,7 @@ jobs:
           echo "## Images Published" >> $GITHUB_STEP_SUMMARY
           echo "All images are now available as multi-arch manifests at:" >> $GITHUB_STEP_SUMMARY
           echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
-          echo "docker pull apache/texera/<service>:${{ github.event.inputs.image_tag }}" >> $GITHUB_STEP_SUMMARY
+          echo "docker pull ${{ github.event.inputs.docker_registry }}/<service-name>:${{ github.event.inputs.image_tag }}" >> $GITHUB_STEP_SUMMARY
           echo "\`\`\`" >> $GITHUB_STEP_SUMMARY
           echo "" >> $GITHUB_STEP_SUMMARY
           echo "### Usage" >> $GITHUB_STEP_SUMMARY