diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..84c87d6
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,6 @@
+version: 2
+updates:
+  - package-ecosystem: "docker"
+    directory: "/"
+    schedule:
+      interval: "weekly"
diff --git a/.github/workflows/build-test-and-publish.yml b/.github/workflows/build-test-and-publish.yml
index 27d253b..d8fc2a2 100644
--- a/.github/workflows/build-test-and-publish.yml
+++ b/.github/workflows/build-test-and-publish.yml
@@ -1,5 +1,8 @@
 name: Build, test, and publish
 on:
+  pull_request:
+    branches:
+      - main
   workflow_dispatch:
     inputs:
       distribution:
@@ -66,8 +69,8 @@ jobs:
         env:
           DISTRO: ${{ matrix.DISTRO }}
           PLATFORM: ${{ matrix.PLATFORM }}
-          VERSION: ${{ github.event.inputs.version || '' }}
-          SNAPSHOT: ${{ github.event.inputs.snapshot || '' }}
+          VERSION: ${{ github.event.inputs.version || '1.0.0-beta-4' }}
+          SNAPSHOT: ${{ github.event.inputs.snapshot || 'false' }}
           IMAGE_REPO_OPERATON: ${{ vars.IMAGE_REPO_OPERATON }}
           IMAGE_REPO_TOMCAT: ${{ vars.IMAGE_REPO_TOMCAT }}
       - name: Test
@@ -76,11 +79,12 @@ jobs:
         env:
           DISTRO: ${{ matrix.DISTRO }}
           PLATFORM: ${{ matrix.PLATFORM }}
-          VERSION: ${{ github.event.inputs.version || '' }}
-          SNAPSHOT: ${{ github.event.inputs.snapshot || '' }}
+          VERSION: ${{ github.event.inputs.version || '1.0.0-beta-4' }}
+          SNAPSHOT: ${{ github.event.inputs.snapshot || 'false' }}
           IMAGE_REPO_OPERATON: ${{ vars.IMAGE_REPO_OPERATON }}
           IMAGE_REPO_TOMCAT: ${{ vars.IMAGE_REPO_TOMCAT }}
   publish:
+    if: github.event_name == 'workflow_dispatch'
     runs-on: ubuntu-24.04
     needs: build-and-test
     strategy: