add drone-ci

.drone.yml

@@ -5,42 +5,19 @@ type: docker
 steps:
   - name: build
     image: docker:dind
+    settings:
+      mtu: 1450
     volumes:
       - name: dockersock
         path: /var/run
-    environment:
-      DOCKER_USERNAME:
-        from_secret: docker_username
-      DOCKER_PASSWORD:
-        from_secret: docker_password
+#    environment:
+#      DOCKER_PASSWORD:
+#        from_secret: docker_password
     commands:
       - sleep 5 # give docker enough time to start
-      - docker login -u $DOCKER_USERNAME -p $DOCKER_PASSWORD
-      - ./debian/11/build.sh
-      - ./debian/12/build.sh
-    when:
-      branch:
-      - master
-      event:
-      - push
-
-  - name: rebuild
-    image: docker:dind
-    volumes:
-      - name: dockersock
-        path: /var/run
-    environment:
-      DOCKER_USERNAME:
-        from_secret: docker_username
-      DOCKER_PASSWORD:
-        from_secret: docker_password
-    commands:
-      - sleep 5 # give docker enough time to start
-      - docker login -u $DOCKER_USERNAME -p $DOCKER_PASSWORD
-      - ./build/rebuild.sh
-    when:
-      event:
-      - cron
+      - docker pull pommib/powerdns:4.6-bookworm
+      - docker pull debian:bookworm-slim
+      - docker build --no-cache -t pommib/powerdns:4.6-bookworm ./debian/12/
 
 services:
   - name: docker

build/rebuild.sh

@@ -1,7 +1,6 @@
 #!/bin/sh
 
 updates_available () {
-    docker pull $1
     if test "$(docker run -it --rm $1 /bin/sh -c 'apt -qqq update && apt -qq list --upgradable')" != ""; then
         return 0
     else