Add woodpecker pipe file

.woodpecker/prod-build-image.yaml

@@ -0,0 +1,17 @@
+when:
+  - event: push
+    branch: master
+
+steps:
+  build:
+    image: docker
+    volumes:
+      - /var/run/docker.sock:/var/run/docker.sock
+    environment:
+      IMAGE_NAME: gitea.b7d.nl/${CI_REPO_OWNER}/${CI_REPO_NAME}
+    commands:
+      - docker login gitea.b7d.nl -u $GITEA_USER -p $GITEA_TOKEN
+      - docker build -t $IMAGE_NAME:$CI_COMMIT_SHA -f Dockerfile-prod .
+      - docker tag $IMAGE_NAME:$CI_COMMIT_SHA $IMAGE_NAME:latest
+      - docker push $IMAGE_NAME:$CI_COMMIT_SHA
+      - docker push $IMAGE_NAME:latest