add woodpecker CI

.woodpecker.yml

@@ -0,0 +1,29 @@
+---
+branches: main
+
+pipeline:
+  woodpecker-ci:
+    image: woodpeckerci/plugin-docker-buildx
+    privileged: true
+    secrets: [repository_username, repository_password]
+    settings:
+      dockerfile: woodpecker-ci/Containerfile
+      platforms: linux/amd64,linux/arm64/v8
+      registry: git.shrug.pw
+      repo: git.shrug.pw/neil/cultfiftoctet.org
+      tag: latest
+      pull_image: true
+      auto_tag: true
+      auto_labels: true
+      mtu: 1480
+      username:
+        from_secret: registry_username
+      password:
+        from_secret: registry_password
+      logins:
+        - registry: git.shrug.pw
+          username:
+            from_secret: registry_username
+          password:
+            from_secret: registry_password
+