Move caddy Dockerfile inline

playbooks/roles/caddy/defaults/main.yml

@@ -27,6 +27,12 @@ caddy_compose:
       app:
         build:
           context: .
+          dockerfile_inline: |
+            FROM caddy:2-builder AS builder
+            RUN xcaddy build \
+                --with github.com/caddy-dns/acmedns@main
+            FROM caddy:2-alpine
+            COPY --from=builder /usr/bin/caddy /usr/bin/caddy
         ports: "{{ caddy_ports }}"
         extra_hosts:
           - host.docker.internal:host-gateway