Add a stage branch deploy beside production on z00.

Pushing stage runs CI and deploys to stage.transcribe.z00.nu with its own data, Reverb credentials, and Caddy network.

compose.z00.yaml

@@ -1,4 +1,5 @@
-# z00 production overlay for AndyTranscribe (behind Caddy Proxy Manager)
+# z00 overlay for AndyTranscribe (behind Caddy Proxy Manager).
+# Instance .env supplies PUBLIC_APP_URL, REVERB_PUBLIC_HOST, CADDY_NETWORK, CONTAINER_PREFIX.
 services:
   app:
     networks:
@@ -7,30 +8,39 @@ services:
     environment:
       APP_ENV: production
       APP_DEBUG: "false"
-      APP_URL: https://transcribe.z00.nu
+      APP_URL: ${PUBLIC_APP_URL:-https://transcribe.z00.nu}
       TRUSTED_PROXIES: "*"
       REVERB_HOST: reverb
       REVERB_PORT: "8080"
       REVERB_SCHEME: http
+      REVERB_PUBLIC_HOST: ${REVERB_PUBLIC_HOST:-reverb.transcribe.z00.nu}
+      REVERB_PUBLIC_PORT: "443"
+      REVERB_PUBLIC_SCHEME: https
   reverb:
     networks:
       - default
       - caddy
     environment:
-      APP_URL: https://transcribe.z00.nu
-      REVERB_HOST: reverb.transcribe.z00.nu
+      APP_URL: ${PUBLIC_APP_URL:-https://transcribe.z00.nu}
+      REVERB_HOST: ${REVERB_PUBLIC_HOST:-reverb.transcribe.z00.nu}
       REVERB_PORT: "443"
       REVERB_SCHEME: https
+      REVERB_PUBLIC_HOST: ${REVERB_PUBLIC_HOST:-reverb.transcribe.z00.nu}
+      REVERB_PUBLIC_PORT: "443"
+      REVERB_PUBLIC_SCHEME: https
   queue:
     networks:
       - default
     environment:
       APP_ENV: production
       APP_DEBUG: "false"
-      APP_URL: https://transcribe.z00.nu
+      APP_URL: ${PUBLIC_APP_URL:-https://transcribe.z00.nu}
       REVERB_HOST: reverb
       REVERB_PORT: "8080"
       REVERB_SCHEME: http
+      REVERB_PUBLIC_HOST: ${REVERB_PUBLIC_HOST:-reverb.transcribe.z00.nu}
+      REVERB_PUBLIC_PORT: "443"
+      REVERB_PUBLIC_SCHEME: https
   whisper:
     networks:
       - default
@@ -38,4 +48,4 @@ services:
 networks:
   caddy:
     external: true
-    name: caddy-proxy-manager-test_caddy-test-network
+    name: ${CADDY_NETWORK:-caddy-proxy-manager-test_caddy-test-network}