[#53464] replaced containered proxy with caddy (#70)

* [#53464] replaced containered proxy with caddy

- running compose stack work with slim container now
- using caddy as a light weight proxy
- tested with and without OPENPROJECT_RAILS__RELATIVE__URL__ROOT

* rename doc root to avoid confusion, use slim as default container

---------

Co-authored-by: Markus Kahl <machisuji@gmail.com>

.gitignore

@@ -1,2 +1,5 @@
+# Jetbrains IDE
+.idea/
+
 *.swp
 *.tar.gz

compose/.env.example

@@ -6,7 +6,7 @@
 # Please refer to our documentation to see all possible variables:
 #   https://www.openproject.org/docs/installation-and-operations/configuration/environment/
 #
-TAG=14
+TAG=14-slim
 OPENPROJECT_HTTPS=false
 OPENPROJECT_HOST__NAME=localhost
 PORT=127.0.0.1:8080

compose/Caddyfile.template

@@ -0,0 +1,9 @@
+:80 {
+    root * /public
+
+    reverse_proxy * http://${APP_HOST}:8080
+
+    file_server
+
+    log
+}

compose/docker-compose.yml

@@ -5,11 +5,12 @@ networks:
 volumes:
   pgdata:
   opdata:
+  assets:
 
 x-op-restart-policy: &restart_policy
   restart: unless-stopped
 x-op-image: &image
-  image: openproject/openproject:${TAG:-14}
+  image: openproject/openproject:${TAG:-14-slim}
 x-op-app: &app
   <<: [*image, *restart_policy]
   environment:
@@ -47,17 +48,21 @@ services:
       - backend
 
   proxy:
-    <<: [*image, *restart_policy]
-    command: "./docker/prod/proxy"
+    image: caddy:2
+    <<: *restart_policy
+    command: "/usr/local/bin/proxy-entrypoint.sh"
     ports:
       - "${PORT:-8080}:80"
     environment:
       APP_HOST: web
-      OPENPROJECT_RAILS__RELATIVE__URL__ROOT: "${OPENPROJECT_RAILS__RELATIVE__URL__ROOT:-}"
     depends_on:
       - web
     networks:
       - frontend
+    volumes:
+      - ./Caddyfile.template:/etc/caddy/Caddyfile.template:ro
+      - ./proxy-entrypoint.sh:/usr/local/bin/proxy-entrypoint.sh:ro
+      - assets:/public:ro
 
   web:
     <<: *app
@@ -77,6 +82,8 @@ services:
       timeout: 3s
       retries: 3
       start_period: 30s
+    volumes:
+      - assets:/app/public
 
   autoheal:
     image: willfarrell/autoheal:1.2.0

compose/proxy-entrypoint.sh

@@ -0,0 +1,7 @@
+#!/bin/sh
+
+set -e
+
+sed 's|${APP_HOST}|'"$APP_HOST"'|g' /etc/caddy/Caddyfile.template > /etc/caddy/Caddyfile
+
+caddy run --config /etc/caddy/Caddyfile