Use m4 to make the docker-compose file less ugly

docker-compose.m4

@@ -0,0 +1,71 @@
+divert(-1)
+define(`upcase', `translit($1, `a-z', `A-Z')')
+define(`env', `upcase($1):${upcase($1):?upcase($1)}')
+define(`env_fb', `upcase($1):-$2')
+define(`env_inline', `${upcase($1):?upcase($1)}')
+divert(1)dnl
+
+version: "3"
+
+networks:
+  default:
+    external:
+      name: env_inline(`docker_network')
+
+services:
+  db:
+    image: postgres:10.3-alpine
+    restart: unless-stopped
+    environment:
+      env(`postgres_db')
+      env(`postgres_user')
+      env(`postgres_password')
+    volumes:
+      - env_inline(`docker_datadir')/db:/var/lib/postgresql/data
+
+  server:
+    build:
+      context: .
+      dockerfile: ./pleroma.dockerfile
+    restart: unless-stopped
+    links:
+      - db
+    environment:
+      env(`postgres_ip', `db')
+      env(`postgres_db')
+      env(`postgres_user')
+      env(`postgres_password')
+
+      env(`pleroma_url')
+      env(`pleroma_scheme')
+      env(`pleroma_port')
+      env(`pleroma_secret_key_base')
+      env(`pleroma_name')
+      env(`pleroma_admin_email')
+      env(`pleroma_user_limit')
+      env(`pleroma_registrations_open')
+      env(`pleroma_media_proxy_enabled')
+      env(`pleroma_media_proxy_redirect_on_failure')
+      env(`pleroma_media_proxy_url')
+
+      env_fb(`pleroma_workspace', `/pleroma')
+      env_fb(`mix_archives', `/mix/archives')
+      env_fb(`mix_home', `/mix/home')
+      env_fb(`mix_env', `prod')
+    volumes:
+      - ./pleroma:/pleroma
+      - env_inline(`docker_datadir')/pleroma:/data
+      - env_inline(`docker_datadir')/mix:/mix
+      - env_inline(`docker_datadir')/misc/cache:/root/.cache
+      - env_inline(`docker_datadir')/misc/meta:/meta
+    labels:
+      traefik.enable: "true"
+      traefik.fe.port: "4000"
+      traefik.fe.protocol: "http"
+      traefik.fe.entryPoints: "http,https"
+      traefik.fe.frontend.rule: "Host:env_inline(`pleroma_url')"
+      traefik.cache.port: "80"
+      traefik.cache.protocol: "http"
+      traefik.cache.entryPoints: "http,https"
+      traefik.cache.frontend.rule: "Host:env_inline(`pleroma_media_proxy_url')"
+

docker-compose.yml

@@ -1,64 +0,0 @@
-version: "3"
-
-networks:
-  default:
-    external:
-      name: ${DOCKER_NETWORK:?DOCKER_NETWORK}
-
-services:
-  db:
-    image: postgres:10.3-alpine
-    restart: unless-stopped
-    environment:
-      POSTGRES_DB: ${POSTGRES_DB:?POSTGRES_DB}
-      POSTGRES_USER: ${POSTGRES_USER:?POSTGRES_USER}
-      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?POSTGRES_PASSWORD}
-    volumes:
-      - ${DOCKER_DATADIR:?DOCKER_DATADIR}/db:/var/lib/postgresql/data
-
-  server:
-    build:
-      context: .
-      dockerfile: ./pleroma.dockerfile
-    restart: unless-stopped
-    links:
-      - db
-    environment:
-      POSTGRES_IP: db
-      POSTGRES_DB: ${POSTGRES_DB:?POSTGRES_DB}
-      POSTGRES_USER: ${POSTGRES_USER:?POSTGRES_USER}
-      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:?POSTGRES_PASSWORD}
-
-      PLEROMA_URL: ${PLEROMA_URL:?PLEROMA_URL}
-      PLEROMA_SCHEME: ${PLEROMA_SCHEME:?PLEROMA_SCHEME}
-      PLEROMA_PORT: ${PLEROMA_PORT:?PLEROMA_PORT}
-      PLEROMA_SECRET_KEY_BASE: ${PLEROMA_SECRET_KEY_BASE:?PLEROMA_SECRET_KEY_BASE}
-      PLEROMA_NAME: ${PLEROMA_NAME:?PLEROMA_NAME}
-      PLEROMA_ADMIN_EMAIL: ${PLEROMA_ADMIN_EMAIL:?PLEROMA_ADMIN_EMAIL}
-      PLEROMA_USER_LIMIT: ${PLEROMA_USER_LIMIT:?PLEROMA_USER_LIMIT}
-      PLEROMA_REGISTRATIONS_OPEN: ${PLEROMA_REGISTRATIONS_OPEN:?PLEROMA_REGISTRATIONS_OPEN}
-      PLEROMA_MEDIA_PROXY_ENABLED: ${PLEROMA_MEDIA_PROXY_ENABLED:?PLEROMA_MEDIA_PROXY_ENABLED}
-      PLEROMA_MEDIA_PROXY_REDIRECT_ON_FAILURE: ${PLEROMA_MEDIA_PROXY_REDIRECT_ON_FAILURE:?PLEROMA_MEDIA_PROXY_REDIRECT_ON_FAILURE}
-      PLEROMA_MEDIA_PROXY_URL: ${PLEROMA_MEDIA_PROXY_URL:?PLEROMA_MEDIA_PROXY_URL}
-
-      PLEROMA_WORKSPACE: /pleroma
-      MIX_ARCHIVES: /mix/archives
-      MIX_HOME: /mix/home
-      MIX_ENV: prod
-    volumes:
-      - ./pleroma:/pleroma
-      - ${DOCKER_DATADIR:?DOCKER_DATADIR}/pleroma:/data
-      - ${DOCKER_DATADIR:?DOCKER_DATADIR}/mix:/mix
-      - ${DOCKER_DATADIR:?DOCKER_DATADIR}/misc/cache:/root/.cache
-      - ${DOCKER_DATADIR:?DOCKER_DATADIR}/misc/meta:/meta
-    labels:
-      traefik.enable: "true"
-      traefik.fe.port: "4000"
-      traefik.fe.protocol: "http"
-      traefik.fe.entryPoints: "http,https"
-      traefik.fe.frontend.rule: "Host:${PLEROMA_URL:?PLEROMA_URL}"
-      traefik.cache.port: "80"
-      traefik.cache.protocol: "http"
-      traefik.cache.entryPoints: "http,https"
-      traefik.cache.frontend.rule: "Host:${PLEROMA_MEDIA_PROXY_URL:?PLEROMA_MEDIA_PROXY_URL}"
-

pleroma.sh

@@ -47,26 +47,42 @@ function run_dockerized {
     docker-compose down
 }
 
+function action__pre {
+    m4 docker-compose.m4 > docker-compose.yml
+}
+
+function action__post {
+    rm docker-compose.yml
+}
+
 function action__build {
+    action__pre
     run_dockerized "build"
     log_ok "Done"
+    action__post
 }
 
 function action__configure {
+    action__pre
     run_dockerized "configure"
     log_ok "Done"
+    action__post
 }
 
 function action__run {
+    action__pre
     log_info "Booting pleroma..."
     docker-compose up --remove-orphans -d
     log_ok "Done"
+    action__post
 }
 
 function action__stop {
+    action__pre
     log_info "Stopping pleroma..."
     docker-compose down
     log_ok "Done"
+    action__post
 }
 
 if [[ -z "$1" ]]; then