Miniflux: change secret storage from env to files

files/miniflux/docker-compose.yml.j2

@@ -5,23 +5,26 @@ services:
   miniflux_app:
     image: miniflux/miniflux:2.2.10
     container_name: miniflux_app
+    user: "{{ user_create_result.uid }}:{{ user_create_result.group }}"
     depends_on:
       miniflux_postgres:
         condition: service_healthy
     networks:
       - "miniflux_network"
       - "web_proxy_network"
+    volumes:
+      - "{{ secrets_dir }}:/secrets:ro"
     environment:
-      - DATABASE_URL=postgres://{{ miniflux_postgres_user }}:{{ miniflux_postgres_password }}@miniflux_postgres/{{ miniflux_postgres_database }}?sslmode=disable
+      - DATABASE_URL_FILE=/secrets/miniflux_database_url
       - RUN_MIGRATIONS=1
       - CREATE_ADMIN=1
-      - ADMIN_USERNAME={{ miniflux_admin_user }}
-      - ADMIN_PASSWORD={{ miniflux_admin_password }}
+      - ADMIN_USERNAME_FILE=/secrets/miniflux_admin_user
+      - ADMIN_PASSWORD_FILE=/secrets/miniflux_admin_password
       - BASE_URL=https://miniflux.vakhrushev.me
       - DISABLE_LOCAL_AUTH=1
       - OAUTH2_OIDC_DISCOVERY_ENDPOINT=https://auth.vakhrushev.me
-      - OAUTH2_CLIENT_ID={{ miniflux_oidc_client_id }}
-      - OAUTH2_CLIENT_SECRET={{ miniflux_oidc_client_secret }}
+      - OAUTH2_CLIENT_ID_FILE=/secrets/miniflux_oidc_client_id
+      - OAUTH2_CLIENT_SECRET_FILE=/secrets/miniflux_oidc_client_secret
       - OAUTH2_OIDC_PROVIDER_NAME=Authelia
       - OAUTH2_PROVIDER=oidc
       - OAUTH2_REDIRECT_URL=https://miniflux.vakhrushev.me/oauth2/oidc/callback
@@ -42,7 +45,7 @@ services:
     volumes:
       - {{ postgres_data_dir }}:/var/lib/postgresql/data
     healthcheck:
-      test: ["CMD", "pg_isready", "-U", "miniflux"]
+      test: ["CMD", "pg_isready", "--username={{ miniflux_postgres_user }}", "--dbname={{ miniflux_postgres_database }}"]
       interval: 10s
       start_period: 30s