No connection to backend server, try again in a few minutes.

Ubuntu 20.04 Docker 20.10.2 Docker-compose 1.28.0

No connection to backend server, try again in a few minutes.

I have taken the docker-compose.yml from github and amended a little bit:

` networks:

libre: driver: bridge services: proxy: image: reallibrephotos/librephotos-proxy:${tag} tty: true container_name: librephotos-proxy restart: always ports: - ${httpPort}:80 networks: - libre librephotos-db: image: postgres container_name: librephotos-db restart: always environment: - POSTGRES_USER=${dbUser} - POSTGRES_PASSWORD=${dbPass} - POSTGRES_DB=${dbName} volumes: - /data/libredb/config:/var/lib/postgresql/data command: postgres -c fsync=off -c synchronous_commit=off -c full_page_writes=off -c random_page_cost=1.0 healthcheck: test: [‘CMD-SHELL’, ‘pg_isready -d $dbName -U $dbUser’] interval: 5s timeout: 5s retries: 5 networks: - libre

frontend: image: reallibrephotos/librephotos-frontend:${tag} container_name: librephotos-frontend restart: always tty: true networks: - libre

backend: image: reallibrephotos/librephotos:${tag} container_name: librephotos-backend restart: always volumes: - /mnt/data/media/pictures/mobile:/data - /mnt/data/media/libre/thumbs:/code/protected_media - /data/libre/config:/code/logs - /mnt/data/media/libre/cache:/root/.cache

environment:
  - SECRET_KEY=${shhhhKey}
  - BACKEND_HOST=backend
  - ADMIN_EMAIL=${adminEmail}
  - ADMIN_USERNAME=${userName}
  - ADMIN_PASSWORD=${userPass}
  - DEBUG=true
  - DB_BACKEND=postgresql
  - DB_NAME=${dbName}
  - DB_USER=${dbUser}
  - DB_PASS=${dbPass}
  - DB_HOST=librephotos-db
  - DB_PORT=5432
  - REDIS_HOST=librephotos-redis
  - REDIS_PORT=6379
  - MAPBOX_API_KEY=${mapApiKey}
  - TIME_ZONE=${timeZone}
  - WEB_CONCURRENCY=${gunniWorkers}
  - WORKER_TIMEOUT=${workerTimeOut}
  - SKIP_PATTERNS=${skipPatterns}

# Wait for Postgres
depends_on:
  librephotos-db:
    condition: service_healthy
networks:
  - libre

librephotos-redis: image: redis:alpine container_name: librephotos-redis restart: always networks: - libre `

The .env file:

tag=dev dbUser=libre dbPass=libre123 dbName=libre shhhhKey=c7rf4YENv3XL3hVMM5Mv adminEmail=xxx userName=xxx userPass=xxx mapApiKey= timeZone=Europe/Amsterdam gunniWorkers=2 workerTimeOut=1800 skipPatterns= httpPort=3000

All logs are looking fine.

Backend:

21:40:45 Cleaning registries for queue: default, [2021-01-22 21:40:30 +0000] [99] [INFO] Starting gunicorn 20.0.4, Running backend server..., [2021-01-22 21:40:30 +0000] [99] [INFO] Listening at: http://0.0.0.0:8001 (99), [2021-01-22 21:40:30 +0000] [99] [INFO] Using worker: gevent, [2021-01-22 21:40:30 +0000] [103] [INFO] Booting worker with pid: 103, [2021-01-22 21:40:30 +0000] [104] [INFO] Booting worker with pid: 104, 21:40:45 Worker rq:worker:f9fe87c1baec474a9df19803ce5ca77b: started, version 1.6.1, 21:40:45 Subscribing to channel rq:pubsub:f9fe87c1baec474a9df19803ce5ca77b, 21:40:45 *** Listening on default...

DB:

PostgreSQL init process complete; ready for start up., 2021-01-22 21:45:16.458 UTC [1] LOG: database system is ready to accept connections, 2021-01-22 21:45:16.454 UTC [75] LOG: database system was shut down at 2021-01-22 21:45:16 UTC, 2021-01-22 21:45:16.452 UTC [1] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432", 2021-01-22 21:45:16.451 UTC [1] LOG: listening on IPv6 address "::", port 5432, 2021-01-22 21:45:16.451 UTC [1] LOG: listening on IPv4 address "0.0.0.0", port 5432, 2021-01-22 21:45:16.451 UTC [1] LOG: starting PostgreSQL 13.1 (Debian 13.1-1.pgdg100+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 8.3.0-6) 8.3.0, 64-bit

Frontend:

│ - On Your Network: http://172.29.0.2:3000 │ , │ - Local: http://localhost:3000 │ , │ Serving! │

Proxy:

/docker-entrypoint.sh: Configuration complete; ready for start up ,/docker-entrypoint.sh: Launching /docker-entrypoint.d/20-envsubst-on-templates.sh ,10-listen-on-ipv6-by-default.sh: info: Enabled listen on IPv6 in /etc/nginx/conf.d/default.conf ,/docker-entrypoint.sh: Launching /docker-entrypoint.d/10-listen-on-ipv6-by-default.sh ,10-listen-on-ipv6-by-default.sh: info: Getting the checksum of /etc/nginx/conf.d/default.conf ,/docker-entrypoint.sh: Looking for shell scripts in /docker-entrypoint.d/ ,/docker-entrypoint.sh: /docker-entrypoint.d/ is not empty, will attempt to perform configuration

Redis:

1:C 22 Jan 2021 21:45:15.132 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo, 1:C 22 Jan 2021 21:45:15.132 # Redis version=6.0.10, bits=64, commit=00000000, modified=0, pid=1, just started, 1:C 22 Jan 2021 21:45:15.132 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf, 1:M 22 Jan 2021 21:45:15.134 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect., 1:M 22 Jan 2021 21:45:15.134 # Server initialized, 1:M 22 Jan 2021 21:45:15.134 * Running mode=standalone, port=6379., 1:M 22 Jan 2021 21:45:15.136 * Ready to accept connections

I’ve done another pull, but am I up-to-date.

Any ideas? Google only gives me old issues…

[TheFehr]

just to followup* I’m certain this is an issue with my configuration; LibrePhotos works perfectly fine when hitting it from the local ip. The frontend is able to reach the backend without issue. My problem relates to how I’m reverse-proxying the frontend with traefik v2 and in this case, the frontend is unable to connect to the backend. Hope to revisit this when I have more time as it’s a super cool project!

Have you figured out a solution? I managed to get it set up with traefik. I believe the two most important steps were:

1. Add 2 networks to the docker-compose file. One being the one traefik is on as well. And one with external: false for the internal communication between the librephotos components.
2. Remove the port mapping from the proxy container and just let traefik figure out how to talk to the proxy.

[derneuere]

I am not sure how traefik is different from nginx, but we refactored all the nginx.conf’s into one file. Maybe that helps you finding that issue: https://github.com/LibrePhotos/librephotos-docker/blob/main/proxy/nginx.conf