Container does not get the VPN connection

[a-maggi]

Hi, I am using Portainer to manage my Docker containers. I have the following YAML file for my setup:

services:
  gluetun:
    image: qmcgaw/gluetun:latest
    container_name: gluetun
    hostname: gluetun
    cap_add:
      - NET_ADMIN
    devices:
      - /dev/net/tun:/dev/net/tun
    ports:
      - 8888:8888/tcp # HTTP proxy
      - 8388:8388/tcp # Shadowsocks
      - 8388:8388/udp # Shadowsocks
    volumes:
      - /portainer_data:/gluetun
    environment:
      - VPN_SERVICE_PROVIDER=nordvpn
      - VPN_TYPE=openvpn
      # OpenVPN:
      - OPENVPN_USER=****
      - OPENVPN_PASSWORD=****
      - SERVER_COUNTRIES=Argentina
      - UPDATER_PERIOD=
  web:
    image: sha256:8151970c846ca094593afbd838a02a34d22065f54393ed0752cb40c542980af6
    container_name: api-clubahorro
    network_mode: service:gluetun

When I connect to the Gluetun container and run curl ipinfo.io/json, I can verify that the VPN is working because it returns an Argentinian IP. However, when I go to the api-clubahorro container and run the same command, I always get the VPS's IP, not the VPN's.

I ran out of options, don't know what else to do really..

[a-maggi]

These are the logs coming from the Gluetun`s container

========================================
=============== gluetun ================
========================================
=========== Made with ❤️ by ============
======= https://github.com/qdm12 =======
========================================
========================================
Running version latest built on 2024-08-25T07:04:32.409Z (commit 01fa993)
🔧 Need help? ☕ Discussion? https://github.com/qdm12/gluetun/discussions/new/choose
🐛 Bug? ✨ New feature? https://github.com/qdm12/gluetun/issues/new/choose
💻 Email? [email protected]
💰 Help me? https://www.paypal.me/qmcgaw https://github.com/sponsors/qdm12
2024-09-17T03:34:34Z INFO [routing] default route found: interface eth2, gateway 172.18.0.1, assigned IP 172.18.0.16 and family v4
2024-09-17T03:34:34Z INFO [routing] local ethernet link found: eth1
2024-09-17T03:34:34Z INFO [routing] local ethernet link found: eth2
2024-09-17T03:34:34Z INFO [routing] local ethernet link found: eth0
2024-09-17T03:34:34Z INFO [routing] local ipnet found: 10.0.0.0/24
2024-09-17T03:34:34Z INFO [routing] local ipnet found: 10.0.2.0/24
2024-09-17T03:34:34Z INFO [routing] local ipnet found: 172.18.0.0/16
2024-09-17T03:34:34Z INFO [firewall] enabling...
2024-09-17T03:34:34Z INFO [firewall] enabled successfully
2024-09-17T03:34:35Z INFO [storage] merging by most recent 20480 hardcoded servers and 20480 servers read from /gluetun/servers.json
2024-09-17T03:34:35Z INFO Alpine version: 3.20.2
2024-09-17T03:34:35Z INFO OpenVPN 2.5 version: 2.5.10
2024-09-17T03:34:35Z INFO OpenVPN 2.6 version: 2.6.11
2024-09-17T03:34:35Z INFO IPtables version: v1.8.10
2024-09-17T03:34:35Z INFO Settings summary:
├── VPN settings:
|   ├── VPN provider settings:
|   |   ├── Name: nordvpn
|   |   └── Server selection settings:
|   |       ├── VPN type: openvpn
|   |       ├── Countries: Argentina
|   |       └── OpenVPN server selection settings:
|   |           └── Protocol: UDP
|   └── OpenVPN settings:
|       ├── OpenVPN version: 2.6
|       ├── User: [set]
|       ├── Password: [set]
|       ├── Network interface: tun0
|       ├── Run OpenVPN as: root
|       └── Verbosity level: 1
├── DNS settings:
|   ├── Keep existing nameserver(s): no
|   ├── DNS server address to use: 127.0.0.1
|   └── DNS over TLS settings:
|       ├── Enabled: yes
|       ├── Update period: every 24h0m0s
|       ├── Upstream resolvers:
|       |   └── cloudflare
|       ├── Caching: yes
|       ├── IPv6: no
|       └── DNS filtering settings:
|           ├── Block malicious: yes
|           ├── Block ads: no
|           ├── Block surveillance: no
|           └── Blocked IP networks:
|               ├── 127.0.0.1/8
|               ├── 10.0.0.0/8
|               ├── 172.16.0.0/12
|               ├── 192.168.0.0/16
|               ├── 169.254.0.0/16
|               ├── ::1/128
|               ├── fc00::/7
|               ├── fe80::/10
|               ├── ::ffff:127.0.0.1/104
|               ├── ::ffff:10.0.0.0/104
|               ├── ::ffff:169.254.0.0/112
|               ├── ::ffff:172.16.0.0/108
|               └── ::ffff:192.168.0.0/112
├── Firewall settings:
|   └── Enabled: yes
├── Log settings:
|   └── Log level: info
├── Health settings:
|   ├── Server listening address: 127.0.0.1:9999
|   ├── Target address: cloudflare.com:443
|   ├── Duration to wait after success: 5s
|   ├── Read header timeout: 100ms
|   ├── Read timeout: 500ms
|   └── VPN wait durations:
|       ├── Initial duration: 6s
|       └── Additional duration: 5s
├── Shadowsocks server settings:
|   └── Enabled: no
├── HTTP proxy settings:
|   └── Enabled: no
├── Control server settings:
|   ├── Listening address: :8000
|   └── Logging: yes
├── Storage settings:
|   └── Filepath: /gluetun/servers.json
├── OS Alpine settings:
|   ├── Process UID: 1000
|   └── Process GID: 1000
├── Public IP settings:
|   ├── Fetching: every 12h0m0s
|   ├── IP file path: /tmp/gluetun/ip
|   └── Public IP data API: ipinfo
└── Version settings:
    └── Enabled: yes
2024-09-17T03:34:35Z INFO [routing] default route found: interface eth2, gateway 172.18.0.1, assigned IP 172.18.0.16 and family v4
2024-09-17T03:34:35Z INFO [routing] adding route for 0.0.0.0/0
2024-09-17T03:34:35Z INFO [firewall] setting allowed subnets...
2024-09-17T03:34:35Z INFO [routing] default route found: interface eth2, gateway 172.18.0.1, assigned IP 172.18.0.16 and family v4
2024-09-17T03:34:35Z INFO TUN device is not available: open /dev/net/tun: no such file or directory; creating it...
2024-09-17T03:34:35Z INFO [dns] using plaintext DNS at address 1.1.1.1
2024-09-17T03:34:35Z INFO [http server] http server listening on [::]:8000
2024-09-17T03:34:35Z INFO [healthcheck] listening on 127.0.0.1:9999
2024-09-17T03:34:35Z INFO [firewall] allowing VPN connection...
2024-09-17T03:34:35Z INFO [openvpn] OpenVPN 2.6.11 x86_64-alpine-linux-musl [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [MH/PKTINFO] [AEAD]
2024-09-17T03:34:35Z INFO [openvpn] library versions: OpenSSL 3.3.1 4 Jun 2024, LZO 2.10
2024-09-17T03:34:35Z INFO [openvpn] TCP/UDP: Preserving recently used remote address: [AF_INET]103.50.33.84:1194
2024-09-17T03:34:35Z INFO [openvpn] UDPv4 link local: (not bound)
2024-09-17T03:34:35Z INFO [openvpn] UDPv4 link remote: [AF_INET]103.50.33.84:1194
2024-09-17T03:34:35Z INFO [openvpn] [ar53.nordvpn.com] Peer Connection Initiated with [AF_INET]103.50.33.84:1194
2024-09-17T03:34:37Z INFO [openvpn] TUN/TAP device tun0 opened
2024-09-17T03:34:37Z INFO [openvpn] /sbin/ip link set dev tun0 up mtu 1500
2024-09-17T03:34:37Z INFO [openvpn] /sbin/ip link set dev tun0 up
2024-09-17T03:34:37Z INFO [openvpn] /sbin/ip addr add dev tun0 10.100.0.2/24
2024-09-17T03:34:37Z INFO [openvpn] UID set to nonrootuser
2024-09-17T03:34:37Z INFO [openvpn] Initialization Sequence Completed
2024-09-17T03:34:37Z INFO [dns] downloading hostnames and IP block lists
2024-09-17T03:34:37Z INFO [healthcheck] healthy!
2024-09-17T03:34:39Z INFO [dns] DNS server listening on [::]:53
2024-09-17T03:34:40Z INFO [dns] ready
2024-09-17T03:34:41Z INFO [ip getter] Public IP address is 103.50.33.93 (Argentina, Buenos Aires F.D., Buenos Aires)
2024-09-17T03:34:43Z INFO [vpn] You are running 1 commit behind the most recent latest
2024-09-17T15:34:41Z INFO [ip getter] Public IP address is 103.50.33.93 (Argentina, Buenos Aires F.D., Buenos Aires)