Port change in docker compose does not work #12714

Jimmi61 · 2025-06-05T04:39:05Z

Jimmi61
Jun 5, 2025

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I first build the container in Docker using port 9000:9000, after that I decide to change to:
ports:
- 8000:8000
- 9443:9443

The port 9443 correctly work but the port 8000 does not work and the port 9000 still works, even though is not there anymore. What went wrong?

Nick-Portainer · 2025-06-05T21:34:20Z

Nick-Portainer
Jun 5, 2025
Maintainer

Port 8000 is for the tunnel, is this not working for you? Can you confirm the running container has this port exposed? Any more details you can provide would be fantastic.

0 replies

Jimmi61 · 2025-06-06T07:27:43Z

Jimmi61
Jun 6, 2025
Author

I enabled all 3 ports now and I can see them exposed

# docker inspect portainer
      ...
       "NetworkSettings": {
            "Bridge": "",
            "SandboxID": "7197c21b3e61a1d6d74f9161c0704814d8ee45daf56eb1553fb7d90da0f3fc45",
            "SandboxKey": "/var/run/docker/netns/7197c21b3e61",
            "Ports": {
                "8000/tcp": [
                    {
                        "HostIp": "0.0.0.0",
                        "HostPort": "8000"
                    },
                    {
                        "HostIp": "::",
                        "HostPort": "8000"
                    }
                ],
                "9000/tcp": [
                    {
                        "HostIp": "0.0.0.0",
                        "HostPort": "9000"
                    },
                    {
                        "HostIp": "::",
                        "HostPort": "9000"
                    }
                ],
                "9443/tcp": [
                    {
                        "HostIp": "0.0.0.0",
                        "HostPort": "9443"
                    },
                    {
                        "HostIp": "::",
                        "HostPort": "9443"
                    }
                ]
            },
            "HairpinMode": false,
            "LinkLocalIPv6Address": "",
            "LinkLocalIPv6PrefixLen": 0,
            "SecondaryIPAddresses": null,
            "SecondaryIPv6Addresses": null,
            "EndpointID": "",
            "Gateway": "",
            "GlobalIPv6Address": "",
            "GlobalIPv6PrefixLen": 0,
            "IPAddress": "",
            "IPPrefixLen": 0,
            "IPv6Gateway": "",
            "MacAddress": "",
            "Networks": {
                "portainer": {
                    "IPAMConfig": null,
                    "Links": null,
                    "Aliases": [
                        "portainer",
                        "portainer"
                    ],
                    "MacAddress": "5e:fa:50:46:e3:95",
                    "DriverOpts": null,
                    "GwPriority": 0,
                    "NetworkID": "3e96696811d5dda8f16defe7b5b3373fc242b0e9fb75b831c29a7a56c7434ca7",
                    "EndpointID": "d5368741508604a35bab09e6b7d655fed14e11193b32472b2ef4a0a5b97bd918",
                    "Gateway": "172.19.0.1",
                    "IPAddress": "172.19.0.2",
                    "IPPrefixLen": 16,
                    "IPv6Gateway": "",
                    "GlobalIPv6Address": "",
                    "GlobalIPv6PrefixLen": 0,
                    "DNSNames": [
                        "portainer",
                        "6f36224abb11"
                    ]
                }

Ports 9000 and 9443 work fine, 8000 shows only "Not found"

2 replies

Nick-Portainer Jun 8, 2025
Maintainer

@Jimmi61, what do you mean 8000 shows "Not found"? THe port 8000 is for the edge agent tunnel only. You do not access the Portainer UI with this Port.

Jimmi61 Jun 13, 2025
Author

Ok, my mistake, I understood it wrong and did not RTFM . Thanks for your explanation.

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Port change in docker compose does not work #12714

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Jimmi61 Jun 5, 2025

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