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FAQ

How can I configure my reverse proxy to serve Portainer?

Here is a working configuration for Nginx (tested on 1.11) to serve Portainer at myhost.mydomain/portainer:

upstream portainer {
    server ADDRESS:PORT;
}

server {
  listen 80;

  location /portainer/ {
      proxy_http_version 1.1;
      proxy_set_header Connection "";
      proxy_pass http://portainer/;
  }
  location /portainer/ws/ {
      proxy_set_header Upgrade $http_upgrade;
      proxy_set_header Connection "upgrade";
      proxy_http_version 1.1;
      proxy_pass http://portainer/ws/;
  }
}

Replace ADDRESS:PORT with the Portainer server/container details.

How can I configure my reverse proxy to serve Portainer using HAProxy?

Here is a working configuration for HAProxy to serve Portainer at portainer.127.0.0.1.xip.io:

global
    maxconn                     10000
    daemon
    ssl-server-verify           none
    tune.ssl.default-dh-param   2048

defaults
    mode    http
    log     global
    option  httplog
    option  dontlognull
    option  http-server-close
    option  forwardfor          except 127.0.0.0/8
    option  redispatch
    retries 30
    timeout http-request        300s
    timeout queue               1m
    timeout connect             10s
    timeout client              1m
    timeout server              1m
    timeout http-keep-alive     10s
    timeout check               10s
    maxconn 10000

userlist users
    group all
    group demo
    group haproxy

listen stats
    bind            *:2100
    mode            http
    stats           enable
    maxconn         10
    timeout client  10s
    timeout server  10s
    timeout connect 10s
    timeout         queue   10s
    stats           hide-version
    stats           refresh 30s
    stats           show-node
    stats           realm Haproxy\ Statistics
    stats           uri  /
    stats           admin if TRUE

frontend www-http
    bind    *:80
    stats   enable
    mode    http
    option  http-keep-alive

    acl portainer   hdr_end(host)   -i portainer.127.0.0.1.xip.io

    use_backend     portainer       if portainer

backend portainer
    stats   enable
    option  forwardfor
    option  http-keep-alive
    server  portainer    127.0.0.1:9000 check

Note: http-keep-alive must be set for both frontend and backend

Exposed ports in the container view redirects me to 0.0.0.0, what can I do?

In order for Portainer to be able to redirect you to your Docker host IP address and not the 0.0.0.0 address, you will have to change the configuration of your Docker daemon and add the --ip option.

Have a look at the Docker documentation for more details.

Note that you will have to restart your Docker daemon for the changes to be taken in effect.

I restarted Portainer and lost all my data, why?

Portainer data is stored inside the Docker container. If you want to keep the data of your Portainer instance after reboot/upgrade, you'll need to persist the data. See :doc:`Deployment <deployment>`

How can I use a custom CSS file to customize Portainer look?

A workaround can be used to specify your own vendor.css and portainer.css files. Simply bind mount the folder of your choice to the css folder inside the container:

$ docker run -d -p 9000:9000 -v <your-absolute-path>/css:/css/ portainer/portainer