Portainer with NGinx

docker-compose.yml

version: '2'

# Configure a dedicated volume for storing Portainer's configuration
#
volumes:
  portainer_data:

services:

  # Configure Portainer service
  #
  portainer:
    image: portainer/portainer
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - portainer_data:/data
    command: -H unix:///var/run/docker.sock
    restart: always
    networks:
      - local    

  # Configure NGinx proxy service
  #
  nginx:
    build: docker/
    ports:
      - "80:80"
    depends_on:
      - portainer    
    restart: always
    networks:
      - local

# Link network to the docker bridge driver
#
networks:
  local:
    driver: bridge

Dockerfile

FROM nginx:alpine
MAINTAINER Julien MERCIER <devci@j3ck3l.me>

# Remove existing configuration
RUN rm -v /etc/nginx/conf.d/*

# Insert our portainer conf
COPY portainer.conf /etc/nginx/conf.d/portainer.conf

portainer.conf

upstream portainer {
    server portainer:9000;
}

server {
  listen 80;

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