Kong Gateway

Kong Gateway is an open core project that offers many of the traditional API Management features. 
 Minimal Docker Compose for Kong 
 version: "3.0"

services:

 kong:
 env_file: .env
 image: kong/kong-gateway:3.0.1.0
 environment:
 - KONG_DATABASE=postgres
 - KONG_PG_HOST=db
 - KONG_PG_DATABASE=kong
 - KONG_PG_USER=postgres
 - KONG_PG_PASSWORD=${POSTGRES_PASSWORD}
 - KONG_ADMIN_LISTEN=0.0.0.0:8001
 - KONG_ADMIN_GUI_URL=http://localhost:8002
 ports:
 - 8000:8000 
 - 8443:8443 
 - 8001:8001 
 - 8444:8444 
 - 8002:8002 
 - 8445:8445 
 - 8003:8003 
 - 8004:8004 

 db:
 env_file: .env
 image: postgres
 restart: always
 volumes:
 - ./postgres:/var/lib/postgresql/data 
 ports:
 - 5432:5432
 
 adminer:
 env_file: .env
 image: adminer
 restart: always
 ports:
 - 8080:8080

 
 And accompanying .env file: 
 POSTGRES_PASSWORD=example
KONG_PASSWORD="supersecret123"
 
 Docker Compose Installation 
 The official documentation for the project provides a walkthrough for docker installation here 
 Seed the Database 
 docker-compose run kong kong migrations bootstrap 
 Starting Kong 
 docker-compose up -d kong 
 Kong Config and Environment Variables 
 Kong normally reads a config file called kong.conf - an overview of valid configuration settings/directives can be found here 
 The docker image can read these variables from the environment. Simply copy the name of the thing, upercase it and prefix with KONG_ e.g. prefix becomes KONG_PREFIX .