Kong入门学习实践(2)实验环境搭建

最近在学习Kong网关，因此根据老习惯，我会将我的学习过程记录下来，一来体系化整理，二来作为笔记供将来翻看。由于我司会直接使用Kong企业版，学习过程中我会使用Kong开源版。

本篇，我们学习如何快速搭建一个Kong实验环境。

搭建方式

目前，我们可以选择多种部署方式，包括：宿主机部署、Docker部署、Kubernetes部署以及混合部署。

这里，我们的目的是学习实践，因此选择Docker部署，为了方便，我们选择基于docker compose的一键部署。首先，你需要安装docker engine及docker-compose：

# sudo curl -L "https://github.com/docker/compose/releases/download/1.28.2/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
# sudo chmod +x /usr/local/bin/docker-compose
# docker-compose --version

All-In-One快速部署

我们需要准备一个yml模板文件：

version: "3.8"

volumes:
  kong_data: {}
  
networks:
 kong-net:

services:
  #######################################
  # Postgres: The database used by Kong
  #######################################
  kong-database:
    image: postgres:10
    container_name: kong-postgres
    restart: on-failure
    networks:
      - kong-net
    volumes:
      - kong_data:/var/lib/postgresql/data
    environment:
      POSTGRES_USER: kong
      POSTGRES_PASSWORD: ${KONG_PG_PASSWORD:-kong}
      POSTGRES_DB: kong
    ports:
      - "5432:5432"
    healthcheck:
      test: ["CMD", "pg_isready", "-U", "kong"]
      interval: 30s
      timeout: 30s
      retries: 3

  #######################################
  # Kong database migration
  #######################################
  kong-migration:
    image: ${KONG_DOCKER_TAG:-kong:latest}
    command: kong migrations bootstrap
    networks:
      - kong-net
    restart: on-failure
    environment:
      KONG_DATABASE: postgres
      KONG_PG_HOST: kong-database
      KONG_PG_DATABASE: kong
      KONG_PG_USER: kong
      KONG_PG_PASSWORD: ${KONG_PG_PASSWORD:-kong}
    depends_on:
      - kong-database

  #######################################
  # Kong: The API Gateway
  #######################################
  kong:
    image: ${KONG_DOCKER_TAG:-kong:latest}
    restart: on-failure
    networks:
      - kong-net
    environment:
      KONG_DATABASE: postgres
      KONG_PG_HOST: kong-database
      KONG_PG_DATABASE: kong
      KONG_PG_USER: kong
      KONG_PG_PASSWORD: ${KONG_PG_PASSWORD:-kong}
      KONG_PROXY_LISTEN: 0.0.0.0:8000
      KONG_PROXY_LISTEN_SSL: 0.0.0.0:8443
      KONG_ADMIN_LISTEN: 0.0.0.0:8001
    depends_on:
      - kong-database
    healthcheck:
      test: ["CMD", "kong", "health"]
      interval: 10s
      timeout: 10s
      retries: 10
    ports:
      - "8000:8000"
      - "8001:8001"
      - "8443:8443"
      - "8444:8444"

  #######################################
  # Konga database prepare
  #######################################
  konga-prepare:
    image: pantsel/konga:latest
    command: "-c prepare -a postgres -u postgresql://kong:${KONG_PG_PASSWORD:-kong}@kong-database:5432/konga"
    networks:
      - kong-net
    restart: on-failure
    depends_on:
      - kong-database

  #######################################
  # Konga: Kong GUI
  #######################################
  konga:
    image: pantsel/konga:latest
    restart: always
    networks:
        - kong-net   
    environment:
      DB_ADAPTER: postgres
      DB_URI: postgresql://kong:${KONG_PG_PASSWORD:-kong}@kong-database:5432/konga
      NODE_ENV: production
    depends_on:
      - kong-database
    ports:
      - "1337:1337"