kong 的基础使用

安装

version: '3'

services:

  kong-database:
    image: postgres:9.6
    container_name: kong-database
    ports:
      - 5432:5432
    environment:
      - POSTGRES_USER=kong
      - POSTGRES_DB=kong
      - POSTGRES_PASSWORD=kong
    networks:
      - kong-net
    volumes:
      - "db-data-kong-postgres:/var/lib/postgresql/data"

  kong-migrations:
    image: kong
    environment:
      - KONG_DATABASE=postgres
      - KONG_PG_HOST=kong-database
      - KONG_PG_PASSWORD=kong
      - KONG_CASSANDRA_CONTACT_POINTS=kong-database
    command: kong migrations bootstrap
    restart: on-failure
    networks:
      - kong-net
    depends_on:
      - kong-database

  kong:
    image: kong
    container_name: kong
    environment:
      - LC_CTYPE=en_US.UTF-8
      - LC_ALL=en_US.UTF-8
      - KONG_DATABASE=postgres
      - KONG_PG_HOST=kong-database
      - KONG_PG_USER=kong
      - KONG_PG_PASSWORD=kong
      - KONG_CASSANDRA_CONTACT_POINTS=kong-database
      - KONG_PROXY_ACCESS_LOG=/dev/stdout
      - KONG_ADMIN_ACCESS_LOG=/dev/stdout
      - KONG_PROXY_ERROR_LOG=/dev/stderr
      - KONG_ADMIN_ERROR_LOG=/dev/stderr
      - KONG_ADMIN_LISTEN=0.0.0.0:8001, 0.0.0.0:8444 ssl
    restart: on-failure
    ports:
      - 8000:8000
      - 8443:8443
      - 8001:8001
      - 8444:8444
    links:
      - kong-database:kong-database
    networks:
      - kong-net
    depends_on:
      - kong-migrations

  konga:
    image: pantsel/konga
    ports:
      - 1337:1337
    links:
      - kong:kong
    container_name: konga
    environment:
      - NODE_ENV=production

volumes:
  db-data-kong-postgres:

networks:
  kong-net:
    external: false

测试接口地址

http://192.168.452:9999

原始nginx配置

upstream passportUpstream {
        server localhost:9999 weight=100;
}
server {
        listen 8000;
        location /hello {
        proxy_pass http://passportUpstream;
        }
}

使用API进行配置

使用 curl 命令, 仅作为例子

# 配置 upstream 
curl -X POST http://localhost:8001/upstreams 
    --data "name=passportUpstream" 

# 配置 target 
curl -X POST http://localhost:8001/upstreams/passport/targets 
    --data "target=localhost:8080" --data "weight=100" 

# 配置 service 
curl -X POST http://localhost:8001/services 
    --data "name=getUserInfo" --data "host=passportUpstream" 

# 配置 route 
curl -X POST http://localhost:8001/routes 
    --data "paths[]=/user"
    --data "service.id=8695cc65-16c1-43b1-95a1-5d30d0a50409" 

curl -X POST http://localhost:8001/routes 
    --data "hosts[]=*.example.com,test.com,*.abc.com" 
    --data "service.id=8695cc65-16c1-43b1-95a1-5d30d0a50409" 

使用httpie 命令

# 配置 upstream 
echo '{"name":"passportUpstream"}' | http POST http://localhost:8001/upstreams

# 配置 target 
echo '{"target":"192.168.4.52:9999","weight":100}' | http POST http://localhost:8001/upstreams/passportUpstream/targets

# 配置 service 
echo '{"name":"getLogs","host":"passportUpstream"}' | http POST http://localhost:8001/services

# 配置 route 获取上一步返回的serivce id 作为参数传入
echo '{"paths":["/user"],"service":{"id":"1e6da5de-be0b-49a4-9a6b-764c2a03b906"}}' |
http POST http://localhost:8001/routes

对应关系

Upstream : target -> 1:n
Service:Upstream -> 1:1 or 1:0 (Service 可以直接指向具体的Target，相当于不做负载均衡)
Service : Route -> 1:n

测试

echo '{"message":"2021-10-20-10:18"}' | http POST  http://localhost:8000/user/logs -v

结果

POST /user/logs HTTP/1.1
Accept: application/json, */*;q=0.5
Accept-Encoding: gzip, deflate, br
Connection: keep-alive
Content-Length: 31
Content-Type: application/json
Host: localhost:8000
User-Agent: HTTPie/2.5.0

{
    "message": "2021-10-20-10:18"
}

输出配置

获取主机IP

ip addr show docker0
5: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
    link/ether 02:42:ce:e4:26:c7 brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever

# 配置 upstream 
echo '{"name":"passportUpstream"}' | http POST http://localhost:8001/upstreams

# 配置 target 
echo '{"target":"192.168.4.52:9999","weight":100}' | http POST http://localhost:8001/upstreams/passportUpstream/targets

# 配置 service 
echo '{"name":"admin-api","host":"localhost","port":"8001"}' | http POST http://localhost:8001/services

# 配置 route 获取上一步返回的serivce id 作为参数传入
echo '{"paths":["/admin-api"],"service":{"id":"81ac656d-cd6e-42c8-94d9-a5a85effa14a"}}' |
http POST http://localhost:8001/admin-api/routes