linux 安装kong gateway

Posted 2021-01-04 懒癌

kong 实际上就是一个ngnix，通过增加插件的方式对请求做前置处理，主要是授权

一.安装kong 服务；

https://konghq.com/install/  提供多种方式的安装，建议使用docker进行安装：

（centos的tar包的安装方式，建议使用node.js 安装 kong-dashboard）

最新版本的kong不支持kong-dashboard，所以我使用的版本是 v0.13.1

 

docker 安装 kong服务，  https://docs.konghq.com/install/docker/

1. Create a Docker network

   You will need to create a custom network to allow the containers to discover and communicate with each other. In this example kong-net is the network name, you can use any name.

   $ docker network create kong-net
   

2. Start your database

   If you wish to use a Cassandra container:

   $ docker run -d --name kong-database \\
                 --network=kong-net \\
                 -p 9042:9042 \\
                 cassandra:3
   

   If you wish to use a PostgreSQL container:

   $ docker run -d --name kong-database \\
                 --network=kong-net \\
                 -p 5432:5432 \\
                 -e "POSTGRES_USER=kong" \\
                 -e "POSTGRES_DB=kong" \\
                 postgres:9.6
   

3. Prepare your database

   Run the migrations with an ephemeral Kong container:

   $ docker run --rm \\
       --network=kong-net \\
       -e "KONG_DATABASE=postgres" \\
       -e "KONG_PG_HOST=kong-database" \\
       -e "KONG_CASSANDRA_CONTACT_POINTS=kong-database" \\
       kong:latest kong migrations up
   

   In the above example, both Cassandra and PostgreSQL are configured, but you should update the KONG_DATABASE environment variable with either cassandra or postgres.

   Note: migrations should never be run concurrently; only one Kong node should be performing migrations at a time.

4. Start Kong

   When the migrations have run and your database is ready, start a Kong container that will connect to your database container, just like the ephemeral migrations container:

   $ docker run -d --name kong \\
       --network=kong-net \\
       -e "KONG_DATABASE=postgres" \\
       -e "KONG_PG_HOST=kong-database" \\
       -e "KONG_CASSANDRA_CONTACT_POINTS=kong-database" \\
       -e "KONG_PROXY_ACCESS_LOG=/dev/stdout" \\
       -e "KONG_ADMIN_ACCESS_LOG=/dev/stdout" \\
       -e "KONG_PROXY_ERROR_LOG=/dev/stderr" \\
       -e "KONG_ADMIN_ERROR_LOG=/dev/stderr" \\
       -e "KONG_ADMIN_LISTEN=0.0.0.0:8001, 0.0.0.0:8444 ssl" \\
       -p 8000:8000 \\
       -p 8443:8443 \\
       -p 8001:8001 \\
       -p 8444:8444 \\
       kong:0.13.1-centos
   

5. Use Kong

   Kong is running:

   $ curl -i http://localhost:8001/  

 能获取到一大创json数据代表服务启动成功

 

二安装kong-dashboard   https://github.com/PGBI/kong-dashboard

 

Using Docker

# Start Kong Dashboard
docker run --rm -p 8080:8080 pgbi/kong-dashboard start --kong-url http://kong:8001

# Start Kong Dashboard on a custom port
docker run --rm -p [port]:8080 pgbi/kong-dashboard start --kong-url http://kong:8001

# Start Kong Dashboard with basic auth
docker run --rm -p 8080:8080 pgbi/kong-dashboard start \\
  --kong-url http://kong:8001 \\ 
  --basic-auth user1=password1 user2=password2

# See full list of start options
docker run --rm -p 8080:8080 pgbi/kong-dashboard start --help

 

注意点 如果kong的服务也是docker起的， kong-url的 address 应该为内网地址，localhost是无法连接的

 

如果使用了内网地址还无法连接，尝试以下代码：

1. Create bridge network
   docker network create my-net
2. Add Kong container to it
   docker network connect my-net kong
3. Provide network info when you run kong-dashboard
   docker run --rm --network my-net -p 8080:8080 pgbi/kong-dashboard start --kong-url http://kong:8001

访问 http：//your-address：8001