【kong初探】在mac上安装和启动

开发调优
1
  1. 使用brew安装kong
# 安装kong
brew tap kong/kong
brew install kong
~
# 查看kong，提示"env: resty: No such file or directory"
kong version
~
# 查找openresty
find / -name "openresty"
~
# 添加软链
ln /usr/local/Cellar/openresty@1.15.8.3/1.15.8.3/openresty/bin/resty /usr/local/bin/resty
~
# 继续查看kong，成功
kong version
  • 问题:当已经安装过nginx时慎用强制覆盖，使用nginx -v查看会发现是openresty下的nginx
# 强制覆盖
brew link --overwrite openresty@1.15.8.3
~
# 上一步的解决办法，先解除，再链接原来的nginx
brew unlink openresty@1.15.8.3
brew unlink nginx && brew link nginx
  1. 启动kong（两种方式：第一种依赖数据库，一般使用PgSQL；第二种不依赖数据库，配置文件kong.conf和kong.yml）
# 添加kong.conf
curl -O https://github.com/Kong/kong/blob/master/kong.conf.default
sudo mkdir -p /etc/kong
sudo cp kong.conf.default /etc/kong/kong.conf
~
# 准备PgSQL，新建用户和数据库
CREATE USER kong; 
CREATE DATABASE kong OWNER kong;
~
# kong migrations, -c是制定配置文件，可不指定
kong migrations bootstrap [-c /path/to/kong.conf]
~
# 启动kong, -c是制定配置文件，可不指定，加上--vv可查看启动的debug信息
kong start [-c /path/to/kong.conf]
~
# 验证是否启动成功
curl -i http://localhost:8001/
  • 问题1：Error: missing password, required for connect
    答：检查/etc/kong/kong.conf中PgSQL的配置，默认的host、用户名、密码等是注释掉的，修改为可连接的配置，
    记得使用上面创建的用户kong和数据库kong
  • 问题2：ulimit is currently set to "256". For better performance set it to at least "4096" using "ulimit -n"
    答：这是个警告，可以跳过，也可以根据提示调整系统参数：ulimit -n 4096
  • 问题3：
2020/08/26 21:00:38 [debug] searching for OpenResty 'nginx' executable
2020/08/26 21:00:38 [debug] /usr/local/openresty/nginx/sbin/nginx -v: 'sh: /usr/local/openresty/nginx/sbin/nginx: No such file or directory'
2020/08/26 21:00:38 [debug] OpenResty 'nginx' executable not found at /usr/local/openresty/nginx/sbin/nginx
2020/08/26 21:00:38 [debug] /opt/openresty/nginx/sbin/nginx -v: 'sh: /opt/openresty/nginx/sbin/nginx: No such file or directory'
2020/08/26 21:00:38 [debug] OpenResty 'nginx' executable not found at /opt/openresty/nginx/sbin/nginx
2020/08/26 21:00:38 [debug] nginx -v: 'nginx version: nginx/1.17.3'
2020/08/26 21:00:38 [verbose] could not start Kong, stopping services
2020/08/26 21:00:38 [verbose] stopped services

答：问题是openresty找不到nginx，经查阅资料，解决方案是：

  1. 使用sudo find / -name kong找到kong的lua脚本所在路径，我的路径：/usr/local/Cellar/kong/2.1.3/share/lua/5.1/kong
  2. 继续进入该路径下cmd/utils，找到nginx_signals.lua，先备份一下：sudo cp nginx_signals.lua nginx_signals.lua.bak
  3. 打开nginx_signals.lua，搜索nginx_search_paths，如下：
local nginx_search_paths = {
  "/usr/local/openresty/nginx/sbin",
  "/opt/openresty/nginx/sbin",
  ""
}

修改一下，注意单独装的nginx放上去是没用的，要配置openresty的nginx才行，还有–是lua的注释

 local nginx_search_paths = {
   --"/usr/local/openresty/nginx/sbin",
   --"/opt/openresty/nginx/sbin",
   "/usr/local/Cellar/openresty@1.15.8.3/1.15.8.3/openresty/nginx/sbin"
 }
  1. 再次执行kong start --vv，看是否启动成功