微服务 API 网关 kong 的爬坑之路

sudo yum update -y
sudo yum install -y wget
wget https://bintray.com/kong/kong-rpm/rpm -O bintray-kong-kong-rpm.repo
export major_version=`grep -oE '[0-9]+\.[0-9]+' /etc/redhat-release | cut -d "." -f1`
sed -i -e 's/baseurl.*/&\/centos\/'$major_version''/ bintray-kong-kong-rpm.repo
sudo mv bintray-kong-kong-rpm.repo /etc/yum.repos.d/
sudo yum update -y
sudo yum install -y kong

yum install -y https://download.postgresql.org/pub/repos/yum/reporpms/EL-7-x86_64/pgdg-redhat-repo-latest.noarch.rpm
yum install -y postgresql11-server
/usr/pgsql-11/bin/postgresql-11-setup initdb
systemctl enable postgresql-11
systemctl start postgresql-11

# 登录psql
sudo su postgres
psql
# 创建数据库，官方默认无密码，此处我使用密码
# CREATE USER kong; CREATE DATABASE kong OWNER kong;
CREATE USER kong with password 'kong';
CREATE DATABASE kong OWNER kong; 
grant all privileges on database kong to kong;
#此时也要把postgres的密码设置一下，不然待会开启md5认证之后，这个用户没有密码就不能登录了。
#然后我们需要复原配置重启数据库才可以。所以我们要把密码设置一下。
ALTER USER postgres WITH PASSWORD 'postgres';
# 修改安全配置（为了使用密码登录）
vim /var/lib/pgsql/11/data/pg_hba.conf
# METHOD指定如何处理客户端的认证。常用的有ident，md5，password，trust，reject
# ident是Linux下PostgreSQL默认的local认证方式，凡是能正确登录服务器的操作系统用户（注：不是数据库用户）就能使用本用户映射的数据库用户不需密码登录数据库。
# md5是常用的密码认证方式，如果你不使用ident，最好使用md5。密码是以md5形式传送给数据库，较安全，且不需建立同名的操作系统用户。
# password是以明文密码传送给数据库，建议不要在生产环境中使用。
# trust是只要知道数据库用户名就不需要密码或ident就能登录，建议不要在生产环境中使用。
# reject是拒绝认证。
# 将peer改为md5（）
# "local" is for Unix domain socket connections only
local   all             all                                     md5
# IPv4 local connections:
host    all             all             127.0.0.1/32            ident
# IPv6 local connections:
host    all             all             ::1/128                 ident
# 重启psql
systemctl restart postgresql-11
# 登录postgre
psql -U kong
# 输入密码
# 查看帮助
\h
# 退出
\q

# 这里需要提前配置kong配置文件，默认/etc/kong/kong.conf.default
cp /etc/kong/kong.conf.default /etc/kong/kong.conf
# 修改里面的数据库配置，写入用户、密码、数据库、端口等信息
vim /etc/kong/kong.conf
[root@kong-server software]# egrep -v "^#|^$|^[[:space:]]+#" /etc/kong/kong.conf
database = postgres             # Determines which of PostgreSQL or Cassandra
pg_host = 127.0.0.1             # Host of the Postgres server.
pg_port = 5432                  # Port of the Postgres server.
pg_timeout = 5000               # Defines the timeout (in ms), for connecting,
pg_user = kong                  # Postgres user.
pg_password = kong                # Postgres user's password.
pg_database = kong              # The database name to connect to.	
# Kong migrations
#kong migrations bootstrap [-c /path/to/kong.conf]
[root@kong-server software]# kong migrations bootstrap -c /etc/kong/kong.conf
Bootstrapping database...
migrating core on database 'kong'...
core migrated up to: 000_base (executed)
core migrated up to: 001_14_to_15 (executed)
core migrated up to: 002_15_to_1 (executed)
core migrated up to: 003_100_to_110 (executed)
core migrated up to: 004_110_to_120 (executed)
core migrated up to: 005_120_to_130 (executed)
migrating hmac-auth on database 'kong'...
hmac-auth migrated up to: 000_base_hmac_auth (executed)
hmac-auth migrated up to: 001_14_to_15 (executed)
migrating oauth2 on database 'kong'...
oauth2 migrated up to: 000_base_oauth2 (executed)
oauth2 migrated up to: 001_14_to_15 (executed)
oauth2 migrated up to: 002_15_to_10 (executed)
migrating jwt on database 'kong'...
jwt migrated up to: 000_base_jwt (executed)
jwt migrated up to: 001_14_to_15 (executed)
migrating basic-auth on database 'kong'...
basic-auth migrated up to: 000_base_basic_auth (executed)
basic-auth migrated up to: 001_14_to_15 (executed)
migrating key-auth on database 'kong'...
key-auth migrated up to: 000_base_key_auth (executed)
key-auth migrated up to: 001_14_to_15 (executed)
migrating rate-limiting on database 'kong'...
rate-limiting migrated up to: 000_base_rate_limiting (executed)
rate-limiting migrated up to: 001_14_to_15 (executed)
rate-limiting migrated up to: 002_15_to_10 (executed)
rate-limiting migrated up to: 003_10_to_112 (executed)
migrating acl on database 'kong'...
acl migrated up to: 000_base_acl (executed)
acl migrated up to: 001_14_to_15 (executed)
migrating response-ratelimiting on database 'kong'...
response-ratelimiting migrated up to: 000_base_response_rate_limiting (executed)
response-ratelimiting migrated up to: 001_14_to_15 (executed)
response-ratelimiting migrated up to: 002_15_to_10 (executed)
migrating session on database 'kong'...
session migrated up to: 000_base_session (executed)
27 migrations processed
27 executed
Database is up-to-date
#迁移过程中可能会报错，如果包认证问题，做如下修改
vim /var/lib/pgsql/11/data/pg_hba.conf 
 #host    all             all             127.0.0.1/32            ident
host    all             all             127.0.0.1/32            md5
#原因是postgresql设置不允许本地主机访问。（127.0.0.1允许IP连接，而不是通过套接字）

#kong start [-c /path/to/kong.conf]
[root@kong-server software]# kong start -c /etc/kong/kong.conf
Kong started
[root@kong-server software]# kong  health
nginx.......running
Kong is healthy at /usr/local/kong
[root@kong-server software]# netstat -lntup
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:8444          0.0.0.0:*               LISTEN      31050/nginx: master
tcp        0      0 0.0.0.0:8000            0.0.0.0:*               LISTEN      31050/nginx: master
tcp        0      0 127.0.0.1:8001          0.0.0.0:*               LISTEN      31050/nginx: master
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1453/sshd
tcp        0      0 127.0.0.1:5432          0.0.0.0:*               LISTEN      30638/postmaster
tcp        0      0 0.0.0.0:8443            0.0.0.0:*               LISTEN      31050/nginx: master
tcp6       0      0 ::1:5432                :::*                    LISTEN      30638/postmaster
udp        0      0 0.0.0.0:68              0.0.0.0:*                           780/dhclient
udp        0      0 172.16.16.16:123        0.0.0.0:*                           3006/ntpd
udp        0      0 127.0.0.1:123           0.0.0.0:*                           3006/ntpd
udp6       0      0 fe80::5054:ff:fe94::123 :::*                                3006/ntpd
udp6       0      0 ::1:123                 :::*                                3006/ntpd
[root@kong-server software]# curl http://localhost:8001
......
......
......
#停止:
kong stop
#重新加载：
kong reload

yum -y install git
cd /data/software && wget https://npm.taobao.org/mirrors/node/v10.16.2/node-v10.16.2-linux-x64.tar.xz
tar -xf node-v10.16.2-linux-x64.tar.xz 
mv node-v10.16.2-linux-x64 node
# 修改为root的权限
chown root.root node -R
cat > /etc/profile.d/node.sh << EOF
export PATH=\$PATH:/data/software/node/bin
EOF
source /etc/profile.d/node.sh
node -v
# 安装插件
#为了在安装插件的时候速度快一点，可以更换一下镜像源
npm config set registry https://registry.npm.taobao.org
#配置后可通过下面方式来验证是否成功
npm config get registry
# 或
npm info express
#如果想还原npm仓库地址的话，只需要在把地址配置成npm镜像就可以了
npm config set registry https://registry.npmjs.org/
#有的插件还需要gcc环境，需要提前安装
yum install gcc* -y
#开始安装插件
npm install -g glup
npm install -g bower
npm install -g sails
npm install -g node-gyp
npm install -g grunt-sass
npm install -g node-sass
npm install sails-postgresql  #用来支持postgresql数据库
#安装插件的时候，可能还会有问题，gyp ERR! stack Error: EACCES: permission denied, mkdir。
#如果有这样的问题 在安装插件的命令后面加上 --unsafe-perm
#就是说 npm 出于安全考虑不支持以 root 用户运行，即使你用 root 用户身份运行了，npm 会自动转成一个叫 nobody 的用户来运行，
#而这个用户几乎没有任何权限。这样的话如果你脚本里有一些需要权限的操作，比如写文件（尤其是写 /root/.node-gyp），就会崩掉了。
#为了避免这种情况，要么按照 npm 的规矩来，专门建一个用于运行 npm 的高权限用户；要么加 --unsafe-perm 参数，
#这样就不会切换到 nobody 上，运行时是哪个用户就是哪个用户，即是 root。

git clone https://github.com/pantsel/konga.git
cd konga
npm install konga
#使用postgresql,创建konga用到的数据库
#需要使用postgres用户登录，要输入前文设置的密码
sudo su postgres
psql
CREATE USER konga with password 'konga';
CREATE DATABASE konga OWNER konga; 
grant all privileges on database konga to konga;

cd konga/
cp config/local_example.js config/local.js
# 配置默认数据库
vi config/local.js
models: {
    connection: process.env.DB_ADAPTER || 'localDiskDb',
},
# 改成
models: {
    connection: process.env.DB_ADAPTER || 'postgres', // 这里可以用‘mysql’，‘mongo’，‘sqlserver’，‘postgres’
},
# 保存
# 修改数据库默认配置
vi connections.js
  postgres: {
    adapter: 'sails-postgresql',
    url: process.env.DB_URI,
    host: process.env.DB_HOST || 'localhost',
    user:  process.env.DB_USER || 'konga',
    password: process.env.DB_PASSWORD || 'konga',
    port: process.env.DB_PORT || 5432,
    database: process.env.DB_DATABASE ||'konga',
    // schema: process.env.DB_PG_SCHEMA ||'public',
    poolSize: process.env.DB_POOLSIZE || 10,
    ssl: process.env.DB_SSL ? true : false // If set, assume it's true
  },
  
# 保存
# 启动
cd ../
npm start
nfo:
info:                .-..-.
info:
info:    Sails              <|    .-..-.
info:    v0.12.14            |\
info:                       /|.\
info:                      / || \
info:                    ,'  |'  \
info:                 .-'.-==|/_--'
info:                 `--'-------'
info:    __---___--___---___--___---___--___
info:  ____---___--___---___--___---___--___-__
info:
info: Server lifted in `/data/software/konga`
info: To see your app, visit http://0.0.0.0:1338
info: To shut down Sails, press <CTRL> + C at any time.
# pm2 管理
npm install -g pm2 
cd konga
pm2 start app.js --name konga
pm2 logs

1、 pm2需要全局安装

 npm install -g pm2

2、进入项目根目录

 启动进程/应用 pm2 start bin/www 或 pm2 start app.js

 重命名进程/应用 pm2 start app.js --name wb123

 添加进程/应用 watch pm2 start bin/www --watch

 结束进程/应用 pm2 stop www

 结束所有进程/应用 pm2 stop all

 删除进程/应用 pm2 delete www

 删除所有进程/应用 pm2 delete all

 列出所有进程/应用 pm2 list

 查看某个进程/应用具体情况 pm2 describe www

 查看进程/应用的资源消耗情况 pm2 monit

 查看pm2的日志 pm2 logs

 若要查看某个进程/应用的日志,使用 pm2 logs www

 重新启动进程/应用 pm2 restart www

 重新启动所有进程/应用 pm2 restart all