CentOS-7安装consul

心已赠人 2022-03-26 09:46 335阅读 0赞

## 前期准备 ##

### 配置hosts ###

> 192.168.245.227 iot-node1 \# server节点  
> 192.168.245.228 iot-node2 \# server节点  
> 192.168.245.229 iot-node3 \# server节点

### 安装工具包 ###

> sudo yum install -y zip unzip

### 关闭防火墙 ###

> sudo systemctl stop firewalld

## 离线安装consul ##

### 下载地址 ###

> [https://releases.hashicorp.com/consul/1.2.2/][https_releases.hashicorp.com_consul_1.2.2]

### 安装包 ###

> consul\_1.2.2\_linux\_amd64.zip

### 安装consul ###

1）进入到consul\_1.2.2\_linux\_amd64.zip所在目录

执行解压命令：

> sudo unzip consul\_1.2.2\_linux\_amd64.zip

2）移动consul到/usr/bin/，并授予运行权限

> sudo mv consul /usr/bin/

> sudo chmod uog+x /usr/bin/consul

3）创建文件夹并授权

> sudo mkdir -p /opt/consul/data

> sudo mkdir -p /opt/consul/conf

> sudo chmod uog+rw /opt/consul/data

4）编辑文件/etc/default/consul

> sudo vi /etc/default/consul

/etc/default/consul内容：

> CONSUL\_FLAGS="-ui -disable-host-node-id -config-file  
> /opt/consul/conf/server.json"

### 配置consul ###

1）配置consul-node1

> sudo vi /opt/consul/conf/server.json

/opt/consul/conf/server.json内容：

> \{  
> “datacenter”: “dc1”,  
> “data\_dir”: “/opt/consul/data”,  
> “log\_level”: “INFO”,  
> “node\_name”: “consul-node1”,  
> “server”: true,  
> “bootstrap\_expect”: 3,  
> “bind\_addr”: “192.168.245.227”,  
> “client\_addr”: “192.168.245.227”,  
> “retry\_join”: \[“192.168.245.227”,  
> “192.168.245.228”,  
> “192.168.245.229”\],  
> “retry\_interval”: “30s”,  
> “enable\_debug”: false,  
> “rejoin\_after\_leave”: true,  
> “start\_join”: \[“192.168.245.227”,  
> “192.168.245.228”,  
> “192.168.245.229”\],  
> “enable\_syslog”: true,  
> “syslog\_facility”: “local0”  
> \}

2）配置consul-node2

> sudo vi /opt/consul/conf/server.json

/opt/consul/conf/server.json内容：

> \{  
> “datacenter”: “dc1”,  
> “data\_dir”: “/opt/consul/data”,  
> “log\_level”: “INFO”,  
> “node\_name”: “consul-node2”,  
> “server”: true,  
> “bootstrap\_expect”: 3,  
> “bind\_addr”: “192.168.245.228”,  
> “client\_addr”: “192.168.245.228”,  
> “retry\_join”: \[“192.168.245.227”,  
> “192.168.245.228”,  
> “192.168.245.229”\],  
> “retry\_interval”: “30s”,  
> “enable\_debug”: false,  
> “rejoin\_after\_leave”: true,  
> “start\_join”: \[“192.168.245.227”,  
> “192.168.245.228”,  
> “192.168.245.229”\],  
> “enable\_syslog”: true,  
> “syslog\_facility”: “local0”  
> \}

3）配置consul-node3

> sudo vi /opt/consul/conf/server.json

/opt/consul/conf/server.json内容：

> \{  
> “datacenter”: “dc1”,  
> “data\_dir”: “/opt/consul/data”,  
> “log\_level”: “INFO”,  
> “node\_name”: “consul-node3”,  
> “server”: true,  
> “bootstrap\_expect”: 3,  
> “bind\_addr”: “192.168.245.229”,  
> “client\_addr”: “192.168.245.229”,  
> “retry\_join”: \[“192.168.245.227”,  
> “192.168.245.228”,  
> “192.168.245.229”\],  
> “retry\_interval”: “30s”,  
> “enable\_debug”: false,  
> “rejoin\_after\_leave”: true,  
> “start\_join”: \[“192.168.245.227”,  
> “192.168.245.228”,  
> “192.168.245.229”\],  
> “enable\_syslog”: true,  
> “syslog\_facility”: “local0”  
> \}

### 配置Syslog日志 ###

1）创建日志存放目录,并授权

> sudo mkdir /var/log/consul

> sudo chmod uog+rwx /var/log/consul

> 2）修改rsyslog默认配置文件

> sudo vi /etc/rsyslog.d/50-default.conf

/etc/rsyslog.d/50-default.conf添加内容：

> consul.\* /var/log/consul/consul.log

3）创建日志轮循规则

> sudo tee /etc/logrotate.d/consul <<-‘EOF’  
> /var/log/consul/\*log \{  
> missingok  
> compress  
> notifempty  
> daily  
> rotate 5  
> create 0600 root root  
> \}  
> EOF

4）重启rsyslog

> sudo systemctl daemon-reload

> sudo systemctl restart rsyslog

### 注册consul服务 ###

> sudo vi /usr/lib/systemd/system/consul.service

/usr/lib/systemd/system/consul.service内容：

> \[Unit\]  
> Description=Consul service discovery agent  
> Requires=network-online.target  
> After=network-online.target  
> \[Service\]  
> User=root  
> Type=notify  
> Environment=GOMAXPROCS=2  
> EnvironmentFile=-/etc/default/consul  
> ExecStart=/usr/bin/consul agent $CONSUL\_FLAGS  
> ExecReload=/bin/kill -HUP $MAINPID  
> KillSignal=SIGTERM  
> Restart=on-failure  
> TimeoutStopSec=5  
> \[Install\]  
> WantedBy=multi-user.target

### 启动/停止/查看consul ###

> sudo systemctl start consul  
> sudo systemctl stop consul  
> sudo systemctl status consul

### 设置开机启动 ###

> sudo systemctl enable consul

[https_releases.hashicorp.com_consul_1.2.2]: https://releases.hashicorp.com/consul/1.2.2/