Install Consul Server

Published: by Creative Commons Licence

Preparation

vm1 192.168.33.13 vm1.roomit.tech

vm2 192.168.33.14 vm2.roomit.tech

Download Package:

# wget https://releases.hashicorp.com/consul/1.7.1/consul_1.7.1_linux_amd64.zip

Install Tools Support:

# apt install unzip nginx

Setting Host set this alias dns on your host, vm1, vm2, and vm3

# echo -e "
192.168.33.10 vm1.roomit.tech vm1\n
192.168.33.11 vm2.roomit.tech vm2 \n
192.168.33.12 vm3.roomit.tech vm3" >> /etc/hosts

notes: in this tutorial we only using one server vm1

Create user consul

# useradd consul
# passwd consul

Create Heirarchy:

/opt/consule-server/
├── bin
├── cfg
└── data

# mkdir -p /opt/consule-server/{bin,cfg,data}
# chown consul:consul -R /opt/consule-server

Installation

Extract and save path binary to environment

# unzip consul_1.7.1_linux_amd64.zip -d /opt/consule-server/bin/
# chmod +x /opt/consule-server/bin/consul
# echo "export PATH=$PATH:/opt/consule-server/bin" >> ~/.bashrc 
# source ~/.bashrc

Configuration

Generate Keygen

# consul keygen

myjwslBVOrz3amfAJuyLVxGSqcsvPGX+cmZIgZVRK7U=

Create file and config in /opt/consule-server/cfg/config.json

{
"bootstrap": true,
"server": true,
"log_level": "DEBUG",
"enable_syslog": true,
"datacenter": "Tendean",
"addresses" : {
"http": "127.0.0.1"
},
"bind_addr": "192.168.33.10",
"node_name": "vm1",
"data_dir": "/opt/consule-server/data/",
"primary_datacenter": "Tendean",
"acl_default_policy": "allow",
"encrypt": "myjwslBVOrz3amfAJuyLVxGSqcsvPGX+cmZIgZVRK7U="
}

Create virtualhost /etc/nginx/site-available/consule

server
{
  listen 80 ;
  server_name vm1.roomit.tech;
  root /opt/consule-server/cfg/ui;
      location / {
        proxy_pass http://127.0.0.1:8500;
        proxy_set_header   X-Real-IP $remote_addr;
        proxy_set_header   Host      $http_host;
    }
}

Enable and Check Config

# ln -sf /etc/nginx/sites-available/consule  /etc/nginx/sites-enabled/
# nginx -t

Create Systemd Init /lib/systemd/system/consul.service

[Unit]
Description=consul agent
Requires=network-online.target
After=network-online.target

[Service]
Type=simple
User=consul
Group=consul
LimitNOFILE=1024
PermissionsStartOnly=true
Environment="OPTIONS=-server -ui -client 192.168.33.10 -advertise 192.168.33.10"   
ExecStart=/opt/consule-server/bin/consul agent $OPTIONS  -config-dir /opt/consule-server/cfg/
ExecReload=/bin/kill -HUP $MAINPID
KillSignal=SIGINT

[Install]
WantedBy=multi-user.target

Reload

# systemctl daemon-reload

Running Nginx

# systemctl start nginx

Access Web

http://vm1.roomit.tech

DashboarConsul