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Install Unleash Feature Flag Management OSS Software on Rocky Linux

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Unleash only depend on postgresql and recommand installation method including Docker/Docker-compose and pure Node.js. I using pm2 to do the daemon job and using a postgresql server seperatedly.

Install htop and atop

Install htop and atop
sudo dnf update

sudo dnf install epel-release

sudo dnf install htop

sudo dnf install atop

Setup unleash user account

Setup unleash user account
adduser unleash

sudo su - unleash

mkdir .ssh

chmod 700 .ssh

vi .ssh/authorized_keys # and paste your public key

chmod 600 .ssh/authorized_keys

Install nginx

Install nginx
sudo dnf install nginx

Install node.js v18

Using nodesource distribution

Install node.js v18
curl -fsSL https://rpm.nodesource.com/setup_18.x | bash -

yum install -y nodejs

yum groupinstall 'Development Tools'

Install yarn

Install yarn
curl -sL https://dl.yarnpkg.com/rpm/yarn.repo | sudo tee /etc/yum.repos.d/yarn.repo

sudo yum install yarn

Disable firewall

Disable firewall
firewall-cmd --zone=public --add-port=4242/tcp

firewall-cmd --permanent --zone=public --add-port=4242/tcp

firewall-cmd --reload

systemctl restart firewalld

Install Unleash

Install Unleash
sudo su - unleash

git clone https://git.thape.com.cn/Eric-Guo/unleash.git

yarn

yarn run build

Run Unleash

Run Unleash
node eric_server.js
eric_server
const unleash = require('./unleash/dist/lib/server-impl');

 
unleash

  .start({

    db: {

      ssl: false,

      host: '172.17.1.66',

      port: 5432,

      database: 'unleash_prod',

      user: 'unleash',

      password: 'password',

    },

    server: {

      port: 4242,

      unleashUrl: 'https://unleash.thape.com.cn',

      baseUriPath: '/'

    },

    ui: { flags: { P: true } },

    versionCheck: {

      enable: false,

    },    

  })

  .then((unleash) => {

    console.log(

      `Unleash started on http://localhost:${unleash.app.get('port')}`,

    );

  });

Nginx conf

Nginx conf
upstream unleash_proxy { 

  server 127.0.0.1:4242;

}

 
server {

  listen 80;

  server_name unleash.thape.com.cn;

  

  return 301 https://unleash.thape.com.cn$request_uri;

}

 
server {

  listen 443 ssl;

  server_name unleash.thape.com.cn;

 
  ssl_certificate /etc/ssl/cert/STAR_thape_com_cn_integrated.crt;

  ssl_certificate_key /etc/ssl/private/STAR_thape_com_cn.key;

 
  client_max_body_size 10M;

 
  location / {

    proxy_pass http://unleash_proxy;

    proxy_set_header Host $host;

    proxy_set_header X-Real-IP $remote_addr;

    proxy_set_header X-Forwarded-Proto $scheme;

    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

    access_log /var/www/unleash/shared/log/nginx.access.log;

    error_log  /var/www/unleash/shared/log/nginx.error.log;

  }

 
  error_page   500 502 503 504  /50x.html;

  location = /50x.html {

    root   html;

  }

}

unleash DB backup

unleash DB backup
pg_dump unleash_production -O -x | gzip > unleash_prod_db.sql.gz

unleash import

unleash import
psql -d postgres

DROP DATABASE unleash_dev;

CREATE DATABASE unleash_dev WITH ENCODING='UTF8';

ALTER DATABASE unleash_dev SET TIMEZONE='Asia/Shanghai';

\q

gunzip < unleash_prod_db.sql.gz | psql -d unleash_dev

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