Cara Install Chef Infra pada AlmaLinux / CentOS 8 / Rocky Linux / Redhat 8

“Cara Install Chef Infra pada AlmaLinux / CentOS 8 / Rocky Linux / Redhat 8”

Pengantar

Chef infra adalah salah satu alat Infrastruktur sumber terbuka sebagai Kode (IAC) populer yang digunakan dalam konfigurasi, administrasi, dan penyebaran sumber daya server di seluruh jaringan. CHEF ditulis dalam bahasa Ruby dan Erlang dan didistribusikan di bawah Lisensi Apache 2.0.

Chef architecture

Persiapan

On all the 3 servers

sudo hostnamectl set-hostname chef-server.example.com --static

sudo dnf -y install git vim wget curl bash-completion
sudo dnf -y update
sudo reboot

Setting NTP

• Install NTP

sudo dnf install chrony -y
sudo systemctl start chronyd
sudo systemctl enable chronyd

Install Chef Infra

• install wget

sudo yum -y install wget

• download chef

wget https://packages.chef.io/files/stable/chef-server/${VER}/el/8/chef-server-core-${VER}-1.el7.x86_64.rpm

• Install chef

dnf localinstall chef-server-core-${VER}-1.el7.x86_64.rpm

• Configurasi Chef

sudo chef-server-ctl reconfigure

Setting Firewall

sudo firewall-cmd --permanent --add-service={http,https}
sudo firewall-cmd --reload

Buat Admin User

• Buat admin

chef-server-ctl user create USERNAME FIRST_NAME [MIDDLE_NAME] LAST_NAME EMAIL PASSWORD

USERNAME="chefadmin"
FIRST_NAME="Chef"
LAST_NAME="Administrator"
EMAIL="chefadmin@games.com"
PASSWORD="Passw0rd"
KEY_PATH="/root/chefadmin.pem"

sudo chef-server-ctl user-create ${USERNAME} ${FIRST_NAME} ${LAST_NAME} ${EMAIL} ${PASSWORD} -f ${KEY_PATH}

• Cek list User

sudo chef-server-ctl user-list

• Buat Organisasi

sudo chef-server-ctl org-create techviewleo 'Techviewleo, Inc.' \
--association_user chefadmin \
--filename /root/techviewleo-validator.pem

• Cek list organisasi

$ sudo chef-server-ctl org-list

• Cek RSA key

sudo find /root -name "*.pem"

• Install Chef Manage

sudo chef-server-ctl install chef-manage 
sudo chef-server-ctl reconfigure 
sudo chef-manage-ctl reconfigure

• Akses via browser

 https://serverip/login

Install Chef Workstation

• Download chef workstation

wget https://packages.chef.io/files/stable/chef-workstation/${VER}/el/8/chef-workstation-${VER}-1.el8.x86_64.rpm

• Install

sudo yum localinstall chef-workstation-${VER}-1.el8.x86_64.rpm

• Cek version

chef --version
knife --version

• Buat chef repo

chef generate repo chef-repo

• buat directory

mkdir ~/chef-repo/.chef
cd chef-repo

• Buat RSA key

ssh-keygen -b 4096

• Upload public key ke chef server

ssh-copy-id root@192.168.205.2

• copy perm ke chef workstation

scp root@192.168.205.2:/root/*.pem ~/chef-repo/.chef/

• generate Chef cookbook

chef generate cookbook chef-first-cookbook

Configure Knife dan Bootstrap a Client Node

Pada Workstation node

• edit file

nano ~/chef-repo/.chef/config.rb

current_dir = File.dirname(__FILE__)
log_level                :info
log_location             STDOUT
node_name                'chefadmin'
client_key               "chefadmin.pem"
validation_client_name   'techviewleo-validator'
validation_key           "techviewleo-validator.pem"
chef_server_url          'https://chef-server.example.com/organizations/techviewleo'
cache_type               'BasicFile'
cache_options( :path => "#{ENV['HOME']}/.chef/checksums" )
cookbook_path            ["#{current_dir}/../cookbooks"]

• Copy SSL

cd ~/chef-repo
 knife ssl fetch

• Setting bootstrap

cd ~/chef-repo/.chef
knife bootstrap 192.168.205.13 -x root -P ***** --node-name chef-client-node

• cek node

knife node show chef-client-node

• cek dashboard

Penutup

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