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EX 200

Lesson 2 - Understanding and Using Essential Tools on RHEL 8

Accessing Linux Systems

• ssh-keygen - generate ssh key
• ssh-copy-id web_user@monolith - copy ssh key on remote host
• ssh web_user@monolith cat /etc/redhat-release - get release info via ssh
• scp web_user@monolith:/home/web_user/*.gz . - copy any tar files from remote machine on your working directory
• sftp db_user@monolith - access remote host via secure FTP protocol
• mget *.gz - grab all files via sftp with .gz extension

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#docker-compose file with server-agent deployment. 
version: "2"
services:
  teamcity-server:
    image: jetbrains/teamcity-server:latest
    container_name: teamcity-server
    volumes:
      - ./data/teamcity_server/datadir:/data/teamcity_server/datadir
      - ./data/teamcity_server/logs:/opt/teamcity/logs
    ports:

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• Step 1. Get Ubuntu Server with Free Tier eligible option.
• Step 2. Set up everything and access your server
• Step 3. Run following commands to setup xRDP

sudo apt update &&  sudo apt upgrade

sudo sed -i 's/^PasswordAuthentication no/PasswordAuthentication yes/' /etc/ssh/sshd_config

sudo systemctl restart sshd

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version: '3.3'
services:
  server:
    container_name: teamcity_server
    image: 'jetbrains/teamcity-server:latest'
    networks:
      - LAN1
    volumes:
      - 'VLM1:/data/teamcity_server/datadir'
      - 'VLM1:/opt/teamcity/logs'

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Creating a Base Boxes

https://www.vagrantup.com/docs/boxes/base.html

Creating a Hyper-V Base Boxes

https://www.vagrantup.com/docs/hyperv/boxes.html

Box File Format

https://www.vagrantup.com/docs/boxes/format.html

Building A Hyper-V Windows 10 Vagrant Box