Ansible

Ansible - Install a list of packages on Ubuntu

vi install_packages.yml

---
- hosts: all
  become: yes
  tasks:
    - name: Update apt cache and install some apps
      apt:
        name: "{{ item }}"
        update_cache: yes
      loop:
        - vim
        - curl
        - unzip
        - htop
        - mc
        - screen
        - mtr
        - tmux
        - git
        - build-essential
        - zsh
        - net-tools
        - mlocate
        - cifs-utils
        - nfs-common
        - apt-transport-https
        - ca-certificates
        - software-properties-common

ansible-playbook -K install_packages.yml

Allow or Deny SSH access only to a list of users or groups

vi /etc/ssh/sshd_config Allow access for users: AllowUsers user1 user2 user3 Allow access for groups: AllowGroups group_name You could also use: DenyUsers user1 user2 user3 DenyGroups group_nanme Restart SSH Service: systemctl restart sshd

Install Ruby with Rbenv on Ubuntu

Ansible - Install PostgreSQL on Ubuntu

vi install_postgresql.yml --- - hosts: all become: yes tasks: - name: Install required packages apt: name: "{{ item }}" update_cache: yes loop: - wget - ca-certificates - name: PostgreSQL Key shell: wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -

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