00-setup-env.md

user groups basic

groups

usermod -a -G wheel admin

https://superuser.com/questions/547966/whats-the-difference-between-adduser-and-useradd

ls -l $(which adduser)

add user and sudo privileges at centos

https://www.digitalocean.com/community/tutorials/how-to-create-a-sudo-user-on-centos-quickstart

adduser admin usermod -aG wheel admin passwd admin su - admin sudo ls -la /root # The first time you use sudo in a session, you will be prompted for the password of the user account sh -c "$(curl -fsSL https://raw.githubusercontent.com/Linuxbrew/install/master/install.sh)"

add user and sudo privileges at debain

https://www.digitalocean.com/community/tutorials/how-to-add-delete-and-grant-sudo-privileges-to-users-on-a-debian-vps

adduser admin usermod -aG sudo admin passwd admin su - admin sh -c "$(curl -fsSL https://raw.githubusercontent.com/Linuxbrew/install/master/install.sh)"

install ansible

yum install -y https://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

yum install -y ansible

add user with ansible

curl -LOk https://gist.githubusercontent.com/jiahut/f3106b2cfe580e4a608902e87c530381/raw/add-user-with-group.yml

ansible-playbook --connection=local -i 127.0.0.1, add-user-with-group.yml -e 'user=jazz' -e 'password=Password!'

curl -LOk https://gist.githubusercontent.com/jiahut/f3106b2cfe580e4a608902e87c530381/raw/setup-user-to-wheel-group.yml

ansible-playbook --connection=local -i 127.0.0.1, setup-user-to-wheel-group.yml -e 'sudo_user=admin'

curl -LOk https://gist.githubusercontent.com/jiahut/f3106b2cfe580e4a608902e87c530381/raw/install-docker-ce-centos.yaml

curl -LOk https://gist.githubusercontent.com/jiahut/f3106b2cfe580e4a608902e87c530381/raw/install-docker-ce-ubuntu.yaml

sudo ansible-playbook --connection=local -i 127.0.0.1, install-docker-ce-centos.yaml

usage at debian

gsed -i 's/ubuntu/debian/g' install-docker-ce-ubuntu.yaml

add-user-with-group.yml

- hosts: all
  become: yes
  tasks:
    - name: add user
      user: name="{{user}}"
            state=present
            password="{{password}}"
            shell=/bin/bash
            append=yes
            comment="add User by ansible"
    - name: Check if group exists
      shell: /usr/bin/getent group | awk -F":" '{print $1}'
      register: etc_groups

    - name: Add secondary Groups to user
      user: name="{{user}}" groups="{{item}}" append=yes
      when: '"{{item}}" in etc_groups.stdout_lines'
      with_items: 
          - wheel

install-docker-ce-centos.yaml

- hosts: all
  become: true
  tasks:
   - name: "Installing Docker Prerequisite packages"
     yum:
       name: ['yum-utils', 'device-mapper-persistent-data', 'lvm2']
       state: present
       update_cache: yes
   - name: "Configuring docker-ce repo"
     get_url:
       url: https://download.docker.com/linux/centos/docker-ce.repo
       dest: /etc/yum.repos.d/docker-ce.repo
       mode: 0644
   - name: " Installing Docker latest version"
     yum:
       name: docker-ce
       state: present
   - name: " Starting and Enabling Docker service"
     service:
       name: docker
       state: started
       enabled: yes

install-docker-ce-ubuntu.yaml

- hosts: all
  tasks:
  - name: Install base Packages
    apt:
      name: ['python','gpg','apt-transport-https']
      state: present
      update_cache: yes
  - name: Add Docker GPG key
    apt_key: url=https://download.docker.com/linux/ubuntu/gpg

  - name: Add Docker APT repository
    apt_repository:
      repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu {{ansible_distribution_release}} stable

  - name: Install docker packages
    apt:
      name: ['ca-certificates','curl','software-properties-common','docker-ce']
      state: present
      update_cache: yes
  - name:  Starting and Enabling Docker service
    service:
       name: docker
       state: started
       enabled: yes

setup-user-to-wheel-group.yml

- hosts: all
  become: true
  tasks:
  - name: Make sure we have a 'wheel' group
    group:
      name: wheel
      state: present

  - name: Allow 'wheel' group to have passwordless sudo
    lineinfile:
      dest: /etc/sudoers
      state: present
      regexp: '^%wheel'
      line: '%wheel ALL=(ALL) NOPASSWD: ALL'
      validate: 'visudo -cf %s'

  - name: Add sudoers {{ sudo_user }} to wheel group
    user: name={{ sudo_user }} groups=wheel append=yes state=present createhome=yes