workshops/slides/ansible/ansible.md

title, author, theme, colortheme

title	author	theme	colortheme
Ansible	Malin	Warsaw	orchid

First: Idempotence

My Setup Script

# Place locale info
echo 'LANG=en_GB.UTF-8' >> /etc/locale.conf
/etc/default/libc-locales
xbps-reconfigure -fy glibc-locales

# Start cron service
xbps-install -y crontab
ln -s /etc/sv/cronie /var/service
sv start crontab

#  Add default dot files
git clone https://gitlab.com/andonome/mkdots.git /etc/skel/.dots

useradd -m ghost
usermod -aG wheel

---

Error: no package 'cron tab'

---

# Place locale info
echo 'LANG=en_GB.UTF-8' >> /etc/locale.conf
/etc/default/libc-locales
xbps-reconfigure -fy glibc-locales

# Start cron service
xbps-install -y cronie
ln -s /etc/sv/cronie /var/service
sv start cronie

#  Add default dot files
git clone https://gitlab.com/andonome/mkdots.git /etc/skel/.dots

useradd -m ghost
usermod -aG wheel

...loading locales

---

Error: No command 'git' Error: user already exists

---

# Place locale info
echo 'LANG=en_GB.UTF-8' >> /etc/locale.conf
/etc/default/libc-locales
xbps-reconfigure -fy glibc-locales

# Start cron service
xbps-install -y cronie git
ln -s /etc/sv/cronie /var/service
sv start cronie

#  Add default dot files
git clone https://gitlab.com/andonome/mkdots.git /etc/skel/.dots

useradd -m ghost
usermod -G wheel

---

$ cat /etc/locale.conf

LC_COLLATE=C
LANG=en_GB.UTF-8
LANG=en_GB.UTF-8
LANG=en_GB.UTF-8
LANG=en_GB.UTF-8
LANG=en_GB.UTF-8
LANG=en_GB.UTF-8

$ ???

---

grep en_GB /etc/locale.conf || \
    echo 'LANG=en_GB.UTF-8' >> /etc/locale.conf

---

So Ansible...

ansible --module-name=ping localhost
ansible -m package -a 'upgrade=yes' localhost

Lines in Files

ansible -m lineinfile -a 'line=test create=yes path=/tmp/x' localhost
ansible -m say -a 'voice=en_GB msg="Testing"' localhost
ansible -m say -a 'voice=en_GB msg="Testing"' localhost

---

More Hosts!

Hark at the hosts in ~/.ssh/config:

Host soft
    HostName soft.dmz.rs
    Port 2222
	User ghost
	IdentityFile ~/.ssh/id_rsa
Host krov
	HostName krov.dmz.rs
	User malin
Host kralizec
	HostName dmz.rs
	User root
Host laka
	HostName 192.168.0.50
	IdentityFile ~/.ssh/id_rsa

---

Hosts in toml

[webby]
nginx12

[webby:vars]
user=alice

This is easy to read, but breaks standards.

---

ansible-play -i hosts.toml playbooks/mmcli

---

Better to stick with standards, even if you can't read it!

---

Very yaml:

all:
  vars:
    ansible_python_interpreter: /usr/bin/python3.13
    cow_selection: random
    username: ghost
    locale: Europe/Belgrade
    libc_locale: en_GB.UTF-8 UTF-8
  children:
    arch:
      children:
        archyay:
          hosts:
            ratking:
            archkube:
            nimbus:
    void:
      hosts:
        hex:
    debian:
      vars:
        ansible_python_interpreter: /usr/bin/python3.12
      hosts:
        laka:
        proxmox:

---

ansible-play -i hosts.yml playbooks/mmcli

---

What it Does

• Installs packages
• Copies configs to host
• Fetches files from host
  • Backup ssl certs
  • Backup ssh identify keys

---

Check the Repository Here!

[ $git_repo_address ]