write ansible

slides/ansible/ansible.md

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+---
+title: Ansible
+author: Malin
+theme: Warsaw
+colortheme: orchid
+---
+
+# First: Idempotence
+
+## My Setup Script
+
+
+```sh
+# 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'
+
+***
+
+```sh
+# 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
+
+***
+
+```sh
+# 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`
+
+```sh
+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
+```
+
+> `$ ???`
+
+***
+
+
+```sh
+grep en_GB /etc/locale.conf || \
+    echo 'LANG=en_GB.UTF-8' >> /etc/locale.conf
+
+```
+
+***
+
+# So Ansible...
+
+
+```sh
+ansible --module-name=ping localhost
+ansible -m package -a 'upgrade=yes' localhost
+```
+
+## Lines in Files
+
+```sh
+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`:
+
+```sh
+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
+
+
+```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:
+
+```yml
+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 ]`
+
+