ondrejsika / ansible-training

Hi 👋, I'm Ondrej Sika from SikaLabs

Software, DevOps & SRE Engineer, Architect, Consultant and Lecturer 🇬🇧🇩🇪🇨🇿

Check out my courses

Docker	Kubernetes	Terraform	Rancher	Gitlab CI	Git

ansible-training's Issues

add `ansible-galaxy collection install community.docker` to docker example

vault password in ENV

ansible-playbook --vault-pass-file <(echo $PASSWORD) playbooks/ping.yml

terraform: use cloud init instead of remote-exec provisioner

ssh password in hosts (inventory)

https://serverfault.com/questions/628989/how-to-set-default-ansible-username-password-for-ssh-connection

iventory in ini with subgroups

[servers:children]
db
web

[web]
vm[0:1].sikademo.com

[db]
vm[2:3].sikademo.com

[router]
vm[4:5].sikademo.com

cowsay easter eggs

https://michaelheap.com/cowsay-and-ansible/

install ansible using pipx

[9:37 AM] Ondrej Sika
apt install python3.10-venv
[9:38 AM] Ondrej Sika
pip3 install pipx
[9:38 AM] Ondrej Sika
pipx install --include-deps ansible
[9:40 AM] Ondrej Sika
pipx ensurepath

https://docs.ansible.com/ansible/latest/installation_guide/intro_installation.html#installing-and-upgrading-ansible-with-pipx

Do a DevOps Live on Setup AWX on VM

Add link to docs of jinja2

https://docs.ansible.com/ansible/latest/playbook_guide/playbooks_filters.html

ansible return values

why "---"

https://stackoverflow.com/questions/50788277/why-3-dashes-hyphen-in-yaml-file

add example of `ansible lab0a.sikademo.com -m apt -a "name=cowsay update_cache=yes state=present"`

ansible lab0a.sikademo.com -m apt -a "name=cowsay update_cache=yes state=present"

set_fact example

  tasks:
  - set_fact:
      list: []

  - set_fact:
      list: "{{ list + [0] }}"

  - set_fact:
      list: "{{ list + [1] }}"

  - debug:
      msg: "{{ list }}"

tags

more examples with jinja2 & gather_facts

Multiple Vault Passwords

https://docs.ansible.com/ansible/2.8/user_guide/vault.html#multiple-vault-passwords

fix link

roles_path=~/.ansible/roles:roles

add ansible modules docs link

• https://docs.ansible.com/ansible/2.9/modules/list_of_all_modules.html
• https://docs.ansible.com/ansible/2.9/modules/modules_by_category.html

WIP Install AWX on VM (using RKE2)

...

/var/lib/rancher/rke2/bin/kubectl --kubeconfig /etc/rancher/rke2/rke2.yaml get nodes

vars_prompt

save log of the job to local file

https://serverfault.com/questions/958952/ansible-task-write-to-local-log-file

debug module

awx

tags

include vs import

https://serverfault.com/questions/875247/whats-the-difference-between-include-tasks-and-import-tasks

remove last step from nginx playbook

assert

dry run using `--check`

ansible all -a 'sh -c "docker rm -f $(docker ps -aq)"'

ansible all -a 'sh -c "docker rm -f $(docker ps -aq)"'

Add links to modules docs

• https://docs.ansible.com/ansible/latest/collections/index.html
• https://docs.ansible.com/ansible/latest/collections/ansible/builtin/index.html#plugins-in-ansible-builtin

connecting-to-hosts-behavioral-inventory-parameters (jump host)

https://docs.ansible.com/ansible/latest/user_guide/intro_inventory.html#connecting-to-hosts-behavioral-inventory-parameters

Add example of -e name=XXX

ansible-playbook playbooks/nginx2.yml -e name=XXX

use pip3 (instead of pip)

ansible-playbook playbooks/nginx2.yml -e 'name=Nela'

add link to all modules

https://docs.ansible.com/ansible/latest/collections/index_module.html

update defaults in nginx3 example

Rescue Example

https://docs.ansible.com/ansible/latest/user_guide/playbooks_blocks.html#id4

---
- name: Rescue Example
  hosts: all
  gather_facts: false

  tasks:
  - name: Handle the error
    block:
      - name: Print a message
        ansible.builtin.debug:
          msg: 'I execute normally'

      - name: Force a failure
        ansible.builtin.command: /bin/false

      - name: Never print this
        ansible.builtin.debug:
          msg: 'I never execute, due to the above task failing, :-('

    rescue:
      - name: Print when errors
        ansible.builtin.debug:
          msg: 'I caught an error, can do stuff here to fix it, :-)'

    always:
      - name: Always do this
        ansible.builtin.debug:
          msg: "This always executes, :-)"

loop

cowsay subshell example

ansible all -a 'sh -c "/usr/games/cowsay $(hostname)"'