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diff --git a/content/posts/2019-03-07-ansible-part-1.org b/content/posts/2019-03-07-ansible-part-1.org deleted file mode 100644 index c8782e9..0000000 --- a/content/posts/2019-03-07-ansible-part-1.org +++ /dev/null @@ -1,99 +0,0 @@ ---- -layout: post -title: "Automating setup with ansible-pull part-1" -date: 2019-03-07 -lastmod: 2020-07-12 -tags: ['ansible', 'ansible-pull', 'linux', 'fedora'] ---- - -Every time that I do a clean install on my machine it takes a few hours till I -get to point where I was before formatting it, install all packages, select -themes, icons, fonts, install IDEs, extensions and so on. After doing it a few -times I came to the conclusion that I would save time by spending time automating this chore, and -as a result, I could tinker a little more with my system and not worry about -spending a weekend re-installing everything (which have happened more time that -I'd like to remember). - -<!--more--> - -So after a few attempts using python and bash I ended with many files and -keep everything organized and concise turned out to be more tedious than the -setup itself. So there comes [[https://www.ansible.com/][Ansible]]. It is an enterprise-graded software used -to automate tasks. It has A LOT OF features and it can be really helpful if -you're a sysadmin but for now we're going to focus on [[https://docs.ansible.com/ansible/latest/user_guide/playbooks_intro.html#ansible-pull][Ansible Pull]] and -[[https://docs.ansible.com/ansible/latest/user_guide/playbooks.html][Playbooks]]. As better described: - -#+BEGIN_QUOTE -[Ansible-Pull] is used to up a remote copy of ansible on each managed node, each -set to run via cron and update playbook source via a source repository. This -inverts the default push architecture of Ansible into a pull architecture, which -has near-limitless scaling potential. - -Playbooks are Ansible’s configuration, deployment, and orchestration language. -They can describe a policy you want your remote systems to enforce, or a set of -steps in a general IT process. - -[[https://docs.ansible.com/ansible/latest/cli/ansible-pull.html][source]] -#+END_QUOTE - -The goal is to pull and run a playbook remotely using a git repository. The -playbook will describe the tasks needed to setup our machine from scratch. - -But first lets tinker a bit a with playbooks locally with ~ansible-playbook~, to -do so we need to add ~localhost~ to ansible's hosts list. Add it to -~/etc/ansible/hosts~: - -#+BEGIN_SRC service -[all] -localhost -#+END_SRC - -As an experiment we're going to write a asks to install vim. Currently, I'm using -[[https://getfedora.org/][Fedora]] thus we going to use [[https://docs.ansible.com/ansible/latest/modules/dnf_module.html][dnf modeule]] to install packages, but if you're using -another distribution look for a equivalent module like [[https://docs.ansible.com/ansible/latest/modules/apt_module.html][apt module]] for [[https://ubuntu.com/][Ubuntu]]. - -The playbook to install is quite simple: - -#+BEGIN_SRC yaml -# main.yaml -- hosts: all - tasks: - - name: install vim - dnf: - name: vim - state: latest -#+END_SRC - -~hosts:~ is required and it has to match our hosts otherwise the playbook won't -run. - -~tasks:~ is the list of tasks that the playbook will perform, in this case will -be ~dnf install vim~. - -To run a playbook use the command ~ansible-playbook~ commando to run -~main.yml~ direct from disk, do to so just run the following command: - -#+BEGIN_SRC bash -sudo ansible-playbook --connection=local main.yml -#+END_SRC - - -After a few seconds, vim will be installed on your machine. - -#+BEGIN_SRC -PLAY [all] ************************************************************* - -TASK [Gathering Facts] ************************************************* -ok: [localhost] - -TASK [install vim] ***************************************************** -ok: [localhost] - -PLAY RECAP ************************************************************* -localhost : ok=2 changed=0 unreachable=0 failed=0 -#+END_SRC - - -This is the first step, next part we shall create a more complex playbook and -setup repository to run it remotely using ~ansible-pull~. - |