blog: infrastructure management with ansible

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+# Agent-less infrastructure management with Ansible :ansible:
+As I explore new things and grow my homelab :raspberry-pi: infrastructure things start to get a little messy. I've reached the point where I should start using more advanced deployment strategy than just manually setting up servers via SSH or `rsync`-ing a bunch of files into them. The goal is to reach [Infrastructure as Code](https://en.wikipedia.org/wiki/Infrastructure_as_code).
+
+## But what about Docker? :whale:
+[Docker](https://www.docker.com/) is an amazing tool that solves particularly nasty problem - isolating your application from environment and **reliably** running it on any platform. You just pack your application into the container and ship it anywhere you want! It makes your app **scalable**!
+
+I use Docker on my daily job and I can't imagine it otherwise. But here, in my tiny homelab (which is just one RaspberryPI :raspberry-pi: at this point), this is not world-class production problems, so it might be an overkill.
+
+Docker requires your servers to run a *daemon* - e.g extra software layer (and it's dependencies) between your applications and the metal. It will run in the background and make your fan work a bit louder :helicopter: in the upcoming summer nights to compensate for those extra couple degrees.
+
+![meme](/public/docker-on-rpi.jpg)
+
+## Introducting Ansible :ansible:
+[Here it comes](https://ansible.com) - **agent-less** deployment tool that doesn't require your server to run anymore bullshit than good old Python :python: and open SSH port.
+
+In Ansible you define so called playbooks - `YAML` specs of your tasks. Then you just feed the `YAML` to `ansible-playbook` and voila! It's already SSHing into your machines and doing your job now!
+
+Ansible is not the tool you should learn, it's so simple that you can use it right away!
+
+## Examples from my infrastructure :raspberry-pi:
+Ansible has a bunch of built-in convenience commands that make your life even more enjoyable.
+
+![meme](/public/pepe-smug.png)
+
+This is how easy it is to setup a cron-job:
+```YAML
+ - name: Setup auto-renewing certificates
+   become: true
+   cron:
+     name: "Auto-renew certificates"
+     minute: "0"
+     hour: "12"
+     job: "/usr/bin/certbot renew --quiet"
+```
+
+Transferring files:
+```YAML
+ - name: Copy nginx configuration
+   become: true
+   copy:
+     src: ./files/nginx/website
+     dest: /etc/nginx/sites-available
+```
+
+Installing packages:
+```YAML
+ - name: Install build tools
+   apt:
+     pkg:
+     - gcc
+     - make
+     - cmake
+     - gnutls-dev
+     - uuid-dev
+```
+
+...and many many more. Check out source code of my playbooks here:
+ - https://git.eug-vs.xyz/eug-vs/infrastructure/
+
+The notable ones are:
+ - Installing [taskd](https://git.eug-vs.xyz/eug-vs/infrastructure/tree/taskd.yaml) (migth be worth a separate post)
+ - Installing [git server along with cgit](https://git.eug-vs.xyz/eug-vs/infrastructure/tree/git-server.yaml)
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 ### March
 
+- [Agent-less infrastructure management with Ansible :ansible:](2022-03-26.md)
 - [Here comes my git server :fire:](2022-03-24.md)
 - [Жыве Беларусь! :belarus:](2022-03-17.md)
 
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