ansible_homelab

This is an attempt to learn ansible and set a home lab using an older PC. My desktop will act as my Ansible control host.

Before starting need to setup an SSH key for ansible and add it to the server.

create key pairs

ssh-keygen -t ed25519 -C paul default  # with pass hase 
ssh-keygen -t ed25519 -C ansible       # no pass phrase, specify diff location/name

ssh to host

to add fingerprint to known_hosts

add keys

ssh-copy-id -i ~/.ssh/id_ed25519.pub 10.0.0.42
ssh-copy-id -i ~/.ssh/ansible.pub 10.0.0.42

configure ansible to use key

create file ansible.cfg add contents [default] private_key_file = ~/.ssh/ansible

Graphics setup

In order to get display manager working on this particular machine I need to install firmware-amd-graphics which in non-free and requires an update to /apt/etc/sources.list, append "contrib non-free" to end of deb

deb http://deb.debian.org/debian/ buster main contrib non-free

followed by: $ sudo apt update $ sudo apt install firmware-amd-graphics

this can all be done using ssh, after a reboot graphical interface should be available.

We also need to configure system to not sleep when idle, we'll try and do this using ansible. edit /etc/gdm3/greeter.dconf-defaults add sleep-inactive-ac-type='blank'

ad-hoc ansible commands

ansible all -m ping ansible all -m apt -a update-cache=true --become --ask-become-pass ansible all -m apt -a "upgrade=dist" --become --ask-become-pass

file server setup

I've manually installed zfs and created a pool sudo apt install linux-headers-uname -r apt install zfsutils-linux

$ sudo /sbin/modprobe zfs
$ sudo zpool create tank raidz sdb sdc
$ sudo mkdir -p /data
$ sudo zfs create -o mountpoint=/data tank/data
$ sudo zpool status tank

$ lsblk
NAME                 MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda                    8:0    0  74.5G  0 disk 
├─sda1                 8:1    0   487M  0 part /boot
├─sda2                 8:2    0     1K  0 part 
└─sda5                 8:5    0    74G  0 part 
├─atlas--vg-root   254:0    0  13.9G  0 lvm  /
└─atlas--vg-swap_1 254:1    0   976M  0 lvm  [SWAP]
sdb                    8:16   0 931.5G  0 disk 
├─sdb1                 8:17   0 931.5G  0 part 
└─sdb9                 8:25   0     8M  0 part 
sdc                    8:32   0 931.5G  0 disk 
├─sdc1                 8:33   0 931.5G  0 part 
└─sdc9                 8:41   0     8M  0 part 
sr0                   11:0    1  1024M  0 rom 

manual installs

• AWS CLI to allow me to download files from an S3 bucket
• Plex media server

$ aws s3 sync s3://windows-pc-backup-may-2021/Pictures /pictures