TuDatTr IaC

Backups

Backup for aya01 and raspberry are in a backblaze b2, which gets encrypted on the clientside by rclone. but first of all we need to create the buckets and provide ansible with the needed information.

Vault

• Create vault with: ansible-vault create secrets.yml
• Create entry in vault with: ansible-vault edit secrets.yml
• Add following entries:
  • vault_pi_tudattr_password: <YOURPASSWORD> (password you've setup on the device)
  • vault_aya01_tudattr_password: <YOURPASSWORD> (password you've setup on the device)
  • vault_pihole_password: <YOURPASSWORD> (arbitrary password you want to log in with)
  • vault_mysql_root_password: <YOURPASSWORD> (arbitrary password, used internally)
  • vault_mysql_user_password: <YOURPASSWORD> (arbitrary password, used internally)
  • vault_ddns_tudattrdev_password: <YOURPASSWORD> (password needed for ddns, refer to here)
  • vault_ddns_borgland_password: <YOURPASSWORD> (password needed for ddns, refer to here)

Server

• Install Debian (debian-11.5.0-amd64-netinst.iso) on remote system
• Create user (tudattr)
• Get IP of remote system (192.168.20.11)
• Create ssh-config entry

  Host aya01
    HostName 192.168.20.11
    Port 22
    User tudattr
    IdentityFile /mnt/veracrypt1/genesis
  

  • copy public key to remote system ssh-copy-id -i /mnt/veracrypt1/genesis.pub aya01
• Add this host to ansible inventory
• Install sudo on remote
• add user to sudo group (with su --login without login the path will not be loaded correctly see here) and usermod -a -G sudo tudattr
• set time correctly when getting the following error

Release file for http://security.debian.org/debian-security/dists/bullseye-security/InRelease is not valid yet (invalid for another 12h 46min 9s). Updates for this repository will not be applied.

By doing on remote system (example):

sudo systemctl stop ntp.service
sudo ntpd -gq
sudo systemctl start ntp.service

zoneminder

• Enable authentification in (Option->System)
• Create new Camera:
  • General>Name: BirdCam
  • General>Function: Ffmpeg
  • General>Function: Modect
  • Source>Source Path: rtsp://user:pw@ip:554/cam/mpeg4
• Change default admin password
• Create users

RaspberryPi

• Install raspbian lite (2022-09-22-raspios-bullseye-arm64-lite.img) on pi
• Get IP of remote system (192.168.20.11)
• Create ssh-config entry

Host pi
     HostName 192.168.20.11
     Port 22
     User tudattr
     IdentityFile /mnt/veracrypt1/genesis

• enable ssh on pi
• copy public key to pi
• change user password of user on pi
• execute ansible-playbook -i production --ask-vault-pass --extra-vars '@secrets.yml' pi.yml

Mikrotik

• Create rsa-key on your device and name it mikrotik_rsa
• On mikrotik run: /user/ssh-keys/import public-key-file=mikrotik_rsa.pub user=tudattr
• Create ssh-config entry:

Host mikrotik
     HostName 192.168.70.1
     Port 2200
     User tudattr
     IdentityFile /mnt/veracrypt1/mikrotik_rsa

wireguard

thanks to mikrotik0 quick code

# add wiregurad interface
interface/wireguard/add listen-port=51820 name=wg1
# get public key
interface/wireguard/print
$ > public-key: <mikrotik_public_key>
# add network/ip for wireguard interface
ip/address/add address=192.168.200.1/24 network=192.168.200.0 interface=wg1
# add firewall rule for wireguard (maybe specify to be from pppoe-wan)
/ip/firewall/filter/add chain=input protocol=udp dst-port=51820 action=accept 
# routing for wg1 clients and rest of the network
> <insert forward for routing between wg1 and other networks>
# enable internet for wg1 clients (may have to add to enable internet list
/ip/firewall/nat/add chain=srcnat src-address=192.168.200.0/24 out-interface=pppoe-wan action=masquerade

add peer

/interface/wireguard/peers/add interface=wg1 allowed-address=<untaken_ipv4>/24 public-key="<client_public_key"

Keygeneragion on archlinux wg genkey | (umask 0077 && tee wireguard.key) | wg pubkey > peer_A.pub Wireguard config on archlinux at /etc/wireguard/wg0.conf:

[Interface]
PrivateKey = <client_private_key>
Address = 192.168.200.250/24

[Peer]
PublicKey = <mikrotik public key>
Endpoint = tudattr.dev:51820
AllowedIPs = 0.0.0.0/0

used ipv4:

• tudattr: 192.168.200.250
• livei: 192.168.200.240

notes

• wireguard->add name: wg_tunnel01 listen port: 51820 [save]
• wireguard->peers->add interface: wg_tunnel01 endpoint port: 51820 allowed address: ::/0 psk: persistent keepalive: 25
• ip->address->address list->add address:192.168.200.1/24 network: 192.168.200.0 interface: wg_tunnel01

troubleshooting

Docker networking problem

docker system prune -a

Time problems (NTP service: n/a)

systemctl status systemd-timesyncd.service when not available sudo apt install systemd-timesyncd/stable

Syncthing inotify

echo "fs.inotify.max_user_watches=204800" | sudo tee -a /etc/sysctl.conf https://forum.cloudron.io/topic/7163/how-to-increase-inotify-limit-for-syncthing/2

Todo

• Role to load customization/configurations from backup to servers
• split docker containers to different composes or tag
• syncthing and grafana config on hosts
• grafana/prometheus