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Holds the ansbile playbooks of Freifunk Südholstein

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Ansible

Ansible Lint

This repository holds the Ansible playbook to deploy a ffsh gateway in the standard configuration. It is based on https://docs.freifunk-suedholstein.de/de/1.5/gateway.html but changes were made where it was plausible.

requirements

ssh-key

As the login is done via ssh make sure that the ssh key is registered at your identity manager ssh-add $keyfile. That way Ansible will be able to automatically detect the right ssh key and connect to the server.

hosts

If you want to deploy to a new gateway you need to add it to the hosts.yml file in the repo, just compare it to brunsbach and add your own details.

If you set enable_wireguard_exit to true ansible will deploy wireguard and attempt to generate a mullvad config.

Mullvad

This ansible script uses wg-conf-gen to generate a Mullvad wireguard configurration.

The python script will call the Mullvad API with the details you provide in host_vars (see below).

It will select a random gateway based on country and city.

host_vars/$gatewayname.yml

You also need to supply your fastd secret as an encrypted secret, you get the password via the NOC Team.

To create a new fastd secret, execute the following, this will ask you for a password and open an editor.

ansible-vault create --vault-id fastd_key@prompt host_vars/$gatewayname.yml

The config has the following options.

option comment
fastd_secret fastd secret key
wg_device Optional but you can put the name here that was generated by mullvad
wg_pk Wireguard private key provided by mullvad
wg_address ipV4 and ipV6 address provided by mullvad
wg_country Country supported by mullvad
wg_city A City that mullvad has in your selected country
ffshmon_mail The email that should be used to send alerts if the wireguard tunnel is down
ffshmon_pw The password for the email

For available country and city check here: https://mullvad.net/de/servers

Example config:

fastd_secret: 1234df132fssd...
wg_device: Mellow Pony
wg_pk: aDfkfdsgnn1232345...
wg_address: 1.2.3.4/32,fxx...../128
wg_country: Netherlands
wg_city: Amsterdam
ffshmon_mail: wg-mon@freifunk-suedholstein.de
ffshmon_pw: secretpassword

save and close the editor, done you added your secret :)

You can change the content any time by

ansible-vault edit --vault-id fastd_key@prompt host_vars/$gatewayname.yml

Usage

Run playbook on all gateways listed in hosts:

ansible-playbook --vault-id=fastd_key@prompt setup.yml

Run playbook on one host

ansible-playbook --vault-id=fastd_key@prompt setup.yml --limit $hostname

Run only the roles with the specific tag, to see which role is attached to which tag open setup.yaml:

ansible-playbook --vault-id=fastd_key@prompt setup.yml --tags "ssh keys"

These can also be combined:

ansible-playbook --vault-id=fastd_key@prompt setup.yml --limit $hostname --tags "oh-my-zsh"