use variable for fast keys repo url

group_vars/all.yml

@@ -8,3 +8,4 @@ ipv6_subnet: 2001:67c:2d50::/48
 
 # Some other configs:
 dns_repo_url: "https://git.luebeck.freifunk.net/FreifunkLuebeck/ffhl-dns.git"
+fastd_keys_repo: "git@git.luebeck.freifunk.net:FreifunkLuebeck/fastd-keys.git"

roles/base/tasks/mesh-vpn.yml

@@ -29,7 +29,7 @@
 # configure peers git
 - name: clone fastd-keys repo
   git:
-    repo: git@git.luebeck.freifunk.net:FreifunkLuebeck/fastd-keys.git
+    repo: "{{ fastd_keys_repo }}"
     dest: /var/local/ffhl-mesh-vpn-peers
     accept_hostkey: yes
     version: HEAD