Factorise networking config of vm02187 into infra/common

infra/common/networking.nix

@@ -14,7 +14,10 @@ in
   };
 
   config = {
-    services.openssh.enable = true;
+    services.openssh = {
+      enable = true;
+      settings.PasswordAuthentication = false;
+    };
 
     networking = {
       hostName = config.procolix.vm.name;

infra/vm02187/configuration.nix

@@ -1,6 +1,14 @@
 { pkgs, ... }:
 
 {
+  imports = [ ../common ];
+
+  procolix.vm = {
+    name = "vm02187";
+    ip4 = "185.206.232.187";
+    ip6 = "2a00:51c0:12:1201::187";
+  };
+
   # Use the systemd-boot EFI boot loader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
@@ -67,119 +75,6 @@
 
   users.users.nginx.extraGroups = [ "acme" ];
 
-  networking = {
-    hostName = "vm02187";
-    domain = "procolix.com";
-    interfaces = {
-      eth0 = {
-        ipv4 = {
-          addresses = [
-            {
-              address = "185.206.232.187";
-              prefixLength = 24;
-            }
-          ];
-        };
-        ipv6 = {
-          addresses = [
-            {
-              address = "2a00:51c0:12:1201::187";
-              prefixLength = 64;
-            }
-          ];
-        };
-      };
-    };
-    defaultGateway = {
-      address = "185.206.232.1";
-      interface = "eth0";
-    };
-    defaultGateway6 = {
-      address = "2a00:51c0:12:1201::1";
-      interface = "eth0";
-    };
-    nameservers = [
-      "95.215.185.6"
-      "95.215.185.7"
-    ];
-    firewall.enable = false;
-    nftables = {
-      enable = true;
-      ruleset = ''
-        #!/usr/sbin/nft -f
-
-        flush ruleset
-
-        ########### define usefull variables here #####################
-        define wan        = eth0
-        define ssh_allow  = {
-                    83.161.147.127/32, # host801 ipv4
-                    95.215.185.92/32,  # host088 ipv4
-                    95.215.185.211/32, # host089 ipv4
-                    95.215.185.34/32,  # nagios2 ipv4
-                    95.215.185.181/32, # ansible.procolix.com
-                    95.215.185.235,        # ansible-hq
-                }
-        define snmp_allow = {
-                    95.215.185.31/32,   # cacti ipv4
-                }
-        define nrpe_allow = {
-                    95.215.185.34/32,   # nagios2 ipv4
-                }
-
-        ########### here starts the automated bit #####################
-        table inet filter {
-            chain input {
-                type filter hook input priority 0;
-                policy drop;
-
-                # established/related connections
-                ct state established,related accept
-                ct state invalid drop
-
-                # Limit ping requests.
-                ip protocol icmp icmp type echo-request limit rate over 10/second burst 50 packets drop
-                ip6 nexthdr icmpv6 icmpv6 type echo-request limit rate over 10/second burst 50 packets drop
-
-                # loopback interface
-                iifname lo accept
-
-                # icmp
-                ip protocol icmp icmp type { destination-unreachable, echo-reply, echo-request, source-quench, time-exceeded } accept
-                # Without the nd-* ones ipv6 will not work.
-                ip6 nexthdr icmpv6 icmpv6 type { destination-unreachable, echo-reply, echo-request, nd-neighbor-solicit,  nd-router-advert, nd-neighbor-advert, packet-too-big, parameter-problem, time-exceeded } accept
-
-                # open tcp ports: sshd (22)
-                # ip saddr $ssh_allow tcp dport {ssh} accept
-                tcp dport {ssh} accept
-
-                # open tcp ports: snmp (161)
-                ip saddr $snmp_allow udp dport {snmp} accept
-
-                # open tcp ports: nrpe (5666)
-                ip saddr $nrpe_allow tcp dport {nrpe} accept
-
-                # open tcp ports: http (80,443)
-                tcp dport {http,https} accept
-            }
-            chain forward {
-                type filter hook forward priority 0;
-            }
-            chain output {
-                type filter hook output priority 0;
-            }
-        }
-
-        table ip nat {
-            chain postrouting {
-            }
-            chain prerouting {
-            }
-        }
-      '';
-    };
-  };
-
   # Set your time zone.
   time.timeZone = "Europe/Amsterdam";
 
@@ -235,9 +130,6 @@
     wget
   ];
 
-  # Enable the OpenSSH daemon.
-  services.openssh.enable = true;
-  services.openssh.settings.PasswordAuthentication = false;
   security.sudo.wheelNeedsPassword = false;
 
   # This value determines the NixOS release from which the default