Move the DERP relay directly to Linode

nixos/hosts/framework-server/default.nix

@@ -21,7 +21,11 @@
     ];
 
   # backups-rpi4 cron job to back up sysctl.io's Docker files
-  users.users.root.openssh.authorizedKeys.keys = [ ''ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKp2wgqFcr0LGaUXbom88/zK2631pysePUWIaCMljT0K root@backups-rpi4'' ];
+  # osaka-linode-01 cron job to copy certs for the DERP relay
+  users.users.root.openssh.authorizedKeys.keys = [ 
+    ''ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKp2wgqFcr0LGaUXbom88/zK2631pysePUWIaCMljT0K root@backups-rpi4'' 
+    ''ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIKkNFdEcYIrjss1Nz0tU/AX89hUMmxB/Vabvsa7A6E2K root@osaka-linode-01''
+  ];
   services.openssh.settings.PermitRootLogin = lib.mkForce "prohibit-password";
 
   boot.initrd.availableKernelModules = [ "xhci_pci" "nvme" "thunderbolt" "sd_mod" "uas" ];

nixos/hosts/osaka-linode-01/default.nix

@@ -4,6 +4,7 @@
     ../../common/services/tailscale-autoconnect.nix
     ./firewall.nix
     ./wireguard.nix
+    ./podman.nix
   ];
 
   boot.initrd.availableKernelModules = [ "virtio_pci" "virtio_scsi" "ahci" "sd_mod" ];

nixos/hosts/osaka-linode-01/firewall.nix

@@ -38,9 +38,9 @@
               iifname "enp0s4" tcp dport 443   dnat to 10.100.0.2:443;   # HTTPS
               iifname "enp0s4" tcp dport 42420 dnat to 10.100.0.2:42420; # Vintage Story
               iifname "enp0s4" tcp dport 25565 dnat to 10.100.0.2:25565; # Minecraft
-              iifname "enp0s4" tcp dport 1443  dnat to 10.100.0.2:1443;  # Headscale DERP (tcp)
+              # iifname "enp0s4" tcp dport 1443  dnat to 10.100.0.2:1443;  # Headscale DERP (tcp)
-              iifname "enp0s4" udp dport 3478  dnat to 10.100.0.2:3478;  # Headscale DERP (udp)
+              # iifname "enp0s4" udp dport 3478  dnat to 10.100.0.2:3478;  # Headscale DERP (udp)
-              iifname "enp0s4" udp dport 10000 dnat to 10.100.0.2:10000; # Headscale DERP (udp)
+              # iifname "enp0s4" udp dport 10000 dnat to 10.100.0.2:10000; # Headscale DERP (udp)
               iifname "enp0s4" tcp dport 4443  dnat to 10.100.0.2:4443;  # Jitsi
             }
           }
@@ -62,9 +62,9 @@
         { sourcePort = 443;   proto = "tcp"; destination = "10.100.0.2:443";   } # HTTPS
         { sourcePort = 42420; proto = "tcp"; destination = "10.100.0.2:42420"; } # Vintage Story
         { sourcePort = 25565; proto = "tcp"; destination = "10.100.0.2:25565"; } # Minecraft
-        { sourcePort = 1443;  proto = "tcp"; destination = "10.100.0.2:1443";  } # Headscale DERP (tcp)
+        # { sourcePort = 1443;  proto = "tcp"; destination = "10.100.0.2:1443";  } # Headscale DERP (tcp)
-        { sourcePort = 3478;  proto = "udp"; destination = "10.100.0.2:3478";  } # Headscale DERP (udp)
+        # { sourcePort = 3478;  proto = "udp"; destination = "10.100.0.2:3478";  } # Headscale DERP (udp)
-        { sourcePort = 10000; proto = "udp"; destination = "10.100.0.2:10000"; } # Headscale DERP (udp)
+        # { sourcePort = 10000; proto = "udp"; destination = "10.100.0.2:10000"; } # Headscale DERP (udp)
         { sourcePort = 4443;  proto = "tcp"; destination = "10.100.0.2:4443";  } # Jitsi
       ];
     };

nixos/hosts/osaka-linode-01/podman.nix

@@ -0,0 +1,21 @@
+{ lib, pkgs, ... }: {
+
+    # Runtime
+    virtualisation.podman = {
+        enable = true;
+        autoPrune.enable = true;
+        dockerCompat = true;
+        defaultNetwork.settings = {
+        # Required for container networking to be able to use names.
+        dns_enabled = true;
+        };
+    };
+    virtualisation.oci-containers.backend = "podman";
+
+    # Containers
+    imports = [ 
+        ./podman/derp.nix
+    ];
+
+    environment.systemPackages = [ pkgs.ctop ];
+}

nixos/hosts/osaka-linode-01/podman/derp.nix

@@ -0,0 +1,88 @@
+# Auto-generated using compose2nix v0.1.7.
+{ pkgs, lib, ... }: {
+    services.cron = {
+      enable = true;
+      systemCronJobs = [
+          ''0 0 * * * root rsync -avr  root@framework-server:/Storage/Data/Docker/sysctl.io/letsencrypt/ /Storage/Data/Docker/sysctl.io/letsencrypt/''
+      ];
+    };
+
+  # Runtime
+  virtualisation.podman = {
+    enable = true;
+    autoPrune.enable = true;
+    dockerCompat = true;
+    defaultNetwork.settings = {
+      # Required for container networking to be able to use names.
+      dns_enabled = true;
+    };
+  };
+  virtualisation.oci-containers.backend = "podman";
+
+  # Containers
+  virtualisation.oci-containers.containers."headscale-derp" = {
+    image = "fredliang/derper";
+    environment = {
+      DERP_ADDR = ":1443";
+      DERP_CERT_DIR = "/app/certs";
+      DERP_CERT_MODE = "manual";
+      DERP_DOMAIN = "sysctl.io";
+      DERP_STUN = "true";
+    };
+    volumes = [
+      "/Storage/Data/Docker/sysctl.io/letsencrypt/external/certificates/certs/*.sysctl.io.crt:/app/certs/sysctl.io.crt:ro"
+      "/Storage/Data/Docker/sysctl.io/letsencrypt/external/certificates/private/*.sysctl.io.key:/app/certs/sysctl.io.key:ro"
+    ];
+    ports = [
+      "3478:3478/udp"
+      "1443:1443/tcp"
+    ];
+    log-driver = "journald";
+    extraOptions = [
+      "--network-alias=headscale-derp"
+      "--network=headscale-default"
+    ];
+  };
+  systemd.services."podman-headscale-derp" = {
+    serviceConfig = {
+      Restart = lib.mkOverride 500 "always";
+    };
+    after = [
+      "podman-network-headscale-default.service"
+    ];
+    requires = [
+      "podman-network-headscale-default.service"
+    ];
+    partOf = [
+      "podman-compose-headscale-root.target"
+    ];
+    wantedBy = [
+      "podman-compose-headscale-root.target"
+    ];
+  };
+
+  # Networks
+  systemd.services."podman-network-headscale-default" = {
+    path = [ pkgs.podman ];
+    serviceConfig = {
+      Type = "oneshot";
+      RemainAfterExit = true;
+      ExecStop = "${pkgs.podman}/bin/podman network rm -f headscale-default";
+    };
+    script = ''
+      podman network inspect headscale-default || podman network create headscale-default --opt isolate=true
+    '';
+    partOf = [ "podman-compose-headscale-root.target" ];
+    wantedBy = [ "podman-compose-headscale-root.target" ];
+  };
+
+  # Root service
+  # When started, this will automatically create all resources and start
+  # the containers. When stopped, this will teardown all resources.
+  systemd.targets."podman-compose-headscale-root" = {
+    unitConfig = {
+      Description = "Root target generated by compose2nix.";
+    };
+    wantedBy = [ "multi-user.target" ];
+  };
+}

nixos/hosts/piaware-rpi4/podman/piaware.nix

@@ -1,7 +1,5 @@
 # Auto-generated using compose2nix v0.1.6.
-{ pkgs, lib, ... }:
+{ pkgs, lib, ... }: {
-
-{
   # Containers
   virtualisation.oci-containers.containers."piaware" = {
     image = "ghcr.io/sdr-enthusiasts/docker-piaware:latest";