feat: longhorn & iscsi

Author: ryan4yin

hosts/k8s/k3s-prod-1-master-1/default.nix

@@ -15,5 +15,12 @@ in {
     (mylib.scanPaths ./.)
     ++ [
       coreModule
+      {
+        # Longhorn uses open-iscsi to create block devices.
+        services.openiscsi = {
+          name = "iqn.2020-08.org.linux-iscsi.initiatorhost:${hostName}";
+          enable = true;
+        };
+      }
     ];
 }

hosts/k8s/k3s-prod-1-master-2/default.nix

@@ -15,5 +15,12 @@ in {
     (mylib.scanPaths ./.)
     ++ [
       coreModule
+      {
+        # Longhorn uses open-iscsi to create block devices.
+        services.openiscsi = {
+          name = "iqn.2020-08.org.linux-iscsi.initiatorhost:${hostName}";
+          enable = true;
+        };
+      }
     ];
 }

hosts/k8s/k3s-prod-1-master-3/default.nix

@@ -15,5 +15,12 @@ in {
     (mylib.scanPaths ./.)
     ++ [
       coreModule
+      {
+        # Longhorn uses open-iscsi to create block devices.
+        services.openiscsi = {
+          name = "iqn.2020-08.org.linux-iscsi.initiatorhost:${hostName}";
+          enable = true;
+        };
+      }
     ];
 }

hosts/k8s/k3s-prod-1-worker-1/default.nix

@@ -15,5 +15,12 @@ in {
     (mylib.scanPaths ./.)
     ++ [
       coreModule
+      {
+        # Longhorn uses open-iscsi to create block devices.
+        services.openiscsi = {
+          name = "iqn.2020-08.org.linux-iscsi.initiatorhost:${hostName}";
+          enable = true;
+        };
+      }
     ];
 }

hosts/k8s/k3s-prod-1-worker-2/default.nix

@@ -15,5 +15,12 @@ in {
     (mylib.scanPaths ./.)
     ++ [
       coreModule
+      {
+        # Longhorn uses open-iscsi to create block devices.
+        services.openiscsi = {
+          name = "iqn.2020-08.org.linux-iscsi.initiatorhost:${hostName}";
+          enable = true;
+        };
+      }
     ];
 }

hosts/k8s/k3s-prod-1-worker-3/default.nix

@@ -15,5 +15,12 @@ in {
     (mylib.scanPaths ./.)
     ++ [
       coreModule
+      {
+        # Longhorn uses open-iscsi to create block devices.
+        services.openiscsi = {
+          name = "iqn.2020-08.org.linux-iscsi.initiatorhost:${hostName}";
+          enable = true;
+        };
+      }
     ];
 }

hosts/k8s/lib.nix

@@ -47,6 +47,12 @@
       };
     };
 
+    # Workaround for longhorn running on NixOS
+    # https://github.com/longhorn/longhorn/issues/2166
+    systemd.tmpfiles.rules = [
+      "L+ /usr/local/bin - - - - /run/current-system/sw/bin/"
+    ];
+
     networking = {
       inherit hostName;
       inherit (networking) defaultGateway nameservers;