Support passing through k3s “disable” config

Author: nktpro

examples/local.ts

@@ -1,3 +1,5 @@
+import { InstanceConfig } from "../src/types.ts";
+
 export default {
   name: "local",
   image: "focal",
@@ -9,9 +11,13 @@ export default {
   serviceCidr: "10.254.255.0/24",
   clusterDnsIp: "10.254.255.10",
   clusterDomain: "jetski.local",
+  disableComponents: {
+    traefik: true,
+    metricsServer: true
+  },
   nodeLabels: {
     "com.jetski/foo": "bar",
     "com.jetski/baz": "boo",
   },
   sshDirectoryPath: "./local/.ssh",
-};
+} as InstanceConfig;

src/types.ts

@@ -20,6 +20,13 @@ export const InstanceConfigSchema = Type.Object({
   serviceCidr: Cidr,
   clusterDnsIp: Ipv4,
   clusterDomain: Type.String({ format: "hostname", minLength: 1 }),
+  disableComponents: Type.Optional(Type.Object({
+    coredns: Type.Optional(Type.Boolean()),
+    servicelb: Type.Optional(Type.Boolean()),
+    traefik: Type.Optional(Type.Boolean()),
+    localStorage: Type.Optional(Type.Boolean()),
+    metricsServer: Type.Optional(Type.Boolean()),
+  })),
   nodeLabels: Type.Optional(Type.Record(Type.String(), Type.String())),
   sshDirectoryPath: NonEmptyString,
 });

src/utils.ts

@@ -83,12 +83,20 @@ export async function generateSshKeyPairIfNotExists(
 export function createCloudInitConfig(
   {
     sshPublicKey,
-    instance: { clusterCidr, serviceCidr, clusterDnsIp, clusterDomain, k3sVersion },
+    instance: { clusterCidr, serviceCidr, clusterDnsIp, clusterDomain, k3sVersion, disableComponents },
   }: {
     sshPublicKey: string;
     instance: InstanceConfig;
   },
 ) {
+  const k3sConfigDisable = [
+    ...(disableComponents?.coredns ? ["coredns"] : []),
+    ...(disableComponents?.localStorage ? ["local-storage"] : []),
+    ...(disableComponents?.metricsServer ? ["metrics-server"] : []),
+    ...(disableComponents?.servicelb ? ["servicelb"] : []),
+    ...(disableComponents?.traefik ? ["traefik"] : []),
+  ];
+
   return {
     users: [
       "default",
@@ -113,6 +121,7 @@ export function createCloudInitConfig(
           "service-cidr": serviceCidr,
           "cluster-dns": clusterDnsIp,
           "cluster-domain": clusterDomain,
+          "disable": k3sConfigDisable,
         }),
       },
       {