use @kubernetes/client-node to generate default config (#51)

package.json

@@ -18,16 +18,16 @@
   "dependencies": {
     "@actions/core": "^1.2.6",
     "@actions/exec": "^1.0.0",
-    "@actions/tool-cache": "^1.0.0",
+    "@actions/io": "^1.1.2",
     "@kubernetes/client-node": "^0.16.0",
-    "js-yaml": "^3.13.1"
+    "js-yaml": "^4.1.0"
   },
   "devDependencies": {
-    "@types/jest": "^25.2.2",
+    "@types/jest": "^28.1.2",
     "@types/js-yaml": "^4.0.4",
-    "@types/node": "^12.0.4",
-    "jest": "^26.6.3",
-    "ts-jest": "^25.5.1",
-    "typescript": "3.9.2"
+    "@types/node": "^16.0.0",
+    "jest": "^28.1.1",
+    "ts-jest": "^28.0.5",
+    "typescript": "4.7.4"
   }
 }

src/kubeconfigs/default.test.ts

@@ -14,19 +14,27 @@ describe("Default kubeconfig", () => {
       kind: "Config",
       clusters: [
         {
+          name: "default",
           cluster: {
-            "certificate-authority-data": certAuth,
             server: clusterUrl,
+            "certificate-authority-data": certAuth,
+            "insecure-skip-tls-verify": false,
           },
         },
       ],
-      users: [
+      users: [{ name: "default-user", user: { token } }],
+      contexts: [
         {
-          user: {
-            token: token,
+          name: "loaded-context",
+          context: {
+            cluster: "default",
+            user: "default-user",
+            name: "loaded-context",
           },
         },
       ],
+      preferences: {},
+      "current-context": "loaded-context",
     });
 
     expect(kc).toBe(expected);
@@ -108,20 +116,34 @@ describe("Default kubeconfig", () => {
         kind: "Config",
         clusters: [
           {
+            name: "default",
             cluster: {
-              "certificate-authority-data": cert,
               server: k8sUrl,
+              "certificate-authority-data": cert,
+              "insecure-skip-tls-verify": false,
             },
           },
         ],
         users: [
           {
-            user: {
-              token: Buffer.from(token, "base64").toString(),
+            name: "default-user",
+            user: { token: Buffer.from(token, "base64").toString() },
+          },
+        ],
+        contexts: [
+          {
+            name: "loaded-context",
+            context: {
+              cluster: "default",
+              user: "default-user",
+              name: "loaded-context",
             },
           },
         ],
+        preferences: {},
+        "current-context": "loaded-context",
       });
+
       expect(getDefaultKubeconfig()).toBe(expectedConfig);
     });
   });

src/kubeconfigs/default.ts

@@ -1,5 +1,6 @@
 import * as core from "@actions/core";
 import * as jsyaml from "js-yaml";
+import { KubeConfig } from "@kubernetes/client-node";
 import { K8sSecret, parseK8sSecret } from "../types/k8sSecret";
 import { Method, parseMethod } from "../types/method";
 
@@ -58,25 +59,18 @@ export function createKubeconfig(
   token: string,
   clusterUrl: string
 ): string {
-  const kubeconfig = {
-    apiVersion: "v1",
-    kind: "Config",
-    clusters: [
+  const kc = new KubeConfig();
+  kc.loadFromClusterAndUser(
     {
-        cluster: {
-          "certificate-authority-data": certAuth,
+      name: "default",
       server: clusterUrl,
+      caData: certAuth,
+      skipTLSVerify: false,
     },
-      },
-    ],
-    users: [
     {
-        user: {
-          token: token,
-        },
-      },
-    ],
-  };
-
-  return JSON.stringify(kubeconfig);
+      name: "default-user",
+      token,
+    }
+  );
+  return kc.exportConfig();
 }