Fix Lens not clearing other KUBECONFIG env vars

Signed-off-by: Sebastian Malton <sebastian@malton.name>

package.json

@@ -223,7 +223,7 @@
     "mobx-react": "^6.2.2",
     "mock-fs": "^4.12.0",
     "moment": "^2.26.0",
-    "node-pty": "^0.9.0",
+    "node-pty": "^0.10.0",
     "npm": "^6.14.8",
     "openid-client": "^3.15.2",
     "p-limit": "^3.1.0",

src/main/__test__/shell-session.test.ts

@@ -0,0 +1,19 @@
+/**
+ * @jest-environment jsdom
+ */
+
+import { clearKubeconfigEnvVars } from "../shell-session";
+
+describe("clearKubeconfigEnvVars tests", () => {
+  it("should not touch non kubeconfig keys", () => {
+    expect(clearKubeconfigEnvVars({ a: 1 })).toStrictEqual({ a: 1 });
+  });
+
+  it("should remove a single kubeconfig key", () => {
+    expect(clearKubeconfigEnvVars({ a: 1, kubeconfig: "1" })).toStrictEqual({ a: 1 });
+  });
+
+  it("should remove a two kubeconfig key", () => {
+    expect(clearKubeconfigEnvVars({ a: 1, kubeconfig: "1", kUbeconfig: "1" })).toStrictEqual({ a: 1 });
+  });
+});

src/main/shell-session.ts

@@ -12,6 +12,23 @@ import { isWindows } from "../common/vars";
 import { appEventBus } from "../common/event-bus";
 import { userStore } from "../common/user-store";
 
+const anyKubeconfig = /^kubeconfig$/i;
+
+/**
+ * This function deletes all keys of the form /^kubeconfig$/i, returning a new
+ * object.
+ *
+ * This is needed because `kubectl` checks for other version of kubeconfig
+ * before KUBECONFIG and we only set KUBECONFIG.
+ * @param env The current copy of env
+ */
+export function clearKubeconfigEnvVars(env: Record<string, any>): Record<string, any> {
+  return Object.fromEntries(
+    Object.entries(env)
+      .filter(([key]) => anyKubeconfig.exec(key) === null)
+  );
+}
+
 export class ShellSession extends EventEmitter {
   static shellEnvs: Map<string, any> = new Map();
 
@@ -103,7 +120,7 @@ export class ShellSession extends EventEmitter {
   }
 
   protected async getShellEnv() {
-    const env = JSON.parse(JSON.stringify(await shellEnv()));
+    const env = clearKubeconfigEnvVars(JSON.parse(JSON.stringify(await shellEnv())));
     const pathStr = [this.kubectlBinDir, this.helmBinDir, process.env.PATH].join(path.delimiter);
 
     if(isWindows) {
@@ -132,6 +149,7 @@ export class ShellSession extends EventEmitter {
     }
 
     env["PTYPID"] = process.pid.toString();
+
     env["KUBECONFIG"] = this.kubeconfigPath;
     env["TERM_PROGRAM"] = app.getName();
     env["TERM_PROGRAM_VERSION"] = app.getVersion();

yarn.lock

@@ -9533,10 +9533,10 @@ node-notifier@^7.0.0:
     uuid "^7.0.3"
     which "^2.0.2"
 
-node-pty@^0.9.0:
+node-pty@^0.10.0:
-  version "0.9.0"
+  version "0.10.0"
-  resolved "https://registry.yarnpkg.com/node-pty/-/node-pty-0.9.0.tgz#8f9bcc0d1c5b970a3184ffd533d862c7eb6590a6"
+  resolved "https://registry.yarnpkg.com/node-pty/-/node-pty-0.10.0.tgz#c98d23967b076b35c9fb216c542a04d0b5db4821"
-  integrity sha512-MBnCQl83FTYOu7B4xWw10AW77AAh7ThCE1VXEv+JeWj8mSpGo+0bwgsV+b23ljBFwEM9OmsOv3kM27iUPPm84g==
+  integrity sha512-Q65ookKbjhqWUYKmtZ6iPn0nnqNdzpm3YJOBmzwWJde/TrenBxK9FgqGGtSW0Wjz4YsR1grQF4a7RS5nBwuW9A==
   dependencies:
     nan "^2.14.0"