Remove managed student assumptions from Lab 3 terminal

src/components/labs/Lab3TerminalFrame.test.tsx

@@ -5,7 +5,6 @@ import {
 } from "~/components/labs/Lab3TerminalFrame";
 import {
   LAB3_DEFAULT_TERMINAL_PATH,
-  LAB3_DEFAULT_WORKING_DIRECTORY,
   fetchLab3RuntimeConfig,
   getLab3TerminalPath,
   LAB3_RUNTIME_CONFIG_PATH,
@@ -27,11 +26,9 @@ describe("getLab3TerminalPath", () => {
 });
 
 describe("normalizeLab3RuntimeConfig", () => {
-  it("fills in the default student terminal metadata", () => {
+  it("fills in the default terminal path", () => {
     expect(normalizeLab3RuntimeConfig()).toEqual({
       terminalPath: LAB3_DEFAULT_TERMINAL_PATH,
-      username: "student",
-      workingDirectory: LAB3_DEFAULT_WORKING_DIRECTORY,
     });
   });
 });
@@ -48,8 +45,6 @@ describe("fetchLab3RuntimeConfig", () => {
         new Response(
           JSON.stringify({
             lab3TerminalUrl: "http://127.0.0.1:7681/wetty",
-            lab3Username: "student",
-            lab3WorkingDirectory: "/home/student/lab3",
           }),
           { status: 200 },
         ),
@@ -57,8 +52,6 @@ describe("fetchLab3RuntimeConfig", () => {
 
     await expect(fetchLab3RuntimeConfig()).resolves.toEqual({
       terminalPath: "http://127.0.0.1:7681/wetty",
-      username: "student",
-      workingDirectory: "/home/student/lab3",
     });
 
     expect(fetchMock).toHaveBeenCalledWith(LAB3_RUNTIME_CONFIG_PATH, {
@@ -82,7 +75,9 @@ describe("Lab3TerminalFrame", () => {
         return link.getAttribute("href") === "/lab-terminal";
       }),
     ).toBe(true);
-    expect(screen.getAllByText("/home/student/lab3")).toHaveLength(2);
+    expect(
+      screen.getByText(/log in with a local account that has/i),
+    ).toBeInTheDocument();
   });
 
   it("loads the terminal settings from the runtime config artifact", async () => {
@@ -90,8 +85,6 @@ describe("Lab3TerminalFrame", () => {
       new Response(
         JSON.stringify({
           lab3TerminalUrl: "http://127.0.0.1:7681/wetty",
-          lab3Username: "student",
-          lab3WorkingDirectory: "/srv/labs/lab3",
         }),
         { status: 200 },
       ),
@@ -105,8 +98,9 @@ describe("Lab3TerminalFrame", () => {
         "http://127.0.0.1:7681/wetty",
       );
     });
-
-    expect(screen.getAllByText("/srv/labs/lab3")).toHaveLength(2);
+    expect(
+      screen.getByText(/Sign in with any local account that can SSH/i),
+    ).toBeInTheDocument();
   });
 
   it("toggles the dock open and closed", () => {

src/components/labs/Lab3TerminalFrame.tsx

@@ -87,8 +87,8 @@ export function Lab3TerminalFrame({ srcPath }: Lab3TerminalFrameProps) {
           <h3>Use the lab shell directly in your browser</h3>
           <p className="lab3-terminal-inline__lede">
             The terminal is docked to the bottom of the page. Expand it with the
-            arrow when you&apos;re ready to log in as <code>{runtimeConfig.username}</code>{" "}
-            and work from <code>{runtimeConfig.workingDirectory}</code>.
+            arrow when you&apos;re ready to log in with a local account that has
+            password-based SSH access on this lab host.
           </p>
         </div>
 
@@ -140,9 +140,8 @@ export function Lab3TerminalFrame({ srcPath }: Lab3TerminalFrameProps) {
         <div className="lab3-terminal-dock__panel" id="lab3-terminal-dock-panel">
           <div className="lab3-terminal-dock__header">
             <p className="lab3-terminal-dock__lede">
-              Log in as <code>{runtimeConfig.username}</code>, work from{" "}
-              <code>{runtimeConfig.workingDirectory}</code>, or pop the terminal
-              out into a full tab for more room.
+              Sign in with any local account that can SSH into this machine, or
+              pop the terminal out into a full tab for more room.
             </p>
 
             {isConfigResolved ? (

src/lib/lab3-runtime.ts

@@ -1,18 +1,12 @@
 export const LAB3_DEFAULT_TERMINAL_PATH = "/wetty";
-export const LAB3_DEFAULT_USERNAME = "student";
-export const LAB3_DEFAULT_WORKING_DIRECTORY = "/home/student/lab3";
 export const LAB3_RUNTIME_CONFIG_PATH = "/courseware-runtime.json";
 
 export type Lab3RuntimeConfig = {
   lab3TerminalUrl?: string;
-  lab3Username?: string;
-  lab3WorkingDirectory?: string;
 };
 
 export type ResolvedLab3RuntimeConfig = {
   terminalPath: string;
-  username: string;
-  workingDirectory: string;
 };
 
 export function getLab3TerminalPath(envValue?: string) {
@@ -34,9 +28,6 @@ export function normalizeLab3RuntimeConfig(
 ): ResolvedLab3RuntimeConfig {
   return {
     terminalPath: getLab3TerminalPath(config?.lab3TerminalUrl),
-    username: config?.lab3Username?.trim() || LAB3_DEFAULT_USERNAME,
-    workingDirectory:
-      config?.lab3WorkingDirectory?.trim() || LAB3_DEFAULT_WORKING_DIRECTORY,
   };
 }