fix(amazonq): enable agentic chat in AL2

packages/amazonq/.changes/next-release/Bug Fix-534a4369-a0e1-4789-9f55-fa172b9fb93f.json

@@ -0,0 +1,4 @@
+{
+	"type": "Bug Fix",
+	"description": "Enable Amazon Q LSP in AL2 instances"
+}

packages/amazonq/src/extension.ts

@@ -33,6 +33,7 @@ import {
     maybeShowMinVscodeWarning,
     Experiments,
     isSageMaker,
+    isAmazonInternalOs,
 } from 'aws-core-vscode/shared'
 import { ExtStartUpSources } from 'aws-core-vscode/telemetry'
 import { VSCODE_EXTENSION_ID } from 'aws-core-vscode/utils'
@@ -43,7 +44,7 @@ import { registerCommands } from './commands'
 import { focusAmazonQPanel } from 'aws-core-vscode/codewhispererChat'
 import { activate as activateAmazonqLsp } from './lsp/activation'
 import { activate as activateInlineCompletion } from './app/inline/activation'
-import { isAmazonInternalOs } from 'aws-core-vscode/shared'
+import { hasGlibcPatch } from './lsp/client'
 
 export const amazonQContextPrefix = 'amazonq'
 
@@ -122,9 +123,10 @@ export async function activateAmazonQCommon(context: vscode.ExtensionContext, is
     await activateCodeWhisperer(extContext as ExtContext)
     if (
         (Experiments.instance.get('amazonqLSP', true) || Auth.instance.isInternalAmazonUser()) &&
-        !isAmazonInternalOs()
+        (!isAmazonInternalOs() || (await hasGlibcPatch()))
     ) {
         // start the Amazon Q LSP for internal users first
+        // for AL2, start LSP if glibc patch is found
         await activateAmazonqLsp(context)
     }
     if (!Experiments.instance.get('amazonqLSPInline', false)) {

packages/amazonq/src/lsp/client.ts

@@ -6,6 +6,7 @@
 import vscode, { env, version } from 'vscode'
 import * as nls from 'vscode-nls'
 import * as crypto from 'crypto'
+import * as path from 'path'
 import { LanguageClient, LanguageClientOptions, RequestType, State } from 'vscode-languageclient'
 import { InlineCompletionManager } from '../app/inline/completion'
 import { AmazonQLspAuth, encryptionKey, notificationTypes } from './auth'
@@ -32,14 +33,21 @@ import {
     getLogger,
     undefinedIfEmpty,
     getOptOutPreference,
+    isAmazonInternalOs,
+    fs,
 } from 'aws-core-vscode/shared'
 import { activate } from './chat/activation'
 import { AmazonQResourcePaths } from './lspInstaller'
 import { ConfigSection, isValidConfigSection, toAmazonQLSPLogLevel } from './config'
+import { chmodSync } from 'fs' // eslint-disable-line no-restricted-imports
 
 const localize = nls.loadMessageBundle()
 const logger = getLogger('amazonqLsp.lspClient')
 
+export async function hasGlibcPatch(): Promise<boolean> {
+    return await fs.exists('/opt/vsc-sysroot/lib64/ld-linux-x86-64.so.2')
+}
+
 export async function startLanguageServer(
     extensionContext: vscode.ExtensionContext,
     resourcePaths: AmazonQResourcePaths
@@ -55,18 +63,32 @@ export async function startLanguageServer(
         '--pre-init-encryption',
         '--set-credentials-encryption-key',
     ]
+
+    const documentSelector = [{ scheme: 'file', language: '*' }]
+
+    const clientId = 'amazonq'
+    const traceServerEnabled = Settings.instance.isSet(`${clientId}.trace.server`)
+
+    // apply the GLIBC 2.28 path to node js runtime binary
+    if (isAmazonInternalOs() && (await hasGlibcPatch())) {
+        const nodeWrapper = `
+        #! /bin/bash
+        exec /opt/vsc-sysroot/lib64/ld-linux-x86-64.so.2 --library-path /opt/vsc-sysroot/lib64 ${resourcePaths.node} "$@"
+        `
+        const nodeWrapperPath = path.join(path.dirname(resourcePaths.node), 'node-wrapper')
+        await fs.writeFile(nodeWrapperPath, nodeWrapper)
+        chmodSync(nodeWrapperPath, 0o755)
+        resourcePaths.node = nodeWrapperPath
+        getLogger('amazonqLsp').info(`Patched node runtime with GLIBC to ${resourcePaths.node}`)
+    }
+
     const serverOptions = createServerOptions({
         encryptionKey,
         executable: resourcePaths.node,
         serverModule,
         execArgv: argv,
     })
 
-    const documentSelector = [{ scheme: 'file', language: '*' }]
-
-    const clientId = 'amazonq'
-    const traceServerEnabled = Settings.instance.isSet(`${clientId}.trace.server`)
-
     await validateNodeExe(resourcePaths.node, resourcePaths.lsp, argv, logger)
 
     // Options to control the language client