[TRTLLM-5093][infra] Write env variables to a file in the interactive debug session (NVIDIA#6792)

Signed-off-by: Yiqing Yan <[email protected]>

Author: yiqingy0

jenkins/L0_Test.groovy

@@ -2321,6 +2321,10 @@ def runLLMTestlistOnPlatformImpl(pipeline, platform, testList, config=VANILLA_CO
                 chmod 600 ~/.ssh/authorized_keys
             """
 
+            // Write env variables to a file
+            sh 'env | sort | sed -E \'s/^([^=]+)=(.*)$/export \\1="\\2"/\' > debug_env.sh'
+            sh "cat debug_env.sh"
+
             // The portConfig file is in the VM
             def portConfigFilePath = "/root/.ssh/ports_config.txt"