tree dcb176c9fe3f8a3b0b53b4283828a93cce58fc9a
parent 7fef61dd9ecafe02e7ca3078e50d4656c0dbfa35
author He Gao <hegao@google.com> 1662757292 +0000
committer He Gao <hegao@google.com> 1662762308 +0000

cos-gpu-installer: reference locked file in the main function

Sending https requests might trigger Go garbage collection and
close unrefernced locked file so that the lock is released.
This results in allowing two installer instances running in one VM.

This CL makes the main function reference the locked file
and explicitly close it so that the lock won't be accidentally
released.

BUG=b/237702412
TEST=Repeatedly trying to start a second installer during
the driver installation process.

Change-Id: I2654c2d280eebc64815849820a31aef774ad96fa
Reviewed-on: https://cos-review.googlesource.com/c/cos/tools/+/36867
Tested-by: He Gao <hegao@google.com>
Cloud-Build: GCB Service account <228075978874@cloudbuild.gserviceaccount.com>
Reviewed-by: Robert Kolchmeyer <rkolchmeyer@google.com>
Reviewed-by: Arnav Kansal <rnv@google.com>