Google App Engine Flexible environment deployment failed using Google Cloud SDK from WINDOWS OS 10 - codeigniter

Question

My production site developed in CodeIgniter Frame work, It has more than 10k files, I deployed last week successfully without any issues. Today My deployment got failed, I just corrected one query in script.
I got the below issues
C:\myproject>gcloud app deploy --version 13 app.yaml
Services to deploy:
descriptor: [C:\myproject\app.yaml]
source: [C:\myproject]
target project: [xyz]
target service: [uat]
target version: [13]
target url: [https://uat-dot-xyz.appspot.com]
Do you want to continue (Y/n)? Y
Beginning deployment of service [uat]...
#============================================================#
#= Uploading 0 files to Google Cloud Storage =#
#============================================================#
File upload done.
ERROR: (gcloud.app.deploy) INVALID_ARGUMENT: This deployment has too many files. New versions are limited to 10000 files for this app.
- '#type': type.googleapis.com/google.rpc.BadRequest
fieldViolations:
- description: This deployment has too many files. New versions are limited to 10000
files for this app.
field: version.deployment.files[...]
I referred the below SO posting
gcloud app deploy failed because deployment has too many files for PHP CodeIgnitor files
gcloud app deploy : This deployment has too many files
Approaches for overcoming 10000 file limit on Google App Engine?
Communicating between google app engine services
I enabled .gcloudignore file as per the below and created in myproject
https://cloud.google.com/sdk/gcloud/reference/topic/gcloudignore
How to include files in .gcloudignore that are ignored in .gitignore
C:\>gcloud config set gcloudignore/enabled true
Updated property [gcloudignore/enabled].
C:\>gcloud config list
[accessibility]
screen_reader = False
[compute]
region = region-name
zone = zone-name
[core]
account = xyz#domainname.com
disable_usage_reporting = True
project = xyz
[gcloudignore]
enabled = true
My current Cloud SDK version is: 320.0.0
Installing components from version: 320.0.0
I could not find the solution. Why suddenly My deployment failed Using Gcloud SDK to GAE flexible environment ( Note: My project has more than 10 k files, Upto Last week I didnt get this issue)
Plz, Help me to solve this issue, If I miss anything in this,
Thanks in Advance.

Answer 1

It looks that there was a change on the way App Engine deploy the files.
Running the command gcloud config set app/trigger_build_server_side false solved the issue
Now on Dec 15 this change seems to be reverted and normal deploys should be working as before