GAE app "Push-to-deploy" failed for wordpress git - php

Question

I'm currently trying to set up a GAE push-to-deploy from my bitbucket wordpress repo.
Seems like all the needed steps for setting up jenkins on GCE were done, but build failed with OSError: [Errno 13] Permission denied: '/root/.config'
I think shell command: gcloud --project=projectjp01 preview app deploy . added to the build step caused problem. (looks like jenkins user cannot access root folder or log folder )
Could someone help me out successfully accomplishing this push-to-depoly process for GAE?
Any helps will be appreciated.
FYI, below are the console message for the build process:
Started by user User Name Building in workspace
/opt/bitnami/apps/jenkins/jenkins_home/jobs/firstjenkins/workspace
/opt/bitnami/git/bin/git rev-parse --is-inside-work-tree # timeout=10 Fetching changes from the remote Git repository
/opt/bitnami/git/bin/git config remote.origin.url https://source.developers.google.com/p/projectjp01 # timeout=10
Fetching upstream changes from
source.developers.google.com/p/projectname
/opt/bitnami/git/bin/git --version # timeout=10 using .gitcredentials to set credentials
/opt/bitnami/git/bin/git config --local credential.helper store --file=/opt/bitnami/apache-tomcat/temp/git2753293187622835876.credentials
timeout=10
/opt/bitnami/git/bin/git fetch --tags --progress
+refs/heads/:refs/remotes/origin/
/opt/bitnami/git/bin/git config --local --remove-section credential # timeout=10
/opt/bitnami/git/bin/git rev-parse refs/remotes/origin/master^{commit} # timeout=10
/opt/bitnami/git/bin/git rev-parse refs/remotes/origin/origin/master^{commit} > # timeout=10 Checking out
Revision 2297db6db06f19198dd3097e8db6b72687e8d433
(refs/remotes/origin/master)
/opt/bitnami/git/bin/git config core.sparsecheckout # timeout=10
/opt/bitnami/git/bin/git checkout -f 2297db6db06f19198dd3097e8db6b72687e8d433
/opt/bitnami/git/bin/git rev-list 2297db6db06f19198dd3097e8db6b72687e8d433 # timeout=10 [workspace] $
/bin/sh -xe
/opt/bitnami/apache-tomcat/temp/hudson1649832068994489242.sh
+ gcloud --project=projectname preview app deploy . Traceback (most recent call last): File
"/usr/local/bin/../share/google/google-cloud-sdk/./lib/googlecloudsdk/gcloud/gcloud.py",
line 177, in
_cli = CreateCLI() File "/usr/local/bin/../share/google/google-cloud-sdk/./lib/googlecloudsdk/gcloud/gcloud.py",
line 175, in CreateCLI
return loader.Generate() File "/usr/local/bin/../share/google/google-cloud-sdk/./lib/googlecloudsdk/calliope/cli.py",
line 236, in Generate
return self.__LoadCLIFromGroups() File "/usr/local/bin/../share/google/google-cloud-sdk/./lib/googlecloudsdk/calliope/cli.py",
line 280, in __LoadCLIFromGroups
cli = self.__MakeCLI(top_group) File "/usr/local/bin/../share/google/google-cloud-sdk/./lib/googlecloudsdk/calliope/cli.py",
line 442, in __MakeCLI
log.AddFileLogging(self.__logs_dir) File "/usr/local/bin/../share/google/google-cloud-sdk/./lib/googlecloudsdk/core/log.py",
line 532, in AddFileLogging
_log_manager.AddLogsDir(logs_dir=logs_dir) File "/usr/local/bin/../share/google/google-cloud-sdk/./lib/googlecloudsdk/core/log.py",
line 316, in AddLogsDir
log_file = self._SetupLogsDir(logs_dir) File "/usr/local/bin/../share/google/google-cloud-sdk/./lib/googlecloudsdk/core/log.py",
line 393, in _SetupLogsDir
os.makedirs(day_dir_path) File "/usr/lib/python2.7/os.py", line 150, in makedirs
makedirs(head, mode) File "/usr/lib/python2.7/os.py", line 150, in makedirs
makedirs(head, mode) File "/usr/lib/python2.7/os.py", line 150, in makedirs
makedirs(head, mode) File "/usr/lib/python2.7/os.py", line 157, in makedirs
mkdir(name, mode) OSError: [Errno 13] Permission denied: '/root/.config' Build step 'Execute shell' marked build as failure
Finished: FAILURE

Answer 1

I found out myself. All the problem comes from permission setting.
gcloud should be run as sudo but the tomcat (jenkins) configured to disable the sudo by default.
So I ssh to the GCE server where jenkins are running, open(create) file with:
sudo vi /etc/sudoers.d/tomcat
and then put this line:
tomcat ALL=(ALL) NOPASSWD: ALL
that's it. I can build & deploy without problem now.