Below is screenshot of reference but not able to get exact what need to get temporary password from mention path.
These are guidelines given :
Next steps
Prerequisites You'll need the following tools in your environment:
gcloud: if gcloud has not been configured yet, then configure gcloud by following the gcloud Quickstart. kubectl: set kubectl to a specific cluster by following the steps at container get-credentials. sed Accessing your Jenkins instance NOTE: For HTTPS, you must accept a temporary TLS certificate.
Read a temporary password:
$(kubectl -ndefault get pod -oname | sed -n /\\/jenkins-job-jenkins/s.pods\\?/..p) \
cat /var/jenkins_home/secrets/initialAdminPassword
Identify the HTTPS endpoint:
echo https://$(kubectl -ndefault get ingress -l "app.kubernetes.io/name=jenkins-job" -ojsonpath="{.items[0].status.loadBalancer.ingress[0].ip}")/
Navigate to the endpoint.
Configuring your Jenkins instance Follow the on-screen instructions to fully configure your Jenkins instance:
Install plugins
Create a first admin user
Set your Jenkins URL (you can choose to start with the default URL and change it later)
Start using your fresh Jenkins installation!
For further information, refer to the Jenkins website or this project GitHub page.
