b3ee9713f8
Add microbench-test target for quick test run Unify declaration and add assertions on target types Fix dirname usages for macos Parameter for docker_timeout Add more jmh class ignores (that are broken) Add disableResume() and better host debug to Jenkinsfile patch by Mick Semb Wever; reviewed by Dmitry Konstantinov for CASSANDRA-18873 |
||
|---|---|---|
| .. | ||
| README.md | ||
| agent-build.docker | ||
| jenkins-deployment-pvc.yaml | ||
| jenkins-deployment.yaml | ||
README.md
K8s Jenkins Installation
The files in this folder help provision ci-cassandra.a.o clones into any k8s cluster.
This is used by the .build/run-ci --only-setup script invocation, but can also be done manually.
One-time K8s Setup
This is a onetime setup required in a K8s cluster, required before executing .build/run-ci --only-setup script. It creates the needed node-pools for different resource sized agents used in jenkins.
# pick a cluster name that is identifiable to you
CLUSTER_NAME="$(whoami)--cassandra-jenkins"
Follow the instructions according to your cloud.
GCLOUD
# choose your closest (low-carbon) zone
ZONE="us-central1-c"
# cluster and controller node
gcloud container clusters create ${CLUSTER_NAME} --machine-type e2-standard-8 --disk-type=pd-ssd --num-nodes 1 --node-labels=cassandra.jenkins.controller=true --autoscaling-profile optimize-utilization --zone ${ZONE}
# small resource nodes
gcloud container node-pools create agents-small --cluster ${CLUSTER_NAME} --machine-type n2-highcpu-4 --disk-type=pd-ssd --enable-autoscaling --spot --num-nodes=0 --min-nodes=0 --max-nodes=50 --node-labels=cassandra.jenkins.agent=true,cassandra.jenkins.agent.small=true --zone ${ZONE}
# medium resource nodes
# preference (by cost): n2-highcpu-8, c3-highcpu-8, n4-highcpu-8, n1-highcpu-16
gcloud container node-pools create agents-medium --cluster ${CLUSTER_NAME} --machine-type n2-highcpu-8 --disk-type=pd-ssd --enable-autoscaling --spot --num-nodes=0 --min-nodes=0 --max-nodes=100 --node-labels=cassandra.jenkins.agent=true,cassandra.jenkins.agent.medium=true --zone ${ZONE}
# large resource nodes
gcloud container node-pools create agents-large --cluster ${CLUSTER_NAME} --machine-type n2-standard-8 --disk-type=pd-ssd --enable-autoscaling --spot --num-nodes=0 --min-nodes=0 --max-nodes=160 --node-labels=cassandra.jenkins.agent=true,cassandra.jenkins.agent.large=true --zone ${ZONE}
Manual Jenkins Helm Installation
To manually install Jenkins into a K8s cluster using the Helm yaml (rather than using the .build/run-ci --only-setup invocation).
# auth (and make default context)
gcloud container clusters get-credentials cassius --zone ${ZONE}
helm repo add jenkins https://charts.jenkins.io
helm repo update
helm upgrade --install -f jenkins-deployment.yaml cassius jenkins/jenkins --wait
# get the server's address
kubectl describe svc cassius-jenkins | grep 'LoadBalancer Ingress'
# get the jenkins' password
kubectl exec -it svc/cassius-jenkins -c jenkins -- /bin/cat /run/secrets/additional/chart-admin-password && echo
# open http://<server_address>
This leaves the controller running, a single e2-standard-8 instance. All other node-pools downscale to zero.
Local-only Access
If you want only local private access to Jenkins, do the following.
Comment these lines before running heml upgrade …
# serviceType: LoadBalancer
# ingress:
# enabled: "true"
Run the heml upgrade and get the password as usual
helm upgrade --install -f values.yaml cassius jenkins/jenkins --wait
# get the jenkins' password
kubectl exec -it svc/cassius-jenkins -c jenkins -- /bin/cat /run/secrets/additional/chart-admin-password && echo
# port-forward 8080 to the private jenkins
kubectl port-forward svc/cassius-jenkins 8080:8080
# open http://localhost:8080