This is a small application which contains main and test folders.
Main contains application code.
Test contains test cases.
It also contains pom.xml which has all dependencies and artifact name and version
sudo amazon-linux-extras enable java-openjdk11 sudo yum install java-11-openjdk-devel
/usr/lib/jvm/java-11-openjdk-11.0.22.0.7-1.amzn2.0.1.x86_64/bin/java
def server = Artifactory.newServer url: 'artifactory-url', credentialsId: 'ccrreeddeennttiiaall'
// If Jenkins is configured to use an http proxy, you can bypass the proxy when using this Artifactory server:
server.bypassProxy = true
// If you're using username and password:
server.username = 'new-user-name'
server.password = 'new-password'
// If you're using Credentials ID:
server.credentialsId = 'ccrreeddeennttiiaall'
// Configure the connection timeout (in seconds).
// The default value (if not configured) is 300 seconds:
server.connection.timeout = 300
def uploadSpec = """{
"files": [
{
"pattern": "bazinga/*froggy*.zip",
"target": "bazinga-repo/froggy-files/"
}
]
}"""
server.upload spec: uploadSpec helm version
version.BuildInfo{Version:"v3.14.3", GitCommit:"f03cc04caaa8f6d7c3e67cf918929150cf6f3f12", GitTreeState:"clean", GoVersion:"go1.21.7"}
helm ls
NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
K8s:>$
helm ls
# <!-- NAME NAMESPACE REVISION UPDATED STATUS CHART APP VERSION
# agtapp-v1.0 default 1 2024-04-07 04:04:59.029046335 +0000 UTC deployed agtapp-0.1.0 1.16.0 -->
helm uninstall agtapp-v1.0
# release "agtapp-v1.0" uninstalled-
To create a helm chart template
helm create agtapp
by default, it contains
- values.yaml
- templates
- Charts.yaml
- charts
-
Replace the template directory with the manifest files and package it
helm package agtapp <!-- Successfully packaged chart and saved it to: /home/ec2-user/kubernetes/a02_deploy_with_helm_charts/agtapp-0.1.0.tgz -->
-
Change the version number in the
helm install agtapp agtapp-0.1.0.tgz
-
Create a jenkins job for the deployment
stage(" Deploy ") { steps { script { echo '<--------------- Helm Deploy Started --------------->' sh 'helm install agtapp agtapp-0.1.0.tgz' echo '<--------------- Helm deploy Ends --------------->' } } }
-
To list installed helm deployments
helm list -a
Other useful commands
- to change the default namespace to valaxy
kubectl config set-context --current --namespace=dev
- Kubernetes cluster
- helm
kubectl get all
helm version- Create a dedicated namespace for prometheus
kubectl create namespace monitoring- Add Prometheus helm chart repository
helm repo add prometheus-community https://prometheus-community.github.io/helm-charts - Update the helm chart repository
helm repo update
helm repo list- Install the prometheus
helm install prometheus prometheus-community/kube-prometheus-stack --namespace monitoring- Above helm create all services as ClusterIP. To access Prometheus out side of the cluster, we should change the service type load balancer
kubectl edit svc prometheus-kube-prometheus-prometheus -n monitoring
-
Loginto Prometheus dashboard to monitor application https://ELB:9090
-
Check for node_load15 executor to check cluster monitoring
- We check similar graphs in the Grafana dashboard itself. for that, we should change the service type of Grafana to LoadBalancer
kubectl edit svc prometheus-grafana --namespace monitoring-
To login to Grafana account, use the below username and password
username: admin password: prom-operator
-
Here we should check for "Node Exporter/USE method/Node" and "Node Exporter/USE method/Cluster" USE - Utilization, Saturation, Errors
-
Even we can check the behavior of each pod, node, and cluster
kubectl get all -n monitoring
NAME READY STATUS RESTARTS AGE
pod/alertmanager-prometheus-kube-prometheus-alertmanager-0 2/2 Running 0 36m
pod/prometheus-grafana-86b6d8f896-x9zg9 3/3 Running 0 36m
pod/prometheus-kube-prometheus-operator-54577f779b-w7b7q 1/1 Running 0 36m
pod/prometheus-kube-state-metrics-c8f945cbb-d4kzk 1/1 Running 0 36m
pod/prometheus-prometheus-kube-prometheus-prometheus-0 2/2 Running 0 36m
pod/prometheus-prometheus-node-exporter-52hmk 1/1 Running 0 36m
pod/prometheus-prometheus-node-exporter-bb9wf 1/1 Running 0 36m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
service/alertmanager-operated ClusterIP None <none> 9093/TCP,9094/TCP,9094/UDP 36m
service/prometheus-grafana ClusterIP 10.100.37.33 <none> 80/TCP 36m
service/prometheus-kube-prometheus-alertmanager ClusterIP 10.100.171.212 <none> 9093/TCP,8080/TCP 36m
service/prometheus-kube-prometheus-operator ClusterIP 10.100.105.228 <none> 443/TCP 36m
service/prometheus-kube-prometheus-prometheus ClusterIP 10.100.182.54 <none> 9090/TCP,8080/TCP 36m
service/prometheus-kube-state-metrics ClusterIP 10.100.95.67 <none> 8080/TCP 36m
service/prometheus-operated ClusterIP None <none> 9090/TCP 36m
service/prometheus-prometheus-node-exporter ClusterIP 10.100.86.200 <none> 9100/TCP 36m
NAME DESIRED CURRENT READY UP-TO-DATE AVAILABLE NODE SELECTOR AGE
daemonset.apps/prometheus-prometheus-node-exporter 2 2 2 2 2 kubernetes.io/os=linux 36m
NAME READY UP-TO-DATE AVAILABLE AGE
deployment.apps/prometheus-grafana 1/1 1 1 36m
deployment.apps/prometheus-kube-prometheus-operator 1/1 1 1 36m
deployment.apps/prometheus-kube-state-metrics 1/1 1 1 36m
NAME DESIRED CURRENT READY AGE
replicaset.apps/prometheus-grafana-86b6d8f896 1 1 1 36m
replicaset.apps/prometheus-kube-prometheus-operator-54577f779b 1 1 1 36m
replicaset.apps/prometheus-kube-state-metrics-c8f945cbb 1 1 1 36m
NAME READY AGE
statefulset.apps/alertmanager-prometheus-kube-prometheus-alertmanager 1/1 36m
statefulset.apps/prometheus-prometheus-kube-prometheus-prometheus 1/1 36m
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