Deploy with helm charts - no template

README.md

@@ -52,6 +52,56 @@ minikube service text-compare-service
 # 4. Web browser will be opened automatically to access the site.
 ```
 
+# Use helm with k8s
+
+Create helm chart with the following command.
+
+```sh
+helm create deployment
+```
+
+Then, edit the deployment file, service and config map file accordingly.
+
+After editing all configuration files, install with helm.
+
+```sh
+helm install compare-helm deployment
+```
+
+Helm will create k8s components based on the configuration files. Use `kubectl get all | grep helm` to find them.
+
+```sh
+kubectl get all | grep helm
+pod/compare-helm-76b67b5db6-r6jwq 1/1 Running 0 12m
+service/compare-helm ClusterIP 10.97.189.245 <none> 80/TCP 12m
+deployment.apps/compare-helm 1/1 1 1 12m
+replicaset.apps/compare-helm-76b67b5db6 1 1 1 12m
+```
+
+If you make any change to the configuration files, use the following command to upgrade.
+
+```sh
+helm upgrade compare-helm deployment
+```
+
+List all deployed namespaces.
+
+```sh
+helm ls --all-namespaces
+NAME	NAMESPACE	REVISION	UPDATED	STATUS	CHART	APP VERSION
+compare-helm	default	2	2024-01-07 21:05:52.849445 -0800 PST	deployed	deployment-0.1.0	1.16.0
+text-compare	bit-developer	1	2024-01-07 20:50:29.372749 -0800 PST	deployed	deployment-0.1.0	1.16.0
+text-compare	default	1	2024-01-07 20:42:49.758154 -0800 PST	failed	deployment-0.1.0	1.16.0
+```
+
+Start the service to view the web app in brower.
+
+```sh
+minikube service compare-helm
+```
+
+- [How to Create Helm Charts - The Ultimate Guide](https://www.youtube.com/watch?v=jUYNS90nq8U&ab_channel=DevOpsJourney)
+
 # Deployment
 Read tutorial [Deploying Text Compare Angular App to Docker](https://jojozhuang.github.io/tutorial/deploying-text-compare-angular-app-to-docker) to learn how this angular app is deployed to Docker.
 

deployment/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

deployment/Chart.yaml

@@ -0,0 +1,24 @@
+apiVersion: v2
+name: deployment
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "1.16.0"

deployment/templates/configmap.yaml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: ConfigMap
+metadata:
+ name: compare-configmap
+ #namespace: bit-developer
+data:
+ ENV_NAME: 'DEV'

deployment/templates/service.yaml

@@ -0,0 +1,15 @@
+apiVersion: v1
+kind: Service
+metadata:
+ name: compare-helm
+ #namespace: bit-developer
+ labels:
+ app: compare-helm
+spec:
+ selector:
+ app: compare-helm
+ tier: frontend
+ ports:
+ - protocol: TCP
+ port: 80
+ type: NodePort

deployment/templates/text-compare.yaml

@@ -0,0 +1,31 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+ name: compare-helm
+ #namespace: bit-developer
+ labels:
+ app: compare-helm
+spec:
+ replicas: 1
+ selector:
+ matchLabels:
+ app: compare-helm
+ tier: frontend
+ template:
+ metadata:
+ labels:
+ app: compare-helm
+ tier: frontend
+ spec: # Pod spec
+ containers:
+ - name: compare-helm
+ image: jojozhuang/text-compare-angular
+ ports:
+ - containerPort: 80
+ resources:
+ requests:
+ memory: "16Mi"
+ cpu: "50m" # 500milliCPUs (1/2 CPU)
+ limits:
+ memory: "128Mi"
+ cpu: "100m"