Helm Chart
As per: https://docs.bitnami.com/kubernetes/how-to/create-your-first-helm-chart/
Step 1. Generate Your First Chart
helm create mychart
Helm will create a new directory in your project called mychart with the structure shown below.
mychart
|-- Chart.yaml
|-- charts
|-- templates
| |-- NOTES.txt
| |-- _helpers.tpl
| |-- deployment.yaml
| |-- ingress.yaml
| `-- service.yaml
`-- values.yaml
We can do a dry-run of a helm install and enable debug to inspect the generated definitions:
with a --generate-name flag
helm install --generate-name --dry-run --debug ./mychart
with a name
helm install miguel --dry-run --debug ./mychart
Step 2. Deploying Your First Chart
The chart you generated in the previous step is setup to run an NGINX server exposed via a Kubernetes Service. By default, the chart will create a ClusterIP type Service, so NGINX will only be exposed internally in the cluster. To access it externally, we’ll use the NodePort type instead.
helm install example3 ./mychart --set service.type=NodePort
Note: --set service.type=NodePort overrides the value found on line# 34 in the values.yaml
service:
type: ClusterIP
YOU MUST FORWARD THE PORT IN ORDER TO SEE IT IN THE BROWSER
kubectl port-forward svc/example3-mychart 7000:80
So now you have access to the cluster via: http://localhost:7000