How do we find ECK helm chart and how do we modify that cart?
Install ECK using Helm Chart is the documentation that should help you.
how to add storageclass & pvc in repo cloud-on-k8s/deploy/eck-operator at 2.0 · elastic/cloud-on-k8s · GitHub ?
I tried adding storageclass & pvc in my local but it is throwing below error:-
Error: INSTALLATION FAILED: failed to download "eck-operator"
how to add storageclass & pvc in repo cloud-on-k8s/deploy/eck-operator at 2.0 · elastic/cloud-on-k8s · GitHub ?
I am not sure to understand the question. Is it how to use PVC and custom storageClass with ECK?
This documentation addresses that: Volume claim templates | Elastic Cloud on Kubernetes [master] | Elastic.
PVC are managed by ECK. You shouldn't need to add any. Using a custom StorageClass is optional. If you want to use one, adding it to the k8s cluster is not related to ECK, see the k8s documentation.