Helm commands

To install helm chart

helm install -f myvalues.yaml myredis ./redis
or helm install --set name=prod myredis ./redis
or helm install --set-string long_int=1234567890 myredis ./redis
or helm install --set-file my_script=dothings.sh myredis ./redis

To install helm charts on specific namespace

helm install -f myvalues.yaml myredis ./redis -n nemespace_name

Which has highest Precedence if we pass multiple values.yaml

we can pass multiple values.yaml or –set , but which is the rightmost will have the precedence

helm install -f myvalues.yaml -f override.yaml  myredis ./redis

Dry-run

helm install -f myvalues.yaml myredis ./redis --dry-run

To delete helm chart

helm uninstall release_name
helm uninstall release_name --dry-run
helm uninstall release_name -n namespace_name (To delete helm chart which was installed on specific namespace)

To list the installed charts

helm list
helm list -n namespace_name (To list installed helm charts on specific namespace)

To timeout the helm install command

helm install -f values.yaml test . -n cnf --timeout 20s  (Default is 5 minutes if we didn't pass the --timeout parameter)

To get the config file(manifest) which we used during helm install

helm get manifest release_name
helm get manifest release_name -n namespace_name

To add a helm chart repo

helm repo add [NAME] [URL] [flags]
helm repo add bitnami https://charts.bitnami.com/bitnami

helm repo add - add a chart repository
helm repo index - generate an index file given a directory containing packaged charts
helm repo list - list chart repositories
helm repo remove - remove one or more chart repositories
helm repo update - update information of available charts locally from chart repositories

To search helm charts in that repo

helm search repo repo-name (eg. helm search repo bitnami/)

To search for mongodb chart

helm search repo bitnami/mango

To install helm plugin

helm plugin install https://github.com/helm/helm-2to3

To list installed plugin

helm plugin list

To add helm official stable repo

helm repo add stable https://charts.helm.sh/stable

To download only the values.yaml from chart

helm inspect values repo_name/chart_name > /tmp/values.yam (eg. helm inspect values stable/jenkins > /tmp/values.yaml)