cslauritsen/HELM_CHEATSHEET.md

## HELM_CHEATSHEET.md

      
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              HELM_CHEATSHEET.md
            
          
    Helm Cheatsheet

Variables

export NAMESPACE=trn-chad
export RELNAME=nginx-a
export CHART=oci://registry-1.docker.io/bitnamicharts/nginx
export CHARTVER=15.3.1

Lookup a kube context with
kubectl config get-contexts

And set a variable for the following commands
export KUBECONTEXT=...

Display Information in a Release

Manifests

helm --kube-context=${KUBECONTEXT:-invalid} -n $NAMESPACE get manifest $RELNAME 

Values

helm --kube-context=${KUBECONTEXT:-invalid} -n $NAMESPACE get values $RELNAME 

Everything

helm --kube-context=${KUBECONTEXT:-invalid} -n $NAMESPACE get all $RELNAME 

Changing a Release

To replace all values, losing what was part of the previous revision:
helm --kube-context=${KUBECONTEXT:-invalid} -n $NAMESPACE \
 upgrade $RELNAME $CHART \
 --version $CHARTVER \
 --values /tmp/some-values.yaml

To reuse existing values, replacing only ones specified:
helm --kube-context=${KUBECONTEXT:-invalid} -n $NAMESPACE \
 upgrade $RELNAME $CHART \
 --version $CHARTVER \
 --reuse-values \
 --set x.y=z

Using Helm Dashboard (Optional GUI)

helm plugin install https://github.com/komodorio/helm-dashboard.git
helm plugin update dashboard
helm dashboard