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kubectl

...

helm

Using Helm Basics

List

List everything installed with helm on the current cluster

$ helm list --all-namespaces

NAME                    NAMESPACE       REVISION        UPDATED                                 STATUS          CHART                           APP VERSION
cert-manager            cert-manager    1               2023-06-16 23:54:26.4188824 +0200 CEST  deployed        cert-manager-v1.12.0            v1.12.0
ingress-nginx           ingress-nginx   1               2023-06-16 23:56:29.0936339 +0200 CEST  deployed        ingress-nginx-4.6.1             1.7.1
kube-prometheus-stack   monitoring      2               2023-06-17 00:45:01.7381121 +0200 CEST  deployed        kube-prometheus-stack-46.8.0    v0.65.2
longhorn                longhorn-system 1               2023-06-17 10:19:09.5922474 +0200 CEST  deployed        longhorn-1.4.2                  v1.4.2

History

Search all revisions of a release

## Example for metallb
$ helm history metallb --namespace metallb-system

REVISION        UPDATED                         STATUS          CHART           APP VERSION     DESCRIPTION
1               Sun Jun 25 00:55:12 2023        superseded      metallb-0.13.10 v0.13.10        Install complete
2               Sun Jun 25 12:29:55 2023        superseded      metallb-0.13.10 v0.13.10        Upgrade complete
3               Sun Jun 25 12:52:05 2023        deployed        metallb-0.13.10 v0.13.10        Upgrade complete

Show the values of a specific deployment revision:

helm get values --revision=3 metallb --namespace metallb-system

USER-SUPPLIED VALUES:
controller:
  nodeSelector:
    node-role.kubernetes.io/metallb-controller: "true"
  tolerations:
  - effect: NoExecute
    key: CriticalAddonsOnly
    operator: Exists
  - effect: NoSchedule
    key: CriticalAddonsOnly
    operator: Exists
loadBalancerClass: metallb
speaker:
  frr:
    enabled: false

Search with helm

  • helm search hub searches the Artifact Hub, which lists helm charts from dozens of different repositories.
  • helm search repo searches the repositories that you have added to your local helm client (with helm repo add). This search is done over local data, and no public network connection is needed.

List all publicaly available wordpress packages:

helm search hub wordpress

Search for all available versions of a particular package

helm search repo prometheus-community --versions