{"id":41449,"date":"2023-11-30T10:43:59","date_gmt":"2023-11-30T10:43:59","guid":{"rendered":"https:\/\/www.devopsschool.com\/blog\/?p=41449"},"modified":"2023-12-01T04:53:08","modified_gmt":"2023-12-01T04:53:08","slug":"helm-commands-reference","status":"publish","type":"post","link":"https:\/\/www.devopsschool.com\/blog\/helm-commands-reference\/","title":{"rendered":"Helm Commands Reference"},"content":{"rendered":"\n

Basic Commands<\/h2>\n\n\n\n
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  1. helm install<\/strong>: This command is used to install a chart and create a new release. Example: helm install my-release stable\/mysql<\/code>Use case: Installing a MySQL database using the stable\/mysql chart.<\/li>\n\n\n\n
  2. helm upgrade<\/strong>: This command is used to upgrade a release to a new version of a chart or modify its configuration.Example: helm upgrade my-release stable\/mysql --set mysqlRootPassword=newpassword<\/code>Use case: Upgrading the my-release MySQL database to a new version and changing the root password.<\/li>\n\n\n\n
  3. helm rollback<\/strong>: This command is used to roll back a release to a previous version.Example: helm rollback my-release 1<\/code> Use case: Reverting the my-release MySQL database to version 1 after encountering issues with version 2.<\/li>\n\n\n\n
  4. helm delete<\/strong>: This command is used to delete a release and free up the resources associated with it.Example: helm delete my-release<\/code> Use case: Removing the my-release MySQL database from the Kubernetes cluster.<\/li>\n\n\n\n
  5. helm list<\/strong>: This command is used to list all the installed releases.Example: helm list<\/code>Use case: Checking the list of installed releases in the cluster.<\/li>\n\n\n\n
  6. helm status<\/strong>: This command is used to get the status of a release.Example: helm status my-release<\/code>Use case: Checking the status of the my-release MySQL database.<\/li>\n\n\n\n
  7. helm search<\/strong>: This command is used to search for available charts in Helm repositories.Example: helm search repo mysql<\/code>Use case: Searching for available MySQL-related charts in Helm repositories.<\/li>\n\n\n\n
  8. helm dependency update<\/strong>: This command is used to download the dependencies for a chart.Example: helm dependency update my-chart<\/code>Use case: Downloading the dependencies required for the custom chart named my-chart.<\/li>\n<\/ol>\n\n\n\n

    Intermediate Commands<\/h2>\n\n\n\n
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    1. helm repo add<\/strong>: This command is used to add a Helm repository to your local environment.Example: helm repo add stable https:\/\/charts.helm.sh\/stable<\/a><\/code>Use case: Adding the stable repository to your local Helm environment to access charts from the stable repository.<\/li>\n\n\n\n
    2. helm repo update<\/strong>: This command is used to update the local cache of Helm repositories.Example: helm repo update<\/code>Use case: Refreshing the local cache to ensure that you have the latest versions of the charts from the added repositories.<\/li>\n\n\n\n
    3. helm lint<\/strong>: This command is used to lint a chart to validate its syntax and configuration.Example: helm lint my-chart<\/code>Use case: Checking the syntax and configuration of a custom chart named my-chart to ensure it is valid.<\/li>\n\n\n\n
    4. helm package<\/strong>: This command is used to package a chart directory into a compressed chart archive.Example: helm package my-chart<\/code>Use case: Creating a compressed chart archive from a chart directory named my-chart to distribute or install it locally.<\/li>\n\n\n\n
    5. helm history<\/strong>: This command is used to view the release history of a chart.Example: helm history my-release<\/code>Use case: Viewing the history of the my-release chart, including the revision numbers, dates, and statuses of the previous releases.<\/li>\n\n\n\n
    6. helm show<\/strong>: This command is used to display information about a chart or a release.Example: helm show chart stable\/mysql<\/code>Use case: Displaying information about the stable\/mysql chart, such as its description, maintainers, and dependencies.<\/li>\n\n\n\n
    7. helm template<\/strong>: This command is used to render a chart locally without installing it.Example: helm template my-chart<\/code>Use case: Generating the Kubernetes manifests from a chart named my-chart without deploying it, useful for inspection or customization purposes.<\/li>\n<\/ol>\n\n\n\n

      Deploying a Chart to Kubernetes Cluster<\/h2>\n\n\n\n