Helm is a package manager for Kubernetes that allows development and operations teams to easily manage and deploy these increasingly complex cloud native applications to their Kubernetes clusters. Helm allows you to manage applications on your Kubernetes cluster in much the same way as you’d manage applications on your Linux server with
Helm works by packaging up a set of YAML definitions along with the necessary configuration to quickly stand up all components of an application in a repeatable way. A single chart can be as simple or complex as necessary, deploying anything from a single container to a full distributed application. Helm combines these application definitions with user-provided configuration to allow simple overriding of configuration where needed, allowing users to concentrate on shipping software and not on the nitty-gritty of configuring every application they need to run.
Helm packages are known as “Charts” and are stored in a “Chart Repository”. By default, Helm comes bundled with the “stable” chart repository, hosted for free by Google. Most public charts are hosted here, mostly provided by vendors packaging their own software for use by others.
For more information on Helm, please see:
- Helm: The official website for Helm
- Helm Hub: The official public repository for Helm Charts
- Helm Documentation: Helm Documentation
- Kubernetes Documentation: Kubernetes Documentation
The examples in this document are generic. Cloudsmith provides contextual setup instructions within each repository, complete with copy n' paste snippets (with your namespace/repo pre-configured).
In the following examples:
Your Cloudsmith account name or organisation name (namespace)
Your Cloudsmith Repository name (also called "slug")
Your Cloudsmith Entitlement Token (see Entitlements for more details)
Your Cloudsmith username
Your Cloudsmith password
Your Cloudsmith API Key
A name for your repository in your helm configuration
The name of your chart
The version number of your chart
To upload, you will need to generate your chart first. You can do this with the helm CLI:
helm package .
This generates a chart package file (.tgz) like
CHART_NAME-CHART_VERSION.tgz that you can upload.
Please see the official Chart development guide for more information on building your own Charts for distribution.
For full details of how to install and setup the Cloudsmith CLI, see Command Line Interface.
The command to upload a Helm chart via the Cloudsmith CLI is:
cloudsmith push helm OWNER/REPOSITORY CHART_NAME-CHART_VERSION.tgz
cloudsmith push helm org/repo your-chart-1.0.0.tgz
Please see Upload a Package for details of how to upload via the Website UI.
For examples of what your project should look like for packaging and publishing/uploading, please have a look at our examples repository (on GitHub). We'll supplement these with more detailed guidance later but otherwise, just ask! - we're here to help.
Assuming you have helm already installed, it is straight-forward to add a Cloudsmith-based chart repository. You use the
helm repo add and
helm repo update commands as follows:
helm repo add NAME \ 'https://dl.cloudsmith.io/public/OWNER/REPOSITORY/helm/charts/' helm repo update
Private Cloudsmith repositories require authentication. You can choose between two types of authentication, Entitlement Token Authentication or HTTP Basic Authentication.
The setup method will differ depending on what authentication type you choose to use.
helm repo add NAME \ 'https://dl.cloudsmith.io/TOKEN/OWNER/REPOSITORY/helm/charts/' helm repo update
helm repo add NAME \ 'https://dl.cloudsmith.io/basic/OWNER/REPOSITORY/helm/charts/' \ --username USERNAME \ --password PASSWORD helm repo update
helm repo add NAME \ 'https://dl.cloudsmith.io/basic/OWNER/REPOSITORY/helm/charts/' \ --username USERNAME \ --password API-KEY helm repo update
helm repo add NAME \ 'https://dl.cloudsmith.io/basic/OWNER/REPOSITORY/helm/charts/' \ --username token \ --password TOKEN helm repo update
To install/use a specific version of a chart:
helm install NAME/CHART_NAME --version CHART_VERSION
To install the latest version of a chart:
helm install NAME/CHART_NAME
Or you can upgrade to the most recent version of a chart if you've already installed:
helm upgrade NAME/CHART_NAME
If you've got a
requirements.yaml file in your chart, you can specify this as a dependency:
dependencies: - name: CHART_NAME version: CHART_VERSION repository: NAME
Helm provides a very clean method of removing a chart repository, simply run the following command:
helm repo remove NAME
The Cloudsmith Helm Chart repository implementation currently has the following limitations:
- Provenance files are not yet supported.
Note: The Helm v3 API is generally supported (please check with support for edge-cases)
Please see the Troubleshooting page for further help and information.
Updated 7 months ago