Helm repo: Difference between revisions
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=Overview= | =Overview= | ||
{{Note|<center>Revised for Helm 3</center>}} | {{Note|<center>Revised for Helm 3</center>}} | ||
Caching repositories locally is useful when installing charts and specifying the chart to be installed [[Helm_install#Using_a_Repository_Prefix|using the name of the locally cached repository and the name of the chart]]. However, charts can be installed [[Helm_install#Absolute_URL|directly from the remote repository]], without having to add (cache) the repository locally. The repositories are cached locally with [[#Add_a_New_Repository|helm repo add]] command, but the cache is not automatically kept up to date in any way, it has to be explicitly updated with [[#Update_the_Local_Repository_Cache|helm repo update]]. | |||
=List Repositories Helm is Configured With= | =List Repositories Helm is Configured With= | ||
<syntaxhighlight lang='bash'> | |||
helm repo list | |||
</syntaxhighlight> | |||
=List All Charts in a Repository= | |||
{{Internal|Helm_search#List_All_Charts_in_the_Repository|List all charts in the repository}} | |||
=Add a New Repository= | =Add a New Repository= | ||
<syntaxhighlight lang='bash'> | |||
helm repo add <repository-name> <repository-url> | |||
</syntaxhighlight> | |||
<syntaxhighlight lang='bash'> | |||
helm repo add dev https://example.com/dev-charts | |||
</syntaxhighlight> | |||
==Adding a Repository that Requires Authentication== | |||
Helm does not allow specifying authentication credentials alongside the [[Helm_Dependencies#repository|repository URL]] in Chart.yaml, so when dependencies need to be pulled from an authenticated repository, an authenticated managed repository must be used. The credentials are specified when the repository is locally added. The credentials are retained in the repository configuration, and they do not have to be specified every time the dependencies are updated with [[Helm_dependency#Dependency_Update|helm dependency update]]. | |||
<syntaxhighlight lang='bash'> | |||
helm repo add <repository-name> <repository-url> --username <username> --password <password> | |||
</syntaxhighlight> | |||
Note that the repository must expose an index.yaml, otherwise the above command will fail with .../index.yaml 404 Not Found. | Note that the repository must expose an index.yaml, otherwise the above command will fail with .../index.yaml 404 Not Found. | ||
To test that the authentication works: | |||
<syntaxhighlight lang='bash'> | |||
helm search repo <repository-name> | |||
</syntaxhighlight> | |||
<repository-url> does not work when used with the [[Helm search|helm search]] command. | |||
==What Happens when a New Repository is Added== | |||
A new entry is added to [[Helm_Repositories#repositories.yaml|repositories.yaml]]. | |||
=Update the Local Repository Cache= | =Update the Local Repository Cache= | ||
The command reaches out to remote repositories Helm installation is configured with and | The command reaches out to remote repositories Helm installation is configured with and gets the latest information about charts. Information is cached locally | ||
<syntaxhighlight lang='bash'> | |||
helm [--debug] repo update | |||
</syntaxhighlight> | |||
=Find what Versions of a Specific Chart are Available in a Repository= | =Find what Versions of a Specific Chart are Available in a Repository= | ||
| Line 32: | Line 62: | ||
One method is to download (or look on-line) at the repository index and do a text search. | One method is to download (or look on-line) at the repository index and do a text search. | ||
=Remove a Repository= | =<span id='Remove_a_Repository'></span>Remove a Locally Configured Repository= | ||
<syntaxhighlight lang='bash'> | |||
helm repo remove <repository-name> | |||
</syntaxhighlight> | |||
=Generate an Index File= | =Generate an Index File= | ||
<syntaxhighlight lang='bash'> | |||
helm repo index <chart-dir> | |||
</syntaxhighlight> | |||
Generates an index from files in the directory specified as argument, which is expected to contain packaged charts. | |||
=Add a Chart to a Remote Repository= | |||
<syntaxhighlight lang='bash'> | |||
helm repo add my-chart https://some-helm-repository.com | |||
</syntaxhighlight> | |||
Latest revision as of 02:40, 10 January 2023
External
Internal
Overview
Revised for Helm 3
Caching repositories locally is useful when installing charts and specifying the chart to be installed using the name of the locally cached repository and the name of the chart. However, charts can be installed directly from the remote repository, without having to add (cache) the repository locally. The repositories are cached locally with helm repo add command, but the cache is not automatically kept up to date in any way, it has to be explicitly updated with helm repo update.
List Repositories Helm is Configured With
helm repo list
List All Charts in a Repository
Add a New Repository
helm repo add <repository-name> <repository-url>
helm repo add dev https://example.com/dev-charts
Adding a Repository that Requires Authentication
Helm does not allow specifying authentication credentials alongside the repository URL in Chart.yaml, so when dependencies need to be pulled from an authenticated repository, an authenticated managed repository must be used. The credentials are specified when the repository is locally added. The credentials are retained in the repository configuration, and they do not have to be specified every time the dependencies are updated with helm dependency update.
helm repo add <repository-name> <repository-url> --username <username> --password <password>
Note that the repository must expose an index.yaml, otherwise the above command will fail with .../index.yaml 404 Not Found.
To test that the authentication works:
helm search repo <repository-name>
<repository-url> does not work when used with the helm search command.
What Happens when a New Repository is Added
A new entry is added to repositories.yaml.
Update the Local Repository Cache
The command reaches out to remote repositories Helm installation is configured with and gets the latest information about charts. Information is cached locally
helm [--debug] repo update
Find what Versions of a Specific Chart are Available in a Repository
One method is to download (or look on-line) at the repository index and do a text search.
Remove a Locally Configured Repository
helm repo remove <repository-name>
Generate an Index File
helm repo index <chart-dir>
Generates an index from files in the directory specified as argument, which is expected to contain packaged charts.
Add a Chart to a Remote Repository
helm repo add my-chart https://some-helm-repository.com