I am trying to update my helm repo to the latest version using the below command. The repo name is returned from helm repo list. My helm version is v3.3.1
helm repo update <repo name>
but instead i get the below.
Error: "helm repo update" accepts no arguments
Usage: helm repo update [flags]
You need a newer version of Helm; the option you're looking for seems to have been added in Helm 3.7.0. The Helm 3.7.0 release notes include:
helm repo update now accepts an optional repository name
If you can't upgrade to a newer version of Helm, you can still run helm repo update with no additional arguments to update all repositories' data.
Related
Disclaimer: I'm new to Kubernetes and Helm.
I am trying to install a Helm chart using the brand new Helm Hub and for the life of me I can't figure out how this is supposed to work.
A new version of Helm (3.0) was released only a few months ago with significant changes, one of them is that it doesn't come with any repositories configured. Helm released the Helm Hub which is supposed to be a centralized service to find charts.
I am trying to install a CloudBees Jenkins chart. This is what I get when I search the hub:
[me#localhost tmp]$ helm search hub cloudbees -o yaml
- app_version: 2.222.1.1
description: The Continuous Delivery Solution for Enterprises
url: https://hub.helm.sh/charts/cloudbees/cloudbees-core
version: 3.12.0+80c17a044bc4
- app_version: 9.2.0.139827
description: A Helm chart for CloudBees Flow
url: https://hub.helm.sh/charts/cloudbees/cloudbees-flow
version: 1.1.1
- app_version: 9.2.0.139827
description: A Helm chart for CloudBees Flow Agent
url: https://hub.helm.sh/charts/cloudbees/cloudbees-flow-agent
version: 1.1.1
- app_version: 2.204.3.7
description: CloudBees Jenkins Distribution provides development teams with a highly
dependable, secure, Jenkins environment curated from the most recent supported
Jenkins release. The distribution comes with a recommended catalog of tested plugins
available through the CloudBees Assurance Program.
url: https://hub.helm.sh/charts/cloudbees/cloudbees-jenkins-distribution
version: 2.204.307
- app_version: 2.0.2
description: Helm chart for sidecar injector webhook deployment
url: https://hub.helm.sh/charts/cloudbees/cloudbees-sidecar-injector
version: 2.0.2
So it looks like the chart I am looking for is available: cloudbees-jenkins-distribution.
However, I can't find any way to install from the hub or to add a repository based on the hub output. Some of the things I've tried:
[me#localhost tmp]$ helm repo update
Hang tight while we grab the latest from your chart repositories...
...Successfully got an update from the "incubator" chart repository
...Successfully got an update from the "gitlab" chart repository
...Successfully got an update from the "stable" chart repository
Update Complete. ⎈ Happy Helming!⎈
[me#localhost tmp]$ helm install myJenkins cloudbees-jenkins-distribution
Error: failed to download "cloudbees-jenkins-distribution" (hint: running `helm repo update` may help)
[me#localhost tmp]$ helm repo add cbRepo https://hub.helm.sh/charts/cloudbees
Error: looks like "https://hub.helm.sh/charts/cloudbees" is not a valid chart repository or cannot be reached: error converting YAML to JSON: yaml: line 8: mapping values are not allowed in this context
[me#localhost tmp]$ helm repo add cbRepo https://hub.helm.sh/charts/cloudbees/cloudbees-jenkins-distribution
Error: looks like "https://hub.helm.sh/charts/cloudbees/cloudbees-jenkins-distribution" is not a valid chart repository or cannot be reached: error converting YAML to JSON: yaml: line 8: mapping values are not allowed in this context
The documentation really doesn't say much about how I'm supposed to go from the Helm Hub to an installed chart. What am I missing here?
Helm Hub is NOT like a repo that you can add and install from it helm charts. It doesn't expose valid repos urls either. That's why you're getting the error message like below:
Error: looks like "https://hub.helm.sh/charts/cloudbees" is not a valid chart repository ...
when you're trying to run helm repo add on https://hub.helm.sh based urls.
I know it may seem pretty confusing but it just works like that, by its very design. Please refer to this discussion on Github. Specifically this comment explains it a bit more and I hope it also answers your question:
hub.helm.sh is not the helm repo, so it will not work the you trying,
it is only meant to view and search for charts. check in there for
chart repository and it that way, then you will be able to install the
charts.
Unfortunatelly the official helm documentation doesn't explain it well enough. It mentions only:
helm search hub searches the Helm Hub, which comprises helm charts
from dozens of different repositories.
But it shows "no explanation how to get from helm search repo which shows hub.helm.sh to helm repo add which magically shows the a new url to use." - as one user wrote in the thread mentioned above.
Despite that Helm hub doesn't have a convenient way to get a repository url, it has a github repo that contains all vendors repository in one file.
We can use that fact to create a workaround, that you can improve using automation tools like bash,awk, sed, perl, python, etc.
Let's imagine we want to get the helm chart url using helm v3 and command line tools only.
(helm3 is just a symlink for helm v3.1.2)
Let's get the repository name for jenkins distribution for cloudbees vendor
$ helm3 search hub jenkins --max-col-width 1000 | grep cloudbees | tr "\t" "\n"
https://hub.helm.sh/charts/cloudbees/cloudbees-core
3.12.0+80c17a044bc4
2.222.1.1
The Continuous Delivery Solution for Enterprises
https://hub.helm.sh/charts/cloudbees/cloudbees-jenkins-distribution
2.204.307
2.204.3.7
CloudBees Jenkins Distribution provides development teams with a highly dependable, secure, Jenkins environment curated from the most recent supported Jenkins
release. The distribution comes with a recommended catalog of tested plugins available through the CloudBees Assurance Program.
As we can see the chart page on Helm hub is
# https://hub.helm.sh/charts/cloudbees/cloudbees-jenkins-distribution
# ^^^^^^^^^
so we can assume that repository name is also cloudbees
Let's find the url for cloudbees helm repository
$ curl -s https://raw.githubusercontent.com/helm/hub/master/config/repo-values.yaml | grep cloudbees
- name: cloudbees
url: https://charts.cloudbees.com/public/cloudbees
Now we can add this repository using helm repo command:
$ helm3 repo add cloudbees https://charts.cloudbees.com/public/cloudbees
"cloudbees" has been added to your repositories
Don't forget to update:
$ helm3 repo update
Hang tight while we grab the latest from your chart repositories...
...Successfully got an update from the "cloudbees" chart repository
Update Complete. ⎈ Happy Helming!⎈
To find the chart name let's repeat search in repo
$ helm3 search repo jenkins
NAME CHART VERSION APP VERSION DESCRIPTION
cloudbees/cloudbees-jenkins-distribution 2.204.307 2.204.3.7 CloudBees Jenkins Distribution provides develop...
cloudbees/cloudbees-core 3.12.0+80c17a044bc4 2.222.1.1 The Continuous Delivery Solution for Enterprises
And finally we can install the chart:
$ helm3 install cloudbees/cloudbees-jenkins-distribution --version 2.204.307
Happy Helming3 ! :)
True, helm search hub cloudbees does not return the url of the repo.
What you can do from the result of helm search hub cloudbees is helm install $urlFromBefore:
$ helm search hub cloudbees
- app_version: 2.222.1.1
description: The Continuous Delivery Solution for Enterprises
url: https://hub.helm.sh/charts/cloudbees/cloudbees-core
...
$ helm install cloudbees https://hub.helm.sh/charts/cloudbees/cloudbees-core
from helm/helm#7419
To get the repo url, you can do the search on https://hub.helm.sh or
do a work around when you want the repo url from console:
$ curl https://hub.helm.sh/api/chartsvc/v1/charts/search?q=rancher | json_pp
The repo url is in key url in repo (data[...].attributes.repo.url).
(json_pp is optional. It pretty prints json, which helps me to read it.)
Now continue with
# variables names show the place in json output from above
helm repo add $data_attributes_repo_name $data_attributes_repo_url
helm repo update
helm install $data_attributes_repo_name/$data_attributes_name
I feel I have overseen something but I'm unable to find the appropriate section on https://github.com/helm/chartmuseum
How can I download helm chart package (.tgz) from Helm ChartMuseum (using curl, wget or any other cli)?
Helm must use that API to download requirements, but somehow I can't find the information in the ChartMuseum readme...
Using helm v3:
helm repo add stable https://kubernetes-charts.storage.googleapis.com/
helm repo update
helm pull stable/chartmuseum --untar # optionally untar
Get it with curl:
curl https://kubernetes-charts.storage.googleapis.com/chartmuseum-2.5.0.tgz --output chartmuseum-2.5.0.tgz
All the packages from stable repo are here:
https://kubernetes-charts.storage.googleapis.com/
The latest version of chartmuseum to date is here:
https://kubernetes-charts.storage.googleapis.com/chartmuseum-2.5.0.tgz
The helm chart of chart museum on GitHub:
https://github.com/helm/charts/tree/master/stable/chartmuseum
I have a private helm repo using apache, after migrating to helm3 I cannot install/search charts anymore.
Using helm v3
helm repo list
NAME URL
mas http://localhost:8080/charts/
helm search repo mas/devops-openshift
No results found
Using helm 2.*
helm search -r mas/devops-openshift
NAME CHART VERSION APP VERSION DESCRIPTION
mas/devops-openshift 7.0.0 Devops (OpenShift)
Same happens when using "helm install" command, it cannot find the charts.
I guess it could be something related to the helm repo index file. Maybe helmv3 is expecting a different structure? But same happen when generating index file from helmv3.
Thanks all for the answers but I've found the issue.
My repository were using development version of the charts so I had something like this 1.0.0-pre.dev (Semantic Versioning 2.0.0).
By default helm 3 does not look at non production charts.
You have to set the flag -devel. something like:
helm search repo mas/devops-openshift --devel
While migrating from helm 2 to helm 3 remove private repo and add it after migration, then run helm repo update to refresh repository file.
If the chart is available locally, run helm repo index <DIR> --url <your_repo_url> to create new index.yaml for this repository.
Running helm env will show you the directory where the repository.yamlis located so check if the file is generated correctly.
I am using Windows 10 with docker for windows.
I have acitve kubernetes.
I've downloaded helm from https://github.com/helm/helm/releases and added files to Windows PATH.
Now i want to execute:
helm install stable/mailhog --generate-name
but i get
Error: failed to download "stable/mailhog" (hint: running 'helm repo update' may help
I am not sure how to add public repo for it.
I tried adding it with:
helm repo add mailhog https://kubernetes-charts-incubator.storage.googleapis.com/
"mailhog" has been added to your repositories
helm repo update
but the output from helm install stable/mailhog --generate-name gives me still the same error.
How can i get stable/mailhog this way?
Using https://kubernetes-charts.storage.googleapis.com as the helm repo works for me:
helm init
helm repo add stable https://kubernetes-charts.storage.googleapis.com
$ helm repo list
NAME URL
stable https://kubernetes-charts.storage.googleapis.com
helm install stable/mailhog --generate-name
I have been trying to install nginx ingress using helm version 3
helm install my-ingress stable/nginx-ingress
But Helm doesn't seem to be able to find it's official stable repo. It gives the message:
Error: failed to download "stable/nginx-ingress" (hint: running helm
repo update may help)
I tried helm repo update. But it doesn't help.
I tried listing the repos helm repo list but it is empty.
I tried to add the stable repo:
helm repo add stable https://github.com/helm/charts/tree/master/stable
But it fails with:
Error: looks like "https://github.com/helm/charts/tree/master/stable"
is not a valid chart repository or cannot be reached: failed to fetch
https://github.com/helm/charts/tree/master/stable/index.yaml : 404 Not
Found
The stable repository is hosted on https://kubernetes-charts.storage.googleapis.com/. So, try the following:
helm repo add stable https://kubernetes-charts.storage.googleapis.com/
EDIT 2020-11-16: the above repository seems to have been deprecated. The following should now work instead:
helm repo add stable https://charts.helm.sh/stable
Be aware that Helm v3 does not have the use of Tiller.
1. Install Helm v3:
curl https://raw.githubusercontent.com/helm/helm/master/scripts/get-helm-3 > get_helm.sh
chmod 700 get_helm.sh
./get_helm.sh
2. Install Ingress-Nginx:
helm repo add stable https://kubernetes-charts.storage.googleapis.com/
helm install my-nginx stable/nginx-ingress --set rbac.create=true
From Helm Blog -
On November 13, 2020 the stable and incubator charts repository will
reach the end of development and become archives. You can find that
many of the charts have moved to other, community managed,
repositories. You can discover these on the Artifact Hub.
The best way to discover a chart by searching the Artifact Hub. And if you select nginx-ingress from ORG Helm, you can see the instruction for adding a repo.
helm repo add nginx-stable https://helm.nginx.com/stable
Below solution worked for me.
# Below command is not working
$ helm repo add stable https://kubernetes-charts.storage.googleapis.com/
Error: repo "https://kubernetes-charts.storage.googleapis.com/" is no longer available; try "https://charts.helm.sh/stable" instead
#Try this one, it's wokring.
$ helm repo add stable https://charts.helm.sh/stable
"stable" has been added to your repositories
The stable repositories are in helm hub https://hub.helm.sh/charts
Install the nginx chart for nginx ingress
helm install bitnami/nginx --version 6.2.0
I solved that problem by putting in this line:
helm repo add stable https://charts.jetstack.io