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Helm Chart Kubernetes Versioning

wnatasha@...
 

How do Helm charts handle differences in K8S API objects between different K8S/OpenShift versions? For example, for the apiVersion parameter, is there a way for Helm to know what version to put in depending on what version of K8S or OpenShift they have?
Re: Upgrade with rolling restart

Simon Fontana Oscarsson
 

Never mind. I just added RollingUpdate as my updateStrategy and it worked perfectly. Sorry for the
white noise.

--
SIMON FONTANA OSCARSSON
Software Developer

Ericsson
Ölandsgatan 1
37133 Karlskrona, Sweden
simon.fontana.oscarsson@ericsson.com
www.ericsson.com

On tor, 2018-06-28 at 13:32 +0200, Simon Fontana Oscarsson wrote:
Hi,

I have a statefulset as a helm chart. When doing helm upgrade I would like to perform a rolling
restart of all pods. Is this possible with just helm? Is there a better workaround than performing
a
kubectl rolling-update after helm upgrade?

?
smime.p7s

Upgrade with rolling restart

Simon Fontana Oscarsson
 

Hi,

I have a statefulset as a helm chart. When doing helm upgrade I would like to perform a rolling
restart of all pods. Is this possible with just helm? Is there a better workaround than performing a
kubectl rolling-update after helm upgrade?

--
SIMON FONTANA OSCARSSON
Software Developer

Ericsson
Ölandsgatan 1
37133 Karlskrona, Sweden
simon.fontana.oscarsson@ericsson.com
www.ericsson.com

?
smime.p7s

Community Repo Moved

Matt Farina
 

Now that Helm has moved to the CNCF we are starting to move repositories to the helm organization. The first to move is the Helm community repo which is now at github.com/helm/community 

It will be a little while before we move the Helm and Charts repos because of the way dependencies work. We have some things to work out. Some of the other supporting repositories will be moving in the next couple weeks.

-- 
Matt Farina
mattfarina.com
Re: How to override the default helm chart values in values.yaml using hapi?

benjamin <benjamin_wang@...>
 

 

I tried to use command “helm install —set app1.key1=abc my chart”, and it worked. So I read the source code helm command, eventually I figured out the root cause.

The structure of the values map should be hierarchical.

Previously the value map was created with the following code,

 

Values := make(map[string]interface{})

values[“app1.key1”] = “abc”

 

The above code isn’t correct, and it should be something as below,

Base := make(map[string]interface{})

InnerApp1 = make(map[string]interface{})

innerApp1[“key1”] = “abc”

base[“app1”] = innerApp1 
Re: How to override the default helm chart values in values.yaml using hapi?

benjamin <benjamin_wang@...>
 

Note that I did not use helm client, instead, I use gRPC API to communicate with tiller server directly. 

 

I just reviewed the source code of helm client. It just configures the InstallReleaseRequest.Values with the overrides values. I followed the same logic,  so I just updated InstallReleaseRequest.Values with the override values directly.  The new source code is something as below, but it did not work either. The helm chart can be created successfully, but the POD still uses the default values defined in values.yaml in the chart instead of the override values. Can someone help to point out what’s the reason? 

 

func deploy(tillerEndpoint, helmChartDir, helmChartName string, overrideValues map[string]interface{}) error {

conn, err := grpc.Dial(tillerEndpoint, grpc.WithInsecure())

defer conn.Close()

tillerClient := services.NewReleaseServiceClient(conn)

helmChart, err := chartutil.Load(helmChartDir)

cc := chart.Config{ Raw:    helmChart.Values.Raw }

         If overrideValues != nil {

vals, err := chartutil.Values(overrideValues).YAML()

                cc = chart.Config{Raw: vals }

  }

req := &services.InstallReleaseRequest{

Chart:        helmChart,

Values:       &cc,

Name:         helmChartName,

Namespace:    "default",

DryRun:       false,

DisableHooks: true,

}

err = chartutil.ProcessRequirementsEnabled(req.Chart, req.Values)

err = chartutil.ProcessRequirementsImportValues(req.Chart)

_, err = tillerClient.InstallRelease(helm.NewContext(), req)

return err

}
Re: How to override the default helm chart values in values.yaml using hapi?

Matt Fisher <matt.fisher@...>
 

If you want to override values, you'll want to add your values as a ValueOverride option to InstallRelease. An example can be found within Draft: https://github.com/Azure/draft/blob/9e1f18aa6d9bd382bf9602b66eeb870b99213f8b/pkg/builder/builder.go#L411-L421


1504220459230_microsoft.png

Matthew Fisher, Caffeinated Software Engineer

Microsoft Azure Platform

Nanoose Bay, BC Canada

Email: matt.fisher@...

Phone: 1(250)937-1478

From: cncf-helm@... <cncf-helm@...> on behalf of benjamin via Lists.Cncf.Io <benjamin_wang=aliyun.com@...>
Sent: Tuesday, June 12, 2018 8:28 AM
To: cncf-helm@...
Cc: cncf-helm@...
Subject: [cncf-helm] How to override the default helm chart values in values.yaml using hapi?
 
I use the following code (golang) to deploy helm chart into kubernetes. I removed the error handling code for simplicity. 

The last parameter "values" is used to override the values of some fields defined in values.yaml . But after the chart is created, the values used by the POD are still the default values defined in values.yaml in the chart instead of the values included in the last parameter of the following function. What did I miss? Thanks!

func deploy(tillerEndpoint, helmChartDir, helmChartName string, values map[string]*chart.Value) error {
conn, err := grpc.Dial(tillerEndpoint, grpc.WithInsecure())
defer conn.Close()
tillerClient := services.NewReleaseServiceClient(conn)
helmChart, err := chartutil.Load(helmChartDir)
cc := chart.Config{
Raw:    helmChart.Values.Raw,
Values: values,
}
req := &services.InstallReleaseRequest{
Chart:        helmChart,
Values:       &cc,
Name:         helmChartName,
Namespace:    "default",
DryRun:       false,
DisableHooks: true,
}
err = chartutil.ProcessRequirementsEnabled(req.Chart, req.Values)
err = chartutil.ProcessRequirementsImportValues(req.Chart)
_, err = tillerClient.InstallRelease(helm.NewContext(), req)
return err
}
How to override the default helm chart values in values.yaml using hapi?

benjamin <benjamin_wang@...>
 

I use the following code (golang) to deploy helm chart into kubernetes. I removed the error handling code for simplicity. 

The last parameter "values" is used to override the values of some fields defined in values.yaml . But after the chart is created, the values used by the POD are still the default values defined in values.yaml in the chart instead of the values included in the last parameter of the following function. What did I miss? Thanks!

func deploy(tillerEndpoint, helmChartDir, helmChartName string, values map[string]*chart.Value) error {
conn, err := grpc.Dial(tillerEndpoint, grpc.WithInsecure())
defer conn.Close()
tillerClient := services.NewReleaseServiceClient(conn)
helmChart, err := chartutil.Load(helmChartDir)
cc := chart.Config{
Raw:    helmChart.Values.Raw,
Values: values,
}
req := &services.InstallReleaseRequest{
Chart:        helmChart,
Values:       &cc,
Name:         helmChartName,
Namespace:    "default",
DryRun:       false,
DisableHooks: true,
}
err = chartutil.ProcessRequirementsEnabled(req.Chart, req.Values)
err = chartutil.ProcessRequirementsImportValues(req.Chart)
_, err = tillerClient.InstallRelease(helm.NewContext(), req)
return err
}
Re: Prevent an accidental helm delete

Bryan Rosander
 

If your cluster is using RBAC, you could remove the tiller's RoleBinding (or at least its delete permissions) to prevent the tiller from carrying out an unintended delete.

Thanks,
Bryan
Re: Prevent an accidental helm delete

Matt Fisher <matt.fisher@...>
 

Hey Victor,

I'm not aware of a way to do this right now, but a --prompt option flag has been suggested previously (though for helm install). We'd be more than happy to see a PR to add that flag! We'd just have to ensure that it's turned off by default for backwards compatibility. Feel like hacking up that feature for Helm? 😊



1504220459230_microsoft.png

Matthew Fisher, Caffeinated Software Engineer

Microsoft Azure Platform

Nanoose Bay, BC Canada

Email: matt.fisher@...

Phone: 1(250)937-1478

From: cncf-helm@... <cncf-helm@...> on behalf of victor.buciuc@... <victor.buciuc@...>
Sent: Monday, June 11, 2018 3:05 PM
To: cncf-helm@...
Subject: [cncf-helm] Prevent an accidental helm delete
 
Hi,

Is there a way to prevent an accidental helm delete?

Regards,
Victor.

Prevent an accidental helm delete

victor.buciuc@...
 

Hi,

Is there a way to prevent an accidental helm delete?

Regards,
Victor.
Re: Linking external files to the values.yaml

kavindu175@...
 

Hi Matt,

Thank you for the advice and I will follow that. Can you place send some documentations regarding --set.
And yes we can close that GitHub issue.

Thank you,
Kavindu
Re: Linking external files to the values.yaml

Matt Fisher <matt.fisher@...>
 

Hey Kavindu,

Up until very recently there was no way to reference files external to the helm chart asides from using invocations like `--set foo=$(cat myfile)`. However, there is a PR out there to make this simpler by adding a new --set-file flag: https://github.com/kubernetes/helm/pull/3758

Until then, using --set is your best bet.

Is it all right if we go ahead and close https://github.com/kubernetes/helm/issues/4131 and carry the conversation here? It's nice to keep a conversation in one place.

Thanks!


1504220459230_microsoft.png

Matthew Fisher, Caffeinated Software Engineer

Microsoft Azure Platform

Nanoose Bay, BC Canada

Email: matt.fisher@...

Phone: 1(250)937-1478

From: cncf-kubernetes-helm@... <cncf-kubernetes-helm@...> on behalf of kavindu175@... <kavindu175@...>
Sent: Monday, May 28, 2018 3:19 AM
To: cncf-kubernetes-helm@...
Subject: [cncf-kubernetes-helm] Linking external files to the values.yaml
 
Hi,

Currently, I am working on deploying MySQL using helm package. In that scenario, I want to add some custom configuration files and initialization SQL file. According to the details which are provided on GitHub, we have to paste the content of all the configuration files and all the initialization SQL files into the values.yaml file. But in my case, I have a very big initialization SQL file and it is hard to paste it on the values.yaml file. 

Therefore, is there a way to link an external file or file path to the values.yaml or is there some other solution for this issue? 
Kindly appreciated your inputs on this issue.

Thank you,
Kavindu
 
Linking external files to the values.yaml

kavindu175@...
 

Hi,

Currently, I am working on deploying MySQL using helm package. In that scenario, I want to add some custom configuration files and initialization SQL file. According to the details which are provided on GitHub, we have to paste the content of all the configuration files and all the initialization SQL files into the values.yaml file. But in my case, I have a very big initialization SQL file and it is hard to paste it on the values.yaml file. 

Therefore, is there a way to link an external file or file path to the values.yaml or is there some other solution for this issue? 
Kindly appreciated your inputs on this issue.

Thank you,
Kavindu
 
Does helm support xpath?

kavindu175@...
 

Hi,

Currently, I am working on creating configMaps using helm. I am facing an issue that I cannot replace a value of xml file using xpath. I have explained my task below

I have a xml file called tee.xml which should be added to my config map.

The folder structure of helm chart is shown below.

├── charts
├── Chart.yaml
├── conf
│ └── tee.xml
├── templates
│ └── ConfigMap.yaml
└── values.yaml
tee.xml is shown below.

<note>
<to>Tove</to>
<from>${name}</from>
<heading>Reminder</heading>
<body>Don't forget me this weekend!</body>
</note>

Can I replace the value ${name} (which is located in tee.xml) using xpath before it is added as a config map ? The value should be taken from values.yaml file.

Please help me, if you have any method of doing above task.

 

Thank you,

Kavindu
Add initialization sql files to helm mysql externally

kavindu175@...
 

Hi,
 
I want to deploy the mysql using helm which is mentions as this link. It is mentioned that if we want to add sql file as initialization configuration we want to add the whole content to values.yaml. But I have a very large sql file. Is there any way to add the sql file externally?
 
 
 
 
Thank you,
Kavindu
Helm and Kubernetes Application Survey 2018 Information

Matt Farina
 

Now that the survey is closed we've begun to work through the information and try to share share results more widely. Here are pointers to some information as it pertains to Helm, where some of the output is ready to be looked over.

If you have feedback on either of the first two documents please feel free to pass it along.

Over the next week or so we'll continue to put results for projects into the slide decks. If anyone wants to help with that please feel free to reach out.
Re: installing from source problem

Matt Fisher <matt.fisher@...>
 

It just takes a long time to fetch k8s.io/kubernetes from source. Depending on internet speeds it’s taken me upwards of a half hour to fetch k8s.io/kubernetes. How long were you waiting for?

 

Matt

 

From: <cncf-kubernetes-helm@...> on behalf of Denis Chebotarev <denis.chebotarev@...>
Date: Monday, April 9, 2018 at 4:13 AM
To: "cncf-kubernetes-helm@..." <cncf-kubernetes-helm@...>
Subject: [cncf-kubernetes-helm] installing from source problem

 

Hi

 

I need to install Tiller locally for some reasons and the only way to do it is installing from source as I understand.

 

I followerd the steps listed in the docs here

 

There is a problem. Installation process hangs on on  "Fetching k8s.io/kubernetes" until I stop it manually. How to fix this problem?
installing from source problem

Denis Chebotarev <denis.chebotarev@...>
 

Hi

I need to install Tiller locally for some reasons and the only way to do it is installing from source as I understand.

I followerd the steps listed in the docs here

There is a problem. Installation process hangs on on  "Fetching k8s.io/kubernetes" until I stop it manually. How to fix this problem?
installing from source problem

Denis Chebotarev
 

Hi

I need to install Tiller locally for some reasons and the only way to do it is installing from source as I understand.

I followerd the steps listed in the docs here

There is a problem. Installation process hangs on on  "Fetching k8s.io/kubernetes" until I stop it manually. How to fix this problem?
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