topic Re: Error while Installing Qlik Sense in Kubernetes in Management & Governance

Error while Installing Qlik Sense in Kubernetes

rohitk1609 — Fri, 02 Apr 2021 07:56:02 GMT

HI Techies,

I have started working on Installing Qlik Sense in Kubernetes on my local personal windows 10, 8 Gb ram and 4 core machine.

I am referring the document made by Qlik know expert

https://github.com/tonikautto/qse-kubernetes-minikube

Now above document has two files

1. 0-install-tools.ps1 which guide us to install tools, reference Qlik doc behind the powershell file is

https://help.qlik.com/en-US/sense/April2019/Subsystems/PlanningQlikSenseDeployments/Content/Sense_Deployment/Preparing-Qlik-Sense-multi-cloud-Efe.htm

I ran it and it was executed fine with no errors.

now I have Oracle VM virtual box manager, minkube, which is running fine.

Then I ran second file 1-Deploy-Minikube.ps1 which is made by https://help.qlik.com/en-US/sense/April2019/Subsystems/PlanningQlikSenseDeployments/Content/Sense_Deployment/using-minikube-qseok.htm

It has commands to

kick off minikube start,

# Force Kubectl to point to minikube,

# Run the following command to add Qlik’s helm chart repository to Helm. This is where Qlik Sense is pulled from

# use helm to deploy into Kubernetes, the helm Tiller pod is added to the Kubernetes cluster first.

# Install custom resource definitions used by dynamic engines

but when it try to execute

# Install the Qlik Sense package

helm install -n qliksense qlik/qliksense -f values.yaml

it gives me error:

Error: validation failed: error validating "": error validating data: unknown object type "nil" in Secret.data.redis-password

, I tried to run the command by going to the folder where values.yaml but same error.

I have not much knowledge about Kubernetes so please help me to fix the error step wise step ?

Thanks in advance

Rohit

Re: Error while Installing Qlik Sense in Kubernetes

Chris_Rice — Thu, 23 May 2019 08:51:32 GMT

That's a bug with the latest version of Helm. You'll need to downgrade Helm:

echo 'Getting Helm' curl -s https://raw.githubusercontent.com/kubernetes/helm/master/scripts/get > get_helm.sh chmod 700 get_helm.sh ./get_helm.sh --version v2.13.1

Re: Error while Installing Qlik Sense in Kubernetes

rohitk1609 — Thu, 23 May 2019 09:21:16 GMT

Hey Chris,

When I write your code in .ps1 file as:

echo 'Getting Helm'

curl -s https://raw.githubusercontent.com/kubernetes/helm/master/scripts/get > get_helm.sh

chmod 700 get_helm.sh

./get_helm.sh --version v2.13.1

it is asking for:

"cmdlet Invoke-WebRequest at command pipeline position 1
Supply values for the following parameters:
Uri:"

Then I am not sure which value to enter ?

Can you please guide me how to downgrade helm step wise ?

Thanks,

Rohit

Re: Error while Installing Qlik Sense in Kubernetes

rohitk1609 — Mon, 27 May 2019 05:30:13 GMT

Hey Chris,
Can you please help me to downgrade helm ?

Thanks,
Rohit

Re: Error while Installing Qlik Sense in Kubernetes

Chris_Rice — Mon, 27 May 2019 06:56:39 GMT

Hey Rohit,

Like most things with Linux, it's all highly dependent on your setup. You can find general information here:

https://helm.sh/docs/using_helm/#installing-helm

You'll need to take that and adapt it to your specific setup.

Thanks!

Re: Error while Installing Qlik Sense in Kubernetes

gustavgager — Wed, 05 Jun 2019 15:02:13 GMT

This is a bash script, not powershell.

Its meant to be running on Linux since helm is Linux only. Therefor im guessing that you run some sorrt of VM where you run helm commands? Thats where you should run the bash script to downgrade to helm to the earlier version.

Re: Error while Installing Qlik Sense in Kubernetes

rohitk1609 — Thu, 06 Jun 2019 04:11:16 GMT

I am trying this solution on windows machine https://github.com/tonikautto/qse-kubernetes-minikube

Re: Error while Installing Qlik Sense in Kubernetes

ToniKautto — Thu, 06 Jun 2019 06:48:46 GMT

Potentially your laptop will be too small for the Minikube to function reasonably well. Try to find a machine with atleast 16 GB of RAM. Then adjust the Minikube to run on a size that matches the available resources on your machine.

minikube start --memory 4000 --cpus=2

This error appears during Qlik package installation, when using Helm 2.14.

Issue can be resolved by downgrading to for example Helm 2.13.1.

choco install kubernetes-helm --version 2.13.1 --yes --force

https://github.com/tonikautto/qse-kubernetes-minikube#troubleshooting

Re: Error while Installing Qlik Sense in Kubernetes

ToniKautto — Thu, 06 Jun 2019 06:53:05 GMT

@gustavgager As a side note, Helm as a tool is not Linux only.

Re: Error while Installing Qlik Sense in Kubernetes

rohitk1609 — Thu, 06 Jun 2019 10:08:43 GMT

Hi Toni,
Thanks for your response.
I ran second file"1-Deploy-Minikube.ps1" with minikube start --memory 6000 --cpus=2
because my laptop has 8 GB ram only and downgraded HELM to 2.31.1 but unfortunately same error is still coming.

Re: Error while Installing Qlik Sense in Kubernetes

ToniKautto — Thu, 06 Jun 2019 10:43:53 GMT

That indicates that you have in fact not successfully downgraded Helm.

Also, I do not believe that you will have 6GB available RAM on a 8GB Windows machine.

Re: Error while Installing Qlik Sense in Kubernetes

rohitk1609 — Thu, 06 Jun 2019 10:50:38 GMT

Hi Toni,

I agreed with you that 6 GB is not free out of 8 GB. Can you please tell me what is the minimum requirement of RAM and CPU free ?

HELM is successfully downgraded please see the image below:

Thanks,

Rohit

Re: Error while Installing Qlik Sense in Kubernetes

ToniKautto — Thu, 06 Jun 2019 11:02:36 GMT

Close all Powershell prompts and retry.

Re: Error while Installing Qlik Sense in Kubernetes

gustavgager — Fri, 07 Jun 2019 06:52:06 GMT

You are correct of course. My mistake.

Re: Error while Installing Qlik Sense in Kubernetes

rohitk1609 — Fri, 07 Jun 2019 08:09:47 GMT

Hi Tony,
I am really sorry to say but it is still not working and populating same error, even after restart of machine. It could be because of lack of resources on my personal laptop or HELM bug even after downgrade. I have no clue how to move forward and test this new concept.
My laptop has 2 cores, 4 logical cores and 8 Gb ram total and windows 10 OS.

Please suggest me next step if anything is possible from here.
Thanks,
Rohit

Re: Error while Installing Qlik Sense in Kubernetes

ToniKautto — Sat, 08 Jun 2019 01:39:26 GMT

I had the exact same error message, and resolved per my noticed in GitHub. It does still suggest that you tool installation is not accurate.

This is not a Qlik error message form what I can tell, so you need broaden your investigation towards the non-Qlik tools.

Re: Error while Installing Qlik Sense in Kubernetes

anmolsaini — Thu, 19 Jan 2023 21:00:20 GMT

@ToniKautto Is it still the issue for the new version of HELM?

helm install qlik -n qlik qlik/qliksense -f values.yaml
Error: INSTALLATION FAILED: unable to build kubernetes objects from release manifest: error validating "": error validating data: unknown object type "nil" in Secret.data.redis-password

Can't we pass the value instead of the "nil" value?

Re: Error while Installing Qlik Sense in Kubernetes

anmolsaini — Thu, 19 Jan 2023 21:02:37 GMT

I tried downgrading HELM but facing other issues like the tiller pod not getting deployed due to "Error image pull".

Can you please help here?

Re: Error while Installing Qlik Sense in Kubernetes

anmolsaini — Thu, 19 Jan 2023 21:31:22 GMT

I downgraded the HELM and facing :

kubectl get pods --namespace kube-system

tiller-deploy-66c7dff6d9-48zvb 0/1 ImagePullBackOff 0 3m31s
tiller-deploy-6dd5c589cd-qkzpg 0/1 ErrImageNeverPull 0 2m

Re: Error while Installing Qlik Sense in Kubernetes

ToniKautto — Fri, 20 Jan 2023 05:07:38 GMT

Qlik Sense on Kubernetes is not a supported product at this moment.

Please see Qlik Cloud as a alternative.