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Pre-flight checks: error message

Luiz Eduardo Serrano
Userlevel 4
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Hi!

I am starting a small lab based on the following Veeam webinar:

 

The steps to deploy the lab are here:

https://github.com/MichaelCade/project_pace/blob/main/Zero%20to%20Hero%20-%20Kubernetes%20and%20Kasten%20K10.md

I deployed this single environment in Oracle Virtual Box VM and Ubuntu desktop.

But I have being problems with pre-flight checks:

 

Some components are in error state and trying to restart.

The Kasten GUI is working, but it is presenting the error: Request failed with status code 500 (dashboardbff-svc).

 

 

I can create policies but it is not possible to apply the “run once” command, for sample. Nothing happens.

Do you know how can i fix it?

Thanks for your help! :-)

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Best answer by Luiz Eduardo Serrano 8 February 2023, 15:48

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Luiz Eduardo Serrano. Cloud Architect, Engineer. VMware Tanzu Vanguard/VCP Security/Facilitator, RedHat Ansible SE/Instructor, AWS Architect, 4xHPE Master ASE/Instructor, Veeam VMCE, Nutanix NCA, Cisco-HPE Cloud & DC champion. Blog: https://cloudnroll.com/

9 comments

Hagag
Userlevel 5
Badge +2

Hello @Luiz Eduardo Serrano 
it is mandatory to have your preflight script run successfully.This script runs in a pod in the cluster and does the following:

  • Validates if the Kubernetes settings meet the K10 requirements.

  • Catalogs the available StorageClasses.

  • If a CSI provisioner exists, it will also perform a basic validation of the cluster's CSI capabilities and any relevant objects that may be required. 

2nf point is you can not use the kasten GUI/ dashboard without having most of the k10 up and running, for example, I see the catalog pod is in pending status, similar to etcd in Kubernetes, catalog is a backend store, all the information for everything happens in k10 is stored in the catalog.

Jobs pod also is not running, you can not run any action without that pod up and running.

i recommend fixing the pre-flight check prerequisites in order to have it run and get a summary of what is missing or required in order to have k10 working properly.  

Luiz Eduardo Serrano
Userlevel 4
Badge +2 
Thanks, Hagag! Please, is there any more detailed material for this troubleshooting? I'm not an expert on K8s and if there's some kind of guide it would help a lot. I followed all the steps given in the script but I am stuck now. Luiz.
Luiz Eduardo Serrano. Cloud Architect, Engineer. VMware Tanzu Vanguard/VCP Security/Facilitator, RedHat Ansible SE/Instructor, AWS Architect, 4xHPE Master ASE/Instructor, Veeam VMCE, Nutanix NCA, Cisco-HPE Cloud & DC champion. Blog: https://cloudnroll.com/
MicoolPaul
Userlevel 7
Badge +20

Based on so much being in a pending state for so long, does Ubuntu have enough resources provisioned to run?

Michael Paul - #VeeamLegend | #VeeamVanguard | Veeam Certified Architect | VMware vExpert | https://micoolpaul.com | Twitter: @MicoolPaul | Mastodon: @micoolpaul@masto.nu | Bluesky: @micoolpaul.bsky.social
Luiz Eduardo Serrano
Userlevel 4
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Hi MicoolPaul. Thanks for your answer. I think so, but I will check again with the requirements. I will also deploy in other vSphere host with more computational power. The pre-flight checks error message is about not being able to find the jq. I deployed it manually but the message remained. Well, I will deploy in other environment tomorrow, following each webinar step, and let you know how it went. Thanks for your help, user group! :-)

Luiz Eduardo Serrano. Cloud Architect, Engineer. VMware Tanzu Vanguard/VCP Security/Facilitator, RedHat Ansible SE/Instructor, AWS Architect, 4xHPE Master ASE/Instructor, Veeam VMCE, Nutanix NCA, Cisco-HPE Cloud & DC champion. Blog: https://cloudnroll.com/
Madi.Cristil
Userlevel 7
Badge +7

@jaiganeshjk 

Madi Cristil
Hagag
Userlevel 5
Badge +2

@Luiz Eduardo Serrano  you can describe the pod to get more insight into why the pods are not running, using the command and trying to fix the issue based on the error message you have in the output.

kubectl describe <POD_NAME> -n kasten-io

 

but it is much easier to fix the pre-flight checks script to have an overview of what is missing or required in order to have k10 working properly.  

for jq package, your OS has to be able to locate the correct executable. PATH specifies program directories and instructs the system where to search for a program to run.

try to the below commands to search the path of jq ( i think it will fail )
which jq
command -v jq

Geoff Burke
Userlevel 7
Badge +22

Hi MicoolPaul. Thanks for your answer. I think so, but I will check again with the requirements. I will also deploy in other vSphere host with more computational power. The pre-flight checks error message is about not being able to find the jq. I deployed it manually but the message remained. Well, I will deploy in other environment tomorrow, following each webinar step, and let you know how it went. Thanks for your help, user group! :-)

I don’t think jq is installed by default in Ubuntu but that is not the problem here,You can install jq like this

sudo apt install jq -y

If the pre-script fails then you have to solve the issues it reports first before attempting to install. Although I think you said that you deployed it manually.

What exactly is the script reporting when failing?

 

 

VMCA2022, VMCE2023, CKA, CKAD, KCNA, LFCS, PCA,TARS
Geoff Burke
Userlevel 7
Badge +22

By the way I normally also run kubestr as well before doing an installation, although the k10 prescript does similar thing (creates a pod tests csi etc) but I just like to get a benchmark for storage as well.

 

https://kubestr.io/

VMCA2022, VMCE2023, CKA, CKAD, KCNA, LFCS, PCA,TARS
Luiz Eduardo Serrano
Userlevel 4
Badge +2

Hello! I really appreciate everyone's attention and orientation.

I deployed a new environment from scratch in an Openshift environment. No morer errors on K10´s services startup. Everything is fine now!

Thanks! :-)

 

 
Luiz Eduardo Serrano. Cloud Architect, Engineer. VMware Tanzu Vanguard/VCP Security/Facilitator, RedHat Ansible SE/Instructor, AWS Architect, 4xHPE Master ASE/Instructor, Veeam VMCE, Nutanix NCA, Cisco-HPE Cloud & DC champion. Blog: https://cloudnroll.com/

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