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helm : Error converting YAML to JSON: yaml: line xx: Expected key not found

I have a json encoded string in my values.yaml file ->values.yamlnetwork:cidrs:"[\"123.123.123.123/32\",\"123.124.125.125/32\"]" Now, I want to This value is used as a list of strings in my network policy exit ipblock. But I can't convert it to a list. Currently I am following this approach to achieve the requirement but it fails with - errorconvertingyamltojson:yaml:linexx:didnotfindexpect

Feb 10, 2024 pm 12:30 PM

How do I make an authorization request from cronjobs to a secure API endpoint?

I have a golang application that does API key authorization via JWT tokens and I'm using Kubernetes. So, this golang application is in a pod. Now I want to create another application for cronjobs to access the golang endpoint once a week. What I need: How to perform/skip authorization? Skip: Ingress is not needed here as I can simply call it internally. Will this help the case? What I've tried: I've tried keeping the cronjobs and api in the same application so I can simply call the service instead of the endpoint, but this

Feb 09, 2024 pm 11:50 PM

Building a Kubernetes Operator for rolling updates

I have created a Kubernetes application (e.g. deploy D1, using docker image I1) which will run on the client cluster. Requirement 1: Now, I want to do a rolling update every time I update my docker image I1 without any effort from the client (somehow the client cluster should automatically pull the latest docker image) Requirement 2: Whenever I When a specific configMap is updated, the client cluster should all automatically start using the new configMap. How should I achieve this? Using Kubernetes Cronjobs? Kubernetes operator? or something else

Feb 09, 2024 pm 10:18 PM

systemd: A super toolbox on Linux

systemd is a modern initialization system on Linux. It is responsible for managing system startup, service running, user login, etc. The goal of systemd is to provide a fast, flexible, and scalable system management framework. However, systemd is not just an initialization system, it also provides many other functions and tools, allowing you to manage and monitor your Linux system more conveniently. In this article, we will introduce three amazing things you can do with systemd, they are: Simplify Linuxps: Use the systemd-cgtop command to view the system load based on control groups Linux scheduled tasks: Use systemd timers to schedule periodic execution of

Feb 09, 2024 pm 05:42 PM

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Kubernetes Watch returns empty results (empty type, empty object)

I'm using Kubernetesclient-go to monitor some resources. funcwatchGVR(ctxcontext.Context,args*Arguments,dynClient*dynamic.DynamicClient,gvrschema.GroupVersionResource)error{//ifgvr.Group=="events.k8s.io"&&gvr.Resource==fmt.Printf("Watching%q% q\n",gvr

Feb 09, 2024 pm 12:06 PM

Unable to execute shell on K8S pod

Use rancher-2.6.6 to install k8s (v1.23.7+rke2r2). Related questions are here. I cannot execute shell on any container in k8s (v1.23.7+rke2r2). The log is a bit long, I don't know if it will be helpful. I'm new to go and it took me a few hours and I don't know how to solve it. Any help would be very happy. [root@123~]#/var/lib/rancher/rke2/bin/kubectl--kubeconfigrke2.yaml-nminio--v=9exec--stdin--ttyconsol

Feb 09, 2024 pm 12:00 PM

Set up Kubernetes Pods with API calls using Go and the Operator SDK

I'm trying to create a controller that can create and delete Pods via API calls using operator-sdk and Go. The controller should be able to accept a POST call with information like {imageTag:"",namespace:""} to set up a Pod that can return the podId, and also be able to delete the Pod via an API call using the podId. I've looked at some tutorials, But it's not clear to me how Go operators intercept API calls. is it possible? Any help on this matter would be greatly appreciated. Thanks.

Feb 09, 2024 am 11:00 AM

Exit after the container is finished running

My golangfiber server automatically exits with the following message when running on googlecloudrun: containercalledexit(0). I run it using the following dockerfile #usetheofficalgolangimagetocreateabinary.fromgolang:busterasbuilder#createandchangetotheappdirectory.workdir/app#retrieveap

Feb 09, 2024 am 09:50 AM

How to create CDKTF script in golang to create Kubernetes namespace

I have terraform script for creating kubernetes namespace but I can't find the import statement for the package in golang that does the same job in ckdtf for golang. resource"kubernetes_namespace""stage-namespace-1"{depends_on=[google_container_cluster.primary]metadata{annotations={name="example-annota"

Feb 09, 2024 am 09:03 AM

How to return default false if property does not exist in values.yaml file?

yaml file. I have a value defined under global like this global:logging:log4j:enabled:true I also have a helper function {{-define "helm-basic-template.logging-enabled"-}}{{.Values .global.logging.log4j.enabled|default"false"}}{{-end-}}The property global.logging.log4j.enabled may not exist, in this case

Feb 09, 2024 am 08:51 AM

How to get 'friendly' responses from Kubernetes APIServer using ReST interface

I am using golangclient-go library to communicate with kubernetes api server at restget, post level. The response received is not a well-formed json structure, nor is it a "kind" of API object. The program fragment is: kubeconfig:=filepath.join(os.getenv("home"),".kube","config",)config,err:=clientcmd.buildconfigfromflags("",kub

Feb 09, 2024 am 08:10 AM

How to add environment variables to kubernetes deployment using golang?

I need to set or add environment variables to an existing kubernetes deployment using golang. It should be added to the configuration after reboot. func(r*SparkETLReconciler)DoRestart(whttp.ResponseWriter,req*http.Request){ctx:=context.TODO()r.Log.Info("restarthit!")fmt.Fprintf(w,"Hithere,Ilove%s !",req.URL.Path[1:

Feb 08, 2024 pm 11:45 PM

How to return custom user-friendly error messages in Kubernetes?

I have a golang backend that talks to k8s. I want to rephrase the error response I get from k8s and send it to the frontend. I want to return a meaningful validation error message to the user when he adds an invalid name and something is already there...I want something generic instead of hardcoding it in the controller for each endpoint . I'm using kubernetes/client-go. First error: For example, let's say I want to add a hotel to etcd, when I try to add the hotel name: hotel123, the hotel already exists. I get this error message: \"hotel123\" already exists. What I want: hotel123

Feb 08, 2024 pm 11:12 PM

Terratest Helm Charts fail in Go unit tests

I'm trying to use terratest to unit test my helm charts, but I'm running into a strange error: Here is my unit test: packagegrafanaimport("fmt""testing"corev1"k8s.io/api/core/v1"" github.com/gruntwork-io/terratest/modules/helm")functestgrafanahelmcharttemplate(t*testing.t){/

Feb 08, 2024 pm 11:06 PM