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With the removal docker as the default container runtime in kubernetes. When a situation arises where you need to debug the container application container You can use Crictl and Nerdctl and debug the issue quickly Crictl Install crictl VERSION="v1.22.0" wget https://github.com/kubernetes-sigs/cri-tools/releases/download/$VERSION/crictl-$VERSION-linux-amd64.tar.gz sudo tar zxvf crictl-$VERSION-linux-amd64.tar.gz -C /usr/local/bin Create a endpoint configuration file (crictl.yaml) Example To interact with containerd runtime env cat /etc/crictl.yaml runtime-endpoint: unix:///run/containerd/containerd.sock image-endpoint: unix:///run/containerd/containerd.sock timeout: 2 debug: false pull-image-on-create: false To interact with docker runtime cat /etc/crictl.yaml runtime-endpoint: unix:///var/run/dockershim.sock image-endpoint: unix:///var/run/dockershim.sock timeout: 2 debug: false pull-image-on-create: false To interact with Crio runtime cat /etc/crictl.yaml runtime-endpoint: unix:///run/crio/crio.sock image-endpoint: unix:///run/crio/crio.sock timeout: 2 debug: false Execute the crictl commands Example: ...

Currently to access and manage xenserver cluster you need a xencenter installed in a windows system. This could be a limitation for the users of linux and mac Meanwhile you can access vmware exsi servers and also manage the clusters of vcenter via http To overcome this limitation you can use the XCP hypervisor XCP is open source hypervisor based on XenServer. Download the XCP-ng https://xcp-ng.org/#easy-to-install https://xcp-ng.org/docs/install.html#iso-installation Install the xcp-center for windows systems to access the XCP hypervisors https://github.com/xcp-ng/xenadmin/releases/ ...

Using Elastic search is a great tool to analysze logs generated by your application Elastic search is made up of 3 parts Elastic search –> the core search engine Logstah –> to parse the logs Kibana –> visualization Here i have imported the cloudstack management server logs to the ELK and I can perform various analytics Follow the below link to set up your elk infrstructure https://www.digitalocean.com/community/tutorials/how-to-install-elasticsearch-logstash-and-kibana-elastic-stack-on-ubuntu-18-04 Once done make sure your elastic, logstash, and kibana process are able to communicate with each other ...

Terraform is a tool to deploy resources on cloud It is an infrastructure as code tool Generally the plugins are available at https://registry.terraform.io/ To use the plugins which are archived and not available in the terraform registry Follow the steps a small tweak is necessary Currently the cloudstack plugin is archived https://github.com/hashicorp/terraform-provider-cloudstack https://github.com/hashicorp/terraform-provider-cloudstack/blob/stable-website/website/docs/index.html.markdown Download the terrform provider for cloudstack based on the os you are running https://releases.hashicorp.com/terraform-provider-cloudstack/0.3.0/ On linux and mac Move it ...

After hearing frequent mentions of Raspberry pi use cases, I had decided to buy Raspberry pi 4 model. The site https://www.thingbits.in was giving best discounts on pi and it’s accessories. The best use case of pi was the implementation of PI-HOLE which blocks all the ads on websites. Here are links i used for the complete installation of pi and implementation of PI-HOLE https://docs.pi-hole.net/ https://medium.com/swlh/how-to-set-up-pi-hole-2293246dc8ed https://filterlists.com/lists/pl-host-file

To download the songs from spotify https://gist.github.com/kiranchavala/36afff2694c620421e26dd8c85cd74a4 References https://github.com/SathyaBhat/spotify-dl https://sathyasays.com/2015/12/29/spotify-dl-download-your-spotify-my-music-songs-as-mp3/ https://medium.com/@sachithmuhandiram/youtube-dl-cheatsheet-bcc0782e7124

k9s is an excellent cli tool to interact with the kubernetes clusters brew install derailed/k9s/k9s Ref: https://k9scli.io/topics/install/ https://k9scli.io/

K3s is light weight kubernetes distribution from Rancher https://gist.github.com/kiranchavala/71835ec52a2c5020a5e439345b57d744 Ref: https://k3s.io/ https://github.com/alexellis/k3sup

Merging kubeconfig files When you have multiple kubernetes clusters, manually entering to the kubectl config is time consuming and error prone Add the two config files to the env var export KUBECONFIG=/.kube/config:/Desktop/configFile2.yaml Review that you have two configurations in one view kubectl config view View the raw config and output to a new file kubectl config view –raw > test.yaml cp test.yaml .kube/config env you can unset the KUBECONFIG later on ...

Add alias in your .zshrc file alias history=“history 0” source ~/.zshrc