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Vineet Kumar
Vineet Kumar

21 Followers

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Jul 15

Deploy/Install Rancher 2.7+ in HA with RKE1

To deploy rancher in HA mode required three machine (Cluster Node Machine) with one deployment machine (i.e. Four Machines Required) a. Kubectl and RKE1 should install on Deployment machine. b. From Deployment node to cluster node should be passwordless c. Docker should install (apt install docker.io …

Deploy

2 min read

Deploy

2 min read


Jun 24

The differences between Docker, containerd, CRI-O and runc

Containers aren’t tightly coupled to the name Docker. You can use other tools to run containers You can be running containers with Docker, or a bunch of other tools which aren’t Docker. docker is just one of the many options, and Docker (the company) creates some of the awesome tools…

Diffrence

6 min read

The differences between Docker, containerd, CRI-O and runc
The differences between Docker, containerd, CRI-O and runc
Diffrence

6 min read


Jun 24

Mapping from dockercli to crictl (Life after docker is crictl)

crictl is a command-line interface for CRI-compatible container runtimes. You can use it to inspect and debug container runtimes and applications on a Kubernetes node. crictl and its source are hosted in the cri-tools repository. This page provides a reference for mapping common commands for the docker command-line tool into…

Life

1 min read

Life

1 min read


Apr 8

Speed up Ubuntu 18.04

Keep Ubuntu updated sudo apt-get update sudo apt-get upgrade Use lightweight desktop alternatives sudo apt-get install lubuntu-desktop Once installed, you can load Lubuntu desktop from the login screen by clicking the icon next to your name. Monitor startup apps service --status-all sudo service <name> stop sudo apt-get remove <program name> …

Speed

1 min read

Speed

1 min read


Apr 8

Some tips to improve your internet connection in Ubuntu 18.04

These are only a few recommended settings with which they can help you improve your connection. I should also mention that, if any of these settings did not work for you or causes a conflict, simply revert the changes and return to the configuration you had. So that you must…

3 min read

3 min read


Mar 28

Share Folder Between Guest (Linux) and Host (LInux)in virt-manager (KVM/Qemu/libvirt)

Create Directory in HOST Machine [ostechnix@vmhost ~]$ mkdir -p /home/vk/Downloads && chmod 777 /home/vk/Downloads Setting On virt-manager a. Turn Of guest Machine If running b. In the next window, click “Show virtual hardware details” button on the menu bar and click “Add Hardware” button on the left pane. Fill Following Entry

Share Folder

1 min read

Share Folder Between Guest (Linux) and Host (LInux)in virt-manager (KVM/Qemu/libvirt)
Share Folder Between Guest (Linux) and Host (LInux)in virt-manager (KVM/Qemu/libvirt)
Share Folder

1 min read


Aug 7, 2022

Create containerized Core DNS server

Run the following commands to make required Directory a. mkdir -p /home/coredns/ b. cd /home/coredns/ c. vi domain.name.db (and paste the below content) domain.name. IN SOA dns.domain.name. domain.name.in. 2015082541 7200 3600 1209600 3600 service-name IN A 10.10.x.x service2 IN A 10.110.x.x d. Create the Core File for dns forwarder vi…

Create

2 min read

Create

2 min read


Aug 6, 2022

Dockerized Load Balancer Implementation

Load balancing architecture is to increase the availability and reliability of applications, so if a certain number of clients request some…

Dockerize

3 min read

Dockerized Load Balancer Implementation
Dockerized Load Balancer Implementation
Dockerize

3 min read


Jul 28, 2022

Disk Benchmarking using FIO

To benchmark persistent disk performance, use FIO instead of other disk benchmarking tools such as dd. By default, dd uses a very low I/O queue depth, so it is difficult to ensure that the benchmark is generating a sufficient number of I/Os and bytes to accurately test disk performance. To…

Fio

4 min read

Fio

4 min read


Jan 14, 2022

Save all Docker images and push to docker registry or copy to another machine

In this article will cover to push/save all docker images from local machine and save to remote machine or private registry Example 1: Save all Docker images and load to another machine Save all docker images in local machine docker save $(docker images --format '{{.Repository}}:{{.Tag}}') -o allinone.tar scp it to…

Save And Load

4 min read

Save And Load

4 min read

Vineet Kumar

Vineet Kumar

21 Followers

Devops Engineer https://vineetkumar03.github.io

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