How to Store Secrets in Kubernetes

Posted on February 9, 2021 by David Singer
Category: Tutorials | Tags: API, Automation, Cloud, Cluster, Clusterroles, Clusters, Container, Containerization, Containerized Software, Continuous Deployment, Continuous Integration, Deployment, Developer, Development, DevOps, Docker, Docker Image, Environment, Hypervisor, K3s, k8s namespaces, Kubectl, Kubernetes, Linux, LXC, Open Source, OpenVZ, Permission, Permissions, Platform, RBAC, Resource, Role-Based, Rolebinding, Roles, Security, System, User Management, Virtual Machines, Virtualization

Reading Time: 5 minutes

What is a Secret?

A Kubernetes Secret is an object that enables us to store and manage sensitive information. A Secret can contain data like SSH keys, OAuth data, or other user authentication information like passwords. It is typically stored within a cluster in a manner native to Kubernetes. Using a Secret object provides more granular control over how highly sensitive data is used. It also lowers the risk of data exposure to unauthorized parties.

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How to Install and Configure KubeKey

Posted on February 3, 2021 by David Singer | Updated: February 4, 2021
Category: Tutorials | Tags: API, Automation, Binding, Cloud, Cluster, Clusterroles, Clusters, Container, Containerization, Containerized Software, Continuous Deployment, Continuous Integration, Deployment, Developer, Development, DevOps, Docker, Docker Image, Environment, Hypervisor, K3s, K8s, k8s namespaces, Kubectl, Kubernetes, Linux, namespaces, OCI, Open Container Initiative, Open Source, Platform, RBAC, Security, System, User Management, Virtualization, Virtualization Access

Reading Time: 5 minutes

What is KubeKey?

KubeKey is the newest Kubernetes installer for KubeSphere. KubeSphere is a distributed OS management system for cloud-native applications using Kubernetes as its kernel. It provides a plug-and-play structure for seamless integration of many third-party applications. It is somewhat similar in nature to MiniKube for installing Kubernetes.

KubeKey was developed using the Go programming language. It provides a quick method to install Kubernetes and any additional add-ons using Chart or YAML files. KubeKey uses the kubeadm application to install a Kubernetes cluster on multiple nodes in a synchronous manner to reduce the complexity of the installation and improve efficiency. Using KubeKey reduces installation time considerably compared to many other installation techniques.

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Using Telepresence to Improve Microservice Development

Posted on January 18, 2021 by David Singer | Updated: February 1, 2021
Category: Tutorials | Tags: Access, API, Automation, Cloud, Cluster, Clusterroles, Clusters, Container, Containerization, Containerized Software, Continuous Deployment, Continuous Integration, Create, Deployment, Developer, Development, DevOps, Docker, Docker Image, Dockerfile, Environment, Hypervisor, K3s, K8s, Kubectl, Kubernetes, Linux, Open Container Initiative, Open Source, Platform, Proxy, Remote Coding, Resource, Security, Server, Services, TCP, Telepresence, User Management, Virtual Machines, Virtualization, Web Application Development, Web Applications, YAML

Reading Time: 4 minutes

What is Telepresence?

Initially developed by Datawire, Telepresence is a new open-source tool supported by the CNCF (Cloud Native Computing Foundation). It allows developers to run local software while connected to a remote Kubernetes cluster. The application uses a two-way network proxy to simulate TCP connections, environmental variables, and other volumes of services as local processes. This link allows for remote work to be accomplished while seemingly local to the cluster via the proxied connection.

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A Beginner’s Guide to Chef on CentOS 8

Posted on January 12, 2021 by Thomas Janson
Category: Tutorials | Tags: Ansible, Automation, Chef, CI/CD, Cloud, Code, Container, Containerization, Containers, Cookbook, Developer, Development, DevOps, Git, GitHub, Helm, Infrastructure, Infrastructure as Code, Jenkins, Jira, Kubernetes, Linux, MiniKube, Modules, Monitoring, Nodes, Parent, Parent Server, Platform, Playbook, Private Cloud Powered by VMware and NetApp, Puppet, Server Administration, Tools, Vagrant, Virtual Machines, VirtualBox, Virtualization, VMWare

Reading Time: 4 minutes

What is Chef?

Chef is an open-source configuration management DevOps tool used for configuration and management of multiple systems in infrastructure. Using Chef, we can use so-called recipes and cookbooks to automate and speed up managing multiple systems in our environment. By using Chef, we can adjust every system in our environment to our desired state, which we defined using the code in recipes. In the process, code is continuously tested and deployed using Chef.

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How to Install Jenkins on Ubuntu 20.04

Posted on January 11, 2021 by Margaret Fitzgerald
Category: Tutorials | Tags: Ansible, Automation, CentOS, Chef, Chef-Manage, CI/CD, Cloud, Code, Container, Containerization, Containers, Cookbook, Cookbooks, Deploy, Deployment, Developer, Development, DevOps, Docker, Git, GitHub, Helm, IaC, Infrastructure, Infrastructure as Code, Jenkins, Kubelet, Kubernetes, Linux, MiniKube, Modules, Monitoring, Nagios, Nodes, Open Source, Organization, Parent, Parent Server, Platform, Prometheus, Provisioning, Puppet, Remote Management, Salt, SaltStack, Server Administration, Tools, Vagrant, Virtual Machines, VirtualBox, Virtualization, YAML

Reading Time: 7 minutes

By mfitzgerald

Introduction

In this tutorial, we are going to examine Jenkins and what its purpose is. We will begin by installing it on an Ubuntu 20.04 server and then start the software, enable the service, configure it, and finally, create a user with administrative privileges.

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How to Install Jenkins on CentOS 8

Posted on January 5, 2021 by Margaret Fitzgerald
Category: Tutorials | Tags: Ansible, Automation, CentOS, Chef, Chef-Manage, CI/CD, Cloud, Code, Container, Containerization, Containers, Cookbook, Cookbooks, Deploy, Deployment, Developer, Development, DevOps, Docker, Git, GitHub, Helm, IaC, Infrastructure, Infrastructure as Code, Jenkins, Jira, Kubelet, Kubernetes, Linux, MiniKube, Modules, Monitoring, Nagios, Nodes, Open Source, Organization, Parent, Parent Server, Platform, Playbook, Prometheus, Provisioning, Puppet, Python, Python 3, Remote Management, Salt, SaltStack, Server Administration, Slack, Tools, Vagrant, Virtual Machines, VirtualBox, Virtualization, YAML

Reading Time: 6 minutes

What is Jenkins?

Jenkins is an open-source software written in Java and Scala. This software allows users the ability to automate almost any task and, it saves significant time that can be better utilized addressing other issues. When automating tasks with Jenkins, users can optimize their workflow by quickly automating the jobs that servers cannot do themselves. In this tutorial, we will learn how to install Jenkins on CentOS 8. We will also explore what its purpose is and share several benefits that Jenkins offers. We will then configure it to run on our CentOS 8 server.

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What is Containerization in DevOps?

Posted on December 9, 2020 by Ian Desmond
Category: Tutorials | Tags: Automation, Container, Containerization, Containerized Software, Containers, Developer, Development, DevOps, Docker, Environment, Framework, Git, Hybrid, Hypervisor, Image, Install, Installation, Kubectl, Kubernetes, KVM, Linux, MiniKube, Platform, Server Administration, Tools, Ubuntu, Virtual Machines, VirtualBox, Virtualization, VM, Web Application Development, Web Applications, Web Hosting

Reading Time: 4 minutes

Containers are the future of application development and hosting. They enable DevOps, developers, and system administrators to build, test, deploy, and maintain applications quickly, securely, and efficiently. Tools built around the containerization concept provide simple solutions for basic web applications. These advanced granular configuration options provide the control many enterprise applications may need.

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How to Install and Configure Rancher K3s

Posted on December 7, 2020 by David Singer | Updated: December 8, 2020
Category: Tutorials | Tags: Access, Apache Mesos, API, Assigned, Automation, Binding, Cloud, Cluster, Clusterroles, Clusters, Container, Containerization, Containerized Software, Continuous Deployment, Continuous Integration, control, CoreOS, Create, Deployment, Developer, Development, DevOps, Docker, Docker Image, edit, Environment, grant, Hypervisor, K3s, k8s namespaces, Kubectl, Kubernetes, levels, Linux, LXC, Mesos, OCI, Open Container Initiative, Open Source, OpenVZ, Permission, Permissions, Platform, RBAC, Read, Resource, Role, Role-Based, Rolebinding, Roles, Security, specific, System, User Management, Virtual Machines, Virtualization, Web Application Development, Web Applications

Reading Time: 4 minutes

What is Rancher K3s?

K3s is an official Cloud Native Computing Foundation sandbox project that brings a lightweight, fully compliant Kubernetes distribution designed for lower resource production models like remote locations or on an IoT device. When used in conjunction with Rancher, K3s can easily be managed from within the Rancher orchestration platform.

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What is Infrastructure as Code? (IaC)

Posted on December 3, 2020 by Margaret Fitzgerald
Category: Tutorials | Tags: Ansible, Automation, Chef-Manage, Cloud, Code, Container, Containerization, Containers, Deploy, Deployment, Developer, Development, DevOps, Docker, Helm, IaC, Infrastructure, Infrastructure as Code, Jenkins, Kubelet, Kubernetes, Linux, Monitoring, Nodes, Open Source, Organization, Platform, Provisioning, Puppet, Remote Management, Salt, SaltStack, Server Administration, Tools, Vagrant, Virtual Machines, VirtualBox, Virtualization, VMWare, YAML

Reading Time: 6 minutes

Introduction: What is IaC?

Today we will become acquainted with a concept known as Infrastructure as Code. The idea of Infrastructure as Code is becoming more and more popular today. IaC is a method used to manage and provision a data center via defined machine-readable files instead of physical hardware configuration or other interactive configuration tools. This article will share what it is used for, why it is important, and why businesses strive to utilize this platform to achieve a desired set of results. It is essential to understand that we will consider both the theoretical and practical parts of IaC.

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DevOps: A New Perspective on Shared Automation

Posted on November 17, 2020 by Thomas Janson | Updated: November 23, 2020
Category: Tutorials | Tags: Ansible, Automation, CentOS, Chef, Chef-Manage, CI/CD, Cloud, Code, Container, Containerization, Containers, Cookbook, Cookbooks, Deploy, Deployment, Developer, Development, DevOps, Docker, Git, GitHub, Helm, IaC, Infrastructure, Infrastructure as Code, Jenkins, Jira, Kubelet, Kubernetes, Linux, MiniKube, Modules, Monitoring, Nagios, Nodes, Open Source, Organization, Parent, Parent Server, Platform, Playbook, Prometheus, Provisioning, Puppet, Python, Python 3, Remote Management, Salt, SaltStack, Server Administration, Slack, Tools, Vagrant, Virtual Machines, VirtualBox, Virtualization, YAML

Reading Time: 9 minutes

What is DevOps?

DevOps is a set of various tools, practices, and ideals that combine software development (Dev) and IT Operations (Ops) into a single unifying force. It allows for better collaboration between developers, operations teams, system administrators, and system engineers. Their streamlined goal is to continually provide a high-value software product to the customer at high speed while monitoring and improving the overall process than using traditional software and infrastructure management.

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