How to Install Davis on Fedora CoreOS Latest

Introduction

Davis is an open-source tool for managing Kubernetes clusters. It offers a web-based user interface that allows administrators to monitor and troubleshoot Kubernetes clusters. In this tutorial, we will guide you through the process of installing Davis on a Fedora CoreOS latest version.

Prerequisites

• A Fedora CoreOS latest version with root access
• A Kubernetes cluster
• A web browser

Step 1: Install Docker

Davis is a containerized application, so you need to install Docker on your Fedora CoreOS. To do this, run the following command:

$ sudo podman pull docker.io/library/docker:20.10.6

This command will download the Docker container image.

Step 2: Install Davis

Next, we need to install Davis. To do this, clone the Davis Github repository:

$ git clone https://github.com/tchapi/davis.git

Navigate to the Davis directory:

$ cd davis

Build the Davis Docker container image:

$ sudo docker build -t davis .

This command will create a Docker image named "davis." It may take several minutes to complete.

Step 3: Deploy Davis to Kubernetes

Now that we have a Docker image, we need to deploy Davis to our Kubernetes cluster.

Create a Davis Kubernetes deployment:

$ kubectl create deployment davis --image=davis

Next, create a Kubernetes service for Davis:

$ kubectl expose deployment davis --port=8080 --target-port=8080 --type=NodePort

This command will create a Kubernetes service that exposes Davis on port 8080.

Step 4: Verify the Installation

You can now access Davis by opening a web browser and navigating to http://<kubernetes-node>:<node-port>. Replace <kubernetes-node> with the IP address or hostname of one of your Kubernetes nodes, and replace <node-port> with the NodePort number you specified when creating the Davis service.

Conclusion

You've successfully installed Davis on your Fedora CoreOS latest version. Davis offers an easy-to-use web-based interface for monitoring and troubleshooting your Kubernetes cluster.