Kubernetes Scaffolding Script
What is this?
While experimenting with Kubernetes on DigitalOcean, I found myself spinning up clusters fairly often to try new things. I got very familiar with the process of doing this and decided to write a guide covering how to set up a barebones cluster, along with common tools that I personally use. This bash script project is an extension of that guide, automating the process of setting up a cluster on DigitalOcean and installing a subset of software to get fresh cluster up and running quickly.
What are the requirements?
- MacOS Mojave (Untested on other Unix based systems, or other versions of MacOS)
- Homebrew
- Kubectl
- Helm
- Doctl
What does it install and configure?
The script will first and foremost check for the proper dependencies. These dependencies include:
- Homebrew
- Kubectl
- Helm
- Doctl
If these dependencies are not found on the system, the script will attempt to install them for you.
Note: The Homebrew installation may take a considerable amount of time if the X Code Development Tools are not found on your system.
Once these dependencies are present the script will configure the following:
- Creating a Kubernetes cluster on DigitalOcean
- Copying a kubeconfig file to your local machine (If opted against creating a cluster)
- Initializing Helm/Tiller
- Installing an Nginx Ingress
- Installing Cert Manager
- Installing and configuring Jenkins
- Installing and configuring Harbor
- Installing Kubernetes Dashboard
Note: Setting up the Ingress WILL configure a DigitalOcean Load Balancer. This is a service that DigitalOcean charges for, so keep that in mind.
How do I use this script?
Clone the repository onto your local machine.
git clone https://github.com/DefrostedTuna/kubernetes-scaffolding.git && cd kubernetes-scaffolding
Make the script executable.
chmod +x init-cluster.sh && chmod -R +x scripts
Run the script.
./init-cluster.sh
The script will guide you through the setup process, prompting for input when necessary. Follow the instructions in the script and you'll be good to go!