├── .gitignore ├── LICENSE.md ├── README.md ├── Vagrantfile ├── cluster-settings.yaml └── provision ├── init.sh ├── longhorn.sh ├── master.sh ├── metallb.sh ├── worker.sh └── yaml ├── longhorn-values.yaml └── metallb.yaml /.gitignore: -------------------------------------------------------------------------------- 1 | .vagrant 2 | generated/* -------------------------------------------------------------------------------- /LICENSE.md: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 3, 29 June 2007 3 | 4 | Copyright (C) 2007 Free Software Foundation, Inc. 5 | Everyone is permitted to copy and distribute verbatim copies 6 | of this license document, but changing it is not allowed. 7 | 8 | Preamble 9 | 10 | The GNU General Public License is a free, copyleft license for 11 | software and other kinds of works. 12 | 13 | The licenses for most software and other practical works are designed 14 | to take away your freedom to share and change the works. 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It is safest 630 | to attach them to the start of each source file to most effectively 631 | state the exclusion of warranty; and each file should have at least 632 | the "copyright" line and a pointer to where the full notice is found. 633 | 634 | 635 | Copyright (C) 636 | 637 | This program is free software: you can redistribute it and/or modify 638 | it under the terms of the GNU General Public License as published by 639 | the Free Software Foundation, either version 3 of the License, or 640 | (at your option) any later version. 641 | 642 | This program is distributed in the hope that it will be useful, 643 | but WITHOUT ANY WARRANTY; without even the implied warranty of 644 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 645 | GNU General Public License for more details. 646 | 647 | You should have received a copy of the GNU General Public License 648 | along with this program. If not, see . 649 | 650 | Also add information on how to contact you by electronic and paper mail. 651 | 652 | If the program does terminal interaction, make it output a short 653 | notice like this when it starts in an interactive mode: 654 | 655 | Copyright (C) 656 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 657 | This is free software, and you are welcome to redistribute it 658 | under certain conditions; type `show c' for details. 659 | 660 | The hypothetical commands `show w' and `show c' should show the appropriate 661 | parts of the General Public License. Of course, your program's commands 662 | might be different; for a GUI interface, you would use an "about box". 663 | 664 | You should also get your employer (if you work as a programmer) or school, 665 | if any, to sign a "copyright disclaimer" for the program, if necessary. 666 | For more information on this, and how to apply and follow the GNU GPL, see 667 | . 668 | 669 | The GNU General Public License does not permit incorporating your program 670 | into proprietary programs. If your program is a subroutine library, you 671 | may consider it more useful to permit linking proprietary applications with 672 | the library. If this is what you want to do, use the GNU Lesser General 673 | Public License instead of this License. But first, please read 674 | . 675 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | 2 | # K8S-VAGRANT 3 | 4 | A configurable, flexible, and consistent local Kubernetes cluster (or clusters) with support for most things that you would expect in a cluster such as `LoadBalancer` and persistent storage out of the box. 5 | 6 | 7 | ## About The Project 8 | 9 | This uses [Vagrant](https://www.vagrantup.com/) and [kubeadm](https://kubernetes.io/docs/reference/setup-tools/kubeadm/) to spin up a local Kuberentes cluster. It then installs [metallb](https://metallb.universe.tf/) for a local LoadBalancer and [Longhorn](https://longhorn.io) for persistent volumes. It exposes several of the more common things one might like to configure through the `settings.yaml` file such as Kubernetes version and the configuration of the virtual machines. 10 | 11 | ### KISS 12 | 13 | This project is meant to follow the **K**eep **I**t **S**imple **S**tupid philosophy. I want the project to be organized in a way and function in a way that it's dead easy for people to use and modify it in a way that works best for them. 14 | 15 | This means I will do my best to ensure well commented code, no overly convoluted code, and no strange dependencies or libraries. 16 | 17 | **Why did I make this**: 18 | * I needed a local Kubernetes cluster running on Virtual Machines instead of within containers because I needed `open-iscsi` and mount propagation which doesn't work properly within containers 19 | * I wanted something simple that I understood instead of having to learn another tool exclusively for local development, and then figure out how to translate that to my homelab cluster. Using Vagrant it's simply Virtual Machines. 20 | 21 | **What about Minikube, KiND, etc.** 22 | 23 | They're great, and may be the right fit for your needs. I have used them and they work great, they just weren't what I was looking for. Also, as mentioned earlier, I didn't want to learn another tool. 24 | 25 |

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26 | 27 | 28 | 29 | ## Built With 30 | 31 | [![Kubernetes](https://img.shields.io/badge/kubernetes-%23326ce5.svg?style=for-the-badge&logo=kubernetes&logoColor=white)](https://kubernetes.io/) 32 |
      The whole point of the project is to spin up a Kubernetes cluster. 33 | 34 | [![Vagrant](https://img.shields.io/badge/vagrant-%231563FF.svg?style=for-the-badge&logo=vagrant&logoColor=white)](https://www.vagrantup.com/) 35 |
      Used to provision the virtual machines using [VirtualBox](https://www.virtualbox.org/) 36 | 37 | [![Shell Script](https://img.shields.io/badge/shell_script-%23121011.svg?style=for-the-badge&logo=gnu-bash&logoColor=white)](https://www.gnu.org/software/bash/) 38 |
      Makes heavy use of bash to provision the Virtual Machines after they are created. 39 | 40 | ### Cluster Specifics 41 | 42 | The cluster is built using `kubeadm`, using containerd as a CRI, and Calico for pod networking. It then adds the following additional software if configured to do so. 43 | 44 | [metallb](https://metallb.universe.tf/) 45 |
      Metallb is optionally installed to provide a local load balancer into the cluster. 46 | 47 | [Longhorn](https://longhorn.io) 48 |
      Longhorn is optionally installed to provide persistent volumes with support for ReadWriteMany. 49 | 50 |

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51 | 52 | 53 | ## Getting Started 54 | 55 | This project requires only that you have [Vagrant](https://www.vagrantup.com/) and [VirtualBox](https://www.virtualbox.org/) installed on your machine, and have enough resources available to run your configured number of machines with the amount of allocated resources. 56 | 57 | With the default configuration it builds **1 master node and 1 worker** node each with **2Gb of RAM** and **2 cores** which is the suggested minimum from the Kubernetes project. 58 | 59 | #### Software 60 | 61 | Install [VirtualBox](https://www.virtualbox.org/) from their website, Chocolatey on Windows, from your package manager on Linux, or with Brew on Mac. 62 | 63 | **Windows** 64 | ``` 65 | choco install virtualbox 66 | ``` 67 | 68 | **Linux (Debian/Ubuntu)** 69 | ``` 70 | apt install virtualbox 71 | ``` 72 | 73 | **Mac** 74 | ``` 75 | brew install virtualbox 76 | ``` 77 | 78 | Install [Vagrant](https://www.vagrantup.com/) using Chocolatey on Windows, from your package manager on Linux, or with Brew on Mac. 79 | 80 | **Windows** 81 | ```powershell 82 | choco install vagrant 83 | ``` 84 | 85 | **Linux (Debian/Ubuntu)** 86 | ```bash 87 | apt install vagrant 88 | ``` 89 | 90 | **Mac** 91 | ```bash 92 | brew install vagrant 93 | ``` 94 | 95 | ## Usage 96 | 97 | ### Building your local cluster. 98 | 99 | 1. Clone the repo 100 | ```bash 101 | git clone https://github.com/danhenrydev/k8s-vagrant.git 102 | ``` 103 | 2. Modify the configuration file at `cluster-settings.yaml` to your liking. It comes with sane defaults. 104 | 105 | 3. Change into the directory and run `vagrant up` 106 | ```bash 107 | cd k8s-vagrant 108 | vagrant up 109 | ``` 110 | 4. Copy the kubectl config from `generated/config` into your local `.kube` or set the environment variable to access the cluster from your local machine. 111 | ```bash 112 | mkdir ~/.kube 113 | cp generated/config ~/.kube/config 114 | kubectl get nodes 115 | 116 | ### OR ### 117 | 118 | KUBECONFIG=generated/config 119 | kubectl get nodes 120 | ``` 121 | 122 | ### Pausing Your Cluster 123 | When you aren't using your cluster it makes sense to shut it down, but not destroy it as it can take a significant amount of time to rebuild in the future. Fortunately Vagrant gives us this option. 124 | 125 | **Pause your cluster** 126 | ``` 127 | cd k8s-vagrant 128 | vagrant suspend 129 | ``` 130 | 131 | **Resume your cluster** 132 | ``` 133 | cd k8s-vagrant 134 | vagrant resume 135 | ``` 136 | 137 | ### Destroying your cluster 138 | When you're finished with your cluster, or you've broken it. You can destroy your cluster to re-initialize it for a fresh start. 139 | 140 | ``` 141 | cd k8s-vagrant 142 | vagrant destroy 143 | ``` 144 | 145 | 146 | 147 |

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148 | 149 | 150 | 151 | ## Future Changes 152 | 153 | Although the project seems to be working well for me as is, there are some things that I would like to add in the future that I haven't gotten around to yet. Here's what I've thought about, in no specific order. 154 | 155 | - [ ] Add a Traefik Ingress option 156 | - [ ] Add support for VmWare Workstation 157 | - [ ] Add support for QEMU 158 | - [x] ~~Pretty up the bash scripts and output~~ 159 | - [ ] Generate a file at the end with relevant information 160 | - [ ] Declutter the Vagrantfile 161 | - [ ] Settings sanity check before running vagrantfile 162 | 163 | 164 |

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165 | 166 | 167 | 168 | 169 | ## Contributing 170 | 171 | If you have a suggestion, please reach out to me via Twitter and I'll see what I can do to get it added. 172 | 173 | If you run into a problem or bug and it's not something you can fix, please feel free to create an issue on Github and I will see what I can do to get it fixed. 174 | 175 | If you run into a problem or have an idea, and it IS something you can fix, please create a PR. When doing so, please keep in mind the KISS principle as mentioned in the About this Project section. 176 | 177 |

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178 | 179 | 180 | ## License 181 | 182 | Distributed under the GPLv2 License. See `LICENSE.md` for more information. 183 | 184 |

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185 | 186 | 187 | 188 | ## Contact 189 | 190 | Daniel Henry - [@danhenrydev](https://twitter.com/danhenrydev) 191 | 192 | Project Link: [https://github.com/danhenrydev/k8s-vagrant](https://github.com/danhenrydev/k8s-vagrant) 193 | 194 |

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195 | 196 | 197 | ## Acknowledgments 198 | 199 | Obviously I'm not the first to make something like this, so thank you to everyone that has solved some of these problems in the past. Some specific projects that helped me a lot below. 200 | 201 | * [https://github.com/techiescamp/vagrant-kubeadm-kubernetes](https://github.com/techiescamp/vagrant-kubeadm-kubernetes) 202 | 203 | * [https://github.com/justmeandopensource](https://github.com/justmeandopensource) 204 | 205 | 206 | 207 |

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-------------------------------------------------------------------------------- /Vagrantfile: -------------------------------------------------------------------------------- 1 | require "yaml" 2 | s = YAML.load_file "cluster-settings.yaml" 3 | 4 | # prepare networking information 5 | # Split the IP address into octets 6 | octets = s["cluster"]["networking"]["startingIP"].split('.') 7 | 8 | # Extract the first three octets with a dot separator 9 | network = octets[0..2].join('.') + "." 10 | network_ip = octets[3] 11 | 12 | Vagrant.configure("2") do |config| 13 | 14 | config.vm.boot_timeout = s["cluster"]["bootTimeout"] 15 | 16 | # Define the master node 17 | config.vm.define "master" do |master| 18 | master.vm.box = s["cluster"]["box"] 19 | master.vm.hostname = s["cluster"]["name"] + "-master" 20 | master.vm.network "private_network", type: "static", ip: network + network_ip 21 | master.vm.base_mac = nil 22 | master.vm.provider "virtualbox" do |vb| 23 | vb.cpus = s["cluster"]["master"]["cores"] 24 | vb.memory = s["cluster"]["master"]["memory"] 25 | vb.customize ["modifyvm", :id, "--name", "master"] 26 | 27 | # Set the group in virtualbox 28 | if s["cluster"]["name"] and s["cluster"]["name"] != "" 29 | vb.customize ["modifyvm", :id, "--groups", ("/" + s["cluster"]["name"])] 30 | end 31 | end 32 | 33 | # 34 | # Run the init provision script 35 | # 36 | master.vm.provision "shell", 37 | path: "provision/init.sh", 38 | # Arguments: DNS Servers, k8s version 39 | args: [s["cluster"]["networking"]["dns"].join(" "), s["cluster"]["kubernetes"]["version"]] 40 | 41 | # 42 | # Run the master provisioning script 43 | # 44 | master.vm.provision "shell", 45 | path: "provision/master.sh", 46 | # Arguments: Master IP, pod network, service network, calico version 47 | args: [s["cluster"]["networking"]["startingIP"], s["cluster"]["networking"]["pod_network"], s["cluster"]["networking"]["service_network"], s["cluster"]["kubernetes"]["calicoVersion"]] 48 | end 49 | 50 | # Define worker nodes 51 | s["cluster"]["worker"]["count"].times do |i| 52 | config.vm.define sprintf("worker-%02d", i + 1) do |worker| 53 | worker.vm.box = s["cluster"]["box"] 54 | worker.vm.hostname = s["cluster"]["name"] + "-" + sprintf("worker-%02d", i + 1) 55 | worker.vm.base_mac = nil 56 | worker.vm.network "private_network", type: "static", ip: "#{network}#{sprintf('%02d', i + network_ip.to_i + 1)}" 57 | worker.vm.provider "virtualbox" do |vb| 58 | vb.cpus = s["cluster"]["worker"]["cores"] 59 | vb.memory = s["cluster"]["worker"]["memory"] 60 | vb.customize ["modifyvm", :id, "--name", sprintf("worker-%02d", i + 1)] 61 | 62 | # Set the group in virtualbox 63 | if s["cluster"]["name"] and s["cluster"]["name"] != "" 64 | vb.customize ["modifyvm", :id, "--groups", ("/" + s["cluster"]["name"])] 65 | vb.customize ["modifyvm", :id, "--name", s["cluster"]["name"] + "-" + sprintf("worker-%02d", i + 1)] 66 | end 67 | end 68 | 69 | # 70 | # Run the init provision script 71 | # 72 | worker.vm.provision "shell", 73 | path: "provision/init.sh", 74 | # Arguments: DNS Servers, k8s version 75 | args: [s["cluster"]["networking"]["dns"].join(" "), s["cluster"]["kubernetes"]["version"]] 76 | 77 | # 78 | # Run the worker provisions script 79 | # 80 | worker.vm.provision "shell", 81 | path: "provision/worker.sh" 82 | # Arguments: ip address 83 | 84 | # Install metallb 85 | if i == (s["cluster"]["worker"]["count"] - 1) and s["cluster"]["software"]["metallb"]["install"] and s["cluster"]["software"]["metallb"]["install"] != "" 86 | worker.vm.provision "shell", path: "provision/metallb.sh", args: s["cluster"]["software"]["metallb"]["ipRange"] 87 | end 88 | 89 | #Install Longhorn 90 | if i == (s["cluster"]["worker"]["count"] - 1) and s["cluster"]["software"]["longhorn"]["install"] and s["cluster"]["software"]["longhorn"]["install"] != "" 91 | worker.vm.provision "shell", path: "provision/longhorn.sh", 92 | args: s["cluster"]["software"]["longhorn"]["frontend-lb"] 93 | end 94 | end 95 | end 96 | end -------------------------------------------------------------------------------- /cluster-settings.yaml: -------------------------------------------------------------------------------- 1 | # This file is for configuring the cluster 2 | # before provisioning the machines. 3 | 4 | cluster: 5 | # The name of the cluster will be the virtualbox group 6 | # prefix the machine name, the "node name" in Kubernetes, 7 | # and the hostname. 8 | name: local-development 9 | # Vagrant setting in seconds, increase on slower machines as provisioning takes longer 10 | bootTimeout: 600 11 | # Base Box, only tested with 22.04 12 | box: ubuntu/jammy64 13 | 14 | # Settings for the Kubernetes Master node 15 | master: 16 | cores: 2 # CPU Cores for the VM 17 | memory: 2048 # Memory in MB for the VM 18 | # Settings for the Kubernetes worker nodes 19 | worker: 20 | count: 1 # Total number of worker nodes provisioned 21 | cores: 2 # Number of cores PER NODE 22 | memory: 2048 # Amount of memory in MB PER NODE 23 | 24 | # Kubernetes cluster specific settings 25 | kubernetes: 26 | version: "latest" # Specify a kubernetes version (ex. 1.27.1) or use "latest" 27 | calicoVersion: "3.26.1" # Specify a calico version, 'latest' does not work here 28 | # Latest version can be found here: https://github.com/projectcalico/calico/releases 29 | 30 | 31 | networking: 32 | # The first IP address to be used, it will be assigned to the master node. 33 | # Each worker will be the address +1 34 | startingIP: 172.15.1.10 35 | # Specify specific nameservers 36 | dns: 37 | - 8.8.8.8 38 | - 1.1.1.1 39 | pod_network: 172.16.1.0/16 40 | service_network: 172.17.1.0/18 41 | 42 | software: 43 | # Metallb load balancer 44 | metallb: 45 | # Install metallb 46 | install: true 47 | # Address range for the LoadBalancer. Make sure that these 48 | # addresses are within the startingIP /24 network 49 | ipRange: 172.15.1.200-172.15.1.250 50 | 51 | # Longhorn specific settings 52 | longhorn: 53 | # Install Longhorn 54 | install: true 55 | # Expose the frontend via LoadBalancer (requires metallb), also this one is a string... 56 | frontend-lb: "true" -------------------------------------------------------------------------------- /provision/init.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | # This script initializes all of the provisioned machines 4 | # to make sure they are ready to be part of a Kubernetes 5 | # cluster. 6 | 7 | set -euo pipefail 8 | 9 | echo -e "\n################################" 10 | echo "# #" 11 | echo "# Initial Configuration #" 12 | echo "# #" 13 | echo "################################" 14 | echo -e "\nMachine: $(hostname -s)" 15 | 16 | # Handle Arguments 17 | 18 | DNS_SERVERS=$1 19 | K8S_VERSION=$2 20 | 21 | echo -e "\n\n---------------------------------" 22 | echo "Setting DNS Configuration" 23 | echo -e "---------------------------------\n" 24 | 25 | # MAke the resolved.conf.d dir if required 26 | # and add the DNS configuration into resolved 27 | if [ ! -d /etc/systemd/resolved.conf.d ]; then 28 | sudo mkdir /etc/systemd/resolved.conf.d/ 29 | fi 30 | cat </dev/null; echo "@reboot /sbin/swapoff -a") | crontab - || true 47 | 48 | 49 | echo -e "\n\n---------------------------------" 50 | echo "Update and Upgrade Packages" 51 | echo -e "---------------------------------\n" 52 | 53 | sudo apt update -y 54 | sudo apt upgrade -y 55 | 56 | 57 | echo -e "\n\n---------------------------------" 58 | echo "Installing Required Packages" 59 | echo -e "---------------------------------\n" 60 | 61 | apt install -y ca-certificates curl gnupg lsb-release jq 62 | 63 | 64 | echo -e "\n\n---------------------------------------" 65 | echo "Configuring Kernel modules and Paramaters" 66 | echo -e "---------------------------------------\n" 67 | 68 | # Add the overlay and br_netfilter modules on boot 69 | cat < /etc/containerd/config.toml 100 | sed -i 's/SystemdCgroup \= false/SystemdCgroup \= true/g' /etc/containerd/config.toml 101 | systemctl restart containerd 102 | systemctl enable containerd 103 | 104 | 105 | echo -e "\n\n---------------------------------" 106 | echo "Installing Kuberenetes Packages" 107 | echo -e "---------------------------------\n" 108 | 109 | sudo apt-get update -y 110 | if [ -z "$K8S_VERSION" ] || [[ "$K8S_VERSION" == "latest" ]]; then 111 | curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.28/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg 112 | echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.28/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list 113 | apt update 114 | apt-get install -y kubelet kubectl kubeadm 115 | else 116 | VER=$(echo $K8S_VERSION | cut -d'.' -f1,2) 117 | curl -fsSL https://pkgs.k8s.io/core:/stable:/v$VER/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg 118 | echo "deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v$VER/deb/ /" | sudo tee /etc/apt/sources.list.d/kubernetes.list 119 | apt update 120 | INSTALL_VERSION=$(apt list -a kubeadm | grep -E "kubeadm/unknown $K8S_VERSION" | head -n 1 | awk '{print $2}') 121 | # Install a specific version of kubernetes 122 | apt-get install -y kubelet="$INSTALL_VERSION" kubectl="$INSTALL_VERSION" kubeadm="$INSTALL_VERSION" 123 | fi 124 | 125 | echo -e "\n\n---------------------------------" 126 | echo "Installing Helm" 127 | echo -e "---------------------------------\n" 128 | 129 | curl https://raw.githubusercontent.com/helm/helm/main/scripts/get-helm-3 | bash 130 | 131 | echo -e "\n\n-------------------------------------------------" 132 | echo "Initialization for $(hostname -s) complete, moving on " 133 | echo -e "-------------------------------------------------\n" -------------------------------------------------------------------------------- /provision/longhorn.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | # This script installs longhorn into the cluster 4 | 5 | set -euo pipefail 6 | 7 | # Handle arguments 8 | if [ "$1" = "true" ]; then 9 | LB=LoadBalancer 10 | else 11 | LB=ClusterIP 12 | fi 13 | 14 | # This script installs longhorn into the cluster 15 | 16 | echo -e "\n################################" 17 | echo "# #" 18 | echo "# Installing Longhorn #" 19 | echo "# #" 20 | echo "################################" 21 | echo -e "\nMachine: $(hostname -s)" 22 | 23 | echo -e "\n\n---------------------------------" 24 | echo "Installing required packages" 25 | echo -e "---------------------------------\n" 26 | 27 | apt update 28 | apt install -y nfs-common open-iscsi 29 | systemctl enable --now iscsid 30 | 31 | echo -e "\n\n---------------------------------" 32 | echo "Preparing Helm repository" 33 | echo -e "---------------------------------\n" 34 | 35 | helm repo add longhorn https://charts.longhorn.io 36 | helm repo update 37 | 38 | echo -e "\n\n---------------------------------" 39 | echo "Installing Longhorn into the cluster" 40 | echo -e "---------------------------------\n" 41 | 42 | cp /vagrant/provision/yaml/longhorn-values.yaml /tmp/longhorn-values.yaml 43 | sed -i "s/<>/$LB/g" /tmp/longhorn-values.yaml 44 | 45 | helm install longhorn longhorn/longhorn --namespace longhorn-system --create-namespace --version 1.5.1 --values /tmp/longhorn-values.yaml 46 | 47 | sleep 30 48 | 49 | while true; do 50 | # Get the pod statuses 51 | pod_statuses=$(kubectl get pods -n "longhorn-system" | grep -Eo '[0-9]/[0-9]' || true) 52 | 53 | # Check if any pod has status 0/1 54 | if [[ $pod_statuses == *'0/1'* ]]; then 55 | echo "Waiting for Longhorn to come online..." 56 | sleep 10 # Adjust the sleep duration as needed 57 | else 58 | break 59 | fi 60 | done 61 | 62 | kubectl delete service longhorn-frontend -n longhorn-system 63 | 64 | 65 | 66 | 67 | echo -e "\n\n---------------------------------" 68 | echo "Longhorn installed, moving on" 69 | echo -e "---------------------------------\n" -------------------------------------------------------------------------------- /provision/master.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | # This script configures the master node 4 | # and initializes the Kubernetes cluster 5 | 6 | echo -e "\n################################" 7 | echo "# #" 8 | echo "# Creating Master Node #" 9 | echo "# #" 10 | echo "################################" 11 | echo -e "\nMachine: $(hostname -s)" 12 | set -euo pipefail 13 | 14 | MASTER_IP=$1 15 | POD_NETWORK=$2 16 | SERVICE_NETWORK=$3 17 | CALICO_VERSION=$4 18 | 19 | mkdir -p /vagrant/generated 20 | 21 | echo -e "\n\n---------------------------------" 22 | echo "Initializing the Kubernetes Cluster" 23 | echo -e "---------------------------------\n" 24 | kubeadm init --apiserver-advertise-address=$MASTER_IP --apiserver-cert-extra-sans=$MASTER_IP --pod-network-cidr=$POD_NETWORK --service-cidr=$SERVICE_NETWORK --node-name "$(hostname -s)" 25 | 26 | echo -e "\n\n---------------------------------" 27 | echo "Set up kubectl configuration" 28 | echo -e "---------------------------------\n" 29 | 30 | # Create config for vagrant user 31 | mkdir -p /home/vagrant/.kube 32 | cp -i /etc/kubernetes/admin.conf /home/vagrant/.kube/config 33 | chown vagrant:vagrant /home/vagrant/.kube/config 34 | chmod 600 /home/vagrant/.kube/config 35 | 36 | # Create config for root user 37 | mkdir -p $HOME/.kube 38 | cp /etc/kubernetes/admin.conf $HOME/.kube/config 39 | chown $(id -u):$(id -g) $HOME/.kube/config 40 | chmod 600 $HOME/.kube/config 41 | 42 | # Copy a copy of the config into the /vagrant/generated dir 43 | # for the future use by the user 44 | cp /etc/kubernetes/admin.conf /vagrant/generated/config 45 | 46 | echo -e "\n\n---------------------------------" 47 | echo "Setting correct INTERNAL IP" 48 | echo -e "---------------------------------\n" 49 | 50 | sed -i "s/\(\"\)$/ --node-ip=$(ip -o -4 address show dev enp0s8 | awk '{print $4}' | cut -d/ -f1)\"/" /var/lib/kubelet/kubeadm-flags.env 51 | 52 | systemctl daemon-reload 53 | systemctl restart kubelet 54 | 55 | sleep 5 56 | 57 | echo -e "\n\n---------------------------------" 58 | echo "Installing Calico into the cluster" 59 | echo -e "---------------------------------\n" 60 | kubectl create -f https://raw.githubusercontent.com/projectcalico/calico/v${CALICO_VERSION}/manifests/calico.yaml 61 | 62 | echo -e "\n\n---------------------------------------" 63 | echo "Generating the join script for workers" 64 | echo -e "---------------------------------------\n" 65 | kubeadm token create --print-join-command > /vagrant/generated/join.sh 66 | 67 | echo -e "\n\n-------------------------------------------------" 68 | echo "Master node $(hostname -s) configured, moving on " 69 | echo -e "-------------------------------------------------\n" -------------------------------------------------------------------------------- /provision/metallb.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | # This script installs metallb into the cluster 4 | 5 | set -euo pipefail 6 | 7 | printf "\nCreating metallb namespace\n" 8 | sudo -i -u vagrant kubectl create namespace metallb-system 9 | 10 | echo "Applying metallb-native manifest from github" 11 | sudo -i -u vagrant kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.13.11/config/manifests/metallb-native.yaml 12 | printf "\nManifest installed, installing metallb configuration\n\n" 13 | # Maximum number of retries 14 | max_retries=10 15 | 16 | # Current retry count 17 | retry_count=0 18 | 19 | cp /vagrant/provision/yaml/metallb.yaml /tmp/metallb.yaml 20 | sed -i "s/<>/$1/g" /tmp/metallb.yaml 21 | 22 | sleep 30 23 | 24 | while [ $retry_count -lt $max_retries ]; do 25 | # Run the command 26 | if sudo -i -u vagrant kubectl apply -f /tmp/metallb.yaml 27 | then 28 | printf "\nMETALLB INSTALLED\n\n" 29 | break 30 | else 31 | # Command failed, increment retry count and wait before retrying 32 | retry_count=$((retry_count + 1)) 33 | echo "Waiting for metallb to come online..." 34 | sleep 30 # Adjust the sleep duration as needed 35 | fi 36 | done 37 | 38 | # Check if the maximum number of retries was reached 39 | if [ $retry_count -eq $max_retries ]; then 40 | echo "ERROR: METALLB INSTALLATION FAILED" 41 | fi 42 | 43 | 44 | -------------------------------------------------------------------------------- /provision/worker.sh: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | # This script initializes each of the worker 4 | # nodes and joins them to the cluster. 5 | 6 | echo -e "\n################################" 7 | echo "# #" 8 | echo "# Creating Worker Node #" 9 | echo "# #" 10 | echo "################################" 11 | echo -e "\nMachine: $(hostname -s)" 12 | set -euo pipefail 13 | 14 | # bash /vagrant/generated/join.sh 15 | 16 | echo -e "\n\n---------------------------------" 17 | echo "Joining $(hostname -s) to the Kubernetes cluster" 18 | echo -e "---------------------------------\n" 19 | eval "$(> 76 | nodePort: null 77 | manager: 78 | type: ClusterIP 79 | nodePort: "" 80 | loadBalancerIP: "" 81 | loadBalancerSourceRanges: "" 82 | 83 | persistence: 84 | defaultClass: true 85 | defaultFsType: ext4 86 | defaultMkfsParams: "" 87 | defaultClassReplicaCount: 3 88 | defaultDataLocality: disabled # best-effort otherwise 89 | reclaimPolicy: Delete 90 | migratable: false 91 | recurringJobSelector: 92 | enable: false 93 | jobList: [] 94 | backingImage: 95 | enable: false 96 | name: ~ 97 | dataSourceType: ~ 98 | dataSourceParameters: ~ 99 | expectedChecksum: ~ 100 | defaultNodeSelector: 101 | enable: false # disable by default 102 | selector: "" 103 | removeSnapshotsDuringFilesystemTrim: ignored # "enabled" or "disabled" otherwise 104 | 105 | csi: 106 | kubeletRootDir: ~ 107 | attacherReplicaCount: ~ 108 | provisionerReplicaCount: ~ 109 | resizerReplicaCount: ~ 110 | snapshotterReplicaCount: ~ 111 | 112 | defaultSettings: 113 | backupTarget: ~ 114 | backupTargetCredentialSecret: ~ 115 | allowRecurringJobWhileVolumeDetached: ~ 116 | createDefaultDiskLabeledNodes: ~ 117 | defaultDataPath: ~ 118 | defaultDataLocality: ~ 119 | replicaSoftAntiAffinity: ~ 120 | replicaAutoBalance: ~ 121 | storageOverProvisioningPercentage: ~ 122 | storageMinimalAvailablePercentage: ~ 123 | upgradeChecker: ~ 124 | defaultReplicaCount: ~ 125 | defaultLonghornStaticStorageClass: ~ 126 | backupstorePollInterval: ~ 127 | failedBackupTTL: ~ 128 | restoreVolumeRecurringJobs: ~ 129 | recurringSuccessfulJobsHistoryLimit: ~ 130 | recurringFailedJobsHistoryLimit: ~ 131 | supportBundleFailedHistoryLimit: ~ 132 | taintToleration: ~ 133 | systemManagedComponentsNodeSelector: ~ 134 | priorityClass: ~ 135 | autoSalvage: ~ 136 | autoDeletePodWhenVolumeDetachedUnexpectedly: ~ 137 | disableSchedulingOnCordonedNode: ~ 138 | replicaZoneSoftAntiAffinity: ~ 139 | nodeDownPodDeletionPolicy: ~ 140 | nodeDrainPolicy: ~ 141 | replicaReplenishmentWaitInterval: ~ 142 | concurrentReplicaRebuildPerNodeLimit: ~ 143 | concurrentVolumeBackupRestorePerNodeLimit: ~ 144 | disableRevisionCounter: ~ 145 | systemManagedPodsImagePullPolicy: ~ 146 | allowVolumeCreationWithDegradedAvailability: ~ 147 | autoCleanupSystemGeneratedSnapshot: ~ 148 | concurrentAutomaticEngineUpgradePerNodeLimit: ~ 149 | backingImageCleanupWaitInterval: ~ 150 | backingImageRecoveryWaitInterval: ~ 151 | guaranteedEngineManagerCPU: ~ 152 | guaranteedReplicaManagerCPU: ~ 153 | kubernetesClusterAutoscalerEnabled: ~ 154 | orphanAutoDeletion: ~ 155 | storageNetwork: ~ 156 | deletingConfirmationFlag: ~ 157 | engineReplicaTimeout: ~ 158 | snapshotDataIntegrity: ~ 159 | snapshotDataIntegrityImmediateCheckAfterSnapshotCreation: ~ 160 | snapshotDataIntegrityCronjob: ~ 161 | removeSnapshotsDuringFilesystemTrim: ~ 162 | fastReplicaRebuildEnabled: ~ 163 | replicaFileSyncHttpClientTimeout: ~ 164 | logLevel: ~ 165 | backupCompressionMethod: ~ 166 | backupConcurrentLimit: ~ 167 | restoreConcurrentLimit: ~ 168 | v2DataEngine: ~ 169 | offlineReplicaRebuilding: ~ 170 | privateRegistry: 171 | createSecret: ~ 172 | registryUrl: ~ 173 | registryUser: ~ 174 | registryPasswd: ~ 175 | registrySecret: ~ 176 | 177 | longhornManager: 178 | log: 179 | ## Allowed values are `plain` or `json`. 180 | format: plain 181 | priorityClass: ~ 182 | tolerations: [] 183 | ## If you want to set tolerations for Longhorn Manager DaemonSet, delete the `[]` in the line above 184 | ## and uncomment this example block 185 | # - key: "key" 186 | # operator: "Equal" 187 | # value: "value" 188 | # effect: "NoSchedule" 189 | nodeSelector: {} 190 | ## If you want to set node selector for Longhorn Manager DaemonSet, delete the `{}` in the line above 191 | ## and uncomment this example block 192 | # label-key1: "label-value1" 193 | # label-key2: "label-value2" 194 | serviceAnnotations: {} 195 | ## If you want to set annotations for the Longhorn Manager service, delete the `{}` in the line above 196 | ## and uncomment this example block 197 | # annotation-key1: "annotation-value1" 198 | # annotation-key2: "annotation-value2" 199 | 200 | longhornDriver: 201 | priorityClass: ~ 202 | tolerations: [] 203 | ## If you want to set tolerations for Longhorn Driver Deployer Deployment, delete the `[]` in the line above 204 | ## and uncomment this example block 205 | # - key: "key" 206 | # operator: "Equal" 207 | # value: "value" 208 | # effect: "NoSchedule" 209 | nodeSelector: {} 210 | ## If you want to set node selector for Longhorn Driver Deployer Deployment, delete the `{}` in the line above 211 | ## and uncomment this example block 212 | # label-key1: "label-value1" 213 | # label-key2: "label-value2" 214 | 215 | longhornUI: 216 | replicas: 2 217 | priorityClass: ~ 218 | tolerations: [] 219 | ## If you want to set tolerations for Longhorn UI Deployment, delete the `[]` in the line above 220 | ## and uncomment this example block 221 | # - key: "key" 222 | # operator: "Equal" 223 | # value: "value" 224 | # effect: "NoSchedule" 225 | nodeSelector: {} 226 | ## If you want to set node selector for Longhorn UI Deployment, delete the `{}` in the line above 227 | ## and uncomment this example block 228 | # label-key1: "label-value1" 229 | # label-key2: "label-value2" 230 | 231 | ingress: 232 | ## Set to true to enable ingress record generation 233 | enabled: false 234 | 235 | ## Add ingressClassName to the Ingress 236 | ## Can replace the kubernetes.io/ingress.class annotation on v1.18+ 237 | ingressClassName: ~ 238 | 239 | host: sslip.io 240 | 241 | ## Set this to true in order to enable TLS on the ingress record 242 | tls: false 243 | 244 | ## Enable this in order to enable that the backend service will be connected at port 443 245 | secureBackends: false 246 | 247 | ## If TLS is set to true, you must declare what secret will store the key/certificate for TLS 248 | tlsSecret: longhorn.local-tls 249 | 250 | ## If ingress is enabled you can set the default ingress path 251 | ## then you can access the UI by using the following full path {{host}}+{{path}} 252 | path: / 253 | 254 | ## Ingress annotations done as key:value pairs 255 | ## If you're using kube-lego, you will want to add: 256 | ## kubernetes.io/tls-acme: true 257 | ## 258 | ## For a full list of possible ingress annotations, please see 259 | ## ref: https://github.com/kubernetes/ingress-nginx/blob/master/docs/annotations.md 260 | ## 261 | ## If tls is set to true, annotation ingress.kubernetes.io/secure-backends: "true" will automatically be set 262 | annotations: 263 | # kubernetes.io/ingress.class: nginx 264 | # kubernetes.io/tls-acme: true 265 | 266 | secrets: 267 | ## If you're providing your own certificates, please use this to add the certificates as secrets 268 | ## key and certificate should start with -----BEGIN CERTIFICATE----- or 269 | ## -----BEGIN RSA PRIVATE KEY----- 270 | ## 271 | ## name should line up with a tlsSecret set further up 272 | ## If you're using kube-lego, this is unneeded, as it will create the secret for you if it is not set 273 | ## 274 | ## It is also possible to create and manage the certificates outside of this helm chart 275 | ## Please see README.md for more information 276 | # - name: longhorn.local-tls 277 | # key: 278 | # certificate: 279 | 280 | # For Kubernetes < v1.25, if your cluster enables Pod Security Policy admission controller, 281 | # set this to `true` to ship longhorn-psp which allow privileged Longhorn pods to start 282 | enablePSP: false 283 | 284 | ## Specify override namespace, specifically this is useful for using longhorn as sub-chart 285 | ## and its release namespace is not the `longhorn-system` 286 | namespaceOverride: "" 287 | 288 | # Annotations to add to the Longhorn Manager DaemonSet Pods. Optional. 289 | annotations: {} 290 | 291 | serviceAccount: 292 | # Annotations to add to the service account 293 | annotations: {} 294 | 295 | -------------------------------------------------------------------------------- /provision/yaml/metallb.yaml: -------------------------------------------------------------------------------- 1 | apiVersion: metallb.io/v1beta1 2 | kind: IPAddressPool 3 | metadata: 4 | name: example 5 | namespace: metallb-system 6 | spec: 7 | addresses: 8 | - <> 9 | --- 10 | apiVersion: metallb.io/v1beta1 11 | kind: L2Advertisement 12 | metadata: 13 | name: empty 14 | namespace: metallb-system --------------------------------------------------------------------------------