├── .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
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576 | GNU General Public License, you may choose any version ever published
577 | by the Free Software Foundation.
578 |
579 | If the Program specifies that a proxy can decide which future
580 | versions of the GNU General Public License can be used, that proxy's
581 | public statement of acceptance of a version permanently authorizes you
582 | to choose that version for the Program.
583 |
584 | Later license versions may give you additional or different
585 | permissions. However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 |
589 | 15. Disclaimer of Warranty.
590 |
591 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 |
600 | 16. Limitation of Liability.
601 |
602 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 |
612 | 17. Interpretation of Sections 15 and 16.
613 |
614 | If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 |
621 | END OF TERMS AND CONDITIONS
622 |
623 | How to Apply These Terms to Your New Programs
624 |
625 | If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 |
629 | To do so, attach the following notices to the program. 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 | (back to top)
26 |
27 |
28 |
29 | ## Built With
30 |
31 | [](https://kubernetes.io/)
32 |
The whole point of the project is to spin up a Kubernetes cluster.
33 |
34 | [](https://www.vagrantup.com/)
35 |
Used to provision the virtual machines using [VirtualBox](https://www.virtualbox.org/)
36 |
37 | [](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 | (back to top)
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 | (back to top)
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 | (back to top)
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 | (back to top)
178 |
179 |
180 | ## License
181 |
182 | Distributed under the GPLv2 License. See `LICENSE.md` for more information.
183 |
184 | (back to top)
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 | (back to top)
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 | (back to top)
--------------------------------------------------------------------------------
/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:
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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"
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/provision/metallb.sh:
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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 |
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/provision/worker.sh:
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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 |
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/provision/yaml/metallb.yaml:
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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
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