Changes between Initial Version and Version 1 of Tutorials/m0SDN/k8s

Timestamp:

Jul 12, 2023, 6:59:17 PM (17 months ago)

Author:

jlaxman

Comment:

—

Tutorials/m0SDN/k8s

@@ +1 @@
+Kubernetes Wiki Doc:
+[[TOC(Documentation/f*, depth=3)]]
+
+== Tutorial: Kubernetes Setup==
+Requirements:
+
+1. [https://www.orbit-lab.org/wiki/Documentation/CGettingStarted Setup/Practice] of Orbit Nodes.
+
+2. Any available Orbit Sandbox Node
+
+3. Ubuntu 20.04.5 LTS or Ubuntu 22.04.2 LTS (Choice is up to you)
+
+----
+
+In this tutorial, we will be using one of the sb1 nodes for setting up Kubernetes. However, sb(1-10) should also be capable for Kubernetes setup. 
+
+Make sure you have Ubuntu 20.04.5 (**baseline20.04.ndz**) or 22.04.2 (**ubuntu2204-beta.ndz**) LTS. To get the Ubuntu Version, follow these steps after ssh'ing into your console. Substitute for the image and node you want.
+
+The below steps illustrate loading Ubuntu 20.04.5 LTS for node1-2 of sb1. For the sb1 console,
+
+{{{#!shell 
+username@console:~$ omf tell -t node1-2 -a offh 
+}}}
+
+{{{#!shell
+username@console:~$ omf load -t node1-2 -i baseline20.04.ndz
+}}}
+
+{{{#!shell
+username@console:~$ omf tell -t node1-2 -a on
+}}}
+
+To verify if you have loaded your Ubuntu version properly, use this command after ssh into the node1-2 
+
+{{{#!shell
+root@node1-2:~# lsb_release -a
+}}} 
+
+This will list the current version of Ubuntu loaded.
+
+Example Image:
+
+[[Image(lsb_release.jpg)]]
+
+=== Set up a Kubernetes Cluster ===
+After loading your version of Ubuntu, you can follow the below steps to install Kubernetes
+
+1. Update and Upgrade Packages:
+{{{#!shell 
+root@node1-2:~# sudo apt-get update && sudo apt-get upgrade
+}}}
+
+2. Install Docker:
+{{{#!shell
+root@node1-2:~# sudo apt install docker.io
+}}}
+
+3. Configure Docker to use systemd for the management of the container’s cgroups:
+{{{#!shell
+root@node1-2:~# cat <<EOF | sudo tee /etc/docker/daemon.json
+{
+  "exec-opts": ["native.cgroupdriver=systemd"],
+  "log-driver": "json-file",
+  "log-opts": {
+    "max-size": "100m"
+  },
+  "storage-driver": "overlay2"
+}
+EOF
+}}}
+
+4. Enable Docker:
+{{{#!shell
+root@node1-2:~# sudo systemctl enable docker
+}}}
+
+5. Reload the systemd manager configuration:
+{{{#!shell
+root@node1-2:~# sudo systemctl daemon-reload
+}}}
+
+6. Restart Docker:
+{{{#!shell
+root@node1-2:~# sudo systemctl restart docker
+}}}
+
+7. Update and Upgrade Packages again:
+{{{#!shell 
+root@node1-2:~# apt update && apt upgrade -y
+}}}
+
+8. Add Kubernetes to the repository list:
+{{{#!shell
+root@node1-2:~# curl -sSL https://packages.cloud.google.com/apt/doc/apt-key.gpg | gpg --dearmor | sudo tee /usr/share/keyrings/kubernetes-archive-keyring.gpg >/dev/null
+}}}
+{{{#!shell
+root@node1-2:~# echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
+}}}
+
+9. Install Kubernetes:
+{{{#!shell
+root@node1-2:~# sudo apt-get update
+}}}
+{{{#!shell
+root@node1-2:~# sudo apt-get install -y kubelet kubeadm kubectl
+}}}
+{{{#!shell
+root@node1-2:~# sudo apt-mark hold kubelet kubeadm kubectl
+}}}
+
+10. Initialize the Kubernetes Cluster:
+{{{#!shell
+root@node1-2:~# kubeadm init --pod-network-cidr=10.19.0.0/16
+}}}
+
+You should see an output which includes a `kubeadm join` command, save this command for use on the worker nodes.
+
+11. Set KUBECONFIG environment variable:
+{{{#!shell
+root@node1-2:~# export KUBECONFIG=/etc/kubernetes/admin.conf
+}}}
+
+12. Apply Flannel network overlay:
+{{{#!shell
+root@node1-2:~# kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml
+}}}
+
+=== Joining Worker Nodes to the Cluster ===
+To join worker nodes to the Kubernetes cluster, run the `kubeadm join` command that was outputted by the `kubeadm init` command.
+
+Example:
+{{{#!shell
+root@node1-2:~# kubeadm join 10.19.1.5:6443 --token o1cttx.z9al8w8ljqcmqb4y --discovery-token-ca-cert-hash sha256:6ecd74d7eca0299b80499cf2e2e1c87c4079c3d234282be5822761880998853e
+}}}
+
+= Hope You Figure Out the Purpose of Kubernetes =