AlexZ005 · June 21, 2025 10:22 · Jun 21, 2025 · Aug 9, 2024
diff --git a/...4 on VirtualBox and Kubernetes for Agones → ...4 on VirtualBox and Kubernetes for Agones b/...4 on VirtualBox and Kubernetes for Agones → ...4 on VirtualBox and Kubernetes for Agones
@@ -2,8 +2,8 @@ Setting up a VirtualBox Machine and Preparing a Kubernetes Cluster
 
 Step 1: Download OVA Image
 
-Download the Ubuntu 20.04 Server Cloud image from:
-https://cloud-images.ubuntu.com/releases/focal/release/ubuntu-20.04-server-cloudimg-amd64.ova
+Download the Ubuntu 25.04 Server Cloud image from:
+https://cloud-images.ubuntu.com/releases/plucky/release/ubuntu-25.04-server-cloudimg-amd64.ova
 
 Step 2: Import to VirtualBox
 * File > Import Appliance
@@ -31,11 +31,10 @@ sudo apt install curl -y
 sudo apt-get install -y docker.io
 sudo apt-get install -y apt-transport-https ca-certificates curl gpg
 
-# Setting 1.27 version, update as after March 2024 Kubernetes package repositories (apt.kubernetes.io) were officially removed
-# https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/
+# Setting 1.33 version
 sudo mkdir -p -m 755 /etc/apt/keyrings
-curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.27/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
-echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.27/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
+curl -fsSL https://prod-cdn.packages.k8s.io/repositories/isv:/kubernetes:/core:/stable:/v1.33/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
+echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.33/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
 sudo apt-get update
 
 sudo apt-get install -y kubeadm kubelet kubectl
@@ -53,9 +52,13 @@ EOF
 Step 6: Execute master.sh
 Run ./master.sh to create the Kubernetes cluster.
 
+Step 7: Install Network CNI , for example Calico
+kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
+kubectl get nodes #the node should become ready
+
 #Notes:
-# The version will be picked automatically from the repo (as of writing: v1.27.16)
+# The version will be picked automatically from the repo (as of writing: v1.33.2)
 # Alternatively specific version could be set as following if present in repository:
-# sudo apt-get install -y kubeadm=1.27.6-00 kubelet=1.27.6-00 kubectl=1.27.6-00
-# kuber adm init will say remote version is much newer: v1.30.3; falling back to: stable-1.27
-# Alternatively: sudo kubeadm init --kubernetes-version 1.27.6 --pod-network-cidr 192.168.0.0/16
+# sudo apt-get install -y kubeadm=1.33.2-1.1 kubelet=1.33.2-1.1 kubectl=1.33.2-1.1
+# sudo kubeadm init --kubernetes-version 1.33.2 --pod-network-cidr 192.168.0.0/16
+# kubectl taint nodes --all node-role.kubernetes.io/control-plane-
diff --git a/Setting Ubuntu v20.04 on VirtualBox and Kubernetes for Agones b/Setting Ubuntu v20.04 on VirtualBox and Kubernetes for Agones
@@ -0,0 +1,61 @@
+Setting up a VirtualBox Machine and Preparing a Kubernetes Cluster
+
+Step 1: Download OVA Image
+
+Download the Ubuntu 20.04 Server Cloud image from:
+https://cloud-images.ubuntu.com/releases/focal/release/ubuntu-20.04-server-cloudimg-amd64.ova
+
+Step 2: Import to VirtualBox
+* File > Import Appliance
+* Set:
+CPU: 4
+RAM: 4096 GB
+* Increase disk space
+
+Step 3: Configure Networking and SSH
+Enter GRUB holding Shift, select advanced/recovery mode
+Change root password or add public key using the following command (use KeePass for Auto-Type):
+apt-get remove cloud-init -y && cd /etc/netplan && echo -e "network:\n  version: 2\n  renderer: networkd\n  ethernets:\n    enp0s3:\n       dhcp4: true" > 01-netcfg.yaml && ssh-keygen -A && mkdir ~/.ssh && echo "<ssh-key>" > ~/.ssh/authorized_keys && echo "IP Address: \4" >> /etc/issue && reboot
+
+Step 4: Adjust Disk Size
+Run fdisk /dev/sda and type the following commands, hitting Enter after each comma:
+d,1,n,1,p,enter,enter,N,w
+resize2fs /dev/sda1
+
+Step 5: Create master.sh Script
+Run the following command to create master.sh:
+cat << EOF > master.sh
+swapoff -a
+sudo apt-get update && sudo apt-get upgrade -y
+sudo apt install curl -y
+sudo apt-get install -y docker.io
+sudo apt-get install -y apt-transport-https ca-certificates curl gpg
+
+# Setting 1.27 version, update as after March 2024 Kubernetes package repositories (apt.kubernetes.io) were officially removed
+# https://kubernetes.io/docs/setup/production-environment/tools/kubeadm/install-kubeadm/
+sudo mkdir -p -m 755 /etc/apt/keyrings
+curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.27/deb/Release.key | sudo gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
+echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.27/deb/ /' | sudo tee /etc/apt/sources.list.d/kubernetes.list
+sudo apt-get update
+
+sudo apt-get install -y kubeadm kubelet kubectl
+sudo apt-mark hold kubelet kubeadm kubectl
+
+sudo kubeadm init --pod-network-cidr 192.168.0.0/16
+mkdir -p $HOME/.kube
+sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
+sudo chown $(id -u):$(id -g) $HOME/.kube/config
+# or under root
+# export KUBECONFIG=/etc/kubernetes/admin.conf
+# kubeadm token create --print-join-command
+EOF
+
+Step 6: Execute master.sh
+Run ./master.sh to create the Kubernetes cluster.
+
+#Notes:
+# The version will be picked automatically from the repo (as of writing: v1.27.16)
+# Alternatively specific version could be set as following if present in repository:
+# sudo apt-get install -y kubeadm=1.27.6-00 kubelet=1.27.6-00 kubectl=1.27.6-00
+# kuber adm init will say remote version is much newer: v1.30.3; falling back to: stable-1.27
+# Alternatively: sudo kubeadm init --kubernetes-version 1.27.6 --pod-network-cidr 192.168.0.0/16