TCP OpenPaaS

TCP OpenPaaS Infra

Prerequisites

• ProLinux 8.6
• Configure /etc/hosts for master and worker nodes

Setup master node

Install Kubernetes, Containerd, Calico and TCP OpenPaaS

1. Download installer file in our repository

   git clone https://github.com/tmax-cloud//tcp_openpaas_infra_installer.git
   

2. Modify k8s.config to suit your environment
   • cniPluginVersion : cni plugin version
   • k8sVersion : kubeadm, kubelet, kubectl version
   • apiServer : The IP address the API Server will advertise it's listening on.
     • ex : apiServer={Kubernetes master IP}
     • ex : apiServer=172.22.5.2
   • podSubnet : Pod IPs will be chosen from this range. This should fall within --cluster-cidr.
     • ex : podSubnet={POD_IP_POOL}/{CIDR}
     • ex : podSubnet=10.244.0.0/16
   • calicoVersion : calico network plugin version(OPTIONAL)
     • If nothing is specified, the default version(v3.27.0) is installed.
     • ex : calicoVersion=3.27.0
3. Execute installer script

   ./k8s_master_install.sh
   

4. Get the join command for worker node

   kubeadm token create --print-join-command
   

   You can get the result in this format:

   kubeadm join 192.168.122.50:6443 --token mnp5b8.u7tl2cruk73gh0zh     --discovery-token-ca-cert-hash sha256:662a697f67ecbb8b376898dcd5bf4df806249175ea4a90c2d3014be399c6c18a
   

5. If you create a single node Kubernetes cluster, you have to untaint the master node

   kubectl taint nodes --all node-role.kubernetes.io/master-
   

6. If the installation process fails, execute uninstaller script then installer script again

   ./k8s_uninstall.sh
   ./k8s_master_install.sh
   

Setup worker nodes

Install Kubernetes and Containerd

1. Download installer file in our repository

   git clone https://github.com/tmax-cloud//tcp_openpaas_infra_installer.git
   

2. Modify k8s.config to suit your environment
   • cniPluginVersion : cni plugin version
   • k8sVersion : kubeadm, kubelet, kubectl version
3. Execute installer script

   ./k8s_node_install.sh
   

4. Execute the join command

   kubeadm join 192.168.122.50:6443 --token mnp5b8.u7tl2cruk73gh0zh     --discovery-token-ca-cert-hash sha256:662a697f67ecbb8b376898dcd5bf4df806249175ea4a90c2d3014be399c6c18a
   

5. If the installation process fails, execute uninstaller script then installer script again

   ./k8s_uninstall.sh
   ./k8s_node_install.sh
   

TCP OpenPaaS NFS Storage

Prerequisites

• All nodes in the k8s cluster require the nfs-utils package to be installed

Setup all nodes

Install nfs packages

1. install nfs-utils packages

   sudo yum install -y nfs-utils
   

Setup master node

Install NFS-Server, NFS-Provisioning

1. Modify nfs_install.sh

   • NFS_PATH : NFS directory path
     • ex : NFS_PATH=/mnt/nfs-shared-dir
   • If no directory is specified, the default path is /mnt/nfs-shared-dir

2. Execute NFS installer script

   ./nfs_install.sh
   

3. Enter Master Node IP after Execute NFS installer script

   ./nfs_install.sh
   Enter Master IP: ex)172.21.7.5