| Name | IP address | Role |
|---|---|---|
| networker | 10.98.95.230 | DHCP and DNS server |
| media | 10.98.95.231 | NFS server |
| haproxy1 | 10.98.95.18 | Load Balancer for k8s API |
| k8s-controller1 | 10.98.95.11 | controller node |
| k8s-controller2 | 10.98.95.12 | controller node |
| k8s-controller3 | 10.98.95.13 | controller node |
| k8s-worker1 | 10.98.95.21 | worker node |
| k8s-worker2 | 10.98.95.22 | worker node |
| k8s-worker3 | 10.98.95.23 | worker node |
| Network / IP | Description |
|---|---|
| 10.98.95.0/24 | LAN (externally reachable) |
| 10.98.100.0/22 | k8s Pod network |
| 10.98.96.0/24 | k8s Service network |
| 10.98.95.18 | k8s API server (external IP - haproxy) |
| 10.98.96.1 | k8s API server (internal IP) |
| 10.98.96.10 | k8s DNS |
Setup that worked in my environment:
- Operating System: Ubuntu 18.04 LTS (VMs on top of VMware ESXi)
- Networking solution: Weave Net
- DNS Add-on - coredns
- Infrastructure Setup
- Installing the Client Tools
- Provisioning a CA and Generating TLS Certificates
- Kubernetes Configuration Files for Authentication
- Generating the Data Encryption Config and Key
- Bootstrapping the etcd Cluster
- Load Balancer
- Bootstrapping the Kubernetes Control Plane
- Bootstrapping the Kubernetes Worker Nodes
- Configuring kubectl for Remote Access
- Configure Kubernetes Networking
- Deploying the DNS Cluster Add-on
- Configuring storage for Persistent Volumes
- Testing and Playing with Kubernetes
- Verification and Troubleshooting
- Notes from Troubleshooting and Operations