6.4 KiB
6.4 KiB
Cloud Infrastructure Provisioning - Google Cloud Platform
This lab will walk you through provisioning the compute instances required for running a H/A Kubernetes cluster. A total of 9 virtual machines will be created.
After completing this guide you should have the following compute instances:
gcloud compute instances list
NAME ZONE MACHINE_TYPE PREEMPTIBLE INTERNAL_IP EXTERNAL_IP STATUS
controller0 us-central1-f n1-standard-1 10.240.0.20 XXX.XXX.XXX.XXX RUNNING
controller1 us-central1-f n1-standard-1 10.240.0.21 XXX.XXX.XXX.XXX RUNNING
controller2 us-central1-f n1-standard-1 10.240.0.22 XXX.XXX.XXX.XXX RUNNING
etcd0 us-central1-f n1-standard-1 10.240.0.10 XXX.XXX.XXX.XXX RUNNING
etcd1 us-central1-f n1-standard-1 10.240.0.11 XXX.XXX.XXX.XXX RUNNING
etcd2 us-central1-f n1-standard-1 10.240.0.12 XXX.XXX.XXX.XXX RUNNING
worker0 us-central1-f n1-standard-1 10.240.0.30 XXX.XXX.XXX.XXX RUNNING
worker1 us-central1-f n1-standard-1 10.240.0.31 XXX.XXX.XXX.XXX RUNNING
worker2 us-central1-f n1-standard-1 10.240.0.32 XXX.XXX.XXX.XXX RUNNING
All machines will be provisioned with fixed private IP addresses to simplify the bootstrap process.
To make our Kubernetes control plane remotely accessible, a public IP address will be provisioned and assigned to a Load Balancer that will sit in front of the 3 Kubernetes controllers.
Create a Custom Network
gcloud compute networks create kubernetes --mode custom
NAME MODE IPV4_RANGE GATEWAY_IPV4
kubernetes custom
Create a subnet for the Kubernetes cluster:
gcloud compute networks subnets create kubernetes \
--network kubernetes \
--range 10.240.0.0/24 \
--region us-central1
NAME REGION NETWORK RANGE
kubernetes us-central1 kubernetes 10.240.0.0/24
Firewall Rules
gcloud compute firewall-rules create kubernetes-allow-icmp \
--allow icmp \
--network kubernetes \
--source-ranges 0.0.0.0/0
gcloud compute firewall-rules create kubernetes-allow-internal \
--allow tcp:0-65535,udp:0-65535,icmp \
--network kubernetes \
--source-ranges 10.240.0.0/24
gcloud compute firewall-rules create kubernetes-allow-rdp \
--allow tcp:3389 \
--network kubernetes \
--source-ranges 0.0.0.0/0
gcloud compute firewall-rules create kubernetes-allow-ssh \
--allow tcp:22 \
--network kubernetes \
--source-ranges 0.0.0.0/0
gcloud compute firewall-rules create kubernetes-allow-healthz \
--allow tcp:8080 \
--network kubernetes \
--source-ranges 130.211.0.0/22
gcloud compute firewall-rules create kubernetes-allow-api-server \
--allow tcp:6443 \
--network kubernetes \
--source-ranges 0.0.0.0/0
gcloud compute firewall-rules list --filter "network=kubernetes"
NAME NETWORK SRC_RANGES RULES SRC_TAGS TARGET_TAGS
kubernetes-allow-api-server kubernetes 0.0.0.0/0 tcp:6443
kubernetes-allow-healthz kubernetes 130.211.0.0/22 tcp:8080
kubernetes-allow-icmp kubernetes 0.0.0.0/0 icmp
kubernetes-allow-internal kubernetes 10.240.0.0/24 tcp:0-65535,udp:0-65535,icmp
kubernetes-allow-rdp kubernetes 0.0.0.0/0 tcp:3389
kubernetes-allow-ssh kubernetes 0.0.0.0/0 tcp:22
Create the Kubernetes Public IP Address
Create a public IP address that will be used by remote clients to connect to the Kubernetes control plane:
gcloud compute addresses create kubernetes
gcloud compute addresses list kubernetes
NAME REGION ADDRESS STATUS
kubernetes us-central1 XXX.XXX.XXX.XXX RESERVED
Provision Virtual Machines
All the VMs in this lab will be provisioned using Ubuntu 16.04 mainly because it runs a newish Linux Kernel that has good support for Docker.
etcd
gcloud compute instances create etcd0 \
--boot-disk-size 200GB \
--can-ip-forward \
--image ubuntu-1604-xenial-v20160627 \
--image-project ubuntu-os-cloud \
--machine-type n1-standard-1 \
--private-network-ip 10.240.0.10 \
--subnet kubernetes
gcloud compute instances create etcd1 \
--boot-disk-size 200GB \
--can-ip-forward \
--image ubuntu-1604-xenial-v20160627 \
--image-project ubuntu-os-cloud \
--machine-type n1-standard-1 \
--private-network-ip 10.240.0.11 \
--subnet kubernetes
gcloud compute instances create etcd2 \
--boot-disk-size 200GB \
--can-ip-forward \
--image ubuntu-1604-xenial-v20160627 \
--image-project ubuntu-os-cloud \
--machine-type n1-standard-1 \
--private-network-ip 10.240.0.12 \
--subnet kubernetes
Kubernetes Controllers
gcloud compute instances create controller0 \
--boot-disk-size 200GB \
--can-ip-forward \
--image ubuntu-1604-xenial-v20160627 \
--image-project ubuntu-os-cloud \
--machine-type n1-standard-1 \
--private-network-ip 10.240.0.20 \
--subnet kubernetes
gcloud compute instances create controller1 \
--boot-disk-size 200GB \
--can-ip-forward \
--image ubuntu-1604-xenial-v20160627 \
--image-project ubuntu-os-cloud \
--machine-type n1-standard-1 \
--private-network-ip 10.240.0.21 \
--subnet kubernetes
gcloud compute instances create controller2 \
--boot-disk-size 200GB \
--can-ip-forward \
--image ubuntu-1604-xenial-v20160627 \
--image-project ubuntu-os-cloud \
--machine-type n1-standard-1 \
--private-network-ip 10.240.0.22 \
--subnet kubernetes
Kubernetes Workers
gcloud compute instances create worker0 \
--boot-disk-size 200GB \
--can-ip-forward \
--image ubuntu-1604-xenial-v20160627 \
--image-project ubuntu-os-cloud \
--machine-type n1-standard-1 \
--private-network-ip 10.240.0.30 \
--subnet kubernetes
gcloud compute instances create worker1 \
--boot-disk-size 200GB \
--can-ip-forward \
--image ubuntu-1604-xenial-v20160627 \
--image-project ubuntu-os-cloud \
--machine-type n1-standard-1 \
--private-network-ip 10.240.0.31 \
--subnet kubernetes
gcloud compute instances create worker2 \
--boot-disk-size 200GB \
--can-ip-forward \
--image ubuntu-1604-xenial-v20160627 \
--image-project ubuntu-os-cloud \
--machine-type n1-standard-1 \
--private-network-ip 10.240.0.32 \
--subnet kubernetes