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updated 08-bootstrapping-kubernetes-controllers

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Xander Grzywinski
2019-05-24 10:24:53 -07:00
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docs/03-compute-resources.md
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@@ -144,25 +144,78 @@ az network public-ip show --resource-group kubernetes-the-hard-way --name kubern
}
```
## The Kubernetes Frontend Load Balancer
In this section you will provision an external load balancer to front the Kubernetes API Servers. The `kubernetes-the-hard-way-ip` static IP address will be attached to the resulting load balancer.
> The compute instances created in this tutorial will not have permission to complete this section. Run the following commands from the same machine used to create the compute instances.
### Provision a Network Load Balancer
Create the external load balancer network resources:
```
{
KUBERNETES_PUBLIC_ADDRESS=$(az network public-ip show -g kubernetes-the-hard-way -n kubernetes-the-hard-way-ip --output tsv | cut -f6)
az network lb create \
--name kubernetes-the-hard-way-lb \
--resource-group kubernetes-the-hard-way \
--backend-pool-name kubernetes-the-hard-way-lb-pool \
--public-ip-address kubernetes-the-hard-way-ip \
--vent-name kubernetes-the-hard-way-vnet \
--subnet kubernetes-the-hard-way-subnet \
az network lb probe create \
--lb-name kubernetes-the-hard-way-lb \
--resource-group kubernetes-the-hard-way \
--name kubernetes-the-hard-way-lb-probe \
--port 80 \
--protocol tcp
az network lb rule create \
--resource-group kubernetes-the-hard-way \
--lb-name kubernetes-the-hard-way-lb \
--name kubernetes-the-hard-way-lb-rule \
--protocol tcp \
--frontend-port 6443 \
--backend-port 6443 \
--frontend-ip-name kubernetes-the-hard-way-ip \
--backend-pool-name kubernetes-the-hard-way-lb-pool \
--probe-name kubernetes-the-hard-way-lb-probe
}
```
## Compute Instances
The compute instances in this lab will be provisioned using [Ubuntu Server](https://www.ubuntu.com/server) 18.04, which has good support for the [containerd container runtime](https://github.com/containerd/containerd). Each compute instance will be provisioned with a fixed private IP address to simplify the Kubernetes bootstrapping process.
### Kubernetes Controllers
Create three compute instances which will host the Kubernetes control plane:
Create three network interfaces and three compute instances which will host the Kubernetes control plane:
```
for i in 0 1 2; do
az network nic create \
--resource-group kubernetes-the-hard-way \
--name controller-${i}-nic
--vnet-name kubernetes-the-hard-way-vnet \
--subnet kubernetes-the-hard-way-subnet \
--network-security-group kubernetes-the-hard-way-nsg \
--private-ip-address 10.240.0.1${i} \
--lb-name kubernetes-the-hard-way-lb \
--lb-address-pools kubernetes-the-hard-way-lb-pool \
--ip-forwarding true
done
```
```
for i in 0 1 2; do
az vm create \
--name controller-${i} \
--resource-group kubernetes-the-hard-way
--no-wait \
--vent-name kubernetes-the-hard-way-vnet
--subnet kubernetes-the-hard-way-subnet
--nsg kubernetes-the-hard-way-nsg
--private-ip-address 10.240.0.1${i}
--public-ip-address-allocation Static
--nics controller-${i}-nic
--image Canonical:UbuntuServer:18.04-LTS:latest
--admin-username azureuser
--generate-ssh-keys
@@ -179,17 +232,27 @@ Each worker instance requires a pod subnet allocation from the Kubernetes cluste
Create three compute instances which will host the Kubernetes worker nodes:
```
for i in 0 1 2; do
az network nic create \
--resource-group kubernetes-the-hard-way \
--name worker-${i}-nic
--vnet-name kubernetes-the-hard-way-vnet \
--subnet kubernetes-the-hard-way-subnet \
--network-security-group kubernetes-the-hard-way-nsg \
--private-ip-address 10.240.0.2${i} \
--lb-name kubernetes-the-hard-way-lb \
--lb-address-pools kubernetes-the-hard-way-lb-pool \
--ip-forwarding true
done
```
```
for i in 0 1 2; do
az vm create \
--name worker-${i} \
--resource-group kubernetes-the-hard-way
--no-wait \
--vent-name kubernetes-the-hard-way-vnet
--subnet kubernetes-the-hard-way-subnet
--nsg kubernetes-the-hard-way-nsg
--private-ip-address 10.240.0.2${i}
--public-ip-address-allocation Static
--nics worker-${i}-nic
--image Canonical:UbuntuServer:18.04-LTS:latest
--admin-username azureuser
--generate-ssh-keys