A Practical Guide to Kubernetes/

...

/

Preparing for the Cluster Setup: Availability Zones and SSH Keys

Preparing for the Cluster Setup: Availability Zones and SSH Keys

Learn to set up availability zones and create SSH keys.

We'll cover the following...

Setting up the availability zones

In this lesson, we will decide which availability zones we should use. So, let’s look at what’s available in the us-east-2 region:

Press + to interact
aws ec2 describe-availability-zones \
    --region $AWS_DEFAULT_REGION

The output is as follows:

Press + to interact
{
    "AvailabilityZones": [
        {
            "State": "available", 
            "RegionName": "us-east-2", 
            "Messages": [], 
            "ZoneID": "use2-az1",
            "ZoneName": "us-east-2a"
        }, 
        {
            "State": "available", 
            "RegionName": "us-east-2", 
            "Messages": [],
            "ZoneID": "use2-az2", 
            "ZoneName": "us-east-2b"
        }, 
        {
            "State": "available", 
            "RegionName": "us-east-2", 
            "Messages": [], 
            "ZoneID": "use2-az3",
            "ZoneName": "us-east-2c"
        }
    ]
}

As we can see, the region has three availability zones. We’ll store them in an environment variable.

Note: Windows users should use tr '\r\n' ', ' instead of tr '\n' ',' in the following command: ...