May 2018
Intermediate to advanced
554 pages
13h 51m
English
Content preview from Kubernetes Cookbook - Second Edition
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Updating masters
Updating masters is the same as updating nodes. Note that masters in the same availability zone are in one instance group. This means that you can't add additional subnets into the master instance group. In the following example, we'll resize the master count from 1 to 2.
In this recipe, we only make the master count 1. In the real world, the recommended way is to deploy masters to at least two availability zones and have three masters per zone (one kops instance group). You can achieve that via the --master-count and --master-zones parameters when launching the cluster.
Now take a look at the following command:
# kops edit ig master-us-east-1aapiVersion: kops/v1alpha2kind: InstanceGroupmetadata: creationTimestamp: 2018-04-14T19:06:47Z ...