148422597X Kubernetes Management Design Patterns [Vohra 2017-01-29] {E559F6BB}

Chapter 4 ■ Using Multiple Zones
Another setting that needs to be commented out is controllerIP. The controllerIP setting specifies
the controller in a Kubernetes subnet. With two or more subnets the controller is placed in the first subnet,
and controllerIP must be included in the instanceCIDR of the first subnet. If no instanceCIDRs in the
configured Subnets contain the controllerIP and controllerIP is not commented out, the error shown in
Figure 4-9 is generated.
Figure 4-9. Error message when no instanceCIDRs in the configured subnets contain the controllerIP
The subnets must be formatted as shown in Figure 4-10.
Figure 4-10. Listing the formatted subnets
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