amery
57251ce0af
Ring 3 corresponds to the pods of the kubernetes cluster of a region Signed-off-by: Alejandro Mery <amery@jpi.io>
19 lines
448 B
Go
19 lines
448 B
Go
package rings
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import "net/netip"
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// RingThreePrefix returns the subnet corresponding to
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// the pods of a cluster.
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//
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// Ring 3 is a `10.(region_id << 4).0.0/12` network
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func RingThreePrefix(region RegionID) (subnet netip.Prefix, err error) {
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switch {
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case !region.Valid():
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err = ErrOutOfRange(region, "region")
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default:
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addr := AddrFrom4(10, uint(region)<<4, 0, 0)
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subnet = netip.PrefixFrom(addr, RingThreeBits)
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}
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return subnet, err
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}
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