Add flag to support ClusterIP exposed CoreDNS #1788
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Some environments (Calico bare-metal, etc) may allow direct client reachability to the Service CIDR, bypassing the need to assign and use LoadBalancerIPs. A new config flag and environment variable allows selection/return of the ClusterIPs in the assistant rather than externally assigned LoadBalancer IPs. Signed-off-by: Brandon Ewing <brandon.ewing@imc.com>
bewing
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donovanmuller,
k0da,
kuritka,
ytsarev,
jkremser and
abaguas
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abaguas
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Dec 14, 2024
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We can simplify the configuration to the users by not adding a new flag. Setting the CoreDNSExposed flag to true is enough.
A service only has one type so we dynamically check if the service is of type LoadBalancer or ClusterIP. Then we can extend logic of the CoreDNSExposedIPs function to fetch the IP addresses depending on the type.
Instead of using a config flag to select ClusterIPs for the CoreDNS service, inspect the service type to determine which set of IPs to return. Signed-off-by: Brandon Ewing <brandon.ewing@imc.com>
abaguas
approved these changes
Dec 19, 2024
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Some environments (Calico bare-metal, etc) may allow direct client reachability to the Service CIDR, bypassing the need to assign and use LoadBalancerIPs. A new config flag and environment variable allows selection/return of the ClusterIPs in the assistant rather than externally assigned LoadBalancer IPs.