* kubernetes: add multicluster support
Add multicluster support via Multi-Cluster Services API (MCS-API) via a
new option `multiclusterZones` in the kubernetes plugin.
When some multicluster zones are passed to the kubernetes plugin, it
will start watching the ServiceImport objects and its associated
EndpointSlices.
Signed-off-by: Arthur Outhenin-Chalandre <arthur@cri.epita.fr>
* kubernetes: implement xfr support for multicluster zones
Signed-off-by: Arthur Outhenin-Chalandre <arthur@cri.epita.fr>
---------
Signed-off-by: Arthur Outhenin-Chalandre <arthur@cri.epita.fr>
In kubernetes' audit logs you'll see:
"userAgent":"coredns/v0.0.0 (linux/amd64) kubernetes/$Format"
This change adds a userAgent to the requests made by CoreDNS against the kubernetes API:
"userAgent":"CoreDNS/v1.11.1 git_commit:ae2bbc29be1aaae0b3ded5d188968a6c97bb3144 (linux/amd64/go1.22)"
Signed-off-by: Manuel Rüger <manuel@rueg.eu>
* support v1 and v1beta1 endpointslice
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* update comments
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
When err=nil try to determine the version of the k8s cluster and disable
endpoint slices. Don't return from connecting to the cluster.
In the future we should just default to true, and delete all this code.
Signed-off-by: Miek Gieben <miek@miek.nl>
* initial commit
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* convert endpointslices to object.endpoints
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* add opt hard coded for now
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* check that server supports endpointslice
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* fix import grouping
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* dont use endpoint slice in 1.17 or 1.18
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* bump kind/k8s in circle ci to latest
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* drop k8s to latest supported by kind
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* use endpointslice name as endoint Name; index by Service name
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* use index key comparison in nsAddrs()
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* add Index to object.Endpoint fixtures; fix direct endpoint name compares
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* add slice dup check and test
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* todo
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* add ep-slice skew dup test for reverse
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* nsaddrs: de-dup ep-slice skew dups; add test
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* remove todo
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* address various feedback
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* consolidate endpoint/slice informer code
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* fix endpoint informer consolidation; use clearer func name
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* log info; use major/minor fields
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* fix nsAddr and unit test
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* add latency tracking for endpointslices
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* endpointslice latency unit test & fix
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* code shuffling
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* rename endpointslices in tests
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* remove de-dup from nsAddrs and test
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
* remove de-dup from findServices / test
Signed-off-by: Chris O'Haver <cohaver@infoblox.com>
The Kubernetes DNS specification schema version was
updated to 1.1.0 in order to support IPv6
Signed-off-by: Antonio Ojea <antonio.ojea.garcia@gmail.com>
* use all local IPs
* mult/bind ips
* gofmt + boundIPs fix
* fix no matching endpoint case
* don't duplicate NS records in answer
* fix answer dedup
* fix comment
* add multi local ip test case
* fix external ns records
* use k8s service name for ns record
* update test, add func comment
* expand nsAddrs() test cases
* support local ipv6 ip
* use less confusing pod ip in test
Don't add pods to our internal cache that are being deleted. This saves
a field in the struct as well.
Add (extra) comments about adding fields to the
object/{Pod,Service,Endpoint} structs.
Signed-off-by: Miek Gieben <miek@miek.nl>
