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tailscale/k8s-operator/api-proxy
Tom Proctor 3eeecb4c7f
cmd/k8s-proxy,k8s-operator: fix serve config for userspace mode (#16919)
The serve code leaves it up to the system's DNS resolver and netstack to
figure out how to reach the proxy destination. Combined with k8s-proxy
running in userspace mode, this means we can't rely on MagicDNS being
available or tailnet IPs being routable. I'd like to implement that as a
feature for serve in userspace mode, but for now the safer fix to get
kube-apiserver ProxyGroups consistently working in all environments is to
switch to using localhost as the proxy target instead.

This has a small knock-on in the code that does WhoIs lookups, which now
needs to check the X-Forwarded-For header that serve populates to get
the correct tailnet IP to look up, because the request's remote address
will be loopback.

Fixes #16920

Change-Id: I869ddcaf93102da50e66071bb00114cc1acc1288

Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
3 months ago
..
doc.go cmd/k8s-operator,k8s-operator/api-proxy: move k8s proxy code to library (#15857) 7 months ago
proxy.go cmd/k8s-proxy,k8s-operator: fix serve config for userspace mode (#16919) 3 months ago
proxy_test.go cmd/k8s-operator,k8s-operator/api-proxy: move k8s proxy code to library (#15857) 7 months ago