m/n/kubernetes: implement Metropolis authenticating proxy
This implements an authenticating proxy for K8s which can authenticate
Metropolis credentials and passes the extracted identity information
back to the Kubernetes API server. It currently only handles user
authentication, machine-to-machine authentication is still done by the
API server itself. It also adds a role binding to allow full access
to the owner as we do not have an identity system yet.
Change-Id: I02043924bb7ce7a1acdb826dad2d27a4c2008136
Reviewed-on: https://review.monogon.dev/c/monogon/+/509
Reviewed-by: Sergiusz Bazanski <serge@monogon.tech>
diff --git a/metropolis/node/kubernetes/authproxy/BUILD.bazel b/metropolis/node/kubernetes/authproxy/BUILD.bazel
new file mode 100644
index 0000000..965e8ad
--- /dev/null
+++ b/metropolis/node/kubernetes/authproxy/BUILD.bazel
@@ -0,0 +1,15 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+ name = "go_default_library",
+ srcs = ["authproxy.go"],
+ importpath = "source.monogon.dev/metropolis/node/kubernetes/authproxy",
+ visibility = ["//visibility:public"],
+ deps = [
+ "//metropolis/node:go_default_library",
+ "//metropolis/node/core/identity:go_default_library",
+ "//metropolis/node/kubernetes/pki:go_default_library",
+ "//metropolis/pkg/supervisor:go_default_library",
+ "@io_k8s_apimachinery//pkg/apis/meta/v1:go_default_library",
+ ],
+)