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pkg/genericapiserver/options: don't import pkg/apiserver
Refactor the authorization options for the API server so
pkg/apiserver isn't directly imported by the options package.
Closes#28544
cc @smarterclayton
@madhusudancs, @nikhiljindal I've updated `federation/cmd/federation-apiserver/app/server.go` to include the RBAC options with this change. I don't know if this was intentionally left out in the first place but would like your feedback.
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allow group impersonation
Adds an "Impersonate-Group" header that can be used to specify exactly which groups to use on an impersonation request.
This also restructures the code to make it easier to add the scopes header next. This closely parallels the "Impersonate-User" header, so I figured I'd start easy.
@kubernetes/sig-auth
@ericchiang are you comfortable reviewing?
Convert single GV and lists of GVs into an interface that can handle
more complex scenarios (everything internal, nothing supported). Pass
the interface down into conversion.
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pkg/apiserver/authenticator: reorder oidc plugin to auth after service accounts
Both plugins verify JWTs, but the OpenID Connect plugin performs
much worse when faced with cache misses. Reorder the plugins so
the service account plugin tries to authenticate a bearer token
first.
I had a fun time with this by writing an OpenID Connect provider that stores its data in third party resources. When it's running in the cluster it uses a service account and caused some interesting behavior when the keys expired.
Our OpenID Connect plugin needs a more sophisticated caching model to avoid continuously re-requesting keys when seeing a lot of tokens it doesn't recognize. However, I feel this reordering is generally useful since service accounts will be more common than OpenID Connect tokens.
cc @kubernetes/sig-auth
Both plugins verify JWTs, but the OpenID Connect plugin performs
much worse when faced with cache misses. Reorder the plugins so
the service account plugin tries to authenticate a bearer token
first.
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apiserver: fix timeout handler
Protect access of the original writer. Panics if anything has wrote
into the original writer or the writer is hijacked when times out.
Fix#29001
/cc @smarterclayton @lavalamp
The next step would be respect the request context once 1.7 is out.
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Run goimport for the whole repo
While removing GOMAXPROC and running goimports, I noticed quite a lot of other files also needed a goimport format. Didn't commit `*.generated.go`, `*.deepcopy.go` or files in `vendor`
This is more for testing if it builds.
The only strange thing here is the gopkg.in/gcfg.v1 => github.com/scalingdata/gcfg replace.
cc @jfrazelle @thockin
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Type define note "errNotAcceptable" should be "errUnsupportedMediaType"
In file "pkg\apiserver\errors.go", line 129:
"// errNotAcceptable indicates Content-Type is not recognized"
Here "errNotAcceptable" shuould be "errUnsupportedMediaType", thus consistent with line 131:
"type errUnsupportedMediaType struct"
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Return (bool, error) in Authorizer.Authorize()
Before this change, Authorize() method was just returning an error, regardless of whether the user is unauthorized or whether there is some other unrelated error. Returning boolean with information about user authorization and error (which should be unrelated to the authorization) separately will make it easier to debug.
Fixes#27974
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Apiserver ServeHTTP() modify
In File "pkg\apiserver\watch.go", line 123:
"// Serve serves a series of encoded events via HTTP with Transfer-Encoding: chunked"
Here "Serve" should be "ServeHTTP" because the func name is ServeHTTP:
"func (s *WatchServer) ServeHTTP(w http.ResponseWriter, req *http.Request)"
Before this change, Authorize() method was just returning an error,
regardless of whether the user is unauthorized or whether there
is some other unrelated error. Returning boolean with information
about user authorization and error (which should be unrelated to
the authorization) separately will make it easier to debug.
Fixes#27974
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oidc auth plugin: don't hard fail if provider is unavailable
When using OpenID Connect authentication, don't cause the API
server to fail if the provider is unavailable. This allows
installations to run OpenID Connect providers after starting the
API server, a common case when the provider is running on the
cluster itself.
Errors are now deferred to the authenticate method.
cc @sym3tri @erictune @aaronlevy @kubernetes/sig-auth
When using OpenID Connect authentication, don't cause the API
server to fail if the provider is unavailable. This allows
installations to run OpenID Connect providers after starting the
API server, a common case when the provider is running on the
cluster itself.
Errors are now deferred to the authenticate method.
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add unit and integration tests for rbac authorizer
This PR adds lots of tests for the RBAC authorizer.
The plan over the next couple days is to add a lot more test cases.
Updates #23396
cc @erictune
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Remove EncodeToStream(..., []unversioned.GroupVersion)
Was not being used. Is a signature change and is necessary for post 1.3 work on Templates and other objects that nest objects.
Extracted from #26044
Make unversioned.ListMeta implement List. Update all the *List types so they implement GetListMeta.
This helps avoid using reflection to get list information.
Remove all unnecessary boilerplate, move the interfaces to the right
places, and add a test that verifies that objects implement one, the
other, but never both.
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Delay flush if the watch queue has pending items
Simple deferral of flush can reduce Syscalls when watch queues build up.
Simpler version of #24768Fixes#24729
@xiang90 @wojtek-t
Kubernetes Submit Queue
