Commit Graph

18 Commits (a809749edc51467860d05b633c40c64f5aafcc61)

Author SHA1 Message Date
Brad Davidson eb8bd15889 Ensure remotedialer kubelet connections use kubelet bind address
Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2024-07-10 13:00:25 -07:00
Brad Davidson f8e0648304 Convert remaining http handlers over to use util.SendError
Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2024-05-28 16:24:57 -07:00
Brad Davidson 7a2a2d075c Move error response generation code into util
Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2024-03-26 15:17:15 -07:00
Johnatas 6330a5b49c
Update to v1.28.2 and go v1.20.8 (#8364)
* Update to v1.28.2

Signed-off-by: Johnatas <johnatasr@hotmail.com>

* Bump containerd and stargz versions

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

* Print message on upgrade fail

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

* Send Bad Gateway instead of Service Unavailable when tunnel dial fails

Works around new handling for Service Unavailable by apiserver aggregation added in kubernetes/kubernetes#119870

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

* Add 60 seconds to server upgrade wait to account for delays in apiserver readiness

Also change cleanup helper to ensure upgrade test doesn't pollute the
images for the rest of the tests.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>

---------

Signed-off-by: Johnatas <johnatasr@hotmail.com>
Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
Co-authored-by: Brad Davidson <brad.davidson@rancher.com>
2023-09-19 10:18:47 -03:00
Brad Davidson c44d33d29b Fix race condition in tunnel server startup
Several places in the code used a 5-second retry loop to wait on
Runtime.Core to be set. This caused a race condition where OnChange
handlers could be added after the Wrangler shared informers were already
started. When this happened, the handlers were never called because the
shared informers they relied upon were not started.

Fix that by requiring anything that waits on Runtime.Core to run from a
cluster controller startup hook that is guaranteed to be called before
the shared informers are started, instead of just firing it off in a
goroutine that retries until it is set.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2023-04-28 11:24:34 -07:00
Brad Davidson b411864be5 Handle custom kubelet port in agent tunnel
The kubelet port can be overridden by users; we shouldn't assume its always 10250

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2022-10-05 21:10:38 -07:00
Brad Davidson 11072e2516 Fix occasional "TLS handshake error" in apiserver network proxy.
We should be reading from the hijacked bufio.ReaderWriter instead of
directly from the net.Conn. There is a race condition where the
underlying http handler may consume bytes from the hijacked request
stream, if it comes in the same packet as the CONNECT header. These
bytes are left in the buffered reader, which we were not using. This was
causing us to occasionally drop a few bytes from the start of the
tunneled connection's client data stream.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2022-10-05 21:10:38 -07:00
Brad Davidson 5eaa0a9422 Replace getLocalhostIP with Loopback helper method
Requires tweaking existing method signature to allow specifying whether or not IPv6 addresses should be return URL-safe.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2022-07-21 16:51:57 -07:00
Brad Davidson afee83dda2 Bump remotedialer
Includes fix for recently identified memory leak.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2022-07-07 12:22:37 -07:00
Brad Davidson b550e1183a Remove control-plane egress context and fix agent mode.
The control-plane context handles requests outside the cluster and
should not be sent to the proxy.

In agent mode, we don't watch pods and just direct-dial any request for
a non-node address, which is the original behavior.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2022-06-10 10:14:15 -07:00
Brad Davidson d3242bea3c Refactor egress-selector pods mode to watch pods
Watching pods appears to be the most reliable way to ensure that the
proxy routes and authorizes connections.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2022-06-08 09:34:53 -07:00
Brad Davidson 9d7230496d Add support for configuring the EgressSelector mode
Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2022-05-18 13:26:10 -07:00
Brad Davidson ce5b9347c9 Replace DefaultProxyDialerFn dialer injection with EgressSelector support
Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2022-04-29 17:54:36 -07:00
Brad Davidson af0b496ef3 Add client certificate authentication support to core Authenticator
This is required to make the websocket tunnel server functional on
etcd-only nodes, and will save some code on the RKE2 side once pulled
through.

Signed-off-by: Brad Davidson <brad.davidson@rancher.com>
2022-04-06 13:03:14 -07:00
Darren Shepherd 3396a7b099 If tunnel session does not exist fallback to default dialer 2020-01-22 11:04:41 -07:00
Darren Shepherd ba240d0611 Refactor tokens, bootstrap, and cli args 2019-10-30 19:06:49 -07:00
Darren Shepherd c0702b0492 Port to wrangler 2019-05-26 22:28:50 -07:00
Darren Shepherd 9bb7c27c62 Initial Commit 2019-01-01 01:23:01 -07:00