Commit Graph

26 Commits (c889254b423b884878c97c7003e581c1f1eb8b0b)

Author SHA1 Message Date
Maisem Ali df89b7de10 cmd/k8s-operator: disable HTTP/2 for the auth proxy
Kubernetes uses SPDY/3.1 which is incompatible with HTTP/2, disable it
in the transport and server.

Fixes #7645
Fixes #7646

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali c87782ba9d cmd/k8s-operator: drop trailing dot in tagged node name
Also update tailcfg docs.

Updates #5055

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 558735bc63 cmd/k8s-operator: require HTTPS to be enabled for AuthProxy
Updates #5055

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 489e27f085 cmd/k8s-operator: make auth proxy pass tags as Impersonate-Group
We were not handling tags at all, pass them through as Impersonate-Group headers.
And use the FQDN for tagged nodes as Impersonate-User.

Updates #5055

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Sonia Appasamy 7985f5243a cmd/k8s-operator: update device authorization copy
"Device Authorization" was recently renamed to "Device Approval"
on the control side. This change updates the k8s operator to match.

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
2 years ago
Maisem Ali 49c206fe1e tailcfg,hostinfo: add App field to identify tsnet uses
This allows us to differentiate between the various tsnet apps that
we have like `golinks` and `k8s-operator`.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 06a10125fc cmd/k8s-operator: set hostinfo.Package
This allows identifying the operator.

Updates #5055

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 05adf22383 cmd/k8s-operator: add support for running an auth proxy
Updates #5055

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
David Anderson e51cf1b09d cmd/k8s-operator: use unstable tailscale image as well
We need a post-1.36 tailscale image to handle custom hostnames correctly.

Updates #502

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson 0dc9cbc9ab cmd/k8s-operator: use the unstable operator image
There is no stable release yet, and for alpha we want people on the
unstable build while we iterate.

Updates #502

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
Will Norris 71029cea2d all: update copyright and license headers
This updates all source files to use a new standard header for copyright
and license declaration.  Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.

This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.

Updates #6865

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
David Anderson 9bd6a2fb8d cmd/k8s-operator: support setting a custom hostname.
Updates #502

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
Vince Prignano 30380403d0 cmd/k8s-operator: remove use of InjectClient (deprecated)
The dependency injection functionality has been deprecated a while back
and it'll be removed in the 0.15 release of Controller Runtime. This
changeset sets the Client after creating the Manager, instead of using
InjectClient.

Signed-off-by: Vince Prignano <vince@prigna.com>
2 years ago
David Anderson 8171eb600c cmd/k8s-operator: move the operator into its own namespace.
The operator creates a fair bit of internal cluster state to manage proxying,
dumping it all in the default namespace is handy for development but rude
for production.

Updates #502

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson 3a5fc233aa cmd/k8s-operator: use oauth credentials for API access.
This automates both the operator's initial login, and
provisioning/deprovisioning of proxies.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson a7ab3429b6 cmd/k8s-operator: refactor reconcile loop, un-plumbing reconcile.Result.
We used to need to do timed requeues in a few places in the reconcile logic,
and the easiest way to do that was to plumb reconcile.Result return values
around. But now we're purely event-driven, so the only thing we care about
is whether or not an error occurred.

Incidentally also fix a very minor bug where headless services would get
completely ignored, rather than reconciled into the correct state. This
shouldn't matter in practice because you can't transition from a headful
to a headless service without a deletion, but for consistency let's avoid
having a path that takes no definite action if a service of interest does
exist.

Updates #502.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson 835a73cc1f cmd/k8s-operator: remove unnecessary timed requeue.
Previously, we had to do blind timed requeues while waiting for
the tailscale hostname, because we looked up the hostname through
the API. But now the proxy container image writes back its hostname
to the k8s secret, so we get an event-triggered reconcile automatically
when the time is right.

Updates #502

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson d857fd00b3 cmd/k8s-operator: sprinkle debug logging throughout.
As is convention in the k8s world, use zap for structured logging. For
development, OPERATOR_LOGGING=dev switches to a more human-readable output
than JSON.

Updates #502

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson 8ccd707218 cmd/k8s-operator: remove times requeues in proxy deletion path.
Our reconcile loop gets triggered again when the StatefulSet object
finally disappears (in addition to when its deletion starts, as indicated
by DeletionTimestamp != 0). So, we don't need to queue additional
reconciliations to proceed with the remainder of the cleanup, that
happens organically.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson 9c77205ba1 cmd/k8s-operator: add more tests for "normal" paths.
Tests cover configuring a proxy through an annotation rather than a
LoadBalancerClass, and converting between those two modes at runtime.

Updates #502.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson c902190e67 cmd/k8s-operator: factor out some of the larger expected test outputs.
For other test cases, the operator is going to produce similar generated
objects in several codepaths, and those objects are large. Move them out
to helpers so that the main test code stays a bit more intelligible.

The top-level Service that we start and end with remains in the main test
body, because its shape at the start and end is one of the main things that
varies a lot between test cases.

Updates #502.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson 8dbb3b8bbe cmd/k8s-operator: remove unused structs. Cleanup missed in #6718.
Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson 53a9cc76c7 cmd/k8s-operator: rename main.go -> operator.go.
Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson bc8f5a7734 cmd/k8s-operator: add a basic unit test.
The test verifies one of the successful reconcile paths, where
a client requests an exposed service via a LoadBalancer class.

Updates #502.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson 3b7ae39a06 cmd/k8s-operator: use the client's authkey method to create auth keys.
Also introduces an intermediary interface for the tailscale client, in
preparation for operator tests that fake out the Tailscale API interaction.

Updates #502.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson b2d4abf25a cmd/k8s-operator: add a kubernetes operator.
This was initially developed in a separate repo, but for build/release
reasons and because go module management limits the damage of importing
k8s things now, moving it into this repo.

At time of commit, the operator enables exposing services over tailscale,
with the 'tailscale' loadBalancerClass. It also currently requires an
unreleased feature to access the Tailscale API, so is not usable yet.

Updates #502.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago