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https://github.com/tailscale/tailscale.git
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f421907c38
Adds a new reconciler for ProxyGroups of type kube-apiserver that will provision a Tailscale Service for each replica to advertise. Adds two new condition types to the ProxyGroup, TailscaleServiceValid and TailscaleServiceConfigured, to post updates on the state of that reconciler in a way that's consistent with the service-pg reconciler. The created Tailscale Service name is configurable via a new ProxyGroup field spec.kubeAPISserver.ServiceName, which expects a string of the form "svc:<dns-label>". Lots of supporting changes were needed to implement this in a way that's consistent with other operator workflows, including: * Pulled containerboot's ensureServicesUnadvertised and certManager into kube/ libraries to be shared with k8s-proxy. Use those in k8s-proxy to aid Service cert sharing between replicas and graceful Service shutdown. * For certManager, add an initial wait to the cert loop to wait until the domain appears in the devices's netmap to avoid a guaranteed error on the first issue attempt when it's quick to start. * Made several methods in ingress-for-pg.go and svc-for-pg.go into functions to share with the new reconciler * Added a Resource struct to the owner refs stored in Tailscale Service annotations to be able to distinguish between Ingress- and ProxyGroup- based Services that need cleaning up in the Tailscale API. * Added a ListVIPServices method to the internal tailscale client to aid cleaning up orphaned Services * Support for reading config from a kube Secret, and partial support for config reloading, to prevent us having to force Pod restarts when config changes. * Fixed up the zap logger so it's possible to set debug log level. Updates #13358 Change-Id: Ia9607441157dd91fb9b6ecbc318eecbef446e116 Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
50 lines
1.3 KiB
Go
50 lines
1.3 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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// Package localclient provides an interface for all the local.Client methods
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// kube needs to use, so that we can easily mock it in tests.
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package localclient
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import (
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"context"
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"io"
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"tailscale.com/client/local"
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"tailscale.com/ipn"
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)
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// LocalClient is roughly a subset of the local.Client struct's methods, used
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// for easier testing.
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type LocalClient interface {
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WatchIPNBus(ctx context.Context, mask ipn.NotifyWatchOpt) (IPNBusWatcher, error)
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CertIssuer
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}
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// IPNBusWatcher is local.IPNBusWatcher's methods restated in an interface to
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// allow for easier mocking in tests.
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type IPNBusWatcher interface {
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io.Closer
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Next() (ipn.Notify, error)
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}
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type CertIssuer interface {
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CertPair(context.Context, string) ([]byte, []byte, error)
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}
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// New returns a LocalClient that wraps the provided local.Client.
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func New(lc *local.Client) LocalClient {
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return &localClient{lc: lc}
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}
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type localClient struct {
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lc *local.Client
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}
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func (l *localClient) WatchIPNBus(ctx context.Context, mask ipn.NotifyWatchOpt) (IPNBusWatcher, error) {
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return l.lc.WatchIPNBus(ctx, mask)
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}
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func (l *localClient) CertPair(ctx context.Context, domain string) ([]byte, []byte, error) {
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return l.lc.CertPair(ctx, domain)
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}
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