This commit adds a `replicas` field to the `Connector` custom resource that
allows users to specify the number of desired replicas deployed for their
connectors.
This allows users to deploy exit nodes, subnet routers and app connectors
in a highly available fashion.
Fixes#14020
Signed-off-by: David Bond <davidsbond93@gmail.com>
This commit modifies the k8s operator to allow for customisation of the ingress class name
via a new `OPERATOR_INGRESS_CLASS_NAME` environment variable. For backwards compatibility,
this defaults to `tailscale`.
When using helm, a new `ingress.name` value is provided that will set this environment variable
and modify the name of the deployed `IngressClass` resource.
Fixes https://github.com/tailscale/tailscale/issues/16248
Signed-off-by: David Bond <davidsbond93@gmail.com>
This commit modifies the kubernetes operator to allow for customisation of the tailscale
login url. This provides some data locality for people that want to configure it.
This value is set in the `loginServer` helm value and is propagated down to all resources
managed by the operator. The only exception to this is recorder nodes, where additional
changes are required to support modifying the url.
Updates https://github.com/tailscale/corp/issues/29847
Signed-off-by: David Bond <davidsbond93@gmail.com>
* cmd/k8s-operator: ProxyClass annotation for Services and Ingresses
Previously, the ProxyClass could only be configured for Services and
Ingresses via a Label. This adds the ability to set it via an
Annotation, but prioritizes the Label if both a Label and Annotation are
set.
Updates #14323
Signed-off-by: chaosinthecrd <tom@tmlabs.co.uk>
* Update cmd/k8s-operator/operator.go
Co-authored-by: Tom Proctor <tomhjp@users.noreply.github.com>
Signed-off-by: Tom Meadows <tom@tmlabs.co.uk>
* Update cmd/k8s-operator/operator.go
Signed-off-by: Tom Meadows <tom@tmlabs.co.uk>
* cmd/k8s-operator: ProxyClass annotation for Services and Ingresses
Previously, the ProxyClass could only be configured for Services and
Ingresses via a Label. This adds the ability to set it via an
Annotation, but prioritizes the Label if both a Label and Annotation are
set.
Updates #14323
Signed-off-by: chaosinthecrd <tom@tmlabs.co.uk>
---------
Signed-off-by: chaosinthecrd <tom@tmlabs.co.uk>
Signed-off-by: Tom Meadows <tom@tmlabs.co.uk>
Co-authored-by: Tom Proctor <tomhjp@users.noreply.github.com>
cmd/k8s-operator: ensure HA Ingress can operate in multicluster mode.
Update the owner reference mechanism so that:
- if during HA Ingress resource creation, a VIPService
with some other operator's owner reference is already found,
just update the owner references to add one for this operator
- if during HA Ingress deletion, the VIPService is found to have owner
reference(s) from another operator, don't delete the VIPService, just
remove this operator's owner reference
- requeue after HA Ingress reconciles that resulted in VIPService updates,
to guard against overwrites due to concurrent operations from different
clusters.
Updates tailscale/corp#24795
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
cmd/k8s-operator: add logic to parse L7 Ingresses in HA mode
- Wrap the Tailscale API client used by the Kubernetes Operator
into a client that knows how to manage VIPServices.
- Create/Delete VIPServices and update serve config for L7 Ingresses
for ProxyGroup.
- Ensure that ingress ProxyGroup proxies mount serve config from a shared ConfigMap.
Updates tailscale/corp#24795
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
Every so often, the ProxyGroup and other controllers lose an optimistic locking race
with other controllers that update the objects they create. Stop treating
this as an error event, and instead just log an info level log line for it.
Fixes#14072
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
cmd/containerboot,kube/kubetypes,cmd/k8s-operator: detect if Ingress is created in a tailnet that has no HTTPS
This attempts to make Kubernetes Operator L7 Ingress setup failures more explicit:
- the Ingress resource now only advertises HTTPS endpoint via status.ingress.loadBalancer.hostname when/if the proxy has succesfully loaded serve config
- the proxy attempts to catch cases where HTTPS is disabled for the tailnet and logs a warning
Updates tailscale/tailscale#12079
Updates tailscale/tailscale#10407
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
* cmd/k8s-operator,k8s-operator,go.mod: optionally create ServiceMonitor
Adds a new spec.metrics.serviceMonitor field to ProxyClass.
If that's set to true (and metrics are enabled), the operator
will create a Prometheus ServiceMonitor for each proxy to which
the ProxyClass applies.
Additionally, create a metrics Service for each proxy that has
metrics enabled.
Updates tailscale/tailscale#11292
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
The default ProxyClass can be set via helm chart or env var, and applies
to all proxies that do not otherwise have an explicit ProxyClass set.
This ensures proxies created by the new ProxyGroup CRD are consistent
with the behaviour of existing proxies
Nearby but unrelated changes:
* Fix up double error logs (controller runtime logs returned errors)
* Fix a couple of variable names
Updates #13406
Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
Rename kube/{types,client,api} -> kube/{kubetypes,kubeclient,kubeapi}
so that we don't need to rename the package on each import to
convey that it's kubernetes specific.
Updates#cleanup
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
Further split kube package into kube/{client,api,types}. This is so that
consumers who only need constants/static types don't have to import
the client and api bits.
Updates#cleanup
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
Add a new .spec.tailscale.acceptRoutes field to ProxyClass,
that can be optionally set to true for the proxies to
accept routes advertized by other nodes on tailnet (equivalent of
setting --accept-routes to true).
Updates tailscale/tailscale#12322,tailscale/tailscale#10684
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
* cmd/k8s-operator,k8s-operator: introduce proxy configuration mechanism via ProxyClass custom resource.
ProxyClass custom resource can be used to specify customizations
for the proxy resources created by the operator.
Add a reconciler that validates ProxyClass resources
and sets a Ready condition to True or False with a corresponding reason and message.
This is required because some fields (labels and annotations)
require complex validations that cannot be performed at custom resource apply time.
Reconcilers that use the ProxyClass to configure proxy resources are expected to
verify that the ProxyClass is Ready and not proceed with resource creation
if configuration from a ProxyClass that is not yet Ready is required.
If a tailscale ingress/egress Service is annotated with a tailscale.com/proxy-class annotation, look up the corresponding ProxyClass and, if it is Ready, apply the configuration from the ProxyClass to the proxy's StatefulSet.
If a tailscale Ingress has a tailscale.com/proxy-class annotation
and the referenced ProxyClass custom resource is available and Ready,
apply configuration from the ProxyClass to the proxy resources
that will be created for the Ingress.
Add a new .proxyClass field to the Connector spec.
If connector.spec.proxyClass is set to a ProxyClass that is available and Ready,
apply configuration from the ProxyClass to the proxy resources created for the Connector.
Ensure that when Helm chart is packaged, the ProxyClass yaml is added to chart templates. Ensure that static manifest generator adds ProxyClass yaml to operator.yaml. Regenerate operator.yaml
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
* cmd/containerboot,cmd/k8s-operator/deploy/manifests: optionally forward cluster traffic via ingress proxy.
If a tailscale Ingress has tailscale.com/experimental-forward-cluster-traffic-via-ingress annotation, configure the associated ingress proxy to have its tailscale serve proxy to listen on Pod's IP address. This ensures that cluster traffic too can be forwarded via this proxy to the ingress backend(s).
In containerboot, if EXPERIMENTAL_PROXY_CLUSTER_TRAFFIC_VIA_INGRESS is set to true
and the node is Kubernetes operator ingress proxy configured via Ingress,
make sure that traffic from within the cluster can be proxied to the ingress target.
Updates tailscale/tailscale#10499
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
Do not provision resources for a tailscale Ingress that has no valid backends.
Updates tailscale/tailscale#10910
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
To reduce the likelihood of breaking users,
if we implement stricter Exact path type matching in the future.
Updates tailscale/tailscale#10730
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
* cmd/k8s-operator/deploy: deploy a Tailscale IngressClass resource.
Some Ingress validating webhooks reject Ingresses with
.spec.ingressClassName for which there is no matching IngressClass.
Additionally, validate that the expected IngressClass is present,
when parsing a tailscale `Ingress`.
We currently do not utilize the IngressClass,
however we might in the future at which point
we might start requiring that the right class
for this controller instance actually exists.
Updates tailscale/tailscale#10820
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
Co-authored-by: Anton Tolchanov <anton@tailscale.com>
We were too strict and required the user not specify the host field at all
in the ingress rules, but that degrades compatibility with existing helm charts.
Relax the constraint so that rule.Host can either be empty, or match the tls.Host[0]
value exactly.
Fixes#9548
Signed-off-by: Maisem Ali <maisem@tailscale.com>
Instead of confusing users, emit an event that explicitly tells the
user that HTTPS is disabled on the tailnet and that ingress may not
work until they enable it.
Updates #9141
Signed-off-by: Maisem Ali <maisem@tailscale.com>
First part of work for the functionality that allows users to create an egress
proxy to access Tailnet services from within Kubernetes cluster workloads.
This PR allows creating an egress proxy that can access Tailscale services over HTTP only.
Updates tailscale/tailscale#8184
Signed-off-by: irbekrm <irbekrm@gmail.com>
Co-authored-by: Maisem Ali <maisem@tailscale.com>
Co-authored-by: Rhea Ghosh <rhea@tailscale.com>
Previously, the operator would only monitor Services and create
a Tailscale StatefulSet which acted as a L3 proxy which proxied
traffic inbound to the Tailscale IP onto the services ClusterIP.
This extends that functionality to also monitor Ingress resources
where the `ingressClassName=tailscale` and similarly creates a
Tailscale StatefulSet, acting as a L7 proxy instead.
Users can override the desired hostname by setting:
```
- tls
hosts:
- "foo"
```
Hostnames specified under `rules` are ignored as we only create a single
host. This is emitted as an event for users to see.
Fixes#7895
Signed-off-by: Maisem Ali <maisem@tailscale.com>
David Bond
Tom Meadows
Irbe Krumina
Tom Proctor
ChandonPierre
Maisem Ali
Brad Fitzpatrick
Irbe Krumina
Mike Beaumont