* 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>
The configuration knob (that defaulted to Connector being disabled)
was added largely because the Connector CRD had to be installed in a separate step.
Now when the CRD has been added to both chart and static manifest, we can have it on by default.
Updates tailscale/tailscale#10878
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
cmd/k8s-operator: add CRD to chart and static manifest
Add functionality to insert CRD to chart at package time.
Insert CRD to static manifests as this is where they are currently consumed from.
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
cmd/k8s-operator/deploy/crds,k8s-operator/apis/v1alpha1: allow to define an exit node via Connector CR.
Make it possible to define an exit node to be deployed to a Kubernetes cluster
via Connector Custom resource.
Also changes to Connector API so that one Connector corresponds
to one Tailnet node that can be either a subnet router or an exit
node or both.
The Kubernetes operator parses Connector custom resource and,
if .spec.isExitNode is set, configures that Tailscale node deployed
for that connector as an exit node.
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
Co-authored-by: Anton Tolchanov <anton@tailscale.com>
* k8s-operator,cmd/k8s-operator,Makefile,scripts,.github/workflows: add Connector kube CRD.
Connector CRD allows users to configure the Tailscale Kubernetes operator
to deploy a subnet router to expose cluster CIDRs or
other CIDRs available from within the cluster
to their tailnet.
Also adds various CRD related machinery to
generate CRD YAML, deep copy implementations etc.
Engineers will now have to run
'make kube-generate-all` after changing kube files
to ensure that all generated files are up to date.
* cmd/k8s-operator,k8s-operator: reconcile Connector resources
Reconcile Connector resources, create/delete subnetrouter resources in response to changes to Connector(s).
Connector reconciler will not be started unless
ENABLE_CONNECTOR env var is set to true.
This means that users who don't want to use the alpha
Connector custom resource don't have to install the Connector
CRD to their cluster.
For users who do want to use it the flow is:
- install the CRD
- install the operator (via Helm chart or using static manifests).
For Helm users set .values.enableConnector to true, for static
manifest users, set ENABLE_CONNECTOR to true in the static manifest.
Updates tailscale/tailscale#502
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
* cmd/k8s-operator: generate static manifests from Helm charts
This is done to ensure that there is a single source of truth
for the operator kube manifests.
Also adds linux node selector to the static manifests as
this was added as a default to the Helm chart.
Static manifests can now be generated by running
`go generate tailscale.com/cmd/k8s-operator`.
Updates tailscale/tailscale#9222
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
API v1 is compatible with helm v2 and v2 is not.
However, helm v2 (the Tiller deployment mechanism) was deprecated in 2020
and no-one should be using it anymore.
This PR also adds a CI lint test for helm chart
Updates tailscale/tailscale#9222
Signed-off-by: Irbe Krumina <irbe@tailscale.com>
