Commit Graph

7 Commits (ccdd2e6650e9ab3c877037957be205992d44221a)

Author SHA1 Message Date
Irbe Krumina c3e2b7347b
tailcfg,cmd/k8s-operator,kube: move Kubernetes cap to a location that can be shared with control (#12236)
This PR is in prep of adding logic to control to be able to parse
tailscale.com/cap/kubernetes grants in control:
- moves the type definition of PeerCapabilityKubernetes cap to a location
shared with control.
- update the Kubernetes cap rule definition with fields for granting
kubectl exec session recording capabilities.
- adds a convenience function to produce tailcfg.RawMessage from an
arbitrary cap rule and a test for it.

An example grant defined via ACLs:
"grants": [{
      "src": ["tag:eng"],
      "dst": ["tag:k8s-operator"],
      "app": {
        "tailscale.com/cap/kubernetes": [{
            "recorder": ["tag:my-recorder"]
	    “enforceRecorder”: true
        }],
      },
    }
]
This grant enforces `kubectl exec` sessions from tailnet clients,
matching `tag:eng` via API server proxy matching `tag:k8s-operator`
to be recorded and recording to be sent to a tsrecorder instance,
matching `tag:my-recorder`.

The type needs to be shared with control because we want
control to parse this cap and resolve tags to peer IPs.

Updates tailscale/corp#19821

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
5 months ago
Irbe Krumina 82576190a7
tailcfg,cmd/k8s-operator: moves tailscale.com/cap/kubernetes peer cap to tailcfg (#12235)
This is done in preparation for adding kubectl
session recording rules to this capability grant that will need to
be unmarshalled by control, so will also need to be
in a shared location.

Updates tailscale/corp#19821

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
6 months ago
Joe Tsai c25968e1c5
all: make use of ctxkey everywhere (#10846)
Also perform minor cleanups on the ctxkey package itself.
Provide guidance on when to use ctxkey.Key[T] over ctxkey.New.
Also, allow for interface kinds because the value wrapping trick
also happens to fix edge cases with interfaces in Go.

Updates #cleanup

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
10 months ago
Irbe Krumina dd8bc9ba03
cmd/k8s-operator: log user/group impersonated by apiserver proxy (#10334)
Updates tailscale/tailscale#10127

Signed-off-by: Irbe Krumina <irbe@tailscale.com>
1 year ago
Maisem Ali d06b48dd0a tailcfg: add RawMessage
This adds a new RawMessage type backed by string instead of the
json.RawMessage which is backed by []byte. The byte slice makes
the generated views be a lot more defensive than the need to be
which we can get around by using a string instead.

Updates #cleanup

Signed-off-by: Maisem Ali <maisem@tailscale.com>
1 year ago
Brad Fitzpatrick 98a5116434 all: adjust some build tags for plan9
I'm not saying it works, but it compiles.

Updates #5794

Change-Id: I2f3c99732e67fe57a05edb25b758d083417f083e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Maisem Ali 24509f8b22 cmd/k8s-operator: add support for control plane assigned groups
Previously we would use the Impersonate-Group header to pass through
tags to the k8s api server. However, we would do nothing for non-tagged
nodes. Now that we have a way to specify these via peerCaps respect those
and send down groups for non-tagged nodes as well.

For tagged nodes, it defaults to sending down the tags as groups to retain
legacy behavior if there are no caps set. Otherwise, the tags are omitted.

Updates #5055

Signed-off-by: Maisem Ali <maisem@tailscale.com>
1 year ago