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54 lines
2.9 KiB
Go
54 lines
2.9 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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// Package kube provides a client to interact with Kubernetes.
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// This package is Tailscale-internal and not meant for external consumption.
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// Further, the API should not be considered stable.
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package kube
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import "net/netip"
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// KubernetesCapRule is a rule provided via PeerCapabilityKubernetes capability.
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type KubernetesCapRule struct {
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// Impersonate is a list of rules that specify how to impersonate the caller
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// when proxying to the Kubernetes API.
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Impersonate *ImpersonateRule `json:"impersonate,omitempty"`
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// Recorders defines a tag of a tsrecorder instance(s) that a recording
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// of a 'kubectl exec' session, matching `src` of this grant, to an API
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// server proxy, matching `dst` of this grant, should be sent to.
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// This list must not contain more than one tag. The field
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// name matches the `Recorder` field with equal semantics for Tailscale
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// SSH session recorder. This field is set by users in ACL grants and is
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// then parsed by control, which resolves the tags and populates `RecorderAddrs``.
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// https://tailscale.com/kb/1246/tailscale-ssh-session-recording#turn-on-session-recording-in-acls
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Recorders []string `json:"recorder,omitempty"`
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// RecorderAddrs is a list of addresses that should be addresses of one
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// or more tsrecorder instance(s). If set, any `kubectl exec` session
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// from a client matching `src` of this grant to an API server proxy
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// matching `dst` of this grant will be recorded and the recording will
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// be sent to the tsrecorder. This field does not exist in the user
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// provided ACL grants - it is populated by control, which obtains the
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// addresses by resolving the tags provided via `Recorders` field.
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RecorderAddrs []netip.AddrPort `json:"recorderAddrs,omitempty"`
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// EnforceRecorder defines whether a kubectl exec session from a client
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// matching `src` to an API server proxy matching `dst` should fail
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// closed if it cannot be recorded (i.e if no recorder can be reached).
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// Default is to fail open.
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// The field name matches `EnforceRecorder` field with equal semantics for Tailscale SSH
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// session recorder.
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// https://tailscale.com/kb/1246/tailscale-ssh-session-recording#turn-on-session-recording-in-acls
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EnforceRecorder bool `json:"enforceRecorder,omitempty"`
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}
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// ImpersonateRule defines how a request from the tailnet identity matching
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// 'src' of this grant should be impersonated.
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type ImpersonateRule struct {
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// Groups can be used to set a list of groups that a request to
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// Kubernetes API server should be impersonated as from. Groups in
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// Kubernetes only exist as subjects that RBAC rules refer to. Caller
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// can choose to use an existing group, such as system:masters, or
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// create RBAC for a new group.
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// https://kubernetes.io/docs/reference/access-authn-authz/rbac/#referring-to-subjects
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Groups []string `json:"groups,omitempty"`
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}
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