mirror of
https://github.com/tailscale/tailscale.git
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9b88169de7
Refactors the proxy library interface to suit being a library better and adds a new k8s-proxy command, alongside Makefile and build_docker.sh updates to build a container out of it. Most features intentionally missing for now to act as a base/MVP version of the proxy command. Updates #13358 Change-Id: I21580db1875d2e64d72c4c988fe11c55f5cd6ae5 Signed-off-by: Tom Proctor <tomhjp@users.noreply.github.com>
62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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//go:build !plan9
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package main
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import (
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"fmt"
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"log"
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"os"
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)
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type apiServerProxyMode int
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func (a apiServerProxyMode) String() string {
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switch a {
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case apiServerProxyModeDisabled:
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return "disabled"
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case apiServerProxyModeEnabled:
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return "auth"
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case apiServerProxyModeNoAuth:
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return "noauth"
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default:
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return "unknown"
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}
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}
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const (
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apiServerProxyModeDisabled apiServerProxyMode = iota
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apiServerProxyModeEnabled
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apiServerProxyModeNoAuth
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)
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func parseAPIProxyMode() apiServerProxyMode {
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haveAuthProxyEnv := os.Getenv("AUTH_PROXY") != ""
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haveAPIProxyEnv := os.Getenv("APISERVER_PROXY") != ""
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switch {
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case haveAPIProxyEnv && haveAuthProxyEnv:
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log.Fatal("AUTH_PROXY and APISERVER_PROXY are mutually exclusive")
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case haveAuthProxyEnv:
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var authProxyEnv = defaultBool("AUTH_PROXY", false) // deprecated
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if authProxyEnv {
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return apiServerProxyModeEnabled
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}
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return apiServerProxyModeDisabled
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case haveAPIProxyEnv:
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var apiProxyEnv = defaultEnv("APISERVER_PROXY", "") // true, false or "noauth"
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switch apiProxyEnv {
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case "true":
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return apiServerProxyModeEnabled
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case "false", "":
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return apiServerProxyModeDisabled
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case "noauth":
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return apiServerProxyModeNoAuth
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default:
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panic(fmt.Sprintf("unknown APISERVER_PROXY value %q", apiProxyEnv))
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}
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}
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return apiServerProxyModeDisabled
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}
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