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// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
//go:build !plan9
package main
import (
"fmt"
"log"
"os"
"tailscale.com/kube/kubetypes"
"tailscale.com/types/ptr"
)
func parseAPIProxyMode() *kubetypes.APIServerProxyMode {
haveAuthProxyEnv := os.Getenv("AUTH_PROXY") != ""
haveAPIProxyEnv := os.Getenv("APISERVER_PROXY") != ""
switch {
case haveAPIProxyEnv && haveAuthProxyEnv:
log.Fatal("AUTH_PROXY (deprecated) and APISERVER_PROXY are mutually exclusive, please unset AUTH_PROXY")
case haveAuthProxyEnv:
var authProxyEnv = defaultBool("AUTH_PROXY", false) // deprecated
if authProxyEnv {
return ptr.To(kubetypes.APIServerProxyModeAuth)
}
return nil
case haveAPIProxyEnv:
var apiProxyEnv = defaultEnv("APISERVER_PROXY", "") // true, false or "noauth"
switch apiProxyEnv {
case "true":
return ptr.To(kubetypes.APIServerProxyModeAuth)
case "false", "":
return nil
case "noauth":
return ptr.To(kubetypes.APIServerProxyModeNoAuth)
default:
panic(fmt.Sprintf("unknown APISERVER_PROXY value %q", apiProxyEnv))
}
}
return nil
}
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