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65c24b6334
ipnserver previously had support for a Windows-only environment variable mechanism that further only worked when Windows was running as a service, not from a console. But we want it to work from tailscaed too, and we want it to work on macOS and Synology. So move it to envknob, now that envknob can change values at runtime post-init. A future change will wire this up for more platforms, and do something more for CLI flags like --port, which the bug was originally about. Updates #5114 Change-Id: I9fd69a9a91bb0f308fc264d4a6c33e0cbe352d71 Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
28 lines
575 B
Go
28 lines
575 B
Go
// Copyright (c) 2022 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package envknob
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import (
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"os"
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"path/filepath"
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)
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func init() {
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platformApplyDiskConfig = platformApplyDiskConfigWindows
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}
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func platformApplyDiskConfigWindows() error {
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name := filepath.Join(os.Getenv("ProgramData"), "Tailscale", "tailscaled-env.txt")
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f, err := os.Open(name)
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if os.IsNotExist(err) {
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return nil
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}
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if err != nil {
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return err
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}
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defer f.Close()
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return applyKeyValueEnv(f)
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}
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