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ea0e9bdbe4
Unify getting environment variables, support passing environment variables via kernel args. Fixes #6984 See #6999 For META this will be used to pass environment variables to the installer for ISO images (or PXE booting). Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
45 lines
1.2 KiB
Go
45 lines
1.2 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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// Package environment provides a set of functions to get environment variables.
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package environment
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import (
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"github.com/siderolabs/go-procfs/procfs"
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"github.com/siderolabs/talos/pkg/machinery/config"
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"github.com/siderolabs/talos/pkg/machinery/constants"
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)
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// Get the desired set of the environment variables based on kernel cmdline and machine config.
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//
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// The returned value is a list of strings in the form of "key=value".
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func Get(cfg config.Provider) []string {
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return GetCmdline(procfs.ProcCmdline(), cfg)
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}
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// GetCmdline the desired set of the environment variables based on kernel cmdline.
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func GetCmdline(cmdline *procfs.Cmdline, cfg config.Provider) []string {
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var result []string
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param := cmdline.Get(constants.KernelParamEnvironment)
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for idx := 0; ; idx++ {
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val := param.Get(idx)
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if val == nil {
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break
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}
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result = append(result, *val)
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}
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if cfg != nil {
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for k, v := range cfg.Machine().Env() {
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result = append(result, k+"="+v)
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}
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}
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return result
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}
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