talos/internal/pkg/environment/environment.go
Andrey Smirnov 544cb4fe7d
refactor: accept partial machine configuration
This refactors code to handle partial machine config - only multi-doc
without v1alpha1 config.

This uses improvements from
https://github.com/cosi-project/runtime/pull/300:

* where possible, use `TransformController`
* use integrated tracker to reduce boilerplate

Sometimes fix/rewrite tests where applicable.

Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
2023-07-27 17:00:42 +04:00

45 lines
1.2 KiB
Go

// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
// Package environment provides a set of functions to get environment variables.
package environment
import (
"github.com/siderolabs/go-procfs/procfs"
"github.com/siderolabs/talos/pkg/machinery/config"
"github.com/siderolabs/talos/pkg/machinery/constants"
)
// Get the desired set of the environment variables based on kernel cmdline and machine config.
//
// The returned value is a list of strings in the form of "key=value".
func Get(cfg config.Config) []string {
return GetCmdline(procfs.ProcCmdline(), cfg)
}
// GetCmdline the desired set of the environment variables based on kernel cmdline.
func GetCmdline(cmdline *procfs.Cmdline, cfg config.Config) []string {
var result []string
param := cmdline.Get(constants.KernelParamEnvironment)
for idx := 0; ; idx++ {
val := param.Get(idx)
if val == nil {
break
}
result = append(result, *val)
}
if cfg != nil && cfg.Machine() != nil {
for k, v := range cfg.Machine().Env() {
result = append(result, k+"="+v)
}
}
return result
}