talos/internal/pkg/environment/environment.go
Andrey Smirnov 0bb7e8a5cf
refactor: split config.Provider into Config & Container
See #7230

This is a step towards preparing for multi-doc config.

Split the `config.Provider` interface into parts which have different
implementation:

* `config.Config` accesses the config itself, it might be implemented by
  `v1alpha1.Config` for example
* `config.Container` will be a set of config documents, which implement
  validation, encoding, etc.

`Version()` method dropped, as it makes little sense and it was almost
not used.

`Raw()` method renamed to `RawV1Alpha1()` to support legacy direct
access to `v1alpha1.Config`, next PR will refactor more to make it
return proper type.

There will be many more changes coming up.

Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>
2023-05-23 16:05:16 +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 {
for k, v := range cfg.Machine().Env() {
result = append(result, k+"="+v)
}
}
return result
}