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openstack: read credentials from clouds.yaml
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,15 @@ | ||
| load("@io_bazel_rules_go//go:def.bzl", "go_library") | ||
|
|
||
| go_library( | ||
| name = "clouds", | ||
| srcs = [ | ||
| "clouds.go", | ||
| "read.go", | ||
| ], | ||
| importpath = "github.com/edgelesssys/constellation/v2/internal/cloud/openstack/clouds", | ||
| visibility = ["//:__subpackages__"], | ||
| deps = [ | ||
| "//internal/file", | ||
| "@com_github_mitchellh_go_homedir//:go-homedir", | ||
| ], | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,59 @@ | ||
| /* | ||
| Copyright (c) Edgeless Systems GmbH | ||
| SPDX-License-Identifier: AGPL-3.0-only | ||
| */ | ||
| package clouds | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "github.com/mitchellh/go-homedir" | ||
|
|
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| "github.com/edgelesssys/constellation/v2/internal/file" | ||
| ) | ||
|
|
||
| func ReadCloudsYAML(fileHandler file.Handler, path string) (Clouds, error) { | ||
| // Order of operations as performed by the OpenStack CLI: | ||
|
|
||
| // Define a search path for clouds.yaml: | ||
| // 1. If OS_CLIENT_CONFIG_FILE is set, use it as search path | ||
| // 2. Otherwise, use the following paths: | ||
| // - current directory | ||
| // - `openstack` directory under standard user config directory (e.g. ~/.config/openstack) | ||
| // - /etc/openstack (Unix only) | ||
|
|
||
| confDir, err := os.UserConfigDir() | ||
| if err != nil { | ||
| return Clouds{}, fmt.Errorf("getting user config directory: %w", err) | ||
| } | ||
|
|
||
| var searchPaths []string | ||
| if path != "" { | ||
| expanded, err := homedir.Expand(path) | ||
| if err == nil { | ||
| searchPaths = append(searchPaths, expanded) | ||
| } else { | ||
| searchPaths = append(searchPaths, path) | ||
| } | ||
| } else if osClientConfigFile := os.Getenv("OS_CLIENT_CONFIG_FILE"); osClientConfigFile != "" { | ||
| searchPaths = append(searchPaths, filepath.Join(osClientConfigFile, "clouds.yaml")) | ||
| } else { | ||
| searchPaths = append(searchPaths, "clouds.yaml") | ||
| searchPaths = append(searchPaths, filepath.Join(confDir, "openstack", "clouds.yaml")) | ||
| if os.PathSeparator == '/' { | ||
| searchPaths = append(searchPaths, "/etc/openstack/clouds.yaml") | ||
| } | ||
| } | ||
|
|
||
| var cloudsYAML Clouds | ||
| for _, path := range searchPaths { | ||
| if err := fileHandler.ReadYAML(path, &cloudsYAML); err == nil { | ||
| return cloudsYAML, nil | ||
| } | ||
| } | ||
|
|
||
| return Clouds{}, fmt.Errorf("clouds.yaml not found in search paths: %v", searchPaths) | ||
| } |
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