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AB#2098 versioned & strict yaml reading (#157)

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This commit is contained in:
Fabian Kammel 2022-05-18 18:10:57 +02:00 • committed by GitHub
parent 7c2d1c3490
commit 135c787001
5 changed files with 134 additions and 32 deletions
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13
internal/config/config.go
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@ -13,8 +13,15 @@ import (
"github.com/edgelesssys/constellation/internal/file"
)
const (
Version1 = "v1"
)
// Config defines configuration used by CLI.
type Config struct {
// description: |
// Schema version of this configuration file.
Version string `yaml:"version"`
// description: |
// Minimum number of nodes in autoscaling group.
// worker nodes.
@ -154,6 +161,7 @@ type QEMUConfig struct {
// Default returns a struct with the default config.
func Default() *Config {
return &Config{
Version: Version1,
AutoscalingNodeGroupsMin: 1,
AutoscalingNodeGroupsMax: 10,
StateDiskSizeGB: 30,
@ -245,11 +253,14 @@ func FromFile(fileHandler file.Handler, name string) (*Config, error) {
}
var emptyConf Config
if err := fileHandler.ReadYAML(name, &emptyConf); err != nil {
if err := fileHandler.ReadYAMLStrict(name, &emptyConf); err != nil {
if errors.Is(err, fs.ErrNotExist) {
return nil, fmt.Errorf("unable to find %s - use `constellation config generate` to generate it first", name)
}
return nil, fmt.Errorf("could not load config from file %s: %w", name, err)
}
if emptyConf.Version != Version1 {
return nil, fmt.Errorf("config version (%s) is not supported - only version %s is supported", emptyConf.Version, Version1)
}
return &emptyConf, nil
}