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b2/s3: Move config validation from ApplyEnvironment to Open/Create

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Conceptually the backend configuration should be validated when creating
or opening the backend, but not when filling in information from
environment variables into the configuration.
This commit is contained in:
Michael Eischer
2023-06-08 15:28:07 +02:00
parent 19ac12d95b
commit 3a3cf608f5
12 changed files with 23 additions and 45 deletions
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12
internal/backend/s3/config.go
View File

@@ -97,24 +97,14 @@ func createConfig(endpoint, bucket, prefix string, useHTTP bool) (*Config, error
var _ restic.ApplyEnvironmenter = &Config{}
// ApplyEnvironment saves values from the environment to the config.
func (cfg *Config) ApplyEnvironment(prefix string) error {
func (cfg *Config) ApplyEnvironment(prefix string) {
if cfg.KeyID == "" {
cfg.KeyID = os.Getenv(prefix + "AWS_ACCESS_KEY_ID")
}
if cfg.Secret.String() == "" {
cfg.Secret = options.NewSecretString(os.Getenv(prefix + "AWS_SECRET_ACCESS_KEY"))
}
if cfg.KeyID == "" && cfg.Secret.String() != "" {
return errors.Fatalf("unable to open S3 backend: Key ID ($AWS_ACCESS_KEY_ID) is empty")
} else if cfg.KeyID != "" && cfg.Secret.String() == "" {
return errors.Fatalf("unable to open S3 backend: Secret ($AWS_SECRET_ACCESS_KEY) is empty")
}
if cfg.Region == "" {
cfg.Region = os.Getenv(prefix + "AWS_DEFAULT_REGION")
}
return nil
}

6
internal/backend/s3/s3.go
View File

@@ -41,6 +41,12 @@ const defaultLayout = "default"
func open(ctx context.Context, cfg Config, rt http.RoundTripper) (*Backend, error) {
debug.Log("open, config %#v", cfg)
if cfg.KeyID == "" && cfg.Secret.String() != "" {
return nil, errors.Fatalf("unable to open S3 backend: Key ID ($AWS_ACCESS_KEY_ID) is empty")
} else if cfg.KeyID != "" && cfg.Secret.String() == "" {
return nil, errors.Fatalf("unable to open S3 backend: Secret ($AWS_SECRET_ACCESS_KEY) is empty")
}
if cfg.MaxRetries > 0 {
minio.MaxRetry = int(cfg.MaxRetries)
}