func (p *environProvider) Validate(cfg, old *config.Config) (valid *config.Config, err error) {
// Check for valid changes for the base config values.
if err := config.Validate(cfg, old); err != nil {
return nil, err
}
validated, err := cfg.ValidateUnknownAttrs(configFields, configDefaults)
if err != nil {
return nil, err
}
if idStr, ok := validated["state-id"].(string); ok {
if _, err := strconv.Atoi(idStr); err != nil {
return nil, fmt.Errorf("invalid state-id %q", idStr)
}
}
// Apply the coerced unknown values back into the config.
return cfg.Apply(validated)
}
func (s *ConfigSuite) TestValidateChange(c *gc.C) {
files := []testing.TestFile{
{".ssh/identity.pub", "identity"},
}
s.FakeHomeSuite.Home.AddFiles(c, files...)
for i, test := range validationTests {
c.Logf("test %d: %s", i, test.about)
newConfig := newTestConfig(c, test.new)
oldConfig := newTestConfig(c, test.old)
err := config.Validate(newConfig, oldConfig)
if test.err == "" {
c.Check(err, gc.IsNil)
} else {
c.Check(err, gc.ErrorMatches, test.err)
}
}
}
func (p manualProvider) validate(cfg, old *config.Config) (*environConfig, error) {
// Check for valid changes for the base config values.
if err := config.Validate(cfg, old); err != nil {
return nil, err
}
validated, err := cfg.ValidateUnknownAttrs(configFields, configDefaults)
if err != nil {
return nil, err
}
envConfig := newEnvironConfig(cfg, validated)
if envConfig.bootstrapHost() == "" {
return nil, errNoBootstrapHost
}
// Check various immutable attributes.
if old != nil {
oldEnvConfig, err := p.validate(old, nil)
if err != nil {
return nil, err
}
for _, key := range [...]string{
"bootstrap-user",
"bootstrap-host",
"storage-listen-ip",
} {
if err = checkImmutableString(envConfig, oldEnvConfig, key); err != nil {
return nil, err
}
}
oldPort, newPort := oldEnvConfig.storagePort(), envConfig.storagePort()
if oldPort != newPort {
return nil, fmt.Errorf("cannot change storage-port from %q to %q", oldPort, newPort)
}
oldUseSSHStorage, newUseSSHStorage := oldEnvConfig.useSSHStorage(), envConfig.useSSHStorage()
if oldUseSSHStorage != newUseSSHStorage && newUseSSHStorage == true {
return nil, fmt.Errorf("cannot change use-sshstorage from %v to %v", oldUseSSHStorage, newUseSSHStorage)
}
}
return envConfig, nil
}