unistack-org/cloudinit
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config: remove config validator

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This commit is contained in:
Alex Crawford 2014-10-22 11:43:26 -07:00
parent 88e8265cd6
commit 51f37100a1
2 changed files with 0 additions and 110 deletions
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86
config/config.go
View File

@ -18,7 +18,6 @@ package config
import (
"fmt"
"log"
"reflect"
"strings"
@ -68,7 +67,6 @@ func NewCloudConfig(contents string) (*CloudConfig, error) {
if err = yaml.Unmarshal(ncontents, &cfg); err != nil {
return &cfg, err
}
warnOnUnrecognizedKeys(contents, log.Printf)
return &cfg, nil
}
@ -158,90 +156,6 @@ func isFieldExported(f reflect.StructField) bool {
return f.PkgPath == ""
}
type warner func(format string, v ...interface{})
// warnOnUnrecognizedKeys parses the contents of a cloud-config file and calls
// warn(msg, key) for every unrecognized key (i.e. those not present in CloudConfig)
func warnOnUnrecognizedKeys(contents string, warn warner) {
// Generate a map of all understood cloud config options
var cc map[string]interface{}
b, _ := yaml.Marshal(&CloudConfig{})
yaml.Unmarshal(b, &cc)
// Now unmarshal the entire provided contents
var c map[string]interface{}
yaml.Unmarshal([]byte(contents), &c)
// Check that every key in the contents exists in the cloud config
for k, _ := range c {
if _, ok := cc[k]; !ok {
warn("Warning: unrecognized key %q in provided cloud config - ignoring section", k)
}
}
// Check for unrecognized coreos options, if any are set
if coreos, ok := c["coreos"]; ok {
if set, ok := coreos.(map[interface{}]interface{}); ok {
known := cc["coreos"].(map[interface{}]interface{})
for k, _ := range set {
if key, ok := k.(string); ok {
if _, ok := known[key]; !ok {
warn("Warning: unrecognized key %q in coreos section of provided cloud config - ignoring", key)
}
} else {
warn("Warning: unrecognized key %q in coreos section of provided cloud config - ignoring", k)
}
}
}
}
// Check for any badly-specified users, if any are set
if users, ok := c["users"]; ok {
var known map[string]interface{}
b, _ := yaml.Marshal(&User{})
yaml.Unmarshal(b, &known)
if set, ok := users.([]interface{}); ok {
for _, u := range set {
if user, ok := u.(map[interface{}]interface{}); ok {
for k, _ := range user {
if key, ok := k.(string); ok {
if _, ok := known[key]; !ok {
warn("Warning: unrecognized key %q in user section of cloud config - ignoring", key)
}
} else {
warn("Warning: unrecognized key %q in user section of cloud config - ignoring", k)
}
}
}
}
}
}
// Check for any badly-specified files, if any are set
if files, ok := c["write_files"]; ok {
var known map[string]interface{}
b, _ := yaml.Marshal(&File{})
yaml.Unmarshal(b, &known)
if set, ok := files.([]interface{}); ok {
for _, f := range set {
if file, ok := f.(map[interface{}]interface{}); ok {
for k, _ := range file {
if key, ok := k.(string); ok {
if _, ok := known[key]; !ok {
warn("Warning: unrecognized key %q in file section of cloud config - ignoring", key)
}
} else {
warn("Warning: unrecognized key %q in file section of cloud config - ignoring", k)
}
}
}
}
}
}
}
func normalizeConfig(config string) ([]byte, error) {
var cfg map[interface{}]interface{}
if err := yaml.Unmarshal([]byte(config), &cfg); err != nil {

24
config/config_test.go
View File

@ -17,7 +17,6 @@
package config
import (
"fmt"
"reflect"
"strings"
"testing"
@ -146,29 +145,6 @@ hostname:
if len(cfg.Users) < 1 || cfg.Users[0].Name != "fry" || cfg.Users[0].PasswordHash != "somehash" {
t.Fatalf("users section not correctly set when invalid keys are present")
}
var warnings string
catchWarn := func(f string, v ...interface{}) {
warnings += fmt.Sprintf(f, v...)
}
warnOnUnrecognizedKeys(contents, catchWarn)
if !strings.Contains(warnings, "coreos_unknown") {
t.Errorf("warnings did not catch unrecognized coreos option coreos_unknown")
}
if !strings.Contains(warnings, "bare_unknown") {
t.Errorf("warnings did not catch unrecognized key bare_unknown")
}
if !strings.Contains(warnings, "section_unknown") {
t.Errorf("warnings did not catch unrecognized key section_unknown")
}
if !strings.Contains(warnings, "user_unknown") {
t.Errorf("warnings did not catch unrecognized user key user_unknown")
}
if !strings.Contains(warnings, "file_unknown") {
t.Errorf("warnings did not catch unrecognized file key file_unknown")
}
}
// Assert that the parsing of a cloud config file "generally works"