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Merge pull request #290 from crawford/yaml

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Improved YAML parsing
This commit is contained in:
Alex Crawford 2014-12-30 16:24:12 +01:00
commit 60a3377e7c
22 changed files with 431 additions and 212 deletions
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2
Godeps/Godeps.json generated
View File

@ -15,7 +15,7 @@
},
{
"ImportPath": "github.com/coreos/yaml",
"Rev": "9f9df34309c04878acc86042b16630b0f696e1de"
"Rev": "6b16a5714269b2f70720a45406b1babd947a17ef"
},
{
"ImportPath": "github.com/dotcloud/docker/pkg/netlink",

3
Godeps/_workspace/src/github.com/coreos/yaml/README.md generated vendored
View File

@ -1,3 +1,6 @@
Note: This is a fork of https://github.com/go-yaml/yaml. The following README
doesn't necessarily apply to this fork.
# YAML support for the Go language
Introduction

17
Godeps/_workspace/src/github.com/coreos/yaml/decode.go generated vendored
View File

@ -30,13 +30,15 @@ type node struct {
// Parser, produces a node tree out of a libyaml event stream.
type parser struct {
parser yaml_parser_t
event yaml_event_t
doc *node
parser yaml_parser_t
event yaml_event_t
doc *node
transform transformString
}
func newParser(b []byte) *parser {
p := parser{}
func newParser(b []byte, t transformString) *parser {
p := parser{transform: t}
if !yaml_parser_initialize(&p.parser) {
panic("Failed to initialize YAML emitter")
}
@ -175,7 +177,10 @@ func (p *parser) mapping() *node {
p.anchor(n, p.event.anchor)
p.skip()
for p.event.typ != yaml_MAPPING_END_EVENT {
n.children = append(n.children, p.parse(), p.parse())
key := p.parse()
key.value = p.transform(key.value)
value := p.parse()
n.children = append(n.children, key, value)
}
p.skip()
return n

19
Godeps/_workspace/src/github.com/coreos/yaml/decode_test.go generated vendored
View File

@ -1,8 +1,8 @@
package yaml_test
import (
"github.com/coreos/yaml"
. "gopkg.in/check.v1"
"gopkg.in/yaml.v1"
"math"
"reflect"
"strings"
@ -557,6 +557,23 @@ func (s *S) TestUnmarshalWithFalseSetterIgnoresValue(c *C) {
c.Assert(m["ghi"].value, Equals, 3)
}
func (s *S) TestUnmarshalWithTransform(c *C) {
data := `{a_b: 1, c-d: 2, e-f_g: 3, h_i-j: 4}`
expect := map[string]int{
"a_b": 1,
"c_d": 2,
"e_f_g": 3,
"h_i_j": 4,
}
m := map[string]int{}
yaml.UnmarshalMappingKeyTransform = func(i string) string {
return strings.Replace(i, "-", "_", -1)
}
err := yaml.Unmarshal([]byte(data), m)
c.Assert(err, IsNil)
c.Assert(m, DeepEquals, expect)
}
// From http://yaml.org/type/merge.html
var mergeTests = `
anchors:

2
Godeps/_workspace/src/github.com/coreos/yaml/encode_test.go generated vendored
View File

@ -7,8 +7,8 @@ import (
"strings"
"time"
"github.com/coreos/yaml"
. "gopkg.in/check.v1"
"gopkg.in/yaml.v1"
)
var marshalIntTest = 123

13
Godeps/_workspace/src/github.com/coreos/yaml/yaml.go generated vendored
View File

@ -84,7 +84,7 @@ type Getter interface {
func Unmarshal(in []byte, out interface{}) (err error) {
defer handleErr(&err)
d := newDecoder()
p := newParser(in)
p := newParser(in, UnmarshalMappingKeyTransform)
defer p.destroy()
node := p.parse()
if node != nil {
@ -146,6 +146,17 @@ func Marshal(in interface{}) (out []byte, err error) {
return
}
// UnmarshalMappingKeyTransform is a string transformation that is applied to
// each mapping key in a YAML document before it is unmarshalled. By default,
// UnmarshalMappingKeyTransform is an identity transform (no modification).
var UnmarshalMappingKeyTransform transformString = identityTransform
type transformString func(in string) (out string)
func identityTransform(in string) (out string) {
return in
}
// --------------------------------------------------------------------------
// Maintain a mapping of keys to structure field indexes

75
config/config.go
View File

@ -19,6 +19,7 @@ package config
import (
"fmt"
"reflect"
"regexp"
"strings"
"github.com/coreos/coreos-cloudinit/Godeps/_workspace/src/github.com/coreos/yaml"
@ -29,15 +30,7 @@ import (
// used for internal use) have the YAML tag '-' so that they aren't marshalled.
type CloudConfig struct {
SSHAuthorizedKeys []string `yaml:"ssh_authorized_keys"`
Coreos struct {
Etcd Etcd `yaml:"etcd"`
Flannel Flannel `yaml:"flannel"`
Fleet Fleet `yaml:"fleet"`
Locksmith Locksmith `yaml:"locksmith"`
OEM OEM `yaml:"oem"`
Update Update `yaml:"update"`
Units []Unit `yaml:"units"`
} `yaml:"coreos"`
CoreOS CoreOS `yaml:"coreos"`
WriteFiles []File `yaml:"write_files"`
Hostname string `yaml:"hostname"`
Users []User `yaml:"users"`
@ -46,6 +39,16 @@ type CloudConfig struct {
NetworkConfig string `yaml:"-"`
}
type CoreOS struct {
Etcd Etcd `yaml:"etcd"`
Flannel Flannel `yaml:"flannel"`
Fleet Fleet `yaml:"fleet"`
Locksmith Locksmith `yaml:"locksmith"`
OEM OEM `yaml:"oem"`
Update Update `yaml:"update"`
Units []Unit `yaml:"units"`
}
func IsCloudConfig(userdata string) bool {
header := strings.SplitN(userdata, "\n", 2)[0]
@ -61,15 +64,12 @@ func IsCloudConfig(userdata string) bool {
// string of YAML), returning any error encountered. It will ignore unknown
// fields but log encountering them.
func NewCloudConfig(contents string) (*CloudConfig, error) {
yaml.UnmarshalMappingKeyTransform = func(nameIn string) (nameOut string) {
return strings.Replace(nameIn, "-", "_", -1)
}
var cfg CloudConfig
ncontents, err := normalizeConfig(contents)
if err != nil {
return &cfg, err
}
if err = yaml.Unmarshal(ncontents, &cfg); err != nil {
return &cfg, err
}
return &cfg, nil
err := yaml.Unmarshal([]byte(contents), &cfg)
return &cfg, err
}
func (cc CloudConfig) String() string {
@ -92,7 +92,7 @@ func IsZero(c interface{}) bool {
type ErrorValid struct {
Value string
Valid []string
Valid string
Field string
}
@ -126,16 +126,15 @@ func AssertValid(value reflect.Value, valid string) *ErrorValid {
if valid == "" || isZero(value) {
return nil
}
vs := fmt.Sprintf("%v", value.Interface())
valids := strings.Split(valid, ",")
for _, valid := range valids {
if vs == valid {
return nil
}
if m, _ := regexp.MatchString(valid, vs); m {
return nil
}
return &ErrorValid{
Value: vs,
Valid: valids,
Valid: valid,
}
}
@ -157,31 +156,3 @@ func isZero(v reflect.Value) bool {
func isFieldExported(f reflect.StructField) bool {
return f.PkgPath == ""
}
func normalizeConfig(config string) ([]byte, error) {
var cfg map[interface{}]interface{}
if err := yaml.Unmarshal([]byte(config), &cfg); err != nil {
return nil, err
}
return yaml.Marshal(normalizeKeys(cfg))
}
func normalizeKeys(m map[interface{}]interface{}) map[interface{}]interface{} {
for k, v := range m {
if m, ok := m[k].(map[interface{}]interface{}); ok {
normalizeKeys(m)
}
if s, ok := m[k].([]interface{}); ok {
for _, e := range s {
if m, ok := e.(map[interface{}]interface{}); ok {
normalizeKeys(m)
}
}
}
delete(m, k)
m[strings.Replace(fmt.Sprint(k), "-", "_", -1)] = v
}
return m
}

210
config/config_test.go
View File

@ -18,13 +18,67 @@ package config
import (
"reflect"
"regexp"
"strings"
"testing"
)
func TestNewCloudConfig(t *testing.T) {
tests := []struct {
contents string
config CloudConfig
}{
{},
{
contents: "#cloud-config\nwrite_files:\n - path: underscore",
config: CloudConfig{WriteFiles: []File{File{Path: "underscore"}}},
},
{
contents: "#cloud-config\nwrite-files:\n - path: hyphen",
config: CloudConfig{WriteFiles: []File{File{Path: "hyphen"}}},
},
{
contents: "#cloud-config\ncoreos:\n update:\n reboot-strategy: off",
config: CloudConfig{CoreOS: CoreOS{Update: Update{RebootStrategy: "off"}}},
},
{
contents: "#cloud-config\ncoreos:\n update:\n reboot-strategy: false",
config: CloudConfig{CoreOS: CoreOS{Update: Update{RebootStrategy: "false"}}},
},
{
contents: "#cloud-config\nwrite_files:\n - permissions: 0744",
config: CloudConfig{WriteFiles: []File{File{RawFilePermissions: "0744"}}},
},
{
contents: "#cloud-config\nwrite_files:\n - permissions: 744",
config: CloudConfig{WriteFiles: []File{File{RawFilePermissions: "744"}}},
},
{
contents: "#cloud-config\nwrite_files:\n - permissions: '0744'",
config: CloudConfig{WriteFiles: []File{File{RawFilePermissions: "0744"}}},
},
{
contents: "#cloud-config\nwrite_files:\n - permissions: '744'",
config: CloudConfig{WriteFiles: []File{File{RawFilePermissions: "744"}}},
},
}
for i, tt := range tests {
config, err := NewCloudConfig(tt.contents)
if err != nil {
t.Errorf("bad error (test case #%d): want %v, got %s", i, nil, err)
}
if !reflect.DeepEqual(&tt.config, config) {
t.Errorf("bad config (test case #%d): want %#v, got %#v", i, tt.config, config)
}
}
}
func TestIsZero(t *testing.T) {
for _, tt := range []struct {
c interface{}
tests := []struct {
c interface{}
empty bool
}{
{struct{}{}, true},
@ -34,7 +88,9 @@ func TestIsZero(t *testing.T) {
{struct{ A string }{A: "hello"}, false},
{struct{ A int }{}, true},
{struct{ A int }{A: 1}, false},
} {
}
for _, tt := range tests {
if empty := IsZero(tt.c); tt.empty != empty {
t.Errorf("bad result (%q): want %t, got %t", tt.c, tt.empty, empty)
}
@ -42,66 +98,68 @@ func TestIsZero(t *testing.T) {
}
func TestAssertStructValid(t *testing.T) {
for _, tt := range []struct {
c interface{}
tests := []struct {
c interface{}
err error
}{
{struct{}{}, nil},
{struct {
A, b string `valid:"1,2"`
A, b string `valid:"^1|2$"`
}{}, nil},
{struct {
A, b string `valid:"1,2"`
A, b string `valid:"^1|2$"`
}{A: "1", b: "2"}, nil},
{struct {
A, b string `valid:"1,2"`
A, b string `valid:"^1|2$"`
}{A: "1", b: "hello"}, nil},
{struct {
A, b string `valid:"1,2"`
}{A: "hello", b: "2"}, &ErrorValid{Value: "hello", Field: "A", Valid: []string{"1", "2"}}},
A, b string `valid:"^1|2$"`
}{A: "hello", b: "2"}, &ErrorValid{Value: "hello", Field: "A", Valid: "^1|2$"}},
{struct {
A, b int `valid:"1,2"`
A, b int `valid:"^1|2$"`
}{}, nil},
{struct {
A, b int `valid:"1,2"`
A, b int `valid:"^1|2$"`
}{A: 1, b: 2}, nil},
{struct {
A, b int `valid:"1,2"`
A, b int `valid:"^1|2$"`
}{A: 1, b: 9}, nil},
{struct {
A, b int `valid:"1,2"`
}{A: 9, b: 2}, &ErrorValid{Value: "9", Field: "A", Valid: []string{"1", "2"}}},
} {
A, b int `valid:"^1|2$"`
}{A: 9, b: 2}, &ErrorValid{Value: "9", Field: "A", Valid: "^1|2$"}},
}
for _, tt := range tests {
if err := AssertStructValid(tt.c); !reflect.DeepEqual(tt.err, err) {
t.Errorf("bad result (%q): want %q, got %q", tt.c, tt.err, err)
}
}
}
func TestCloudConfigInvalidKeys(t *testing.T) {
defer func() {
if r := recover(); r != nil {
t.Fatalf("panic while instantiating CloudConfig with nil keys: %v", r)
}
}()
func TestConfigCompile(t *testing.T) {
tests := []interface{}{
Etcd{},
File{},
Flannel{},
Fleet{},
Locksmith{},
OEM{},
Unit{},
Update{},
}
for _, tt := range []struct {
contents string
}{
{"coreos:"},
{"ssh_authorized_keys:"},
{"ssh_authorized_keys:\n -"},
{"ssh_authorized_keys:\n - 0:"},
{"write_files:"},
{"write_files:\n -"},
{"write_files:\n - 0:"},
{"users:"},
{"users:\n -"},
{"users:\n - 0:"},
} {
_, err := NewCloudConfig(tt.contents)
if err != nil {
t.Fatalf("error instantiating CloudConfig with invalid keys: %v", err)
for _, tt := range tests {
ttt := reflect.TypeOf(tt)
for i := 0; i < ttt.NumField(); i++ {
ft := ttt.Field(i)
if !isFieldExported(ft) {
continue
}
if _, err := regexp.Compile(ft.Tag.Get("valid")); err != nil {
t.Errorf("bad regexp(%s.%s): want %v, got %s", ttt.Name(), ft.Name, nil, err)
}
}
}
}
@ -136,7 +194,7 @@ hostname:
if cfg.Hostname != "foo" {
t.Fatalf("hostname not correctly set when invalid keys are present")
}
if cfg.Coreos.Etcd.Discovery != "https://discovery.etcd.io/827c73219eeb2fa5530027c37bf18877" {
if cfg.CoreOS.Etcd.Discovery != "https://discovery.etcd.io/827c73219eeb2fa5530027c37bf18877" {
t.Fatalf("etcd section not correctly set when invalid keys are present")
}
if len(cfg.WriteFiles) < 1 || cfg.WriteFiles[0].Content != "fun" || cfg.WriteFiles[0].Path != "/var/party" {
@ -242,10 +300,10 @@ hostname: trontastic
}
}
if len(cfg.Coreos.Units) != 1 {
if len(cfg.CoreOS.Units) != 1 {
t.Error("Failed to parse correct number of units")
} else {
u := cfg.Coreos.Units[0]
u := cfg.CoreOS.Units[0]
expect := `[Match]
Name=eth47
@ -263,50 +321,16 @@ Address=10.209.171.177/19
}
}
if cfg.Coreos.OEM.ID != "rackspace" {
t.Errorf("Failed parsing coreos.oem. Expected ID 'rackspace', got %q.", cfg.Coreos.OEM.ID)
if cfg.CoreOS.OEM.ID != "rackspace" {
t.Errorf("Failed parsing coreos.oem. Expected ID 'rackspace', got %q.", cfg.CoreOS.OEM.ID)
}
if cfg.Hostname != "trontastic" {
t.Errorf("Failed to parse hostname")
}
if cfg.Coreos.Update.RebootStrategy != "reboot" {
if cfg.CoreOS.Update.RebootStrategy != "reboot" {
t.Errorf("Failed to parse locksmith strategy")
}
contents = `
coreos:
write_files:
- path: /home/me/notes
permissions: 0744
`
cfg, err = NewCloudConfig(contents)
if err != nil {
t.Fatalf("Encountered unexpected error :%v", err)
}
if len(cfg.WriteFiles) != 1 {
t.Error("Failed to parse correct number of write_files")
} else {
wf := cfg.WriteFiles[0]
if wf.Content != "" {
t.Errorf("WriteFile has incorrect contents '%s'", wf.Content)
}
if wf.Encoding != "" {
t.Errorf("WriteFile has incorrect encoding %s", wf.Encoding)
}
// Verify that the normalization of the config converted 0744 to its decimal
// representation, 484.
if wf.RawFilePermissions != "484" {
t.Errorf("WriteFile has incorrect permissions %s", wf.RawFilePermissions)
}
if wf.Path != "/home/me/notes" {
t.Errorf("WriteFile has incorrect path %s", wf.Path)
}
if wf.Owner != "" {
t.Errorf("WriteFile has incorrect owner %s", wf.Owner)
}
}
}
// Assert that our interface conversion doesn't panic
@ -473,31 +497,3 @@ users:
t.Errorf("ssh import url is %q, expected 'https://token:x-auth-token@github.enterprise.com/api/v3/polvi/keys'", user.SSHImportURL)
}
}
func TestNormalizeKeys(t *testing.T) {
for _, tt := range []struct {
in string
out string
}{
{"my_key_name: the-value\n", "my_key_name: the-value\n"},
{"my-key_name: the-value\n", "my_key_name: the-value\n"},
{"my-key-name: the-value\n", "my_key_name: the-value\n"},
{"a:\n- key_name: the-value\n", "a:\n- key_name: the-value\n"},
{"a:\n- key-name: the-value\n", "a:\n- key_name: the-value\n"},
{"a:\n b:\n - key_name: the-value\n", "a:\n b:\n - key_name: the-value\n"},
{"a:\n b:\n - key-name: the-value\n", "a:\n b:\n - key_name: the-value\n"},
{"coreos:\n update:\n reboot-strategy: off\n", "coreos:\n update:\n reboot_strategy: false\n"},
{"coreos:\n update:\n reboot-strategy: 'off'\n", "coreos:\n update:\n reboot_strategy: \"off\"\n"},
} {
out, err := normalizeConfig(tt.in)
if err != nil {
t.Fatalf("bad error (%q): want nil, got %s", tt.in, err)
}
if string(out) != tt.out {
t.Fatalf("bad normalization (%q): want %q, got %q", tt.in, tt.out, out)
}
}
}

4
config/file.go
View File

@ -17,9 +17,9 @@
package config
type File struct {
Encoding string `yaml:"encoding" valid:"base64,b64,gz,gzip,gz+base64,gzip+base64,gz+b64,gzip+b64"`
Encoding string `yaml:"encoding" valid:"^(base64|b64|gz|gzip|gz\\+base64|gzip\\+base64|gz\\+b64|gzip\\+b64)$"`
Content string `yaml:"content"`
Owner string `yaml:"owner"`
Path string `yaml:"path"`
RawFilePermissions string `yaml:"permissions"`
RawFilePermissions string `yaml:"permissions" valid:"^0?[0-7]{3,4}$"`
}

71
config/file_test.go Normal file
View File

@ -0,0 +1,71 @@
/*
Copyright 2014 CoreOS, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package config
import (
"testing"
)
func TestEncodingValid(t *testing.T) {
tests := []struct {
value string
isValid bool
}{
{value: "base64", isValid: true},
{value: "b64", isValid: true},
{value: "gz", isValid: true},
{value: "gzip", isValid: true},
{value: "gz+base64", isValid: true},
{value: "gzip+base64", isValid: true},
{value: "gz+b64", isValid: true},
{value: "gzip+b64", isValid: true},
{value: "gzzzzbase64", isValid: false},
{value: "gzipppbase64", isValid: false},
{value: "unknown", isValid: false},
}
for _, tt := range tests {
isValid := (nil == AssertStructValid(File{Encoding: tt.value}))
if tt.isValid != isValid {
t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
}
}
}
func TestRawFilePermissionsValid(t *testing.T) {
tests := []struct {
value string
isValid bool
}{
{value: "744", isValid: true},
{value: "0744", isValid: true},
{value: "1744", isValid: true},
{value: "01744", isValid: true},
{value: "11744", isValid: false},
{value: "rwxr--r--", isValid: false},
{value: "800", isValid: false},
}
for _, tt := range tests {
isValid := (nil == AssertStructValid(File{RawFilePermissions: tt.value}))
if tt.isValid != isValid {
t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
}
}
}

2
config/unit.go
View File

@ -22,7 +22,7 @@ type Unit struct {
Enable bool `yaml:"enable"`
Runtime bool `yaml:"runtime"`
Content string `yaml:"content"`
Command string `yaml:"command" valid:"start,stop,restart,reload,try-restart,reload-or-restart,reload-or-try-restart"`
Command string `yaml:"command" valid:"^(start|stop|restart|reload|try-restart|reload-or-restart|reload-or-try-restart)$"`
DropIns []UnitDropIn `yaml:"drop_ins"`
}

46
config/unit_test.go Normal file
View File

@ -0,0 +1,46 @@
/*
Copyright 2014 CoreOS, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package config
import (
"testing"
)
func TestCommandValid(t *testing.T) {
tests := []struct {
value string
isValid bool
}{
{value: "start", isValid: true},
{value: "stop", isValid: true},
{value: "restart", isValid: true},
{value: "reload", isValid: true},
{value: "try-restart", isValid: true},
{value: "reload-or-restart", isValid: true},
{value: "reload-or-try-restart", isValid: true},
{value: "tryrestart", isValid: false},
{value: "unknown", isValid: false},
}
for _, tt := range tests {
isValid := (nil == AssertStructValid(Unit{Command: tt.value}))
if tt.isValid != isValid {
t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
}
}
}

2
config/update.go
View File

@ -17,7 +17,7 @@
package config
type Update struct {
RebootStrategy string `yaml:"reboot_strategy" env:"REBOOT_STRATEGY" valid:"best-effort,etcd-lock,reboot,off,false"`
RebootStrategy string `yaml:"reboot_strategy" env:"REBOOT_STRATEGY" valid:"^(best-effort|etcd-lock|reboot|off)$"`
Group string `yaml:"group" env:"GROUP"`
Server string `yaml:"server" env:"SERVER"`
}

43
config/update_test.go Normal file
View File

@ -0,0 +1,43 @@
/*
Copyright 2014 CoreOS, Inc.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package config
import (
"testing"
)
func TestRebootStrategyValid(t *testing.T) {
tests := []struct {
value string
isValid bool
}{
{value: "best-effort", isValid: true},
{value: "etcd-lock", isValid: true},
{value: "reboot", isValid: true},
{value: "off", isValid: true},
{value: "besteffort", isValid: false},
{value: "unknown", isValid: false},
}
for _, tt := range tests {
isValid := (nil == AssertStructValid(Update{RebootStrategy: tt.value}))
if tt.isValid != isValid {
t.Errorf("bad assert (%s): want %t, got %t", tt.value, tt.isValid, isValid)
}
}
}

2
config/validate/rules.go
View File

@ -76,7 +76,7 @@ func checkValidity(cfg node, report *Report) {
func checkNodeValidity(n, g node, r *Report) {
if err := config.AssertValid(n.Value, g.field.Tag.Get("valid")); err != nil {
r.Error(n.line, fmt.Sprintf("invalid value %v", n.Value))
r.Error(n.line, fmt.Sprintf("invalid value %v", n.Value.Interface()))
}
switch g.Kind() {
case reflect.Struct:

66
config/validate/validate.go
View File

@ -65,7 +65,6 @@ func validateCloudConfig(config []byte, rules []rule) (report Report, err error)
return report, err
}
c = normalizeNodeNames(c, &report)
for _, r := range rules {
r(c, &report)
}
@ -75,30 +74,79 @@ func validateCloudConfig(config []byte, rules []rule) (report Report, err error)
// parseCloudConfig parses the provided config into a node structure and logs
// any parsing issues into the provided report. Unrecoverable errors are
// returned as an error.
func parseCloudConfig(config []byte, report *Report) (n node, err error) {
var raw map[interface{}]interface{}
if err := yaml.Unmarshal(config, &raw); err != nil {
func parseCloudConfig(cfg []byte, report *Report) (node, error) {
yaml.UnmarshalMappingKeyTransform = func(nameIn string) (nameOut string) {
return nameIn
}
// unmarshal the config into an implicitly-typed form. The yaml library
// will implicitly convert types into their normalized form
// (e.g. 0744 -> 484, off -> false).
var weak map[interface{}]interface{}
if err := yaml.Unmarshal(cfg, &weak); err != nil {
matches := yamlLineError.FindStringSubmatch(err.Error())
if len(matches) == 3 {
line, err := strconv.Atoi(matches[1])
if err != nil {
return n, err
return node{}, err
}
msg := matches[2]
report.Error(line, msg)
return n, nil
return node{}, nil
}
matches = yamlError.FindStringSubmatch(err.Error())
if len(matches) == 2 {
report.Error(1, matches[1])
return n, nil
return node{}, nil
}
return n, errors.New("couldn't parse yaml error")
return node{}, errors.New("couldn't parse yaml error")
}
w := NewNode(weak, NewContext(cfg))
w = normalizeNodeNames(w, report)
// unmarshal the config into the explicitly-typed form.
yaml.UnmarshalMappingKeyTransform = func(nameIn string) (nameOut string) {
return strings.Replace(nameIn, "-", "_", -1)
}
var strong config.CloudConfig
if err := yaml.Unmarshal([]byte(cfg), &strong); err != nil {
return node{}, err
}
s := NewNode(strong, NewContext(cfg))
// coerceNodes weak nodes and strong nodes. strong nodes replace weak nodes
// if they are compatible types (this happens when the yaml library
// converts the input).
// (e.g. weak 484 is replaced by strong 0744, weak 4 is not replaced by
// strong false)
return coerceNodes(w, s), nil
}
// coerceNodes recursively evaluates two nodes, returning a new node containing
// either the weak or strong node's value and its recursively processed
// children. The strong node's value is used if the two nodes are leafs, are
// both valid, and are compatible types (defined by isCompatible()). The weak
// node is returned in all other cases. coerceNodes is used to counteract the
// effects of yaml's automatic type conversion. The weak node is the one
// resulting from unmarshalling into an empty interface{} (the type is
// inferred). The strong node is the one resulting from unmarshalling into a
// struct. If the two nodes are of compatible types, the yaml library correctly
// parsed the value into the strongly typed unmarshalling. In this case, we
// prefer the strong node because its actually the type we are expecting.
func coerceNodes(w, s node) node {
n := w
n.children = nil
if len(w.children) == 0 && len(s.children) == 0 &&
w.IsValid() && s.IsValid() &&
isCompatible(w.Kind(), s.Kind()) {
n.Value = s.Value
}
return NewNode(raw, NewContext(config)), nil
for _, cw := range w.children {
n.children = append(n.children, coerceNodes(cw, s.Child(cw.name)))
}
return n
}
// normalizeNodeNames replaces all occurences of '-' with '_' within key names

25
config/validate/validate_test.go
View File

@ -65,6 +65,31 @@ func TestValidateCloudConfig(t *testing.T) {
rules: []rule{func(_ node, _ *Report) { panic("something happened") }},
err: errors.New("something happened"),
},
{
config: "write_files:\n - permissions: 0744",
rules: Rules,
},
{
config: "write_files:\n - permissions: '0744'",
rules: Rules,
},
{
config: "write_files:\n - permissions: 744",
rules: Rules,
},
{
config: "write_files:\n - permissions: '744'",
rules: Rules,
},
{
config: "coreos:\n update:\n reboot-strategy: off",
rules: Rules,
},
{
config: "coreos:\n update:\n reboot-strategy: false",
rules: Rules,
report: Report{entries: []Entry{{entryError, "invalid value false", 3}}},
},
}
for _, tt := range tests {

16
initialize/config.go
View File

@ -110,10 +110,10 @@ func Apply(cfg config.CloudConfig, env *Environment) error {
}
for _, ccf := range []CloudConfigFile{
system.OEM{OEM: cfg.Coreos.OEM},
system.Update{Update: cfg.Coreos.Update, ReadConfig: system.DefaultReadConfig},
system.OEM{OEM: cfg.CoreOS.OEM},
system.Update{Update: cfg.CoreOS.Update, ReadConfig: system.DefaultReadConfig},
system.EtcHosts{EtcHosts: cfg.ManageEtcHosts},
system.Flannel{Flannel: cfg.Coreos.Flannel},
system.Flannel{Flannel: cfg.CoreOS.Flannel},
} {
f, err := ccf.File()
if err != nil {
@ -125,15 +125,15 @@ func Apply(cfg config.CloudConfig, env *Environment) error {
}
var units []system.Unit
for _, u := range cfg.Coreos.Units {
for _, u := range cfg.CoreOS.Units {
units = append(units, system.Unit{Unit: u})
}
for _, ccu := range []CloudConfigUnit{
system.Etcd{Etcd: cfg.Coreos.Etcd},
system.Fleet{Fleet: cfg.Coreos.Fleet},
system.Locksmith{Locksmith: cfg.Coreos.Locksmith},
system.Update{Update: cfg.Coreos.Update, ReadConfig: system.DefaultReadConfig},
system.Etcd{Etcd: cfg.CoreOS.Etcd},
system.Fleet{Fleet: cfg.CoreOS.Fleet},
system.Locksmith{Locksmith: cfg.CoreOS.Locksmith},
system.Update{Update: cfg.CoreOS.Update, ReadConfig: system.DefaultReadConfig},
} {
units = append(units, ccu.Units()...)
}

2
system/file.go
View File

@ -43,7 +43,7 @@ func (f *File) Permissions() (os.FileMode, error) {
}
// Parse string representation of file mode as integer
perm, err := strconv.ParseInt(f.RawFilePermissions, 0, 32)
perm, err := strconv.ParseInt(f.RawFilePermissions, 8, 32)
if err != nil {
return 0, fmt.Errorf("Unable to parse file permissions %q as integer", f.RawFilePermissions)
}

2
system/file_test.go
View File

@ -97,7 +97,7 @@ func TestDecimalFilePermissions(t *testing.T) {
wf := File{config.File{
Path: fn,
RawFilePermissions: "484", // Decimal representation of 0744
RawFilePermissions: "744",
}}
path, err := WriteFile(&wf, dir)

2
system/update.go
View File

@ -126,7 +126,7 @@ func (uc Update) Units() []Unit {
Runtime: true,
}}
if uc.Update.RebootStrategy == "false" || uc.Update.RebootStrategy == "off" {
if uc.Update.RebootStrategy == "off" {
ls.Command = "stop"
ls.Mask = true
}

19
system/update_test.go
View File

@ -71,15 +71,6 @@ func TestUpdateUnits(t *testing.T) {
Runtime: true,
}}},
},
{
config: config.Update{RebootStrategy: "false"},
units: []Unit{{config.Unit{
Name: "locksmithd.service",
Command: "stop",
Runtime: true,
Mask: true,
}}},
},
{
config: config.Update{RebootStrategy: "off"},
units: []Unit{{config.Unit{
@ -109,7 +100,7 @@ func TestUpdateFile(t *testing.T) {
},
{
config: config.Update{RebootStrategy: "wizzlewazzle"},
err: &config.ErrorValid{Value: "wizzlewazzle", Field: "RebootStrategy", Valid: []string{"best-effort", "etcd-lock", "reboot", "off", "false"}},
err: &config.ErrorValid{Value: "wizzlewazzle", Field: "RebootStrategy", Valid: "^(best-effort|etcd-lock|reboot|off)$"},
},
{
config: config.Update{Group: "master", Server: "http://foo.com"},
@ -143,14 +134,6 @@ func TestUpdateFile(t *testing.T) {
RawFilePermissions: "0644",
}},
},
{
config: config.Update{RebootStrategy: "false"},
file: &File{config.File{
Content: "REBOOT_STRATEGY=false\n",
Path: "etc/coreos/update.conf",
RawFilePermissions: "0644",
}},
},
{
config: config.Update{RebootStrategy: "off"},
file: &File{config.File{