forked from hashicorp/terraform
-
Notifications
You must be signed in to change notification settings - Fork 2
/
autoscaling_tags.go
170 lines (147 loc) · 4.52 KB
/
autoscaling_tags.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
package aws
import (
"bytes"
"fmt"
"log"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/autoscaling"
"github.com/hashicorp/terraform/helper/hashcode"
"github.com/hashicorp/terraform/helper/schema"
)
// tagsSchema returns the schema to use for tags.
func autoscalingTagsSchema() *schema.Schema {
return &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Resource{
Schema: map[string]*schema.Schema{
"key": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"value": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"propagate_at_launch": &schema.Schema{
Type: schema.TypeBool,
Required: true,
},
},
},
Set: autoscalingTagsToHash,
}
}
func autoscalingTagsToHash(v interface{}) int {
var buf bytes.Buffer
m := v.(map[string]interface{})
buf.WriteString(fmt.Sprintf("%s-", m["key"].(string)))
buf.WriteString(fmt.Sprintf("%s-", m["value"].(string)))
buf.WriteString(fmt.Sprintf("%t-", m["propagate_at_launch"].(bool)))
return hashcode.String(buf.String())
}
// setTags is a helper to set the tags for a resource. It expects the
// tags field to be named "tag"
func setAutoscalingTags(conn *autoscaling.AutoScaling, d *schema.ResourceData) error {
if d.HasChange("tag") {
oraw, nraw := d.GetChange("tag")
o := setToMapByKey(oraw.(*schema.Set), "key")
n := setToMapByKey(nraw.(*schema.Set), "key")
resourceID := d.Get("name").(string)
c, r := diffAutoscalingTags(
autoscalingTagsFromMap(o, resourceID),
autoscalingTagsFromMap(n, resourceID),
resourceID)
create := autoscaling.CreateOrUpdateTagsInput{
Tags: c,
}
remove := autoscaling.DeleteTagsInput{
Tags: r,
}
// Set tags
if len(r) > 0 {
log.Printf("[DEBUG] Removing autoscaling tags: %#v", r)
if _, err := conn.DeleteTags(&remove); err != nil {
return err
}
}
if len(c) > 0 {
log.Printf("[DEBUG] Creating autoscaling tags: %#v", c)
if _, err := conn.CreateOrUpdateTags(&create); err != nil {
return err
}
}
}
return nil
}
// diffTags takes our tags locally and the ones remotely and returns
// the set of tags that must be created, and the set of tags that must
// be destroyed.
func diffAutoscalingTags(oldTags, newTags []*autoscaling.Tag, resourceID string) ([]*autoscaling.Tag, []*autoscaling.Tag) {
// First, we're creating everything we have
create := make(map[string]interface{})
for _, t := range newTags {
tag := map[string]interface{}{
"value": *t.Value,
"propagate_at_launch": *t.PropagateAtLaunch,
}
create[*t.Key] = tag
}
// Build the list of what to remove
var remove []*autoscaling.Tag
for _, t := range oldTags {
old, ok := create[*t.Key].(map[string]interface{})
if !ok || old["value"] != *t.Value || old["propagate_at_launch"] != *t.PropagateAtLaunch {
// Delete it!
remove = append(remove, t)
}
}
return autoscalingTagsFromMap(create, resourceID), remove
}
// tagsFromMap returns the tags for the given map of data.
func autoscalingTagsFromMap(m map[string]interface{}, resourceID string) []*autoscaling.Tag {
result := make([]*autoscaling.Tag, 0, len(m))
for k, v := range m {
attr := v.(map[string]interface{})
result = append(result, &autoscaling.Tag{
Key: aws.String(k),
Value: aws.String(attr["value"].(string)),
PropagateAtLaunch: aws.Bool(attr["propagate_at_launch"].(bool)),
ResourceId: aws.String(resourceID),
ResourceType: aws.String("auto-scaling-group"),
})
}
return result
}
// autoscalingTagsToMap turns the list of tags into a map.
func autoscalingTagsToMap(ts []*autoscaling.Tag) map[string]interface{} {
tags := make(map[string]interface{})
for _, t := range ts {
tag := map[string]interface{}{
"value": *t.Value,
"propagate_at_launch": *t.PropagateAtLaunch,
}
tags[*t.Key] = tag
}
return tags
}
// autoscalingTagDescriptionsToMap turns the list of tags into a map.
func autoscalingTagDescriptionsToMap(ts *[]*autoscaling.TagDescription) map[string]map[string]interface{} {
tags := make(map[string]map[string]interface{})
for _, t := range *ts {
tag := map[string]interface{}{
"value": *t.Value,
"propagate_at_launch": *t.PropagateAtLaunch,
}
tags[*t.Key] = tag
}
return tags
}
func setToMapByKey(s *schema.Set, key string) map[string]interface{} {
result := make(map[string]interface{})
for _, rawData := range s.List() {
data := rawData.(map[string]interface{})
result[data[key].(string)] = data
}
return result
}