terraform/builtin/providers/aws/resource_aws_cloudwatch_met...

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package aws
import (
"fmt"
"log"
"github.com/hashicorp/terraform/helper/schema"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/cloudwatch"
)
func resourceAwsCloudWatchMetricAlarm() *schema.Resource {
return &schema.Resource{
Create: resourceAwsCloudWatchMetricAlarmCreate,
Read: resourceAwsCloudWatchMetricAlarmRead,
Update: resourceAwsCloudWatchMetricAlarmUpdate,
Delete: resourceAwsCloudWatchMetricAlarmDelete,
Schema: map[string]*schema.Schema{
"alarm_name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"comparison_operator": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"evaluation_periods": &schema.Schema{
Type: schema.TypeInt,
Required: true,
},
"metric_name": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"namespace": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"period": &schema.Schema{
Type: schema.TypeInt,
Required: true,
},
"statistic": &schema.Schema{
Type: schema.TypeString,
Required: true,
},
"threshold": &schema.Schema{
Type: schema.TypeFloat,
Required: true,
},
"actions_enabled": &schema.Schema{
Type: schema.TypeBool,
Optional: true,
Default: true,
},
"alarm_actions": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Schema{Type: schema.TypeString},
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Set: schema.HashString,
},
"alarm_description": &schema.Schema{
Type: schema.TypeString,
Optional: true,
},
"dimensions": &schema.Schema{
Type: schema.TypeMap,
Optional: true,
},
"insufficient_data_actions": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Schema{Type: schema.TypeString},
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Set: schema.HashString,
},
"ok_actions": &schema.Schema{
Type: schema.TypeSet,
Optional: true,
Elem: &schema.Schema{Type: schema.TypeString},
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Set: schema.HashString,
},
"unit": &schema.Schema{
Type: schema.TypeString,
Optional: true,
},
},
}
}
func resourceAwsCloudWatchMetricAlarmCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).cloudwatchconn
params := getAwsCloudWatchPutMetricAlarmInput(d)
log.Printf("[DEBUG] Creating CloudWatch Metric Alarm: %#v", params)
_, err := conn.PutMetricAlarm(&params)
if err != nil {
return fmt.Errorf("Creating metric alarm failed: %s", err)
}
d.SetId(d.Get("alarm_name").(string))
log.Println("[INFO] CloudWatch Metric Alarm created")
return resourceAwsCloudWatchMetricAlarmRead(d, meta)
}
func resourceAwsCloudWatchMetricAlarmRead(d *schema.ResourceData, meta interface{}) error {
a, err := getAwsCloudWatchMetricAlarm(d, meta)
if err != nil {
return err
}
if a == nil {
d.SetId("")
return nil
}
log.Printf("[DEBUG] Reading CloudWatch Metric Alarm: %s", d.Get("alarm_name"))
d.Set("actions_enabled", a.ActionsEnabled)
if err := d.Set("alarm_actions", _strArrPtrToList(a.AlarmActions)); err != nil {
log.Printf("[WARN] Error setting Alarm Actions: %s", err)
}
d.Set("alarm_description", a.AlarmDescription)
d.Set("alarm_name", a.AlarmName)
d.Set("comparison_operator", a.ComparisonOperator)
d.Set("dimensions", a.Dimensions)
d.Set("evaluation_periods", a.EvaluationPeriods)
if err := d.Set("insufficient_data_actions", _strArrPtrToList(a.InsufficientDataActions)); err != nil {
log.Printf("[WARN] Error setting Insufficient Data Actions: %s", err)
}
d.Set("metric_name", a.MetricName)
d.Set("namespace", a.Namespace)
if err := d.Set("ok_actions", _strArrPtrToList(a.OKActions)); err != nil {
log.Printf("[WARN] Error setting OK Actions: %s", err)
}
d.Set("period", a.Period)
d.Set("statistic", a.Statistic)
d.Set("threshold", a.Threshold)
d.Set("unit", a.Unit)
return nil
}
func resourceAwsCloudWatchMetricAlarmUpdate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).cloudwatchconn
params := getAwsCloudWatchPutMetricAlarmInput(d)
log.Printf("[DEBUG] Updating CloudWatch Metric Alarm: %#v", params)
_, err := conn.PutMetricAlarm(&params)
if err != nil {
return fmt.Errorf("Updating metric alarm failed: %s", err)
}
log.Println("[INFO] CloudWatch Metric Alarm updated")
return resourceAwsCloudWatchMetricAlarmRead(d, meta)
}
func resourceAwsCloudWatchMetricAlarmDelete(d *schema.ResourceData, meta interface{}) error {
p, err := getAwsCloudWatchMetricAlarm(d, meta)
if err != nil {
return err
}
if p == nil {
log.Printf("[DEBUG] CloudWatch Metric Alarm %s is already gone", d.Id())
return nil
}
log.Printf("[INFO] Deleting CloudWatch Metric Alarm: %s", d.Id())
conn := meta.(*AWSClient).cloudwatchconn
params := cloudwatch.DeleteAlarmsInput{
AlarmNames: []*string{aws.String(d.Id())},
}
if _, err := conn.DeleteAlarms(&params); err != nil {
return fmt.Errorf("Error deleting CloudWatch Metric Alarm: %s", err)
}
log.Println("[INFO] CloudWatch Metric Alarm deleted")
d.SetId("")
return nil
}
func getAwsCloudWatchPutMetricAlarmInput(d *schema.ResourceData) cloudwatch.PutMetricAlarmInput {
params := cloudwatch.PutMetricAlarmInput{
AlarmName: aws.String(d.Get("alarm_name").(string)),
ComparisonOperator: aws.String(d.Get("comparison_operator").(string)),
EvaluationPeriods: aws.Int64(int64(d.Get("evaluation_periods").(int))),
MetricName: aws.String(d.Get("metric_name").(string)),
Namespace: aws.String(d.Get("namespace").(string)),
Period: aws.Int64(int64(d.Get("period").(int))),
Statistic: aws.String(d.Get("statistic").(string)),
Threshold: aws.Float64(d.Get("threshold").(float64)),
}
if v := d.Get("actions_enabled"); v != nil {
params.ActionsEnabled = aws.Bool(v.(bool))
}
if v, ok := d.GetOk("alarm_description"); ok {
params.AlarmDescription = aws.String(v.(string))
}
if v, ok := d.GetOk("unit"); ok {
params.Unit = aws.String(v.(string))
}
var alarmActions []*string
if v := d.Get("alarm_actions"); v != nil {
for _, v := range v.(*schema.Set).List() {
str := v.(string)
alarmActions = append(alarmActions, aws.String(str))
}
params.AlarmActions = alarmActions
}
var insufficientDataActions []*string
if v := d.Get("insufficient_data_actions"); v != nil {
for _, v := range v.(*schema.Set).List() {
str := v.(string)
insufficientDataActions = append(insufficientDataActions, aws.String(str))
}
params.InsufficientDataActions = insufficientDataActions
}
var okActions []*string
if v := d.Get("ok_actions"); v != nil {
for _, v := range v.(*schema.Set).List() {
str := v.(string)
okActions = append(okActions, aws.String(str))
}
params.OKActions = okActions
}
a := d.Get("dimensions").(map[string]interface{})
dimensions := make([]*cloudwatch.Dimension, 0, len(a))
for k, v := range a {
dimensions = append(dimensions, &cloudwatch.Dimension{
Name: aws.String(k),
Value: aws.String(v.(string)),
})
}
params.Dimensions = dimensions
return params
}
func getAwsCloudWatchMetricAlarm(d *schema.ResourceData, meta interface{}) (*cloudwatch.MetricAlarm, error) {
conn := meta.(*AWSClient).cloudwatchconn
params := cloudwatch.DescribeAlarmsInput{
AlarmNames: []*string{aws.String(d.Id())},
}
resp, err := conn.DescribeAlarms(&params)
if err != nil {
return nil, err
}
// Find it and return it
for idx, ma := range resp.MetricAlarms {
if *ma.AlarmName == d.Id() {
return resp.MetricAlarms[idx], nil
}
}
return nil, nil
}
func _strArrPtrToList(strArrPtr []*string) []string {
var result []string
for _, elem := range strArrPtr {
result = append(result, *elem)
}
return result
}