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resource_aws_cloudwatch_log_group.go
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resource_aws_cloudwatch_log_group.go
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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/cloudwatchlogs"
)
func resourceAwsCloudWatchLogGroup() *schema.Resource {
return &schema.Resource{
Create: resourceAwsCloudWatchLogGroupCreate,
Read: resourceAwsCloudWatchLogGroupRead,
Update: resourceAwsCloudWatchLogGroupUpdate,
Delete: resourceAwsCloudWatchLogGroupDelete,
Schema: map[string]*schema.Schema{
"name": &schema.Schema{
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
"retention_in_days": &schema.Schema{
Type: schema.TypeInt,
Optional: true,
Default: 0,
},
"arn": &schema.Schema{
Type: schema.TypeString,
Computed: true,
},
},
}
}
func resourceAwsCloudWatchLogGroupCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).cloudwatchlogsconn
log.Printf("[DEBUG] Creating CloudWatch Log Group: %s", d.Get("name").(string))
_, err := conn.CreateLogGroup(&cloudwatchlogs.CreateLogGroupInput{
LogGroupName: aws.String(d.Get("name").(string)),
})
if err != nil {
return fmt.Errorf("Creating CloudWatch Log Group failed: %s", err)
}
d.SetId(d.Get("name").(string))
log.Println("[INFO] CloudWatch Log Group created")
return resourceAwsCloudWatchLogGroupUpdate(d, meta)
}
func resourceAwsCloudWatchLogGroupRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).cloudwatchlogsconn
log.Printf("[DEBUG] Reading CloudWatch Log Group: %q", d.Get("name").(string))
lg, err := lookupCloudWatchLogGroup(conn, d.Get("name").(string), nil)
if err != nil {
return err
}
log.Printf("[DEBUG] Found Log Group: %#v", *lg)
d.Set("arn", *lg.Arn)
d.Set("name", *lg.LogGroupName)
if lg.RetentionInDays != nil {
d.Set("retention_in_days", *lg.RetentionInDays)
}
return nil
}
func lookupCloudWatchLogGroup(conn *cloudwatchlogs.CloudWatchLogs,
name string, nextToken *string) (*cloudwatchlogs.LogGroup, error) {
input := &cloudwatchlogs.DescribeLogGroupsInput{
LogGroupNamePrefix: aws.String(name),
NextToken: nextToken,
}
resp, err := conn.DescribeLogGroups(input)
if err != nil {
return nil, err
}
for _, lg := range resp.LogGroups {
if *lg.LogGroupName == name {
return lg, nil
}
}
if resp.NextToken != nil {
return lookupCloudWatchLogGroup(conn, name, resp.NextToken)
}
return nil, fmt.Errorf("CloudWatch Log Group %q not found", name)
}
func resourceAwsCloudWatchLogGroupUpdate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).cloudwatchlogsconn
name := d.Get("name").(string)
log.Printf("[DEBUG] Updating CloudWatch Log Group: %q", name)
if d.HasChange("retention_in_days") {
var err error
if v, ok := d.GetOk("retention_in_days"); ok {
input := cloudwatchlogs.PutRetentionPolicyInput{
LogGroupName: aws.String(name),
RetentionInDays: aws.Int64(int64(v.(int))),
}
log.Printf("[DEBUG] Setting retention for CloudWatch Log Group: %q: %s", name, input)
_, err = conn.PutRetentionPolicy(&input)
} else {
log.Printf("[DEBUG] Deleting retention for CloudWatch Log Group: %q", name)
_, err = conn.DeleteRetentionPolicy(&cloudwatchlogs.DeleteRetentionPolicyInput{
LogGroupName: aws.String(name),
})
}
return err
}
return resourceAwsCloudWatchLogGroupRead(d, meta)
}
func resourceAwsCloudWatchLogGroupDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).cloudwatchlogsconn
log.Printf("[INFO] Deleting CloudWatch Log Group: %s", d.Id())
_, err := conn.DeleteLogGroup(&cloudwatchlogs.DeleteLogGroupInput{
LogGroupName: aws.String(d.Get("name").(string)),
})
if err != nil {
return fmt.Errorf("Error deleting CloudWatch Log Group: %s", err)
}
log.Println("[INFO] CloudWatch Log Group deleted")
d.SetId("")
return nil
}