terraform/builtin/providers/aws/resource_aws_cloudwatch_log...

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package aws
import (
"fmt"
"log"
"regexp"
"github.com/aws/aws-sdk-go/aws"
"github.com/aws/aws-sdk-go/service/cloudwatchlogs"
"github.com/hashicorp/errwrap"
"github.com/hashicorp/terraform/helper/schema"
)
func resourceAwsCloudWatchLogStream() *schema.Resource {
return &schema.Resource{
Create: resourceAwsCloudWatchLogStreamCreate,
Read: resourceAwsCloudWatchLogStreamRead,
Delete: resourceAwsCloudWatchLogStreamDelete,
Schema: map[string]*schema.Schema{
"arn": {
Type: schema.TypeString,
Computed: true,
},
"name": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
ValidateFunc: validateCloudWatchLogStreamName,
},
"log_group_name": {
Type: schema.TypeString,
Required: true,
ForceNew: true,
},
},
}
}
func resourceAwsCloudWatchLogStreamCreate(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).cloudwatchlogsconn
log.Printf("[DEBUG] Creating CloudWatch Log Stream: %s", d.Get("name").(string))
_, err := conn.CreateLogStream(&cloudwatchlogs.CreateLogStreamInput{
LogGroupName: aws.String(d.Get("log_group_name").(string)),
LogStreamName: aws.String(d.Get("name").(string)),
})
if err != nil {
return errwrap.Wrapf("Creating CloudWatch Log Stream failed: %s", err)
}
d.SetId(d.Get("name").(string))
return resourceAwsCloudWatchLogStreamRead(d, meta)
}
func resourceAwsCloudWatchLogStreamRead(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).cloudwatchlogsconn
ls, exists, err := lookupCloudWatchLogStream(conn, d.Id(), d.Get("log_group_name").(string), nil)
if err != nil {
return err
}
if !exists {
log.Printf("[DEBUG] CloudWatch Stream %q Not Found. Removing from state", d.Id())
d.SetId("")
return nil
}
d.Set("arn", ls.Arn)
d.Set("name", ls.LogStreamName)
return nil
}
func resourceAwsCloudWatchLogStreamDelete(d *schema.ResourceData, meta interface{}) error {
conn := meta.(*AWSClient).cloudwatchlogsconn
log.Printf("[INFO] Deleting CloudWatch Log Stream: %s", d.Id())
params := &cloudwatchlogs.DeleteLogStreamInput{
LogGroupName: aws.String(d.Get("log_group_name").(string)),
LogStreamName: aws.String(d.Id()),
}
_, err := conn.DeleteLogStream(params)
if err != nil {
return errwrap.Wrapf("Error deleting CloudWatch Log Stream: %s", err)
}
return nil
}
func lookupCloudWatchLogStream(conn *cloudwatchlogs.CloudWatchLogs,
name string, logStreamName string, nextToken *string) (*cloudwatchlogs.LogStream, bool, error) {
input := &cloudwatchlogs.DescribeLogStreamsInput{
LogStreamNamePrefix: aws.String(name),
LogGroupName: aws.String(logStreamName),
NextToken: nextToken,
}
resp, err := conn.DescribeLogStreams(input)
if err != nil {
return nil, true, err
}
for _, ls := range resp.LogStreams {
if *ls.LogStreamName == name {
return ls, true, nil
}
}
if resp.NextToken != nil {
return lookupCloudWatchLogStream(conn, name, logStreamName, resp.NextToken)
}
return nil, false, nil
}
func validateCloudWatchLogStreamName(v interface{}, k string) (ws []string, errors []error) {
value := v.(string)
if regexp.MustCompile(`:`).MatchString(value) {
errors = append(errors, fmt.Errorf(
"colons not allowed in %q:", k))
}
if len(value) < 1 || len(value) > 512 {
errors = append(errors, fmt.Errorf(
"%q must be between 1 and 512 characters: %q", k, value))
}
return
}