发送SNS通知给Slack

Question

我想将SNS通知发送到Slack。我收到了电子邮件通知。看起来像：

Instance: i-0f9606e41cd6f1e8e has changed state
State: running
Type: c5.4xlarge
Public IP Address: 52.32.193.26
Private IP Address: 10.10.75.168
Region: us-west-2a
Name: VOSaaS-Cluster-SaaS-Longevity-055ba27d-f7c4-b70a-0954-a08ae21ccb2d-vos-node-i-0f9606e41cd6f1e8e

但我也希望在Slack通道中收到相同的输出。我已经设置了传入的webhooks，我可以收到简单的消息，但是在发送输出方面有问题。

MY_SNS_TOPIC_ARN = 'arn:aws:sns:us-west-2:421572644019:CloudWatchAlarmsForSpotInstances'
sns_client = boto3.client('sns')
ec2_spot_info = sns_client.publish(
    TopicArn = MY_SNS_TOPIC_ARN,
    Subject = 'EC2 Spot Instances Termination Notifications',
    Message =   'Instance: ' + instance_id + ' has changed state\n' +
                'State: ' + instance['State']['Name'] + '\n' +
                'Type: ' + instance['InstanceType'] + '\n' +
                'Public IP Address: ' + instance['PublicIpAddress'] + '\n' +
                'Private IP Address: ' + instance['PrivateIpAddress'] + '\n' +
                'Region: ' + instance['Placement']['AvailabilityZone'] + '\n' +
                'Name: ' + name
)

slack_url='https://hooks.slack.com/services/+token'
slack_msg = {
                "attachments": [
                    {
                        "title": "EC2 Spot Instance Info",
                        "pretext": "EC2 Spot Instances Termination Notifications",
                        "color": "#ed1717",
                        "text": ec2_spot_info
                    }
                ]
            }
output = json.dumps(slack_msg)
r = requests.post(slack_url, data = output)

Answer 1

sns_client.publish()调用返回响应：

{
    'MessageId': 'string'
}

然而你的松弛命令正在发送这个消息：

"text": ec2_spot_info

这意味着，您发送的是包含MessageId的字典，而不是发送消息。

相反，你应该：

• 将message构造为变量
• 用sns_client.publish()打电话给Message = message
• 使用"text": message调用松弛