我是使用AWS的初学者。
我只想自动定期停止并启动几个EC2实例（不重启）。
有没有推荐的方法呢？
答案 0 :(得分：5)
亚马逊最近（2018年2月）发布了EC2实例调度工具：
AWS Instance Scheduler是AWS提供的简单解决方案 使客户能够轻松配置自定义启动和停止计划 适用于他们的Amazon Elastic Compute Cloud（Amazon EC2）和Amazon 关系数据库服务（Amazon RDS）实例。解决方案是 易于部署，有助于降低两者的运营成本 开发和生产环境。使用此的客户 在正常工作时间运行实例的解决方案可以节省多达 与每天24小时运行这些实例相比，这一比例为70％。
我在15分钟内完成了我的帐户;使用起来非常简单，实际上是免费的。
https://aws.amazon.com/answers/infrastructure-management/instance-scheduler/
答案 1 :(得分：2)
是的，您可以使用AWS Lambda执行此操作。您可以在Cloudwatch中选择在UTC上的Cron表达式上运行的触发器。
以下是相关链接https://aws.amazon.com/premiumsupport/knowledge-center/start-stop-lambda-cloudwatch/
另一种方法是使用awscli，pip，apt-get或yum提供的brew，然后运行aws configure来自IAM的凭据并执行以下bash脚本，以停止已使用Name: Appname和Value: Appname Prod标记的EC2。您可以使用awscli标记实例或从AWS控制台手动标记它。 aws ec2 stop-instances将停止实例，jq用于过滤json查询并使用aws ec2 describe-instances中的标记获取正确的实例ID。
要验证aws configure是否成功并返回json输出运行aws ec2 describe-instances，并且您的运行实例ID应该在输出中。这是一个示例输出
{
"Reservations": [
{
"Instances": [
{
"Monitoring": {
"State": "disabled"
},
"PublicDnsName": "ec2-xxx.ap-south-1.compute.amazonaws.com",
"State": {
"Code": xx,
"Name": "running"
},
"EbsOptimized": false,
"LaunchTime": "20xx-xx-xxTxx:16:xx.000Z",
"PublicIpAddress": "xx.127.24.xxx",
"PrivateIpAddress": "xxx.31.3.xxx",
"ProductCodes": [],
"VpcId": "vpc-aaxxxxx",
"StateTransitionReason": "",
"InstanceId": "i-xxxxxxxx",
"ImageId": "ami-xxxxxxx",
"PrivateDnsName": "ip-xxxx.ap-south-1.compute.internal",
"KeyName": "node",
"SecurityGroups": [
{
"GroupName": "xxxxxx",
"GroupId": "sg-xxxx"
}
],
"ClientToken": "",
"SubnetId": "subnet-xxxx",
"InstanceType": "t2.xxxxx",
"NetworkInterfaces": [
{
"Status": "in-use",
"MacAddress": "0x:xx:xx:xx:xx:xx",
"SourceDestCheck": true,
"VpcId": "vpc-xxxxxx",
"Description": "",
"NetworkInterfaceId": "eni-xxxx",
"PrivateIpAddresses": [
{
"PrivateDnsName": "ip-xx.ap-south-1.compute.internal",
"PrivateIpAddress": "xx.31.3.xxx",
"Primary": true,
"Association": {
"PublicIp": "xx.127.24.xxx",
"PublicDnsName": "ec2-xx.ap-south-1.compute.amazonaws.com",
"IpOwnerId": "xxxxx"
}
}
],
"PrivateDnsName": "ip-xxx-31-3-xxx.ap-south-1.compute.internal",
"Attachment": {
"Status": "attached",
"DeviceIndex": 0,
"DeleteOnTermination": true,
"AttachmentId": "xxx",
"AttachTime": "20xx-xx-30Txx:16:xx.000Z"
},
"Groups": [
{
"GroupName": "xxxx",
"GroupId": "sg-xxxxx"
}
],
"Ipv6Addresses": [],
"OwnerId": "xxxx",
"PrivateIpAddress": "xx.xx.xx.xxx",
"SubnetId": "subnet-xx",
"Association": {
"PublicIp": "xx.xx.xx.xxx",
"PublicDnsName": "ec2-xx.ap-south-1.compute.amazonaws.com",
"IpOwnerId": "xxxx"
}
}
],
"SourceDestCheck": true,
"Placement": {
"Tenancy": "default",
"GroupName": "",
"AvailabilityZone": "xx"
},
"Hypervisor": "xxx",
"BlockDeviceMappings": [
{
"DeviceName": "/dev/xxx",
"Ebs": {
"Status": "attached",
"DeleteOnTermination": true,
"VolumeId": "vol-xxx",
"AttachTime": "20xxx-xx-xxTxx:16:xx.000Z"
}
}
],
"Architecture": "x86_64",
"RootDeviceType": "ebs",
"RootDeviceName": "/dev/xxx",
"VirtualizationType": "xxx",
"Tags": [
{
"Value": "xxxx centxx",
"Key": "Name"
}
],
"AmiLaunchIndex": 0
}
],
"ReservationId": "r-xxxx",
"Groups": [],
"OwnerId": "xxxxx"
}
]
}
以下bash脚本在stop-ec2.sh
/home/centos/cron-scripts/
(instance=$(aws ec2 describe-instances | jq '.Reservations[].Instances | select(.[].Tags[].Value | startswith("Appname Prod") ) | select(.[].Tags[].Key == "Appname") | {InstanceId: .[].InstanceId, PublicDnsName: .[].PublicDnsName, State: .[].State, LaunchTime: .[].LaunchTime, Tags: .[].Tags} | [.]' | jq -r .[].InstanceId) && aws ec2 stop-instances --instance-ids ${instance} )
使用sh /home/centos/cron-scripts/stop-ec2.sh运行该文件，并验证EC2实例是否已停止。调试运行aws ec2 describe-instances | jq '.Reservations[].Instances | select(.[].Tags[].Value | startswith("Appname Prod") ) | select(.[].Tags[].Key == "Appname") | {InstanceId: .[].InstanceId, PublicDnsName: .[].PublicDnsName, State: .[].State, LaunchTime: .[].LaunchTime, Tags: .[].Tags} | [.]' | jq -r .[].InstanceId并查看它是否返回已标记的正确实例ID。
然后在crontab -e中可以添加以下行
30 14 * * * sh /home/centos/cron-scripts/stop-ec2.sh >> /tmp/stop
将输出记录到/tmp/stop。 30 14 * * *是您可以在https://crontab.guru/
答案 2 :(得分：2)
AWS有一个很好的文档，解释了如何使用Lambda和Cloudwatch事件实现这一目标。你可以参考它 - https://aws.amazon.com/premiumsupport/knowledge-center/start-stop-lambda-cloudwatch/
可以修改此解决方案以动态获取EC2列表，或对可以基于特定标记识别的一组实例进行操作。
答案 3 :(得分：0)
用于停止实例的Lambda脚本：
import json
import boto3
# Enter the region your instances are in. Include only the region without specifying Availability Zone; e.g., 'us-east-1'
region = 'us-east-1'
def lambda_handler(event, context):
ec2 = boto3.client('ec2', region_name=region)
filter = [{'Name': 'tag:Name', 'Values': ['****-env']}] //give instance name here in place of ****-env
instances = ec2.describe_instances(Filters=filter)
#ec2.stop_instances(InstanceIds=instances)
stop_instance = instances.get('Reservations')[0].get('Instances')[0].get('InstanceId')
stop_instances = []
stop_instances.append(stop_instance)
ec2.stop_instances(InstanceIds=stop_instances)
启动实例的Lambda脚本：
import json
import boto3
# Enter the region your instances are in. Include only the region without specifying Availability Zone; e.g., 'us-east-1'
region = 'us-east-1'
def lambda_handler(event, context):
ec2 = boto3.client('ec2', region_name=region)
filter = [{'Name': 'tag:Name', 'Values': ['****-env']}]
instances = ec2.describe_instances(Filters=filter)
#ec2.stop_instances(InstanceIds=instances)
start_instance = instances.get('Reservations')[0].get('Instances')[0].get('InstanceId')
start_instances = []
start_instances.append(start_instance)
ec2.start_instances(InstanceIds=start_instances)
答案 4 :(得分：0)
ASG调度程序是管理EC2实例的最佳和最简单的选择。如果未使用ASG，则可以将AWS实例计划程序CF解决方案或lambda与cloudwatch Cron事件一起使用。
答案 5 :(得分：0)
在GitHub上有一个名为clonesquad的项目，看起来很有趣，可以管理“宠物” EC2实例（当您必须管理宠物时...）：https://github.com/jcjorel/clonesquad/ 它看起来像是由一组Lambda函数构建的自动缩放器... 尚未测试。