脚本管理AWS EC2
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2023-12-25 21:52:40
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这里使用python SDK boto3，文档：
https://aws.amazon.com/sdk-for-python/
https://boto3.amazonaws.com/v1/documentation/api/latest/guide/quickstart.html
¶ 安装
¶ 配置
cd
mkdir .aws
vim ~/.aws/credentials
|
[default]
aws_access_key_id = YOUR_ACCESS_KEY
aws_secret_access_key = YOUR_SECRET_KEY
region=ap-northeast-1
|
然后进入AWS EC2 console，点击右上角的下拉框，点击里面的security
credentials，在里面创建access key和对应的secret key，其中secret
key只在创建的时候显示，一定要妥善保存，丢失后只能再创建一个新的。
官方示例：https://boto3.amazonaws.com/v1/documentation/api/latest/guide/ec2-example-managing-instances.html
import boto3
client = boto3.client('ec2')
|
下面介绍一些常用的。
import json5
response = client.describe_instances(
InstanceIds=[
sys.argv[1],
],
)
print(json5.dumps(
response,
indent=4,
default=str
))
|
¶ 打印private
IP
response = client.describe_instances(
InstanceIds=[
sys.argv[1],
],
)
response = response['Reservations']
assert len(response) == 1
response = response[0]
instances = response['Instances']
assert len(instances) == 1
instance = instances[0]
print(instance['PrivateIpAddress'])
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¶
打印instance个数
response = client.describe_instances(
Filters=[
{
'Name': 'instance-state-name',
'Values': [
'pending',
'running',
'shutting-down',
'stopping',
'stopped',
]
},
],
)
reservations = response['Reservations']
print(len(reservations))
for reservation in reservations:
assert len(reservation['Instances']) == 1
|
创建实例。
response = client.run_instances(
BlockDeviceMappings=[
{
'DeviceName': '/dev/nvme0n1',
'Ebs': {
'DeleteOnTermination': True,
'Iops': 16000,
'VolumeSize': 512,
'VolumeType': 'gp3',
'Throughput': 600,
'Encrypted': False
},
},
],
ImageId='ami-08c2888d01ed84209',
InstanceType='i4i.2xlarge',
KeyName='string',
MinCount=1,
MaxCount=1,
SecurityGroupIds=[
'string',
],
TagSpecifications=[
{
'ResourceType': 'instance',
'Tags': [
{
'Key': 'Name',
'Value': '实例名',
},
],
},
],
EbsOptimized=True,
)
assert len(response['Instances']) == 1
instance = response['Instances'][0]
print(instance['InstanceId'])
|
但是似乎不能设置hostname。
在使用前先用下面介绍的wait_until_exists等待instance成功创建，不然会报instance不存在的错误。
import boto3
ec2 = boto3.resource('ec2')
instance = ec2.Instance('id')
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instance.wait_until_exists()
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来源：https://stackoverflow.com/questions/19054081/ec2-waiting-until-a-new-instance-is-in-running-state
client.terminate_instances(
InstanceIds=[
'string',
],
)
|