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troposphere

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troposphere - 创建AWS云形式描述的库

troposphere库可以通过编写Python代码来描述AWS资源来更轻松地创建AWS CloudFormation JSON。 troposphere还通过热量提供了对开放式空间资源的一些基本支持。

为了促进捕获云形式或JSON错误，图书馆具有属性和类型检查，其中内置了这些库。

安装

可以通过发出Python的PIP分配系统来安装troposphere ：

$ pip install troposphere

使用AWAC安装troposphere （建议的软依赖）：

$ pip install troposphere [policy]

另外，您可以使用setup.py通过克隆此存储库和发行来安装：

$ python setup.py install  # you may need sudo depending on your python installation

例子

创建实例的一个简单示例将看起来像这样：

troposphere import Ref, Template >>> import troposphere .ec2 as ec2 >>> t = Template() >>> instance = ec2.Instance("myinstance") >>> instance.ImageId = "ami-951945d0" >>> instance.InstanceType = "t1.micro" >>> t.add_resource(instance) < troposphere .ec2.Instance object at 0x101bf3390> >>> print(t.to_json()) { "Resources": { "myinstance": { "Properties": { "ImageId": "ami-951945d0", "InstanceType": "t1.micro" }, "Type": "AWS::EC2::Instance" } } } >>> print(t.to_yaml()) Resources: myinstance: Properties: ImageId: ami-951945d0 InstanceType: t1.micro Type: AWS::EC2::Instance">

 > >> from troposphere import Ref , Template
> >> import troposphere . ec2 as ec2
> >> t = Template ()
> >> instance = ec2 . Instance ( "myinstance" )
> >> instance . ImageId = "ami-951945d0"
> >> instance . InstanceType = "t1.micro"
> >> t . add_resource ( instance )
< troposphere . ec2 . Instance object at 0x101bf3390 >
> >> print ( t . to_json ())
{
    "Resources" : {
        "myinstance" : {
            "Properties" : {
                "ImageId" : "ami-951945d0" ,
                "InstanceType" : "t1.micro"
            },
            "Type" : "AWS::EC2::Instance"
        }
    }
}
> >> print ( t . to_yaml ())
Resources :
    myinstance :
        Properties :
            ImageId : ami - 951945 d0
            InstanceType : t1 . micro
        Type : AWS :: EC2 :: Instance

另外，可以使用参数代替属性：

 > >> instance = ec2 . Instance ( "myinstance" , ImageId = "ami-951945d0" , InstanceType = "t1.micro" )
> >> t . add_resource ( instance )
< troposphere . ec2 . Instance object at 0x101bf3550 >

and add_resource（）返回对象，使其易于与Ref（）：

 > >> instance = t . add_resource ( ec2 . Instance ( "myinstance" , ImageId = "ami-951945d0" , InstanceType = "t1.micro" ))
> >> Ref ( instance )
< troposphere . Ref object at 0x101bf3490 >

错误检查的示例（为了清楚起见，已删除了全反馈）：

在AWS资源上设置了错误的属性：

troposphere.ec2 as ec2 >>> ec2.Instance("ec2instance", image="i-XXXX") Traceback (most recent call last): ... AttributeError: AWS::EC2::Instance object does not support attribute image">

 > >> import troposphere . ec2 as ec2
> >> ec2 . Instance ( "ec2instance" , image = "i-XXXX" )
Traceback ( most recent call last ):
...
AttributeError : AWS :: EC2 :: Instance object does not support attribute image

AWS资源属性的错误类型：

 > >> ec2 . Instance ( "ec2instance" , ImageId = 1 )
Traceback ( most recent call last ):
...
TypeError : ImageId is < type 'int' > , expected < type 'basestring' >

AWS资源缺少所需的属性：

troposphere import Template >>> import troposphere .ec2 as ec2 >>> t = Template() >>> t.add_resource(ec2.Subnet("ec2subnet", VpcId="vpcid")) < troposphere .ec2.Subnet object at 0x100830ed0> >>> print(t.to_json()) Traceback (most recent call last): ... ValueError: Resource CidrBlock required in type AWS::EC2::Subnet (title: ec2subnet)">

 > >> from troposphere import Template
> >> import troposphere . ec2 as ec2
> >> t = Template ()
> >> t . add_resource ( ec2 . Subnet ( "ec2subnet" , VpcId = "vpcid" ))
< troposphere . ec2 . Subnet object at 0x100830ed0 >
> >> print ( t . to_json ())
Traceback ( most recent call last ):
...
ValueError : Resource CidrBlock required in type AWS :: EC2 :: Subnet ( title : ec2subnet )

当前支持的资源类型

AWS资源类型
OpenStack资源类型

复制单个实例样本看起来像这样

troposphere import Base64, FindInMap, GetAtt from troposphere import Parameter, Output, Ref, Template import troposphere .ec2 as ec2 template = Template() keyname_param = template.add_parameter(Parameter( "KeyName", Description="Name of an existing EC2 KeyPair to enable SSH " "access to the instance", Type="String", )) template.add_mapping('RegionMap', { "us-east-1": {"AMI": "ami-7f418316"}, "us-west-1": {"AMI": "ami-951945d0"}, "us-west-2": {"AMI": "ami-16fd7026"}, "eu-west-1": {"AMI": "ami-24506250"}, "sa-east-1": {"AMI": "ami-3e3be423"}, "ap-southeast-1": {"AMI": "ami-74dda626"}, "ap-northeast-1": {"AMI": "ami-dcfa4edd"} }) ec2_instance = template.add_resource(ec2.Instance( "Ec2Instance", ImageId=FindInMap("RegionMap", Ref("AWS::Region"), "AMI"), InstanceType="t1.micro", KeyName=Ref(keyname_param), SecurityGroups=["default"], UserData=Base64("80") )) template.add_output([ Output( "InstanceId", Description="InstanceId of the newly created EC2 instance", Value=Ref(ec2_instance), ), Output( "AZ", Description="Availability Zone of the newly created EC2 instance", Value=GetAtt(ec2_instance, "AvailabilityZone"), ), Output( "PublicIP", Description="Public IP address of the newly created EC2 instance", Value=GetAtt(ec2_instance, "PublicIp"), ), Output( "PrivateIP", Description="Private IP address of the newly created EC2 instance", Value=GetAtt(ec2_instance, "PrivateIp"), ), Output( "PublicDNS", Description="Public DNSName of the newly created EC2 instance", Value=GetAtt(ec2_instance, "PublicDnsName"), ), Output( "PrivateDNS", Description="Private DNSName of the newly created EC2 instance", Value=GetAtt(ec2_instance, "PrivateDnsName"), ), ]) print(template.to_json())">

 # Converted from EC2InstanceSample.template located at:
# http://aws.a*ma**zon.com/cloudformation/aws-cloudformation-templates/

from troposphere import Base64 , FindInMap , GetAtt
from troposphere import Parameter , Output , Ref , Template
import troposphere . ec2 as ec2


template = Template ()

keyname_param = template . add_parameter ( Parameter (
    "KeyName" ,
    Description = "Name of an existing EC2 KeyPair to enable SSH "
                "access to the instance" ,
    Type = "String" ,
))

template . add_mapping ( 'RegionMap' , {
    "us-east-1" :      { "AMI" : "ami-7f418316" },
    "us-west-1" :      { "AMI" : "ami-951945d0" },
    "us-west-2" :      { "AMI" : "ami-16fd7026" },
    "eu-west-1" :      { "AMI" : "ami-24506250" },
    "sa-east-1" :      { "AMI" : "ami-3e3be423" },
    "ap-southeast-1" : { "AMI" : "ami-74dda626" },
    "ap-northeast-1" : { "AMI" : "ami-dcfa4edd" }
})

ec2_instance = template . add_resource ( ec2 . Instance (
    "Ec2Instance" ,
    ImageId = FindInMap ( "RegionMap" , Ref ( "AWS::Region" ), "AMI" ),
    InstanceType = "t1.micro" ,
    KeyName = Ref ( keyname_param ),
    SecurityGroups = [ "default" ],
    UserData = Base64 ( "80" )
))

template . add_output ([
    Output (
        "InstanceId" ,
        Description = "InstanceId of the newly created EC2 instance" ,
        Value = Ref ( ec2_instance ),
    ),
    Output (
        "AZ" ,
        Description = "Availability Zone of the newly created EC2 instance" ,
        Value = GetAtt ( ec2_instance , "AvailabilityZone" ),
    ),
    Output (
        "PublicIP" ,
        Description = "Public IP address of the newly created EC2 instance" ,
        Value = GetAtt ( ec2_instance , "PublicIp" ),
    ),
    Output (
        "PrivateIP" ,
        Description = "Private IP address of the newly created EC2 instance" ,
        Value = GetAtt ( ec2_instance , "PrivateIp" ),
    ),
    Output (
        "PublicDNS" ,
        Description = "Public DNSName of the newly created EC2 instance" ,
        Value = GetAtt ( ec2_instance , "PublicDnsName" ),
    ),
    Output (
        "PrivateDNS" ,
        Description = "Private DNSName of the newly created EC2 instance" ,
        Value = GetAtt ( ec2_instance , "PrivateDnsName" ),
    ),
])

print ( template . to_json ())

社区

我们有一个Google组CloudTools-Dev，您可以在其中提出问题并与troposphere社区互动。总是欢迎问题和拉动请求！

许可

troposphere是根据BSD 2-CAREASE许可证获得许可的。请参阅troposphere完整许可文本的许可证。

troposphere

troposphere

关于

安装

例子

错误检查的示例（为了清楚起见，已删除了全反馈）：

当前支持的资源类型

复制单个实例样本看起来像这样

社区

许可

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