python - 使用 AWS CloudFormation 引用创建 yaml

Question

我需要一个 python 代码来创建下面的 yaml 代码。

    Tags:
    - Key: key1
      Value: !Ref 'AWS::StackName'
    - Key: Key2
      Value: !Ref 'AWS::StackId'

这是我所拥有的，但不起作用。

def generate_resource(ami, source_data):
    resource = {
         "Type": "AWS::EC2::Instance",
         "Properties": {
             "ImageId": ami["ImageId"],
             "InstanceType": ami["InstanceType"],
             "PrivateIpAddress": ami["PrivateIpAddress"],
             "KeyName": ami["KeyName"]
             "SubnetId": { "Ref": "SubnetId" },
             "SecurityGroupIds": { "Ref":  "SecurityGroupId" }, 
             "Tags": [
                 { "Key": "key1", "Value": "{!Ref 'AWS::StackName'}"},
                 { "Key": "key2", "Value": "{!Ref 'AWS::StackId'}"}
             ]
         }
     }

此代码的 yaml 输出格式不正确，因此它只是复制 {!Ref 'AWS::StackName'} 作为值。

import os, sys
import lib.aws as aws, lib.cft as cft, lib.inventory as inventory 

BUCKET_NAME = 'testbucket'


def generate_cft(commit_hash, file_dict, dry_run):
    return (
        "# Autogenerated CFT for commit hash " + commit_hash + "\n" + 
        cft.generate(inventory.read(file_dict["path"]))
    )


def upload_cft(commit_hash, file_dict, cft_text):
    target_key = commit_hash + "/" + file_dict["name"].split("_")[0] +    ".yaml"

    aws.upload(BUCKET_NAME, target_key, cft_text)


def show_cft(file_dict, cft_text):
    print(file_dict["path"] + " generates the following cft:")
    print("")
    print(cft_text)
    print("")


def generate_and_upload(commit_hash, file_dict, dry_run):
    cft_text = generate_cft(commit_hash, file_dict, dry_run)

    aws.validate_cft(cft_text)

    if dry_run: 
        show_cft(file_dict, cft_text)
    else:
        upload_cft(commit_hash, file_dict, cft_text)


def generate_and_upload_all(commit_hash, dry_run):
    for file_dict in inventory.list():
        print("generating cft for " + file_dict["path"])
        generate_and_upload(commit_hash, file_dict, dry_run)


if __name__ == "__main__":
    if not os.getcwd().endswith("ci"):
        print("Please run this script from the ci directory")
        exit()

    commit_hash = sys.argv[1] if len(sys.argv) >= 2 else "test"
    generate_and_upload_all(commit_hash, False)

Answer 1

是的!!!我研究了一下代码并弄清楚了。这是 CFT 创建期间的语法错误。现在，当我使用生成的 CFT 创建堆栈时，标记值将被实际的“StackId”替换。感谢大家的帮助和指导。

def generate_resource(ami, source_data):
resource = {
    "Type": "AWS::EC2::Instance",
    "Properties": {
        "ImageId": ami["ImageId"],
        "InstanceType": ami["InstanceType"],
        "PrivateIpAddress": ami["PrivateIpAddress"],
        "KeyName": ami["KeyName"],
        "SubnetId": { "Ref": "SubnetId" },
        "SecurityGroupIds": { "Ref":  "SecurityGroupId" }, 
        "Tags": [
            { "Key": "Name", "Value": ami["Name"] },
            { "Key": "BootUpDependsOn", "Value": ami["BootUpDependsOn"]},
            { "Key": "WaitTimeAfterBootUp", "Value": ami["WaitTimeAfterBootUp"]},
            { "Key": "Key1", "Value": { "Ref": "AWS::StackName" }},
            { "Key": "Key2", "Value": { "Ref": "AWS::StackId" }}
        ]
    }
}