我正在使用平台条件来控制在AWS上启动的环境类型。有很多共享资源,但我需要某些EC2实例和预先设置的AMI,具体取决于数量条件。
"Parameters": {
"Platform": {
"Description": "Select platform type - linux or windows",
"Default": "linux",
"Type": "String",
"AllowedValues": [ "linux", "windows", "both" ],
"ConstraintDescription": "Must enter either linux, windows, or both"
},
然后我设置conditions
。
"Conditions" : {
"LinuxPlatform" : {"Fn::Equals" : [{"Ref" : "Platform"}, "linux"]},
"WindowsPlatform" : {"Fn::Equals" : [{"Ref" : "Platform"}, "windows"]},
"BothPlatform" : {"Fn::Equals" : [{"Ref" : "Platform"}, "both"]}
},
在资源中,我想使用linux或windows来触发Windows或Linux Ec2创建,或者使用它们来部署所有声明的ec2资源。
我在几个方面使用fn:or
尝试了以下内容。
"Fn::Or": [{"Condition": "LinuxPlatform"}, {"Condition": "BothPlatform" }],
和...
"Condition" : {
"Fn::Or" : [
{"Condition" : "LinuxPlatform"},
{"Condition" : "BothPlatform"}
]
}
尝试使用aws cli进行部署和验证时,我一直收到以下错误。
aws cloudformation validate-template --template-body file://./cloudformation/deploy.json
A client error (ValidationError) occurred when calling the ValidateTemplate operation: Template format error: Every Condition member must be a string.
是否可以评估多个条件来控制资源创建?如果没有,我可以尝试其他替代方案吗?
答案 0 :(得分:8)
尝试添加
"MyCondition": {"Fn::Or": [{"Condition": "LinuxPlatform"}, {"Condition": "BothPlatform" }]}
到Conditions
的底部,就像那样:
"Conditions" : {
"LinuxPlatform" : {"Fn::Equals" : [{"Ref" : "Platform"}, "linux"]},
"WindowsPlatform" : {"Fn::Equals" : [{"Ref" : "Platform"}, "windows"]},
"BothPlatform" : {"Fn::Equals" : [{"Ref" : "Platform"}, "both"]},
"MyCondition": {"Fn::Or": [{"Condition": "LinuxPlatform"}, {"Condition": "BothPlatform" }]}
},
答案 1 :(得分:0)
我一直在寻找YAML格式的不同场景下的同一件事。 以下是供参考的YAML格式。
CreateResources: !Or [!Equals [!Ref "Environment", prod], !Equals [!Ref "Environment", dev], !Equals [!Ref "Environment", preprod], !Equals [!Ref "Environment", test]]