Explicitly specify AZ for boot volume
If a volume is to be used as a boot volume (i.e. attached to the Instance prior to creation using the Volumes property, rather than afterwards with a VolumeAttachment), then it cannot obtain the AvailabilityZone (which, if not specified, is assigned dynamically) from the Instance, since that has not yet been created and assigned to an AZ. Instead, require the AZ to be specified as a parameter. Change-Id: Icccc9b531b1fd7754d76c13d90679ed04c9c0d02
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@ -5,6 +5,12 @@
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"Parameters" : {
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"AvailabilityZone" : {
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"Description" : "The Availability Zone in which to launch the instance.",
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"Type" : "String",
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"Default" : "nova"
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},
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"KeyName" : {
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"Description" : "Name of an existing EC2 KeyPair to enable SSH access to the instance",
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"Type" : "String"
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@ -57,6 +63,7 @@
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"Ec2Instance" : {
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"Type" : "AWS::EC2::Instance",
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"Properties" : {
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"AvailabilityZone" : { "Ref" : "AvailabilityZone" },
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"SecurityGroups" : [ { "Ref" : "InstanceSecurityGroup" } ],
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"ImageId" : { "Fn::FindInMap" : [ "DistroArch2AMI", { "Ref" : "LinuxDistribution" },
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{ "Fn::FindInMap" : [ "AWSInstanceType2Arch", { "Ref" : "InstanceType" }, "Arch" ] } ] },
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@ -87,7 +94,7 @@
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"Type" : "AWS::EC2::Volume",
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"Properties" : {
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"Size" : { "Ref" : "VolumeSize" },
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"AvailabilityZone" : { "Fn::GetAtt" : [ "Ec2Instance", "AvailabilityZone" ]}
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"AvailabilityZone" : { "Ref" : "AvailabilityZone" }
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}
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}
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},
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