Tagging AMI with the source AMI ID

Matt Brewster

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Jul 12, 2017, 9:38:32 AM7/12/17

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Hi all,

Most of my builders look up an AMI based on a source_ami_filter. I'd like to tag the created AMI with the source AMI ID so there's an audit of the hierarchy. The documentation states:

tags (object of key/value strings) - Tags applied to the AMI and relevant snapshots. This is a template engine where the SourceAMI variable is replaced with the source AMI ID and BuildRegion variable is replaced with the value of region.

So far I have tried:

{
	"variables": {
		"SourceAMI": ""
	},
	"builders": [
		{
			"type": "amazon-ebs",
			"region": "eu-west-2",
			"instance_type": "t2.small",
			"ssh_username": "ec2-user",
			"ami_name": "root-{{timestamp}}",
			"source_ami": "ami-11130775",
			"tags": {
				"based_on_ami": "{{user `SourceAMI`}}"
			}
		}
	]
}

{
	"builders": [
		{
			"type": "amazon-ebs",
			"region": "eu-west-2",
			"instance_type": "t2.small",
			"ssh_username": "ec2-user",
			"ami_name": "root-{{timestamp}}",
			"source_ami": "ami-11130775",
			"tags": {
				"based_on_ami": "{{user `SourceAMI`}}"
			}
		}
	]
}

{
	"builders": [
		{
			"type": "amazon-ebs",
			"region": "eu-west-2",
			"instance_type": "t2.small",
			"ssh_username": "ec2-user",
			"ami_name": "root-{{timestamp}}",
			"source_ami": "ami-11130775",
			"tags": {
				"based_on_ami": "{{`SourceAMI`}}"
			}
		}
	]
}

{
	"builders": [
		{
			"type": "amazon-ebs",
			"region": "eu-west-2",
			"instance_type": "t2.small",
			"ssh_username": "ec2-user",
			"ami_name": "root-{{timestamp}}",
			"source_ami": "ami-11130775",
			"tags": {
				"based_on_ami": "{{`.SourceAMI`}}"
			}
		}
	]
}

So far none of these have worked. Can someone point me in the right direction please..?

Thanks

Matt

Rickard von Essen

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Jul 12, 2017, 10:11:21 AM7/12/17

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This should work:

"tags": {

"based_on_ami": "{{.SourceAMI}}"

}

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Matt Brewster

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Jul 12, 2017, 11:55:20 AM7/12/17

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That doesn't work I'm afraid, it creates the tag but the value is "<no value>".

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Rickard von Essen

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Jul 12, 2017, 12:37:40 PM7/12/17

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Which version of Packer?

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Matt Brewster

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Jul 13, 2017, 12:10:24 PM7/13/17

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It turns out to be a really old version! I've updated to the latest and it's working now, thanks.

Which version of Packer?

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