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I would like to ask a question in line with above. The cli below works perfectly fine now I would also like to capture two other tags in addition to the 'Name' tag called 'Application' and 'Owner'. How can I change this to add Application and Owner tags to the out-put. So basically:

aws ec2 describe-instances --query "Reservations[].Instances[].[Placement.AvailabilityZone,InstanceId,InstanceType,Platform, State.Name,PrivateIpAddress,StateTransitionReason,Tags[?Key=='Name'] | [0].Value]" --output table

What I am thinking is how do I duplicate Tags[?Key=='Name'] | [0].Value] to make it also pull Application and Owner so in effect Tags[?Key=='Application'] | [0].Value] and Tags[?Key=='Owner'] | [0].Value]? So that when I run the cli it pulls three different tags.

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  • Frankly, this type of thing is hard to do where not every instance has every tag. You might be better-off with a simple Python script. What are you trying to do with the information once you retrieve it? Quite clearly, table output is not very useful. Commented Apr 15, 2018 at 8:19

3 Answers 3

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Just add it on...

--query "Reservations[].Instances[].[InstanceId,Tags[?Key=='Name']|[0].Value,Tags[?Key=='Application']|[0].Value,Tags[?Key=='Owner']|[0].Value]"
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John,Thank you very much I tried that but it did not work. Did it work for you? below is what I did aws ec2 describe-instances --query "Reservations[].Instances[].[Placement.AvailabilityZone,InstanceId,InstanceType,Platform,State.Name,PrivateIpAddress,StateTransitionReason,Tags[?Key=='Name'] | [0].Value], Tags[?Key=='Application'] | [0].Value, Tags[?Key=='Owner'] | [0].Value]" --output table
ok the cli below executed but returend None for the owner but I know that tag is there for all instances. --- aws ec2 describe-instances --query "Reservations[].Instances[].[Placement.AvailabilityZone,InstanceId,InstanceType,Platform,State.Name,PrivateIpAddress,StateTransitionReason,Tags[?Key=='Name'] | [0].Value, Tags[?key=='Owner'] | [0].value]" --output table
Can you change your query to: aws ec2 describe-instances --query 'Reservations[].Instances[].[InstanceId,InstanceType,Platform,State.Name,PrivateIpAddress,StateTransitionReason,Tags[?Key==`Name`].Value | [0],Tags[?Key==`Owner`].Value | [0]]' --output table
Krishna - You are spot on by eliminating "Placement.Availability zone" and changing "Tags[?key=='Owner'] | [0].value" TO "Tags[?key=='Owner'].value | [0]" it worked. That worked like Magic. Please explain this change so I can learn I am now able to expand and add more tags I need following same routine. Many thanks to John and Krishna.
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this works also. (those are back ticks around the key value)

--query 'Snapshots[*].{DES:Description,VOL:VolumeId,VSIZE:VolumeSize,Time:StartTime,ID:SnapshotId,Name:Tags[?Key==Name]|[0].Value,RP:Tags[?Key==retention-period]|[0].Value}'

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Fetching Custom tags are really helpful when you try to build something on top of that, like- system or Application configuration based on those, for EaaS, DEaaS, or TEaaS. Hope this will work for you : aws ec2 describe-instances --query 'Reservations[].Instances[].[InstanceId,InstanceType,Platform,State.Name,PrivateIpAddress,StateTransitionReason,Tags[?Key==Application].Value | [0], Tags[?Key==Name].Value | [0],Tags[?Key==Owner].Value | [0]]' --output table –

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