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aws cli + jq example
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wget http://stedolan.github.io/jq/download/linux64/jq | |
aws ec2 describe-instances --filters "Name=tag:Name,Values=$NAME" \ | |
"Name=instance-state-name,Values=running" \ | |
| jq -r \ | |
".Reservations[] | .Instances[] | .InstanceId" \ | |
aws ec2 describe-volumes --filters \ | |
"Name=status,Values=available" \ | |
| jq -r ".Volumes[] | .VolumeId" \ | |
aws ec2 describe-instances | jq '.Reservations[].Instances[] | select(.LaunchTime > "2015-01-28") | select(.State.Code != 48) | [.LaunchTime, .State.Name, (.Tags[]|select(.Key=="Name")|.Value)]' | |
# no dotdee | |
aws ec2 describe-instances | jq --arg yest $(python -c "import datetime; t = datetime.datetime.now() - datetime.timedelta(hours=24); print t.strftime('%Y-%m-%d')") -r '.Reservations[].Instances[] | select(.LaunchTime > $yest) | select(.State.Code != 48) | (.Tags[]//[]|select(.Key=="Name")|.Value) as $name | "Host \($name) \nHostname \(.PrivateIpAddress)"' >> ~/.ssh/config |
aws ec2 describe-instances | jq -r '.Reservations[]|.Instances[]|[(.Tags[]?|select(.Key=="Name")|.Value), (.Tags[]?|select(.Key=="Group-Name")|.Value),.InstanceId,.PrivateIpAddress]|@csv'|sort
Scenario
You should not assume that all vpc has
.Tags[]
. I just faced the scenario below with the output of:
aws ec2 describe-vpcs > outputfile.json
Error
jq -r '.Vpcs[]|[.VpcId,.CidrBlock, (.Tags[]|select(.Key=="Name")|.Value)] | @csv' outputfile.json
jq: error (at outputfile.json:nnn): Cannot iterate over null (null)
Solution
Make Tags optional..
jq -r '.Vpcs[]|[.VpcId,.CidrBlock, (.Tags[]?|select(.Key=="Name")|.Value)] | @csv' outputfile.json
is there a way to assign a value to "Name" if the tag does not exist?.
For example:
aws ec2 describe-instances | jq -c '.Reservations[].Instances[] | { instanceid:.InstanceId, name:(.Tags[]? | select(.Key=="Name") | .Value)}'
will not return the instances that have tags but not the "Name" tag.
Appreciate your insights.
Found this article recently. Not sure how many examples are here and there but still it is worth linking, I believe.
https://medium.com/circuitpeople/aws-cli-with-jq-and-bash-9d54e2eabaf1
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Please help me to get active Iam key of a user with create date. Thanks Neeraj