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dapi/ssh_key_distribution.sh

Created May 13, 2024 08:13
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Copy ssh public key to all AWS instances
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ssh_key_distribution.sh
aws ec2 describe-instances --query 'Reservations[*].Instances[*].{Instance:InstanceId,AvailabilityZone:Placement.AvailabilityZone}' --region us-east-1 | \
jq -r '.[] | map({Instance,AvailabilityZone}) | (first | keys_unsorted) as $$keys | map([to_entries[] | .value]) as $$rows | $$keys,$$rows[] | @tsv' | \
grep -v Instance | \
awk '{print "--instance-id", $1, "--availability-zone", $2}' | \
xargs -I@ bash -c "AWS_PAGER= aws ec2-instance-connect send-ssh-public-key --region us-east-1 @ --instance-os-user ec2-user --ssh-public-key file://~/.ssh/id_rsa.pub"
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