Check the launch status of the underlying EC2 instances in an ECS cluster.

ecs-host-status.sh

##
# Requires:
#   * AWS Unified CLI Tools
#   * jq
##

cluster_name="name-of-ecs-cluster"

aws ec2 describe-instance-status \
    --instance-ids $(
        aws ecs describe-container-instances \
            --cluster $cluster_name \
            --container-instances $(
                aws ecs list-container-instances \
                    --cluster $cluster_name \
                    | jq -r ".containerInstanceArns[]"
            ) \
            | jq -r ".containerInstances[].ec2InstanceId"
    ) \
    | jq -r '.InstanceStatuses[] | {
        "id": .InstanceId,
        "state": .InstanceState.Name,
        "statusCheck1": .InstanceStatus.Status,
        "statusCheck2": .SystemStatus.Status
    }' \
;