#' ec2_instance_create
#' @param ImageId An aws ec2 id: i.e., 'ami-0174e69c12bae5410'
#' @param InstanceType See \url{https://aws.amazon.com/ec2/instance-types/}
#' @param min min instances
#' @param max max instances
#' @param KeyName A .pem file to ssh
#' @param SecurityGroupId SecurityGroupId of security group you have created in UI
#' @param InstanceStorage Size of the box in gb
#' @param user_data A shell script that runs on startup
#' @param DeviceName "/dev/sda1"
#' @export ec2_instance_create
ec2_instance_create <- function(ImageId = NA,
InstanceType='t2.nano',
min = 1,
max = 1,
KeyName = NA,
SecurityGroupId = NA,
InstanceStorage = 50,
DeviceName = "/dev/sda1",
user_data = NA) {
if(is.na(user_data)) {
user_data <- ec2_instance_script(null_user = TRUE)
}
response <-
resource_ec2()$create_instances(ImageId = ImageId,
InstanceType = InstanceType,
MinCount = as.integer(min),
MaxCount = as.integer(max),
UserData = user_data,
KeyName = KeyName,
SecurityGroupIds = list(SecurityGroupId),
BlockDeviceMappings = list(
list(
Ebs = list(
VolumeSize = as.integer(InstanceStorage)
),
DeviceName = DeviceName
)
)
)
walk(response, function(x) x$wait_until_running())
walk(response, function(x) x$load())
response
}
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