Files
ubicloud/prog/aws/instance.rb
Burak Yucesoy c85ad703cc Shell escape public_keys while preparing user_data script
public_keys can contain multiple lines, so we need to escape them.
2025-07-01 00:24:58 +03:00

107 lines
3.2 KiB
Ruby

# frozen_string_literal: true
require "aws-sdk-ec2"
class Prog::Aws::Instance < Prog::Base
subject_is :vm
label def start
public_keys = (vm.sshable.keys.map(&:public_key) + (vm.project.get_ff_vm_public_ssh_keys || [])).join("\n")
# Define user data script to set a custom username
user_data = <<~USER_DATA
#!/bin/bash
custom_user="#{vm.unix_user}"
# Create the custom user
adduser $custom_user --disabled-password --gecos ""
# Add the custom user to the sudo group
usermod -aG sudo $custom_user
# disable password for the custom user
echo "$custom_user ALL=(ALL:ALL) NOPASSWD:ALL" | sudo tee /etc/sudoers.d/$custom_user
# Set up SSH access for the custom user
mkdir -p /home/$custom_user/.ssh
cp /home/ubuntu/.ssh/authorized_keys /home/$custom_user/.ssh/
chown -R $custom_user:$custom_user /home/$custom_user/.ssh
chmod 700 /home/$custom_user/.ssh
chmod 600 /home/$custom_user/.ssh/authorized_keys
echo #{public_keys.shellescape} > /home/$custom_user/.ssh/authorized_keys
usermod -L ubuntu
USER_DATA
instance_size_map = {
2 => "m6id.large",
4 => "m6id.xlarge",
8 => "m6id.2xlarge",
16 => "m6id.4xlarge",
32 => "m6id.8xlarge",
64 => "m6id.16xlarge"
}
instance_response = client.run_instances({
image_id: vm.boot_image, # AMI ID
instance_type: instance_size_map[vm.vcpus], # Instance type
block_device_mappings: [
{
device_name: "/dev/sda1",
ebs: {
encrypted: true,
delete_on_termination: true,
iops: 3000,
volume_size: 40,
volume_type: "gp3",
throughput: 125
}
}
],
network_interfaces: [
{
network_interface_id: vm.nics.first.name,
device_index: 0
}
],
private_dns_name_options: {
hostname_type: "ip-name",
enable_resource_name_dns_a_record: false,
enable_resource_name_dns_aaaa_record: false
},
min_count: 1,
max_count: 1,
user_data: Base64.encode64(user_data),
tag_specifications: [
{
resource_type: "instance",
tags: [
{key: "Ubicloud", value: "true"}
]
}
]
})
instance_id = instance_response.instances[0].instance_id
vm.update(name: instance_id)
hop_wait_instance_created
end
label def wait_instance_created
instance_response = client.describe_instances({filters: [{name: "instance-id", values: [vm.name]}, {name: "tag:Ubicloud", values: ["true"]}]}).reservations[0].instances[0]
if instance_response.dig(:state, :name) == "running"
public_ipv4 = instance_response.dig(:network_interfaces, 0, :association, :public_ip)
AssignedVmAddress.create_with_id(
dst_vm_id: vm.id,
ip: public_ipv4
)
vm.sshable&.update(host: public_ipv4)
vm.update(cores: vm.vcpus / 2, allocated_at: Time.now, ephemeral_net6: instance_response.dig(:network_interfaces, 0, :ipv_6_addresses, 0, :ipv_6_address))
pop "vm created"
end
nap 1
end
label def destroy
client.terminate_instances({instance_ids: [vm.name]})
pop "vm destroyed"
end
def client
@client ||= vm.location.location_credential.client
end
end