mirror of
https://github.com/puppetlabs/vmpooler-provider-ec2.git
synced 2026-01-26 02:28:40 -05:00
574 lines
25 KiB
Ruby
574 lines
25 KiB
Ruby
# frozen_string_literal: true
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require 'bigdecimal'
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require 'bigdecimal/util'
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require 'vmpooler/providers/base'
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require 'vmpooler/cloud_dns'
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require 'aws-sdk-ec2'
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require 'vmpooler/aws_setup'
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module Vmpooler
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class PoolManager
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class Provider
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# This class represent a GCE provider to CRUD resources in a gce cloud.
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class Ec2 < Vmpooler::PoolManager::Provider::Base
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# The connection_pool method is normally used only for testing
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attr_reader :connection_pool
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def initialize(config, logger, metrics, redis_connection_pool, name, options)
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super(config, logger, metrics, redis_connection_pool, name, options)
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@aws_access_key = ENV['ABS_AWS_ACCESS_KEY'] || provider_config['ABS_AWS_ACCESS_KEY']
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@aws_secret_key = ENV['ABS_AWS_SECRET_KEY'] || provider_config['ABS_AWS_SECRET_KEY']
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task_limit = global_config[:config].nil? || global_config[:config]['task_limit'].nil? ? 10 : global_config[:config]['task_limit'].to_i
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# The default connection pool size is:
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# Whatever is biggest from:
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# - How many pools this provider services
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# - Maximum number of cloning tasks allowed
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# - Need at least 2 connections so that a pool can have inventory functions performed while cloning etc.
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default_connpool_size = [provided_pools.count, task_limit, 2].max
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connpool_size = provider_config['connection_pool_size'].nil? ? default_connpool_size : provider_config['connection_pool_size'].to_i
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# The default connection pool timeout should be quite large - 60 seconds
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connpool_timeout = provider_config['connection_pool_timeout'].nil? ? 60 : provider_config['connection_pool_timeout'].to_i
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logger.log('d', "[#{name}] ConnPool - Creating a connection pool of size #{connpool_size} with timeout #{connpool_timeout}")
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@logger = logger
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@connection_pool = Vmpooler::PoolManager::GenericConnectionPool.new(
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metrics: metrics,
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connpool_type: 'provider_connection_pool',
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connpool_provider: name,
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size: connpool_size,
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timeout: connpool_timeout
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) do
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logger.log('d', "[#{name}] Connection Pool - Creating a connection object")
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# Need to wrap the vSphere connection object in another object. The generic connection pooler will preserve
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# the object reference for the connection, which means it cannot "reconnect" by creating an entirely new connection
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# object. Instead by wrapping it in a Hash, the Hash object reference itself never changes but the content of the
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# Hash can change, and is preserved across invocations.
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new_conn = connect_to_aws
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{ connection: new_conn }
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end
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@redis = redis_connection_pool
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end
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# name of the provider class
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def name
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'ec2'
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end
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def connection
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@connection_pool.with_metrics do |pool_object|
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return ensured_aws_connection(pool_object)
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end
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end
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# main configuration options
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def region
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return provider_config['region'] if provider_config['region']
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end
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# main configuration options, overridable for each pool
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def zone(pool_name)
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return pool_config(pool_name)['zone'] if pool_config(pool_name)['zone']
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return provider_config['zone'] if provider_config['zone']
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end
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def amisize(pool_name)
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return pool_config(pool_name)['amisize'] if pool_config(pool_name)['amisize']
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return provider_config['amisize'] if provider_config['amisize']
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end
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def volume_size(pool_name)
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return pool_config(pool_name)['volume_size'] if pool_config(pool_name)['volume_size']
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return provider_config['volume_size'] if provider_config['volume_size']
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end
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# dns
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def project
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provider_config['project']
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end
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def domain
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provider_config['domain']
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end
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def dns_zone_resource_name
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provider_config['dns_zone_resource_name']
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end
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# subnets
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def get_subnet_id(pool_name)
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case zone(pool_name)
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when 'us-west-2b'
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'subnet-0fe90a688844f6f26'
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when 'us-west-2a'
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'subnet-091b436f'
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end
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end
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def to_provision(pool_name)
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return pool_config(pool_name)['provision'] if pool_config(pool_name)['provision']
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end
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# Base methods that are implemented:
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# vms_in_pool lists all the VM names in a pool, which is based on the VMs
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# having a tag "pool" that match a pool config name.
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# inputs
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# [String] pool_name : Name of the pool
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# returns
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# empty array [] if no VMs found in the pool
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# [Array]
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# [Hashtable]
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# [String] name : the name of the VM instance (unique for whole project)
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def vms_in_pool(pool_name)
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debug_logger('vms_in_pool')
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vms = []
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pool = pool_config(pool_name)
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raise("Pool #{pool_name} does not exist for the provider #{name}") if pool.nil?
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filters = [
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{
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name: 'tag:pool',
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values: [pool_name]
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},
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{
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name: 'instance-state-name',
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values: %w[pending running shutting-down stopping stopped]
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}
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]
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instance_list = connection.instances(filters: filters)
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return vms if instance_list.first.nil?
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instance_list.each do |vm|
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vms << { 'name' => vm.tags.detect { |f| f.key == 'vm_name' }&.value || 'vm_name not found in tags' }
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end
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debug_logger(vms)
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vms
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end
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# inputs
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# [String] pool_name : Name of the pool
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# [String] vm_name : Name of the VM to find
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# returns
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# nil if VM doesn't exist name, template, poolname, boottime, status, image_size, private_ip_address
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# [Hastable] of the VM
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# [String] name : The name of the resource, provided by the client when initially creating the resource
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# [String] template : This is the name of template
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# [String] poolname : Name of the pool the VM
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# [Time] boottime : Time when the VM was created/booted
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# [String] status : One of the following values: pending, running, shutting-down, terminated, stopping, stopped
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# [String] image_size : The EC2 image size eg a1.large
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# [String] private_ip_address: The private IPv4 address
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def get_vm(pool_name, vm_name)
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debug_logger('get_vm')
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vm_hash = nil
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filters = [{
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name: 'tag:vm_name',
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values: [vm_name]
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}]
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instances = connection.instances(filters: filters).first
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return vm_hash if instances.nil?
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vm_hash = generate_vm_hash(instances, pool_name)
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debug_logger("vm_hash #{vm_hash}")
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vm_hash
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end
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# create_vm creates a new VM with a default network from the config,
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# a initial disk named #{new_vmname}-disk0 that uses the 'template' as its source image
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# and labels added for vm and pool
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# and an instance configuration for machine_type from the config and
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# labels vm and pool
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# having a label "pool" that match a pool config name.
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# inputs
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# [String] pool : Name of the pool
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# [String] new_vmname : Name to give the new VM
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# returns
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# [Hashtable] of the VM as per get_vm(pool_name, vm_name)
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def create_vm(pool_name, new_vmname)
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debug_logger('create_vm')
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pool = pool_config(pool_name)
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raise("Pool #{pool_name} does not exist for the provider #{name}") if pool.nil?
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raise("Instance creation not attempted, #{new_vmname} already exists") if get_vm(pool_name, new_vmname)
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subnet_id = get_subnet_id(pool_name)
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domain_set = domain
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name_to_use = if domain_set.nil?
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new_vmname
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else
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"#{new_vmname}.#{domain_set}"
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end
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tag = [
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{
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resource_type: 'instance', # accepts capacity-reservation, client-vpn-endpoint, customer-gateway, carrier-gateway, dedicated-host, dhcp-options, egress-only-internet-gateway, elastic-ip, elastic-gpu, export-image-task, export-instance-task, fleet, fpga-image, host-reservation, image, import-image-task, import-snapshot-task, instance, instance-event-window, internet-gateway, ipam, ipam-pool, ipam-scope, ipv4pool-ec2, ipv6pool-ec2, key-pair, launch-template, local-gateway, local-gateway-route-table, local-gateway-virtual-interface, local-gateway-virtual-interface-group, local-gateway-route-table-vpc-association, local-gateway-route-table-virtual-interface-group-association, natgateway, network-acl, network-interface, network-insights-analysis, network-insights-path, network-insights-access-scope, network-insights-access-scope-analysis, placement-group, prefix-list, replace-root-volume-task, reserved-instances, route-table, security-group, security-group-rule, snapshot, spot-fleet-request, spot-instances-request, subnet, subnet-cidr-reservation, traffic-mirror-filter, traffic-mirror-session, traffic-mirror-target, transit-gateway, transit-gateway-attachment, transit-gateway-connect-peer, transit-gateway-multicast-domain, transit-gateway-route-table, volume, vpc, vpc-endpoint, vpc-endpoint-service, vpc-peering-connection, vpn-connection, vpn-gateway, vpc-flow-log
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tags: [
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{
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key: 'vm_name',
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value: new_vmname
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},
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{
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key: 'pool',
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value: pool_name
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},
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{
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key: 'lifetime', # required by AWS reaper
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value: max_lifetime
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},
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{
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key: 'created_by', # required by AWS reaper
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value: get_current_user(new_vmname)
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},
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{
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key: 'job_url',
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value: get_current_job_url(new_vmname)
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},
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{
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key: 'organization', # required by AWS reaper
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value: 'engineering'
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},
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{
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key: 'portfolio', # required by AWS reaper
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value: 'ds-ci'
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},
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{
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key: 'Name',
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value: name_to_use
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}
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]
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}
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]
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config = {
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min_count: 1,
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max_count: 1,
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image_id: pool['template'],
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monitoring: { enabled: true },
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key_name: 'always-be-scheduling',
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security_group_ids: ['sg-697fb015'],
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instance_type: amisize(pool_name),
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disable_api_termination: false,
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instance_initiated_shutdown_behavior: 'terminate',
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tag_specifications: tag,
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subnet_id: subnet_id
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}
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config[:block_device_mappings] = get_block_device_mappings(config['image_id'], volume_size(pool_name)) if volume_size(pool_name)
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debug_logger('trigger insert_instance')
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batch_instance = connection.create_instances(config)
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instance_id = batch_instance.first.instance_id
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connection.client.wait_until(:instance_running, { instance_ids: [instance_id] })
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@logger.log('s', "[>] [#{pool_name}] '#{new_vmname}' instance running")
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### System status checks
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# This check verifies that your instance is reachable. Amazon EC2 tests that network packets can get to your instance.
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### Instance status checks
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# This check verifies that your instance's operating system is accepting traffic.
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connection.client.wait_until(:instance_status_ok, { instance_ids: [instance_id] })
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@logger.log('s', "[>] [#{pool_name}] '#{new_vmname}' instance ready to accept traffic")
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created_instance = get_vm(pool_name, new_vmname)
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@redis.with_metrics do |redis|
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redis.hset("vmpooler__vm__#{new_vmname}", 'host', created_instance['name'])
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end
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# extra setup steps
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provision_node_aws(created_instance['private_dns_name'], pool_name, new_vmname) if to_provision(pool_name) == 'true' || to_provision(pool_name) == true
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dns_setup(created_instance) if domain
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created_instance
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end
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def provision_node_aws(vm, pool_name, new_vmname)
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aws_setup = AwsSetup.new(@logger, new_vmname)
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aws_setup.setup_node_by_ssh(vm, pool_name)
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end
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def get_block_device_mappings(image_id, volume_size)
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ec2_client = connection.client
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image = ec2_client.describe_images(image_ids: [image_id]).images.first
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raise "Image not found: #{image_id}" if image.nil?
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raise "#{image_id} does not have an ebs root device type" unless image.root_device_type == 'ebs'
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# Transform the images block_device_mappings output into a format
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# ready for a create.
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block_device_mappings = []
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orig_bdm = image.block_device_mappings
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orig_bdm.each do |block_device|
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block_device_mappings << {
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device_name: block_device.device_name,
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ebs: {
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# Change the default size of the root volume.
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volume_size: volume_size,
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# This is required to override the images default for
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# delete_on_termination, forcing all volumes to be deleted once the
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# instance is terminated.
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delete_on_termination: true
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}
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}
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end
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block_device_mappings
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end
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# create_disk creates an additional disk for an existing VM. It will name the new
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# disk #{vm_name}-disk#{number_disk} where number_disk is the next logical disk number
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# starting with 1 when adding an additional disk to a VM with only the boot disk:
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# #{vm_name}-disk0 == boot disk
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# #{vm_name}-disk1 == additional disk added via create_disk
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# #{vm_name}-disk2 == additional disk added via create_disk if run a second time etc
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# the new disk has labels added for vm and pool
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# The AWS lifecycle is to create a new disk (lives independently of the instance) then to attach
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# it to the existing instance.
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# inputs
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# [String] pool_name : Name of the pool
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# [String] vm_name : Name of the existing VM
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# [String] disk_size : The new disk size in GB
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# returns
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# [boolean] true : once the operations are finished
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# create_snapshot creates new snapshots with the unique name {new_snapshot_name}-#{disk.name}
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# for one vm, and one create_snapshot() there could be multiple snapshots created, one for each drive.
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# since the snapshot resource needs a unique name in the gce project,
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# we create a unique name by concatenating {new_snapshot_name}-#{disk.name}
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# the disk name is based on vm_name which makes it unique.
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# The snapshot is added tags snapshot_name, vm, pool, diskname and boot
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# inputs
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# [String] pool_name : Name of the pool
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# [String] vm_name : Name of the existing VM
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# [String] new_snapshot_name : a unique name for this snapshot, which would be used to refer to it when reverting
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# returns
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# [boolean] true : once the operations are finished
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# raises
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# RuntimeError if the vm_name cannot be found
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# RuntimeError if the snapshot_name already exists for this VM
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# revert_snapshot reverts an existing VM's disks to an existing snapshot_name
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# reverting in aws entails
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# 1. shutting down the VM,
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# 2. detaching and deleting the drives,
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# 3. creating new disks with the same name from the snapshot for each disk
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# 4. attach disks and start instance
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# for one vm, there might be multiple snapshots in time. We select the ones referred to by the
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# snapshot_name, but that may be multiple snapshots, one for each disks
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# The new disk is added tags vm and pool
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# inputs
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# [String] pool_name : Name of the pool
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# [String] vm_name : Name of the existing VM
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# [String] snapshot_name : Name of an existing snapshot
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# returns
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# [boolean] true : once the operations are finished
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# raises
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# RuntimeError if the vm_name cannot be found
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# RuntimeError if the snapshot_name already exists for this VM
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# destroy_vm deletes an existing VM instance and any disks and snapshots via the labels
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# in gce instances, disks and snapshots are resources that can exist independent of each other
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# inputs
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# [String] pool_name : Name of the pool
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# [String] vm_name : Name of the existing VM
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# returns
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# [boolean] true : once the operations are finished
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def destroy_vm(pool_name, vm_name)
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debug_logger('destroy_vm')
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deleted = false
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filters = [{
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name: 'tag:vm_name',
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values: [vm_name]
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}]
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instances = connection.instances(filters: filters).first
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return true if instances.nil?
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instance_hash = get_vm(pool_name, vm_name)
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debug_logger("trigger delete_instance #{vm_name}")
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# vm_hash = get_vm(pool_name, vm_name)
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instances.terminate
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begin
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connection.client.wait_until(:instance_terminated, { instance_ids: [instances.id] })
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deleted = true
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rescue ::Aws::Waiters::Errors => e
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debug_logger("failed waiting for instance terminated #{vm_name}: #{e}")
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end
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dns_teardown(instance_hash) if domain
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deleted
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end
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# check if a vm is ready by opening a socket on port 22
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# if a domain is set, it will use vn_name.domain,
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# if not then it will use the ip directly (AWS workaround)
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def vm_ready?(pool_name, vm_name)
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begin
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# TODO: we could use a healthcheck resource attached to instance
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domain_set = domain
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if domain_set.nil?
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vm_ip = get_vm(pool_name, vm_name)['private_dns_name']
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vm_name = vm_ip unless vm_ip.nil?
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end
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open_socket(vm_name, domain_set)
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rescue StandardError => e
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@logger.log('s', "[!] [#{pool_name}] '#{vm_name}' instance cannot be reached by vmpooler on tcp port 22; #{e}")
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return false
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end
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true
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end
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# tag_vm_user This method is called once we know who is using the VM (it is running). This method enables seeing
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# who is using what in the provider pools.
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#
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# inputs
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# [String] pool_name : Name of the pool
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# [String] vm_name : Name of the VM to check if ready
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# returns
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# [Boolean] : true if successful, false if an error occurred and it should retry
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def tag_vm_user(pool, vm_name)
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user = get_current_user(vm_name)
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vm_hash = get_vm(pool, vm_name)
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return false if vm_hash.nil?
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new_labels = vm_hash['labels']
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# bailing in this case since labels should exist, and continuing would mean losing them
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return false if new_labels.nil?
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# add new label called token-user, with value as user
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new_labels['token-user'] = user
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begin
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instances_set_labels_request_object = Google::Apis::ComputeV1::InstancesSetLabelsRequest.new(label_fingerprint: vm_hash['label_fingerprint'], labels: new_labels)
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result = connection.set_instance_labels(project, zone(pool), vm_name, instances_set_labels_request_object)
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wait_for_zone_operation(project, zone(pool), result)
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rescue StandardError => _e
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return false
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end
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true
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end
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# END BASE METHODS
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def dns_setup(created_instance)
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|
dns = Vmpooler::PoolManager::CloudDns.new(project, dns_zone_resource_name)
|
|
dns.dns_create_or_replace(created_instance)
|
|
end
|
|
|
|
def dns_teardown(created_instance)
|
|
dns = Vmpooler::PoolManager::CloudDns.new(project, dns_zone_resource_name)
|
|
dns.dns_teardown(created_instance)
|
|
end
|
|
|
|
def get_current_user(vm_name)
|
|
@redis.with_metrics do |redis|
|
|
user = redis.hget("vmpooler__vm__#{vm_name}", 'token:user')
|
|
return '' if user.nil?
|
|
|
|
# cleanup so it's a valid label value
|
|
# can't have upercase
|
|
user = user.downcase
|
|
# replace invalid chars with dash
|
|
user = user.gsub(/[^0-9a-z_-]/, '-')
|
|
return user
|
|
end
|
|
end
|
|
|
|
# returns lifetime in hours in the format Xh defaults to 1h
|
|
def get_current_lifetime(vm_name)
|
|
@redis.with_metrics do |redis|
|
|
lifetime = redis.hget("vmpooler__vm__#{vm_name}", 'lifetime') || '1'
|
|
return "#{lifetime}h"
|
|
end
|
|
end
|
|
|
|
# returns max_lifetime_upper_limit in hours in the format Xh defaults to 12h
|
|
def max_lifetime
|
|
max_hours = global_config[:config]['max_lifetime_upper_limit'] || '12'
|
|
"#{max_hours}h"
|
|
end
|
|
|
|
def get_current_job_url(vm_name)
|
|
@redis.with_metrics do |redis|
|
|
job = redis.hget("vmpooler__vm__#{vm_name}", 'tag:jenkins_build_url') || ''
|
|
return job
|
|
end
|
|
end
|
|
|
|
# Return a hash of VM data
|
|
# Provides name, template, poolname, boottime, status, image_size, private_ip_address
|
|
def generate_vm_hash(vm_object, pool_name)
|
|
pool_configuration = pool_config(pool_name)
|
|
return nil if pool_configuration.nil?
|
|
|
|
domain_set = domain
|
|
name_to_use = if domain_set.nil?
|
|
vm_object.private_dns_name
|
|
else
|
|
vm_object.tags.detect { |f| f.key == 'Name' }&.value
|
|
end
|
|
|
|
{
|
|
'name' => name_to_use,
|
|
# 'hostname' => vm_object.hostname,
|
|
'template' => pool_configuration&.key?('template') ? pool_configuration['template'] : nil, # was expecting to get it from API, not from config, but this is what vSphere does too!
|
|
'poolname' => vm_object.tags.detect { |f| f.key == 'pool' }&.value,
|
|
'boottime' => vm_object.launch_time,
|
|
'status' => vm_object.state&.name, # One of the following values: pending, running, shutting-down, terminated, stopping, stopped
|
|
# 'zone' => vm_object.zone,
|
|
'image_size' => vm_object.instance_type,
|
|
'ip' => vm_object.private_ip_address,
|
|
'private_ip_address' => vm_object.private_ip_address,
|
|
'private_dns_name' => vm_object.private_dns_name
|
|
}
|
|
end
|
|
|
|
def ensured_aws_connection(connection_pool_object)
|
|
connection_pool_object[:connection] = connect_to_aws unless connection_pool_object[:connection]
|
|
connection_pool_object[:connection]
|
|
end
|
|
|
|
def connect_to_aws
|
|
max_tries = global_config[:config]['max_tries'] || 3
|
|
retry_factor = global_config[:config]['retry_factor'] || 10
|
|
try = 1
|
|
begin
|
|
compute = ::Aws::EC2::Resource.new(
|
|
region: region,
|
|
credentials: ::Aws::Credentials.new(@aws_access_key, @aws_secret_key),
|
|
log_level: :debug
|
|
)
|
|
|
|
metrics.increment('connect.open')
|
|
compute
|
|
rescue StandardError => e # is that even a thing?
|
|
metrics.increment('connect.fail')
|
|
raise e if try >= max_tries
|
|
|
|
sleep(try * retry_factor)
|
|
try += 1
|
|
retry
|
|
end
|
|
end
|
|
|
|
# This should supercede the open_socket method in the Pool Manager
|
|
def open_socket(host, domain = nil, timeout = 5, port = 22, &_block)
|
|
Timeout.timeout(timeout) do
|
|
target_host = host
|
|
target_host = "#{host}.#{domain}" if domain
|
|
sock = TCPSocket.new target_host, port
|
|
begin
|
|
yield sock if block_given?
|
|
ensure
|
|
sock.close
|
|
end
|
|
end
|
|
end
|
|
|
|
# used in local dev environment, set DEBUG_FLAG=true
|
|
# this way the upstream vmpooler manager does not get polluted with logs
|
|
def debug_logger(message, send_to_upstream: false)
|
|
# the default logger is simple and does not enforce debug levels (the first argument)
|
|
puts message if ENV['DEBUG_FLAG']
|
|
@logger.log('[g]', message) if send_to_upstream
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|