Provisionnement de l'équilibrage de charge Avi Load Balancer en tant que service

En tant qu'administrateur de cloud, vous pouvez exploiter les ressources de VMware Avi Load Balancer pour développer votre infrastructure. Vous pouvez également utiliser des aides d'allocation pour fournir une logique d'allocation pour vos ressources Avi Load Balancer.

Avant de commencer

Avant de commencer avec l'un des exemples de modèle, vous devez créer votre compte de cloud Avi Load Balancer dans Automation Assembler, créer un projet, puis ajouter la zone de cloud. Pour obtenir des instructions, reportez-vous à la section Création d'un compte de cloud VMware Avi Load Balancer.

Modèle LBaaS simple

Cet exemple de modèle montre comment vous pouvez créer un service virtuel, un pool et des ressources d'adresses IP virtuelles avec un minimum d'entrées.

Toutes les ressources Avi Load Balancer utilisées dans cet exemple font référence aux constructions Avi Load Balancer qui pointent vers le contrôleur Avi Load Balancer.

Aucune machine ou serveur n'est provisionné dans ce modèle. Vous obtenez la liste des serveurs qui peuvent être mis à jour en continu.

Le modèle correspond par défaut à un pool vide, mais le formulaire et l'entrée sont configurés afin que vous puissiez entrer des adresses IP réelles et qu'un pool normal soit créé.

formatVersion: 1
name: ALB - LBaaS Demo - Simple
version: 1
inputs:
  port:
    type: integer
    title: Port
    description: Traffic sent to servers will use this destination server port unless overridden by the server's specific port attribute.
    default: 80
  servers:
    type: array
    title: Servers
    description: The pool directs load balanced traffic to this list of destination servers. The servers can be configured by IP address, name, network or via IP Address Group. Leaving 0.0.0.0 will result in an empty pool being created.
    items:
      type: string
    minItems: 0
    default:
      - 0.0.0.0
resources:
  VIP:
    type: Idem.AVILB.APPLICATIONS.VS_VIP
    properties:
      name: vip-${uuid()}
      account: avi-account
      description: Managed by Aria Automation
      vip:
        - vip_id: 0
          auto_allocate_ip: true
          ipam_network_subnet:
            network_ref: VMNetwork-PortGroup
  VirtualService:
    type: Idem.AVILB.APPLICATIONS.VIRTUAL_SERVICE
    properties:
      name: vs-${uuid()}
      account: avi-account
      description: Managed by Aria Automation
      services:
        - port: ${input.port}
      pool_ref: ${resource.Pool.name}
      vsvip_ref: ${resource.VIP.name}
  Pool:
    type: Idem.AVILB.APPLICATIONS.POOL
    properties:
      name: pool-${uuid()}
      account: avi-account
      description: Managed by Aria Automation
      default_server_port: ${input.port}
      servers: '${input.servers[0] == "0.0.0.0" ? null :map_by(input.servers, address => {"ip": {"addr": address, "type" : "V4"}})}'

Modèle LBaaS avancé

Cet exemple de modèle montre comment vous pouvez créer un service virtuel, un pool et des ressources IP virtuelles connectés à un réseau existant avec une aide d'allocation de zone de cloud. En outre, le pool est configuré avec le moniteur de santé HTTP du système.

formatVersion: 1
name: ALB - LBaaS Demo
version: 1
inputs:
  env:
    type: string
    title: Environment
    description: Select Dev or Prod ALB environment
    default: env:dev
    oneOf:
      - title: Dev ALB
        const: env:dev
      - title: Prod ALB
        const: env:prod
  port:
    type: integer
    title: Port
    description: Input the server ip's to add to the pool.
    default: 80
  servers:
    type: array
    title: Servers
    description: Input the server ip's to add to the pool. Leaving 0.0.0.0 will result in an empty pool being created.
    items:
      type: string
    minItems: 0
    default:
      - 0.0.0.0
resources:
  Allocations_CloudZone_1:
    type: Allocations.CloudZone
    properties:
      accountType: avilb
      constraints:
        - tag: ${input.env}
  VIP:
    type: Idem.AVILB.APPLICATIONS.VS_VIP
    properties:
      name: vip-${uuid()}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      description: Managed by Aria Automation
      vip:
        - vip_id: 0
          auto_allocate_ip: true
          ipam_network_subnet:
            network_ref: ${resource.Cloud_vSphere_Network_1.resourceName}
  VirtualService:
    type: Idem.AVILB.APPLICATIONS.VIRTUAL_SERVICE
    properties:
      name: vs-${uuid()}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      description: Managed by Aria Automation
      services:
        - port: ${input.port}
      pool_ref: ${resource.Pool.name}
      vsvip_ref: ${resource.VIP.name}
  Pool:
    type: Idem.AVILB.APPLICATIONS.POOL
    properties:
      name: pool-${uuid()}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      description: Managed by Aria Automation
      default_server_port: ${input.port}
      servers: '${input.servers[0] == "0.0.0.0" ? null :map_by(input.servers, address => {"ip": {"addr": address, "type" : "V4"}})}'
      health_monitor_refs:
        - System-HTTP
  Cloud_vSphere_Network_1:
    type: Cloud.vSphere.Network
    properties:
      networkType: existing
      constraints:
        - tag: net:vm

Modèle de serveurs Web simple

Cet exemple de modèle montre comment vous pouvez créer un service virtuel, un pool, une adresse IP virtuelle et deux ressources de machine virtuelle de serveur Web connectées à un réseau existant. Le pool est configuré pour surveiller le port 80 à l'aide de l'algorithme Round Robin.

formatVersion: 1
name: ALB - Web Servers
version: 1
inputs:
  env:
    type: string
    title: Environment
    description: Select Dev or Prod ALB environment
    default: env:dev
    oneOf:
      - title: Dev ALB
        const: env:dev
      - title: Prod ALB
        const: env:prod
  clusterSize:
    type: string
    enum:
      - small
      - medium
      - large
    default: small
    title: Web Server Cluster Size
    description: Web Server Cluster Size. Small creates one web server and no ALB. Medium creates 2 web servers and a ALB. Large creates 4 web servers and a ALB.
  username:
    type: string
    title: Username
    default: demouser
  password:
    type: string
    title: Password
    encrypted: false
    default: VMware1!
  port:
    type: integer
    title: Port
    default: 80
  health_monitor:
    type: array
    items:
      type: string
    title: Health Monitors
    default:
      - System-HTTP
    minItems: 1
    maxItems: 10
  lb_algorithm:
    type: string
    title: Load Balancer Algorithm
    description: The load balancing algorithm will pick a server within the pool's list of available servers.
    readOnly: false
    default: LB_ALGORITHM_LEAST_CONNECTIONS
    oneOf:
      - title: Least Connections
        const: LB_ALGORITHM_LEAST_CONNECTIONS
      - title: Round Robin
        const: LB_ALGORITHM_ROUND_ROBIN
      - title: Fastest Response
        const: LB_ALGORITHM_FASTEST_RESPONSE
      - title: Consistent Hash
        const: LB_ALGORITHM_CONSISTENT_HASH
      - title: Least Load
        const: LB_ALGORITHM_LEAST_LOAD
      - title: Fewest Servers
        const: LB_ALGORITHM_FEWEST_SERVERS
      - title: Random
        const: LB_ALGORITHM_RANDOM
      - title: Fewest Tasks
        const: LB_ALGORITHM_FEWEST_TASKS
      - title: Core Affinity
        const: LB_ALGORITHM_CORE_AFFINITY
resources:
  ALB_HEALTH_MONITOR:
    type: Idem.AVILB.PROFILES.HEALTH_MONITOR
    properties:
      name: web-health-${uuid()}
      description: Managed by Aria Assembler
      type: ${input.health_monitor}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
  Allocations_CloudZone_1:
    type: Allocations.CloudZone
    properties:
      accountType: avilb
      constraints:
        - tag: ${input.env}
  ALB_APPLICATION_PERSISTENCE_PROFILE:
    type: Idem.AVILB.PROFILES.APPLICATION_PERSISTENCE_PROFILE
    properties:
      name: apache-appprofile-${uuid()}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      description: Managed by Aria Automation
      persistence_type: PERSISTENCE_TYPE_CLIENT_IP_ADDRESS
      server_hm_down_recovery: HM_DOWN_PICK_NEW_SERVER
      ip_persistence_profile:
        ip_mask: 24
        ip_persistent_timeout: 20
  SecurityGroup:
    type: Cloud.SecurityGroup
    properties:
      constraints:
        - tag: ${input.env}
      securityGroupType: existing
  VIP:
    type: Idem.AVILB.APPLICATIONS.VS_VIP
    properties:
      name: web-vip-${uuid()}
      description: Managed by Aria Automation
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      vip:
        - vip_id: 0
          auto_allocate_ip: true
          ipam_network_subnet:
            network_ref: ${resource.Cloud_vSphere_Network_1.resourceName}
  VirtualService:
    type: Idem.AVILB.APPLICATIONS.VIRTUAL_SERVICE
    properties:
      name: web-vs-${uuid()}
      description: Managed by Aria Assembler
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      cloud_type: CLOUD_VCENTER
      services:
        - port: ${input.port}
      vsvip_ref: ${resource.VIP[0].name}
      pool_ref: ${resource.Pool[0].name}
  Pool:
    type: Idem.AVILB.APPLICATIONS.POOL
    properties:
      name: web-pool-${uuid()}
      description: Managed by Aria Automation
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      default_server_port: ${input.port}
      health_monitor_refs:
        - ${resource.ALB_HEALTH_MONITOR.name}
      lb_algorithm: ${input.lb_algorithm}
      application_persistence_profile_ref: ${resource.ALB_APPLICATION_PERSISTENCE_PROFILE.name}
      servers: '${map_by(resource.Web_Server[*].address, address => {"ip": {"addr": address, "type" : "V4"}})}'
  Web_Server:
    type: Cloud.vSphere.Machine
    properties:
      name: web
      count: 2
      flavor: small
      imageRef: https://cloud-images.ubuntu.com/releases/18.04/release/ubuntu-18.04-server-cloudimg-amd64.ova
      cloudConfig: |
        packages:
          - apache2
          - open-vm-tools

        runcmd:
          ### update the top of the web page to the web servers resource name
          - sed -i 's/Apache2 Ubuntu Default Page/${self.resourceName}/g' /var/www/html/index.html
          
          ### Restart services
          - systemctl reload apache2
          - systemctl restart apache2
          
          ### Log completion
          - echo 'Cloud-init is done!' >> /tmp/finished.txt
      networks:
        - network: ${resource.Cloud_vSphere_Network_1.id}
          securityGroups:
            - ${resource.SecurityGroup.id}
  Cloud_vSphere_Network_1:
    type: Cloud.vSphere.Network
    properties:
      networkType: existing
      constraints:
        - tag: net:vm

Modèle de serveurs Web avancé

Ce modèle montre comment vous pouvez créer un service virtuel, un pool et des ressources IP virtuelles connectés à un réseau existant avec une aide d'allocation de zone de cloud. En outre, un moniteur de santé et un profil de persistance d'application sont créés et configurés dans le pool. Enfin, les groupes de sécurité sont énumérés par balise et les serveurs Web de machine virtuelle y sont ajoutés.

formatVersion: 1
name: ALB - Web Servers
version: 1
inputs:
  env:
    type: string
    title: Environment
    description: Select Dev or Prod ALB environment
    default: env:dev
    oneOf:
      - title: Dev ALB
        const: env:dev
      - title: Prod ALB
        const: env:prod
  clusterSize:
    type: string
    enum:
      - small
      - medium
      - large
    default: small
    title: Web Server Cluster Size
    description: Web Server Cluster Size. Small creates one web server and no ALB. Medium creates 2 web servers and a ALB. Large creates 4 web servers and a ALB.
  username:
    type: string
    title: Username
    default: demouser
  password:
    type: string
    title: Password
    encrypted: false
    default: VMware1!
  port:
    type: integer
    title: Port
    default: 80
  health_monitor:
    type: array
    items:
      type: string
    title: Health Monitors
    default:
      - System-HTTP
    minItems: 1
    maxItems: 10
  lb_algorithm:
    type: string
    title: Load Balancer Algorithm
    description: The load balancing algorithm will pick a server within the pool's list of available servers.
    readOnly: false
    default: LB_ALGORITHM_LEAST_CONNECTIONS
    oneOf:
      - title: Least Connections
        const: LB_ALGORITHM_LEAST_CONNECTIONS
      - title: Round Robin
        const: LB_ALGORITHM_ROUND_ROBIN
      - title: Fastest Response
        const: LB_ALGORITHM_FASTEST_RESPONSE
      - title: Consistent Hash
        const: LB_ALGORITHM_CONSISTENT_HASH
      - title: Least Load
        const: LB_ALGORITHM_LEAST_LOAD
      - title: Fewest Servers
        const: LB_ALGORITHM_FEWEST_SERVERS
      - title: Random
        const: LB_ALGORITHM_RANDOM
      - title: Fewest Tasks
        const: LB_ALGORITHM_FEWEST_TASKS
      - title: Core Affinity
        const: LB_ALGORITHM_CORE_AFFINITY
resources:
  ALB_HEALTH_MONITOR:
    type: Idem.AVILB.PROFILES.HEALTH_MONITOR
    properties:
      name: web-health-${uuid()}
      description: Managed by Aria Assembler
      type: ${input.health_monitor}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
  Allocations_CloudZone_1:
    type: Allocations.CloudZone
    properties:
      accountType: avilb
      constraints:
        - tag: ${input.env}
  ALB_APPLICATION_PERSISTENCE_PROFILE:
    type: Idem.AVILB.PROFILES.APPLICATION_PERSISTENCE_PROFILE
    properties:
      name: apache-appprofile-${uuid()}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      description: Managed by Aria Automation
      persistence_type: PERSISTENCE_TYPE_CLIENT_IP_ADDRESS
      server_hm_down_recovery: HM_DOWN_PICK_NEW_SERVER
      ip_persistence_profile:
        ip_mask: 24
        ip_persistent_timeout: 20
  SecurityGroup:
    type: Cloud.SecurityGroup
    properties:
      constraints:
        - tag: ${input.env}
      securityGroupType: existing
  VIP:
    type: Idem.AVILB.APPLICATIONS.VS_VIP
    properties:
      name: web-vip-${uuid()}
      description: Managed by Aria Automation
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      vip:
        - vip_id: 0
          auto_allocate_ip: true
          ipam_network_subnet:
            network_ref: ${resource.Cloud_vSphere_Network_1.resourceName}
  VirtualService:
    type: Idem.AVILB.APPLICATIONS.VIRTUAL_SERVICE
    properties:
      name: web-vs-${uuid()}
      description: Managed by Aria Assembler
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      cloud_type: CLOUD_VCENTER
      services:
        - port: ${input.port}
      vsvip_ref: ${resource.VIP[0].name}
      pool_ref: ${resource.Pool[0].name}
  Pool:
    type: Idem.AVILB.APPLICATIONS.POOL
    properties:
      name: web-pool-${uuid()}
      description: Managed by Aria Automation
      count: ${input.clusterSize == "small" ? 0:1}
      account: ${resource.Allocations_CloudZone_1.selectedCloudAccount.name}
      default_server_port: ${input.port}
      health_monitor_refs:
        - ${resource.ALB_HEALTH_MONITOR.name}
      lb_algorithm: ${input.lb_algorithm}
      application_persistence_profile_ref: ${resource.ALB_APPLICATION_PERSISTENCE_PROFILE.name}
      servers: '${map_by(resource.Web_Server[*].address, address => {"ip": {"addr": address, "type" : "V4"}})}'
  Web_Server:
    type: Cloud.vSphere.Machine
    properties:
      name: web
      count: 2
      flavor: small
      imageRef: https://cloud-images.ubuntu.com/releases/18.04/release/ubuntu-18.04-server-cloudimg-amd64.ova
      cloudConfig: |
        packages:
          - apache2
          - open-vm-tools

        runcmd:
          ### update the top of the web page to the web servers resource name
          - sed -i 's/Apache2 Ubuntu Default Page/${self.resourceName}/g' /var/www/html/index.html
          
          ### Restart services
          - systemctl reload apache2
          - systemctl restart apache2
          
          ### Log completion
          - echo 'Cloud-init is done!' >> /tmp/finished.txt
      networks:
        - network: ${resource.Cloud_vSphere_Network_1.id}
          securityGroups:
            - ${resource.SecurityGroup.id}
  Cloud_vSphere_Network_1:
    type: Cloud.vSphere.Network
    properties:
      networkType: existing
      constraints:
        - tag: net:vm