您可以通过Ansible playbooks自动完成阿里云资源的创建、配置和部署。本教程指引您如何使用Ansible在阿里云上创建一台ECS实例。

教程概览

本教程将创建和配置ECS实例的配置拆分成不同的Ansible playbooks,方便您了解如何通过YAML格式声明配置。您可以参考提供的完整示例,运行Playbook创建一台ECS实例。

前提条件

确保您已经安装并配置了阿里云Ansible模块。详情信息,请参见安装和配置Ansible

创建专有网络

在创建ECS实例时,您首先需要创建一个专有网络(VPC)。

以下Ansible playbook展示了如何创建一个VPC。

- name: Create a new AlibabaCloud VPC resource
    ali_vpc:
      alicloud_region: '{{ alicloud_region }}'
      cidr_block: '{{ vpc_cidr }}'
      vpc_name: '{{ vpc_name }}'
    when: not vpcs.vpcs
    register: vpc

创建交换机

在创建ECS实例时,您必须要指定ECS实例所属的交换机。

以下Ansible playbook展示了如何在VPC中创建一个交换机。

- name: Create a new Alibaba Cloud VSwitch resource
    ali_vswitch:
      alicloud_region: '{{ alicloud_region }}'
      alicloud_zone: '{{ alicloud_zone }}'
      state: 'present'
      cidr_block: '{{ vswitch_cidr }}'
      vswitch_name: '{{ vswitch_name }}'
      description: '{{ vswitch_description }}'
      vpc_id: '{{vpcs.vpcs.0.id}}'
    register: vswitch

创建安全组

以下Ansible playbook展示了如何创建一个安全组并将安全组和VPC关联。

- name: Create a security group
    ali_security_group:
      alicloud_region: '{{ alicloud_region }}'
      state: 'present'
      name: '{{ group_name }}'
      description: '{{ group_description }}'
      vpc_id: '{{vpcs.vpcs.0.id}}'
      rules: '{{ group_inboundRules }}'
      rules_egress: '{{ group_outboundRules }}'
    register: group

创建ECS实例

以下Ansible playbook展示了如何创建一台ECS实例。

- name: Create an ECS instance
    ali_instance:
      alicloud_region: '{{ alicloud_region }}'
      alicloud_zone: '{{ alicloud_zone }}'
      image_id: '{{ image }}'
      instance_type: '{{ type }}'
      instance_name: '{{ instance_name }}'
      description: '{{ description }}'
      host_name: '{{ host_name }}'
      key_name: '{{ key_name }}'
      vswitch_id: '{{vswitch.vswitch.id}}'
      security_groups: '{{group.group.id}}'
      count: '{{count}}'
      allocate_public_ip: '{{ allocate_public_ip }}'
      internet_charge_type: '{{ internet_charge_type }}'
      max_bandwidth_in: '{{ max_bandwidth_in }}'
      max_bandwidth_out: '{{ max_bandwidth_out }}'
      tags: '{{tags}}'
    register: ecs
  - name: output information of the vm
    debug:
      msg: "The created vm is {{ ecs }}."

运行Playbook创建一台ECS实例

完成以下操作,通过Playbook创建一台ECS实例:

  1. 创建一个名称为alicloud_create_ecs.yml的文件,然后通过VI 编辑器打开。
    vi alicloud_create_ecs.yml
  2. 在编辑模式下,将以下完整的Playbook示例粘贴到alicloud_create_ecs.yml文件中。
    说明 请您根据实际需要,参考以下示例更改ECS的配置信息。
    ---
    
    - name: Create a new VPC 
      hosts: localhost
      connection: local
      vars: 
        vpc_cidr: "172.16.0.0/12"
        vpc_name: "VPC_From_Ansible"
        vpc_description: "Create a new VPC resource via Ansible example alicloud-ecs-vpc."
        alicloud_region: cn-hangzhou
        alicloud_zone: cn-hangzhou-e
        vswitch_cidr: "172.16.1.0/24"
        vswitch_name: "VSwitch_From_Ansible"
        vswitch_description: "Create a new VSwitch resource via Ansible example alicloud-ecs-vpc."
        group_name: "Security_Group_From_Ansible"
        group_description: "Create a new security group resource via Ansible example alicloud-ecs-vpc."
        group_inboundRules:
          - ip_protocol: tcp
            port_range: 22/22
            source_cidr_ip: 0.0.0.0/0
    t_cidr_ip: 47.89.23.33/32
            priority: 2
        image: centos_6_8_64_40G_base_20170222.vhd
        type: ecs.n4.small
        instance_name: newtests2
        description: travis-ansible-instance2
        host_name: myhost
        count: 3
        allocate_public_ip: True
        internet_charge_type: PayByBandwidth
        max_bandwidth_in: 200
        max_bandwidth_out: 10
        key_name: ECS_KEY
        tags:
          role: frontend
      tasks: 
      - name: Get the existing vpc
        ali_vpc_facts:
          region: '{{alicloud_region}}'
          vpc_name: '{{vpc_name}}'
        register: vpcs
      - name: Create a new alicloud VPC resource
        ali_vpc:
          alicloud_region: '{{ alicloud_region }}'
          cidr_block: '{{ vpc_cidr }}'
          vpc_name: '{{ vpc_name }}'
        when: not vpcs.vpcs
        register: vpc
      # - name: output information of the vpc
      #   debug:
      #     msg: "The created vpc is {{ vpc }}."
      - name: Create a new alicloud VSwitch resource
        ali_vswitch:
          alicloud_region: '{{ alicloud_region }}'
          alicloud_zone: '{{ alicloud_zone }}'
          state: 'present'
          cidr_block: '{{ vswitch_cidr }}'
          vswitch_name: '{{ vswitch_name }}'
          description: '{{ vswitch_description }}'
          vpc_id: '{{vpcs.vpcs.0.id}}'
        register: vswitch
      # - name: output information of the vpc
      #   debug:
      #     msg: "The created vpc is {{ vpc }}."
      # - name: output information of the vSwitch
      #   debug:
      #     msg: "The created vpc is {{ vswitch }}."
      # - name: Get the existing vpc
      #   ali_vpc_facts:
      #     region: '{{alicloud_region}}'
      #     vpc_name: '{{vpc_name}}'
      #   register: vpcs
    
      - name: Creating security group
        ali_security_group:
          alicloud_region: '{{ alicloud_region }}'
          state: 'present'
          name: '{{ group_name }}'
          description: '{{ group_description }}'
          vpc_id: '{{vpcs.vpcs.0.id}}'
          rules: '{{ group_inboundRules }}'
          rules_egress: '{{ group_outboundRules }}'
        register: group
    
      - name: Creating an ECS instance
        ali_instance:
          alicloud_region: '{{ alicloud_region }}'
          alicloud_zone: '{{ alicloud_zone }}'
          image_id: '{{ image }}'
          instance_type: '{{ type }}'
          instance_name: '{{ instance_name }}'
          description: '{{ description }}'
          host_name: '{{ host_name }}'
          key_name: '{{key_name}}'
          vswitch_id: '{{vswitch.vswitch.id}}'
          security_groups: '{{group.group.id}}'
          count: '{{count}}'
          allocate_public_ip: '{{ allocate_public_ip }}'
          internet_charge_type: '{{ internet_charge_type }}'
          max_bandwidth_in: '{{ max_bandwidth_in }}'
          max_bandwidth_out: '{{ max_bandwidth_out }}'
          tags: '{{tags}}'
        register: ecs
      - name: output information of the vm
        debug:
          msg: "The created vm is {{ ecs }}."
  3. 保存后,退出编辑模式。
  4. 运行Ansible playbook创建ECS实例。
    ansible-playbook alicloud_create_ecs.yml