amazon-web-services - 安塞 bool : Execute commands on newly created EC2 instance

Question

我有一个 Ansible 配置，正在其中创建 EC2 实例。实例准备就绪后，我想禁用定期 apt 更新并等待当前更新过程完成。每当我在 yml 文件中添加配置时，它都会在本地系统上执行该命令。我做错了什么？

yml 文件:

---
  - name: Provision an EC2 Instance
    hosts: localhost
    connection: local
    gather_facts: False
    tags: provisioning
 tasks:

      - name: Create New security group with below given name
        local_action:
          module: ec2_group
          name: "{{ security_group }}"
          description: Security Group for Newly Created EC2 Instance
          region: "{{ region }}"
          rules:
            - proto: tcp
              from_port: 22
              to_port: 22
              cidr_ip: 0.0.0.0/0
            - proto: tcp
              from_port: 80
              to_port: 80
              cidr_ip: 0.0.0.0/0
          rules_egress:
            - proto: all
              cidr_ip: 0.0.0.0/0


      - name: Launch the new t2 micro EC2 Instance
        local_action: ec2
                      group={{ security_group }}
                      instance_type={{ instance_type}}
                      image={{ image }}
                      wait=true
                      region={{ region }}
                      keypair={{ keypair }}
                      count={{count}}
        register: ec2

现在，在此之后，我等待 ssh 完成并希望在新创建的 Ec2 实例上传递以下命令:

- name: Disable timers for unattended upgrade, so that none will be triggered by the `date -s` call.
  raw: systemctl disable --now {{item}}
  with_items:
    - 'apt-daily.timer'
    - 'apt-daily-upgrade.timer'

- name: Reload systemctl daemon to apply the new changes
  raw: systemctl daemon-reload

- name: Purge autoupdate
  raw: apt -y purge unattended-upgrades    

- name: Update apt cache
  raw: apt -y update

但是将它们添加为原始数据不起作用，甚至将它们添加为命令也不起作用。

Answer 1

您发布的代码的第一部分是通过从本地系统调用 AWS API 来配置新的 EC2 实例:

  - name: Provision an EC2 Instance
    hosts: localhost
    connection: local
    gather_facts: False
...
 - name: Create New security group with below given name
   local_action:
     module: ec2_group

请注意指定在本地运行操作的 local_action 部分。另外，您的目标是localhost。

如果您随后想要配置新系统，可以将其添加到主机组并运行一些配置步骤。例如，在配置 EC2 实例步骤之后添加以下内容，以将新实例的公共(public) IP 添加到名为 ec2hosts 的主机组:

   - name: Add instance public IP to host group
     add_host: hostname={{ item.public_ip }} groups=ec2hosts
     loop: "{{ ec2.instances }}"

现在您可以通过定位主机组来配置主机:

- hosts: ec2hosts
  name: configuration play
  user: ec2-user
  gather_facts: true
  tasks:
  - name:  Disable timers for unattended upgrade, so that none will be triggered by the `date -s` call.
    raw: systemctl disable --now {{item}}
    with_items:
      - 'apt-daily.timer'
      - 'apt-daily-upgrade.timer'

  - name: Reload systemctl daemon to apply the new changes
    raw: systemctl daemon-reload

  - name: Purge autoupdate
    raw: apt -y purge unattended-upgrades    

  - name: Update apt cache
    raw: apt -y update

总而言之，您首先从本地系统创建实例，等待其启动，将其 IP 地址添加到主机组，然后通过针对该主机组运行 ansible 来运行其他配置步骤。为此，请确保使用私钥已添加到 SSH 代理的 SSH key 对。另外，请确保在公有子网中启动 EC2 实例。

请参阅Ansible Amazon Web Service Guide .