ansible ec2 实例创建不等待分配公共 IP

Question

我正在尝试使用 ansible playbook 启动 ec2 实例。

它能够启动一个实例，但随后。它不会等到公共 IP 分配给虚拟机。

- name: Start an instance with a public IP address
  amazon.aws.ec2_instance:
    name: "{{ ansible_test_instance_name }}"
    key_name: "{{ ansible_keypair_name }}"
    vpc_subnet_id: "{{ ansible_test_subnet }}"
    region: "{{ region }}"
    aws_access_key: "{{ lookup('env', 'aws_access_key_id') }}"
    aws_secret_key: "{{ lookup('env', 'aws_secret_access_key') }}"    
    instance_type: "{{ ansible_test_instance_type }}"
    security_group: "{{ ansible_security_group_name }}"
    wait: true
    wait_timeout: 20
    count: 1
    network:
      assign_public_ip: true
    image_id: "{{ ansible_test_image }}"
    tags:
      Environment: Testing
  register: ec2

- name: Add the newly created EC2 instance(s) to host group
  lineinfile: dest={{ hostpath }}
              regexp={{ item.public_ip }} 
              insertafter="[local]" 
              line="{{ item.public_ip }} {{hoststring}}"
              state=present
  with_items: "{{ec2.instances}}"

当我运行这个时，我得到

TASK [ec2 : Add the newly created EC2 instance(s) to host group] ***************************************************************************************************************************************************
task path: /app/infra/roles/ec2/tasks/ec2.yml:21
fatal: [localhost]: FAILED! => {
    "msg": "The task includes an option with an undefined variable. The error was: 'dict object' has no attribute 'public_ip'\n\nThe error appears to be in '/app/infra/roles/ec2/tasks/ec2.yml': line 21, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- name: Add the newly created EC2 instance(s) to host group\n  ^ here\n"
}

寄存器变量输出

            "private_ip_address": "172.31.3.218",
            "product_codes": [],
            "public_dns_name": "",
            "root_device_name": "/dev/sda1",
            "root_device_type": "ebs",
            "security_groups": [
                {
                    "group_id": "sg-0f3c9e97c545d3447",
                    "group_name": "ansible_test_sg"
                }

虽然我们一直在等待，但我猜它不会等到公共 IP 分配给虚拟机。我也在 aws 控制台上看到一个 public_ip 。 我缺少什么？有人可以帮忙吗？ 预先感谢

Answer 1

我也遇到了同样的问题，添加

state: running

解决了问题。

    - name: Create ephemeral EC2 instance(s)
  ec2_instance:
    profile: "{{ item.aws_profile | default(omit) }}"
    region: "{{ item.region | default(omit) }}"
    filters: "{{ platform_filters }}"
    instance_type: "{{ item.instance_type }}"
    image_id: "{{ platform_image_id }}"
    vpc_subnet_id: "{{ item.vpc_subnet_id }}"
    security_groups: "{{ platform_security_groups }}"
    network:
      assign_public_ip: "{{ item.assign_public_ip }}"
    volumes: "{{ item.volumes }}"
    key_name: "{{ (item.key_inject_method == 'ec2') | ternary(item.key_name, omit) }}"
    tags: "{{ platform_tags }}"
    user_data: "{{ platform_user_data }}"
    wait: true
    state: running

Answer 2

带来了另一种解决方法。我做了以下事情。

- name: Pause for 30 seconds to start instance
  ansible.builtin.pause:
    seconds: 30

- name: Check if instance is available
  amazon.aws.ec2_instance_info:
    region: "{{ region }}"
    aws_access_key: "{{ lookup('env', 'aws_access_key_id') }}"
    aws_secret_key: "{{ lookup('env', 'aws_secret_access_key') }}"
    instance_ids: "{{ ec2.instance_ids }}"
  register: ec2_node_info

- name: Wait for SSH to come up
  local_action: wait_for
                host={{ item.public_ip_address }}
                port=22
                state=started
  with_items: "{{ec2_node_info.instances}}"

并让它发挥作用

Answer 3

在

state: running

任务中使用

ec2_instance

，然后使用

wait_for

，似乎很稳健：

- name: Wait for EC2 instance(s) to be ready
  ansible.builtin.wait_for:
    host: "{{ item.public_dns_name }}"
    port: 22
    search_regex: OpenSSH
    delay: 0
    sleep: 5
  loop: "{{ ec2.instances }}"

（Ansible：启动和运行书）