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Ansible add EC2与add_主机连接,但连接会导致缺少Python错误

ansible-inventory ansible amazon-ec2 amazon-web-services

edesz · 技术社区 · 6 年前

Ansible ec2 documentation . 我可以用标记成功地创建实例。然后我使用 add_host .

这样做之后,我在尝试配置新创建的实例时遇到问题。在Ansible play中,我想通过实例的标记名来指定实例。如。 hosts: <tag_name_here> ,但我得到一个错误。

以下是我到目前为止所做的:

inventory/
   staging/
      hosts
      group_vars/
         all/
            all.yml

site.yml

我的 inventory/staging/hosts 文件是

[local]
localhost ansible_connection=local  ansible_python_interpreter=/home/localuser/ansible_ec2/.venv/bin/python

我的 inventory/staging/group_vars/all/all.yml

---
ami_image: xxxxx
subnet_id: xxxx
region: xxxxx
launched_tag: tag_Name_NginxDemo

这是我的答案 site.yml

- name: Launch instance
  hosts: localhost
  gather_facts: no
  tasks:
    - ec2:
         key_name: key-nginx
         group: web_sg
         instance_type: t2.micro
         image: "{{ ami_image }}"
         wait: true
         region: "{{ region }}"
         vpc_subnet_id: "{{ subnet_id }}"
         assign_public_ip: yes
         instance_tags:
           Name: NginxDemo
           exact_count: 1
         count_tag:
           Name: NginxDemo
           exact_count: 1
      register: ec2

    - name: Add EC2 instance to inventory group
      add_host:
        hostname: "{{ item.public_ip }}"
        groupname: tag_Name_NginxDemo
        ansible_user: centos_user
        ansible_become: yes
      with_items: "{{ ec2.instances }}"

- name: Configure EC2 instance in launched group
  hosts: tag_Name_NginxDemo
  become: True
  gather_facts: no
  tasks:
    - ping:

$ cd /home/localuser/ansible_ec2
$ source .venv/bin/activate
$ ansible-playbook -i inventory/staging site.yml -vvv`

这就创建了EC2实例——第一个剧本工作正常。然而,第二个重放给出了以下错误

TASK [.....] ******************************************************************
The authenticity of host 'xx.xxx.xxx.xx (xx.xxx.xxx.xx)' can't be established.
ECDSA key fingerprint is XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.
Are you sure you want to continue connecting (yes/no)? yes
fatal: [xx.xxx.xxx.xx]: FAILED! => {"changed": false, "module_stderr": 
"Shared connection to xx.xxx.xxx.xx closed.\r\n", "module_stdout": "/bin/sh: 
1: /usr/bin/python: not found\r\n", "msg": "MODULE FAILURE", "rc": 127}

我遵循了

this SO question add_hosts
here 设置 gather_facts: False ,但这仍然不允许播放正常。

如何使用标记名来定位EC2主机?

附加信息

这是我唯一的剧本。我看到这条消息需要Python,但是我不能在实例上安装Python,因为我在剧本中无法连接到它 Configure EC2 instance in launched group …如果我可以建立连接,那么我可以安装Python(如果这是问题的话)。不过,我不知道如何连接到实例。

编辑2:

这是我运行Ansible的本地主机上的Python信息

我在一个Python的venv里运行Ansible。

$ python --version
Python 2.7.15rc1

$ which python
~/ansible_ec2/.venv/bin/python

以下是我在Python venv中安装的Ansible的详细信息

ansible 2.6.2
  config file = /home/localuser/ansible_ec2/ansible.cfg
  configured module search path = [u'/home/localuser/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']
  ansible python module location = /home/localuser/ansible_ec2/.venv/local/lib/python2.7/site-packages/ansible
  executable location = /home/localuser/ansible_ec2/.venv/bin/ansible
  python version = 2.7.15rc1 (default, xxxx, xxxx) [GCC 7.3.0]

1 回复 | 直到 6 年前

edesz 6 年前

好吧,经过大量的搜索,我找到了一个可行的解决方法 here . 基本上,这个解决方案使用 lineinfile 模块并将新的EC2实例详细信息添加到 hosts 文件是永久的…不只是在内存中播放 add_host 添加主机 模块。

编辑:

我在 衬板

- name: Add EC2 instance to inventory group
  - lineinfile: line="{{ item.public_ip }} ansible_python_interpreter=/usr/bin/python3" insertafter=EOF dest=./inventory/staging/hosts
  with_items: "{{ ec2.instances }}"