linux - 运行 playbook 进行 apache 状态检查时抛出错误

Question

我写了下面的剧本来检查 apache 的运行状态:

#Demo for testing ansible playbook.
- hosts: lab
  become_user: root
  serial: 1
  tasks:
  #purpose of this task is to check apache running status
        -name: verify apache running status
         shell: if ps -eaf | egrep 'apache|http'|grep -v grep > /dev/null ; then echo 'process_running'; else echo 'process_not_running';fi
         ignore_errors: true
         register: appprocesscheck
 # this task is decision,play will fail/quit,if application is running
        -name: decision point to start patching
         fail: msg="{{ inventory_hostname }} have running Application.Please stop the application first, then attempt patching."
         when: appprocesscheck.stdout == "process_running"

我收到以下错误。请帮我解决这个问题。

[ansibleUser@blb44cehanstst ansible]$ ansible-playbook testweb.yml
ERROR! Syntax Error while loading YAML.


The error appears to have been in '/etc/ansible/testweb.yml': line 13, column 15, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:

        -name: verify apache running status
         shell: if ps -eaf | egrep 'apache|http'|grep -v grep > /dev/null ; then echo 'process_running'; else echo 'process_not_running';fi
              ^ here

[ansibleUser@blb44cehanstst ansible]$

Answer 1

您有一个 YAML 语法错误。

在两个任务中的 - 和 name 之间放置一个空格。

- name: verify apache running status
  shell: if ps -eaf | egrep 'apache|http'|grep -v grep > /dev/null ; then echo 'process_running'; else echo 'process_not_running';fi
  ignore_errors: true
  register: appprocesscheck
- name: decision point to start patching
  fail: msg="{{ inventory_hostname }} have running Application.Please stop the application first, then attempt patching."
  when: appprocesscheck.stdout == "process_running"