使用ansible从源代码安装python包

我有以下ansible剧本：

- hosts: all
  gather_facts: false
  sudo: true
  tasks:
  - name: Pull sources from the repository.
    git: repo=https://github.com/mongodb-labs/mongo-connector.git dest=/srv/checkout/mongo-connector

- hosts: all
  sudo: true
  tasks:
  - name: copy local config.json to remote if exists
    local_action: stat path="./config.json"
    register: file
    ignore_errors: True
  - name: copy file if it exists
    copy: src=./config.json dest=/srv/checkout/mongo-connector/config.json force=yes
    when: file.stat.exists

- hosts: all
  sudo: true
  tasks:
  - name: copy local install_mc.sh to remote if exists
    local_action: stat path="./install_mc.sh"
    register: file
    ignore_errors: True
  - name: copy installation scripts
    copy: src=./install_mc.sh dest=/srv/checkout/mongo-connector/install_mc.sh mode=755
    when: file.stat.exists
  - name: Execute script
    script: /srv/checkout/mongo-connector/install_mc.sh

在这里,我从github中提取存储库,然后将config.json复制到我克隆git存储库的文件夹中.之后我需要运行python setup.py install来安装软件包,然后在同一目录下运行python setup.py install_service.

我将两个安装命令放在一个shell文件install_mc.sh中,并将该文件复制到我克隆存储库的同一目录中.

git存储库克隆在/ srv / checkout / mongo-connector /中.

以下是目录布局：

vagrant@vagrant-ubuntu-trusty-64:/srv/checkout/mongo-connector$pwd
/srv/checkout/mongo-connector

vagrant@vagrant-ubuntu-trusty-64:/srv/checkout/mongo-connector$ls
CHANGELOG.rst  config.json  ez_setup.py  install_mc.sh  LICENSE  mongo_connector  README.rst  scripts  setup.cfg  setup.py  tests

但后来我使用vagrant运行ansible脚本我在执行install_mc.sh期间遇到了followin错误：

==> connector: TASK [Execute script] **********************************************************
==> connector: task path: /vagrant/provisioning/mc_playbook.yml:36
==> connector: fatal: [127.0.0.1]: FAILED! => {"changed": true, "failed": true, "rc": 2, "stderr": "chmod: cannot access ‘./setup.py’: No such file or directory\npython: can't open file './setup.py': [Errno 2] No such file or directory\npython: can't open file './setup.py': [Errno 2] No such file or directory\n", "stdout": "", "stdout_lines": []}
==> connector: 
==> connector: NO MORE HOSTS LEFT *************************************************************
==> connector:  to retry, use: --limit @mc_playbook.retry
==> connector: 
==> connector: PLAY RECAP *********************************************************************
==> connector: 127.0.0.1                  : ok=10   changed=4    unreachable=0    failed=1 

install_mc.sh的内容是：

#!/usr/bin/env bash

chmod +x ./setup.py
python ./setup.py install
python ./setup.py install_service

我该如何纠正这个问题？

解决方法:

我认为问题在于您假设install_mc脚本是从您复制到的目录中执行的,但script模块实际上是从本地计算机读取的,并在远程节点的主目录中执行该脚本.

The script module takes the script name followed by a list of space-delimited arguments. The local script at path will be transferred to the remote node and then executed. The given script will be processed through the shell environment on the remote node. This module does not require python on the remote system, much like the raw module.

正如DeHaan后来建议的那样,使用command模块运行两个setup.py命令可能会更好.那个允许你指定一个目录(使用chdir选项).

chmod可能是不必要的,因为1)你使用python二进制文件调用脚本,2)mongo维护者可能在他们的git存储库中建立了适当的权限.

原文地址：https://codeday.me/bug/20190628/1312477.html