通过 .ebextensions 安装 pip 包

Question

我在通过 ebextensions 安装软件包 psycopg2 时遇到问题。

00_software.config

packages:
  yum:
    git: []
    htop: []
  pip:
    psycopg2: []

01_setup_pg_activity.config

commands:
    clone:
        command: git clone https://github.com/dalibo/pg_activity.git
    install_psycopg2:
        command: cd pg_activity && python setup.py install

或者，这个我也试过了，没用

commands:
    clone:
        command: git clone https://github.com/dalibo/pg_activity.git
    install_psycopg2:
        command: pip install psycopg2
    install_psycopg2:
        command: cd pg_activity && python setup.py install

其他软件可以安装但是pip包不会

Traceback (most recent call last):
  File "/usr/local/bin/pg_activity", line 4, in <module>
    __import__('pkg_resources').run_script('pg-activity==1.6.1', 'pg_activity')
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 742, in run_script
    self.require(requires)[0].run_script(script_name, ns)
  File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1510, in run_script
    exec(script_code, namespace, namespace)
  File "/usr/local/lib/python2.7/site-packages/pg_activity-1.6.1-py2.7.egg/EGG-INFO/scripts/pg_activity", line 42, in <module>

ImportError: No module named psycopg2

我必须手动进入运行 sudo pip install psycopg2 才能正确安装。我如何在构建过程中执行此操作？

Answer 1

将 EB 与 AL2 一起使用（python env；尚未在 RoR 上进行测试），已成功安装 pg_activity。

对于软件包（仅显示 psycopg2）我有

packages: 
    yum:
        python-psycopg2: []

commands 配置文件是 (20_setup_pg_activity.config):

commands:
    05_clone:
        command: git clone https://github.com/dalibo/pg_activity.git    
    10_install_pg_activity:
        command: cd pg_activity && python setup.py install

在环境设置之后，我登录到 EB 实例以检查 pg_activity 是否存在（仅显示部分）：

ec2-user@ip-172-31-82-127 ~]$ pg_activity --help
Usage: pg_activity [options]

htop like application for PostgreSQL server activity monitoring.

Options:
  --version             show program's version number and exit
  -U USERNAME, --username=USERNAME

Answer 2

如果您使用的是虚拟环境并且 EB CLI，则在虚拟环境处于活动状态时，只需创建 requirements.txt 就足够了。 EB CLI 在部署时处理包安装。

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