弹性豆茎上的psycopg2-无法部署应用程序

Question

我正在将我的第一个应用程序（Flask）部署到EB，遇到了一个障碍。使用PostgreSQL需要安装psycopg2，但我不知道如何让它运行。

我在这篇文章（Amazon Elastic Beanstalk上的Psycopg2）和这篇文章中都看到了(https://realpython.com/blog/python/deploying-a-django-app-to-aws-elastic-beanstalk/)我需要添加一个文件名。elasticbeanstalk/01_包装。使用以下代码配置：

packages:
  yum:
    postgresql-devel: []

我尝试了不同的postgresql93-devel:[]变体，但仍然没有成功。下面是我的错误日志。

[2015-11-16T21:03:24.749Z] INFO  [2680]  - [Application update/AppDeployStage0/AppDeployPreHook/03deploy.py] : Starting activity...
[2015-11-16T21:03:27.024Z] INFO  [2680]  - [Application update/AppDeployStage0/AppDeployPreHook/03deploy.py] : Activity execution failed, because: Collecting psycopg2==2.6.1 (from -r /opt/python/ondeck/app/requirements.txt (line 1))
    Using cached psycopg2-2.6.1.tar.gz
      Complete output from command python setup.py egg_info:
      running egg_info
      creating pip-egg-info/psycopg2.egg-info
      writing top-level names to pip-egg-info/psycopg2.egg-info/top_level.txt
      writing dependency_links to pip-egg-info/psycopg2.egg-info/dependency_links.txt
      writing pip-egg-info/psycopg2.egg-info/PKG-INFO
      writing manifest file 'pip-egg-info/psycopg2.egg-info/SOURCES.txt'
      warning: manifest_maker: standard file '-c' not found

      Error: pg_config executable not found.

      Please add the directory containing pg_config to the PATH
      or specify the full executable path with the option:

          python setup.py build_ext --pg-config /path/to/pg_config build ...

      or with the pg_config option in 'setup.cfg'.

      ----------------------------------------
  Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-z20gvx7_/psycopg2
  2015-11-16 21:03:27,010 ERROR    Error installing dependencies: Command '/opt/python/run/venv/bin/pip install -r /opt/python/ondeck/app/requirements.txt' returned non-zero exit status 1
  Traceback (most recent call last):
    File "/opt/elasticbeanstalk/hooks/appdeploy/pre/03deploy.py", line 22, in main
      install_dependencies()
    File "/opt/elasticbeanstalk/hooks/appdeploy/pre/03deploy.py", line 18, in install_dependencies
      check_call('%s install -r %s' % (os.path.join(APP_VIRTUAL_ENV, 'bin', 'pip'), requirements_file), shell=True)
    File "/usr/lib64/python2.7/subprocess.py", line 540, in check_call
      raise CalledProcessError(retcode, cmd)
  CalledProcessError: Command '/opt/python/run/venv/bin/pip install -r /opt/python/ondeck/app/requirements.txt' returned non-zero exit status 1 (ElasticBeanstalk::ExternalInvocationError)
caused by: Collecting psycopg2==2.6.1 (from -r /opt/python/ondeck/app/requirements.txt (line 1))
    Using cached psycopg2-2.6.1.tar.gz
      Complete output from command python setup.py egg_info:
      running egg_info
      creating pip-egg-info/psycopg2.egg-info
      writing top-level names to pip-egg-info/psycopg2.egg-info/top_level.txt
      writing dependency_links to pip-egg-info/psycopg2.egg-info/dependency_links.txt
      writing pip-egg-info/psycopg2.egg-info/PKG-INFO
      writing manifest file 'pip-egg-info/psycopg2.egg-info/SOURCES.txt'
      warning: manifest_maker: standard file '-c' not found

      Error: pg_config executable not found.

      Please add the directory containing pg_config to the PATH
      or specify the full executable path with the option:

          python setup.py build_ext --pg-config /path/to/pg_config build ...

      or with the pg_config option in 'setup.cfg'.

      ----------------------------------------
  Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-z20gvx7_/psycopg2
  2015-11-16 21:03:27,010 ERROR    Error installing dependencies: Command '/opt/python/run/venv/bin/pip install -r /opt/python/ondeck/app/requirements.txt' returned non-zero exit status 1
  Traceback (most recent call last):
    File "/opt/elasticbeanstalk/hooks/appdeploy/pre/03deploy.py", line 22, in main
      install_dependencies()
    File "/opt/elasticbeanstalk/hooks/appdeploy/pre/03deploy.py", line 18, in install_dependencies
      check_call('%s install -r %s' % (os.path.join(APP_VIRTUAL_ENV, 'bin', 'pip'), requirements_file), shell=True)
    File "/usr/lib64/python2.7/subprocess.py", line 540, in check_call
      raise CalledProcessError(retcode, cmd)
  CalledProcessError: Command '/opt/python/run/venv/bin/pip install -r /opt/python/ondeck/app/requirements.txt' returned non-zero exit status 1 (Executor::NonZeroExitStatus)

很明显，我需要安装psycopg2，但我不确定我还可以采取哪些其他步骤来实现这一点。

Answer 1

我解决了，你需要先打开你的EC2实例，然后像这样安装

sudo yum install postgresql-devel

然后部署您的EB