python - 无法在 Elastic Beanstalk 上部署 Django 应用程序

Question

在经历了很多障碍之后，我终于将我的代码上传到 AWS Beanstalk，我希望有人可以帮助我解决下一个我认为没有解决方案的障碍。

在我上传(使用'git aws.push')之后，它总是会失败。然后我查看了日志，似乎(作为菜鸟)问题是这样的:

'Target WSGI script not found or unable to stat: /opt/python/current/app/topdish'

我认为这确实是正确的，我希望它应该位于:'/opt/python/ondeck/app/topdish/wsgi.py'

我不知道如何配置它，因为我认为我已经在“.ebextensions”中的“topdish.config”中正确配置了它。

container_commands:
  01_migrate:    
    command: "python manage.py syncdb --noinput"
    leader_only: true

option_settings:
  - namespace: aws:elasticbeanstalk:container:python
    option_name: WSGIPath
    value: topdish/wsgi.py
  - option_name: DJANGO_SETTINGS_MODULE
    value: topdish.settings

我在日志中看到的另一个问题是:

'[2014-11-26T23:11:00.070Z] INFO  [4168]  - [CMD-AppDeploy/AppDeployStage0/EbExtensionPostBuild] : Activity execution failed, because: command failed with error code 1: Error occurred during build: Command 01_migrate failed (Executor::NonZeroExitStatus)'

可能相关，也可能不相关。

相关日志:

---

/var/log/eb-activity.log

inflating: /opt/python/ondeck/app/surveys/static/surveys/css/normalize.css  
inflating: /opt/python/ondeck/app/surveys/static/surveys/css/normalize.min.css  
 creating: /opt/python/ondeck/app/surveys/static/surveys/img/
inflating: /opt/python/ondeck/app/surveys/static/surveys/img/star-empty.png  
inflating: /opt/python/ondeck/app/surveys/static/surveys/img/star-filled.png  
 creating: /opt/python/ondeck/app/surveys/static/surveys/js/
inflating: /opt/python/ondeck/app/surveys/static/surveys/js/data-access-layer.js  
inflating: /opt/python/ondeck/app/surveys/static/surveys/js/gklib.js  
inflating: /opt/python/ondeck/app/surveys/static/surveys/js/main.js  
inflating: /opt/python/ondeck/app/surveys/static/surveys/js/plugins.js  
inflating: /opt/python/ondeck/app/surveys/static/surveys/js/polyfils.js  
inflating: /opt/python/ondeck/app/surveys/static/surveys/js/tools.js  
 creating: /opt/python/ondeck/app/surveys/static/surveys/js/vendor/
inflating: /opt/python/ondeck/app/surveys/static/surveys/js/vendor/jquery-1.11.0.min.js  
inflating: /opt/python/ondeck/app/surveys/static/surveys/js/vendor/modernizr-2.6.2.min.js  
 creating: /opt/python/ondeck/app/surveys/templates/
 creating: /opt/python/ondeck/app/surveys/templates/surveys/
inflating: /opt/python/ondeck/app/surveys/templates/surveys/index.html  
inflating: /opt/python/ondeck/app/surveys/templates/surveys/menu_detail.html  
inflating: /opt/python/ondeck/app/surveys/templates/surveys/venue_detail.html  
inflating: /opt/python/ondeck/app/surveys/tests.py  
inflating: /opt/python/ondeck/app/surveys/urls.py  
inflating: /opt/python/ondeck/app/surveys/views.py  
 creating: /opt/python/ondeck/app/templates/
 creating: /opt/python/ondeck/app/templates/admin/
inflating: /opt/python/ondeck/app/templates/admin/base_site.html  
 creating: /opt/python/ondeck/app/topdish/
extracting: /opt/python/ondeck/app/topdish/__init__.py  
inflating: /opt/python/ondeck/app/topdish/app.yaml  
inflating: /opt/python/ondeck/app/topdish/settings.py  
inflating: /opt/python/ondeck/app/topdish/urls.py  
inflating: /opt/python/ondeck/app/topdish/wsgi.py  
[2014-11-26T22:56:31.220Z] INFO  [3842]  - [CMD-AppDeploy/AppDeployStage0/AppDeployPreHook/03deploy.py] : Starting activity...
[2014-11-26T22:56:35.097Z] INFO  [3842]  - [CMD-AppDeploy/AppDeployStage0/AppDeployPreHook/03deploy.py] : Completed activity. Result:
  New python executable in /opt/python/run/venv/bin/python26
  Not overwriting existing python script /opt/python/run/venv/bin/python (you must use /opt/python/run/venv/bin/python26)
  Installing setuptools, pip...done.
  --use-mirrors has been deprecated and will be removed in the future. Explicit uses of --index-url and/or --extra-index-url is suggested.
  Requirement already satisfied (use --upgrade to upgrade): Django==1.7.1 in /opt/python/run/venv/lib/python2.6/site-packages (from -r /opt/python/ondeck/app/requirements.txt (line 1))
  Requirement already satisfied (use --upgrade to upgrade): django-uuidfield==0.5.0 in /opt/python/run/venv/lib/python2.6/site-packages (from -r /opt/python/ondeck/app/requirements.txt (line 2))
  Requirement already satisfied (use --upgrade to upgrade): djangorestframework==2.4.4 in /opt/python/run/venv/lib/python2.6/site-packages (from -r /opt/python/ondeck/app/requirements.txt (line 3))
  Requirement already satisfied (use --upgrade to upgrade): mysql-python==1.2.5 in /opt/python/run/venv/lib/python2.6/site-packages (from -r /opt/python/ondeck/app/requirements.txt (line 4))
  Cleaning up...
[2014-11-26T22:56:35.097Z] INFO  [3842]  - [CMD-AppDeploy/AppDeployStage0/AppDeployPreHook/04configen.py] : Starting activity...
[2014-11-26T22:56:37.788Z] INFO  [3842]  - [CMD-AppDeploy/AppDeployStage0/AppDeployPreHook/04configen.py] : Completed activity.
[2014-11-26T22:56:37.788Z] INFO  [3842]  - [CMD-AppDeploy/AppDeployStage0/AppDeployPreHook] : Completed activity. Result:
  Successfully execute directory: /opt/elasticbeanstalk/hooks/appdeploy/pre.
[2014-11-26T22:56:37.789Z] INFO  [3842]  - [CMD-AppDeploy/AppDeployStage0/EbExtensionPostBuild] : Starting activity...
[2014-11-26T22:56:40.111Z] INFO  [3842]  - [CMD-AppDeploy/AppDeployStage0/EbExtensionPostBuild] : Activity execution failed, because: command failed with error code 1: Error occurred during build: Command 01_migrate failed (Executor::NonZeroExitStatus)
at /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/executor-1.0/lib/executor/exec.rb:81:in `sh'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/executor-1.0/lib/executor/exec.rb:24:in `sh'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/cfn-wrapper.rb:51:in `call_cfn_script'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/cfn-wrapper.rb:28:in `run_config_sets'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/infrahooks/infra-embeddedpostbuild.rb:20:in `execute!'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/executable.rb:56:in `instance_eval'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/executable.rb:56:in `execute!'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command.rb:213:in `block (3 levels) in exec_stage'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:169:in `call'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:169:in `exec'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:126:in `timeout_exec'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:110:in `block in create'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:109:in `instance_eval'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:109:in `create'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command.rb:209:in `block (2 levels) in exec_stage'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command.rb:207:in `each'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command.rb:207:in `each_with_index'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command.rb:207:in `block in exec_stage'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:169:in `call'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:169:in `exec'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:126:in `timeout_exec'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:110:in `block in create'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:109:in `instance_eval'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:109:in `create'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command.rb:204:in `exec_stage'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command.rb:158:in `execute!'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command.rb:68:in `run'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command-processor.rb:64:in `block (2 levels) in execute!'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:169:in `call'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:169:in `exec'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:126:in `timeout_exec'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:110:in `block in create'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:109:in `instance_eval'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/activity.rb:109:in `create'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command-processor.rb:62:in `block in execute!'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command-processor.rb:106:in `execute_command'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/lib/elasticbeanstalk/command-processor.rb:60:in `execute!'
from /opt/elasticbeanstalk/lib/ruby/lib/ruby/gems/2.1.0/gems/beanstalk-core-1.0/bin/command-processor:46:in `<top (required)>'
from /opt/elasticbeanstalk/lib/ruby/bin/command-processor:23:in `load'
from /opt/elasticbeanstalk/lib/ruby/bin/command-processor:23:in `<main>'

[2014-11-26T22:56:40.112Z] INFO  [3842]  - [CMD-AppDeploy/AppDeployStage0/EbExtensionPostBuild] : Activity failed.
[2014-11-26T22:56:40.112Z] INFO  [3842]  - [CMD-AppDeploy/AppDeployStage0] : Activity failed.
[2014-11-26T22:56:40.112Z] INFO  [3842]  - [CMD-AppDeploy] : Completed activity. Result:
  Command CMD-AppDeploy failed. 

---

/var/log/httpd/error_log

(...)
[Wed Nov 26 22:21:56.819829 2014] [:error] [pid 2320] [client 127.0.0.1:59071] Target WSGI script not found or unable to stat: /opt/python/current/app/topdish
[Wed Nov 26 22:38:28.545144 2014] [:error] [pid 2321] [client 62.45.238.167:54585] Target WSGI script not found or unable to stat: /opt/python/current/app/topdish
[Wed Nov 26 22:38:32.716143 2014] [:error] [pid 2321] [client 62.45.238.167:54585] Target WSGI script not found or unable to stat: /opt/python/current/app/topdish
[Wed Nov 26 22:38:35.218074 2014] [:error] [pid 2321] [client 62.45.238.167:54585] Target WSGI script not found or unable to stat: /opt/python/current/app/topdish
[Wed Nov 26 22:38:39.976764 2014] [:error] [pid 2321] [client 62.45.238.167:54585] Target WSGI script not found or unable to stat: /opt/python/current/app/topdish

Answer 1

我认为 'Target WSGI script not found or unable to stat:/opt/python/current/app/topdish' 错误消息是因为您的 container_commands 不成功;只有在成功完成所有 container_commands 之后，部署 Hook 才会将应用程序从 /ondeck 复制到 /current。

作为测试，尝试在您的 01_migrate 容器命令的 leader_only: true 之后的新行中添加 ignoreErrors: true。您的应用程序应该部署，但 syncdb 当然不会运行。

container_commands:
  01_migrate:    
    command: "python manage.py syncdb --noinput"
    leader_only: true
    ignoreErrors: true

然后尝试输入 python 和 manage.py 的完整路径，没有 ignoreErrors:

container_commands:
  01_migrate:    
    command: "/opt/python/run/venv/bin/python /opt/python/ondeck/app/manage.py syncdb --noinput"
    leader_only: true

或者可能:

container_commands:
  01_migrate:    
    command: "/opt/python/run/venv/bin/python26 /opt/python/ondeck/app/manage.py syncdb --noinput"
    leader_only: true