ruby-on-rails – 为什么pg gem不能安装在AWS Elastic Beanstalk中?

我正在向AWS Elastic Beanstalk部署一个简单的应用程序。但是,我将宝石’pg’放在Gemfile中,并将其推送到弹性Beanstalk。我的日志中出现以下错误:

Installing actionpack (4.0.1) 
Installing mime-types (1.25) 
Installing polyglot (0.3.3) 
Installing treetop (1.4.15) 
Installing mail (2.5.4) 
Installing actionmailer (4.0.1) 
Installing activemodel (4.0.1) 
Installing activerecord-deprecated_finders (1.0.3) 
Installing arel (4.0.1) 
Installing activerecord (4.0.1) 
Installing coffee-script-source (1.6.3) 
Installing execjs (2.0.2) 
Installing coffee-script (2.2.0) 
Installing thor (0.18.1) 
Installing railties (4.0.1) 
Installing coffee-rails (4.0.1) 
Installing hike (1.2.3) 
Installing jbuilder (1.5.2) 
Installing jquery-rails (3.0.4) 
Using json (1.8.1) 
Installing pg (0.17.0) 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /usr/bin/ruby1.9 extconf.rb 
checking for pg_config... no
No pg_config... trying anyway. If building fails, please try again with
checking for libpq-fe.h... no
Can't find the 'libpq-fe.h header
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:

Gem files will remain installed in /usr/share/ruby/1.9/gems/1.9.1/gems/pg-0.17.0 for inspection.
Results logged to /usr/share/ruby/1.9/gems/1.9.1/gems/pg-0.17.0/ext/gem_make.out
An error occurred while installing pg (0.17.0), and Bundler cannot continue.
Make sure that `gem install pg -v '0.17.0'` succeeds before bundling.
ERROR: bundle install failed!

2013-11-17 14:10:03,371 [ERROR] (8302 MainThread) [] [root directoryHooksExecutor error] Script failed with returncode 1
2013-11-17 14:10:03,499 [INFO] (8269 MainThread) [] [root command execute] Command returned: (code: 1, stdout: Error occurred during build: Command hooks failed
, stderr: None)


很久以前,我记得在我的其他Ubuntu盒子里遇到这个问题。显然,需要通过sudo apt-get install ruby​​-dev build-essential或sudo apt-get install postgresql-client libpq5 libpq-dev安装附加库。我会给它一个镜头,但在AWS弹性Beanstalk,我不太确定如何做到这一点。

在.ebextensions / packages.config中:

    postgresql-devel: []


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