rails sするために bundle installしたらエラーがでました。環境はVagrantでもともとCentOS6でやっていたものをCentOS7のboxに変更したものです。
Mysqlがない問題
bundle instal
略
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/home/vagrant/.rbenv/versions/2.2.4/bin/ruby -r ./siteconf20160108-4279-qe05qo.rb extconf.rb
checking for ruby/thread.h... yes
checking for rb_thread_call_without_gvl() in ruby/thread.h... yes
checking for rb_thread_blocking_region()... no
checking for rb_wait_for_single_fd()... yes
checking for rb_hash_dup()... yes
checking for rb_intern3()... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lm... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lz... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lsocket... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lnsl... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lmygcc... no
checking for mysql_query() in -lmysqlclient... no
*** 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.
```
mysql-develをyumからinstallします。
```
sudo yum install mysql-devel gcc make
略
=====================================================================================================================================
Package アーキテクチャー バージョン リポジトリー 容量
=====================================================================================================================================
インストール中:
mariadb-devel x86_64 1:5.5.44-2.el7.centos base 748 k
依存性関連でのインストールをします:
mariadb-libs x86_64 1:5.5.44-2.el7.centos base 754 k
トランザクションの要約
=====================================================================================================================================
インストール 1 パッケージ (+1 個の依存関係のパッケージ)
総ダウンロード容量: 1.5 M
インストール容量: 7.7 M
Is this ok [y/d/N]: y
略
```
あとこれも
```
sudo yum install mysql mysql-server
```
mariadbになっちゃうけど良いのかな？
# pgがない問題
```
bundle install
略
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/home/vagrant/.rbenv/versions/2.2.4/bin/ruby -r ./siteconf20160108-4682-1jn9h2s.rb extconf.rb
checking for pg_config... no
No pg_config... trying anyway. If building fails, please try again with
--with-pg-config=/path/to/pg_config
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.
略
```
pgをインストール
```
sudo yum install postgresql-devel
略
=====================================================================================================================================
Package アーキテクチャー バージョン リポジトリー 容量
=====================================================================================================================================
インストール中:
postgresql-devel x86_64 9.2.14-1.el7_1 updates 948 k
依存性関連でのインストールをします:
postgresql x86_64 9.2.14-1.el7_1 updates 3.0 M
postgresql-libs x86_64 9.2.14-1.el7_1 updates 231 k
トランザクションの要約
=====================================================================================================================================
インストール 1 パッケージ (+2 個の依存関係のパッケージ)
総ダウンロード容量: 4.1 M
インストール容量: 20 M
Is this ok [y/d/N]: y
略
```
pgがインストールされました。
```
bundle install
略
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/home/vagrant/.rbenv/versions/2.2.4/bin/ruby -r ./siteconf20160108-5365-lu62gx.rb extconf.rb
checking if the C compiler accepts ... yes
Building nokogiri using packaged libraries.
checking for gzdopen() in -lz... yes
checking for iconv... yes
************************************************************************
IMPORTANT NOTICE:
Building Nokogiri with a packaged version of libxml2-2.9.2
with the following patches applied:
- 0001-Revert-Missing-initialization-for-the-catalog-module.patch
- 0002-Fix-missing-entities-after-CVE-2014-3660-fix.patch
Team Nokogiri will keep on doing their best to provide security
updates in a timely manner, but if this is a concern for you and want
to use the system library instead; abort this installation process and
reinstall nokogiri as follows:
gem install nokogiri -- --use-system-libraries
[--with-xml2-config=/path/to/xml2-config]
[--with-xslt-config=/path/to/xslt-config]
If you are using Bundler, tell it to use the option:
bundle config build.nokogiri --use-system-libraries
bundle install
Note, however, that nokogiri is not fully compatible with arbitrary
versions of libxml2 provided by OS/package vendors.
略
```
ここで `bundle config build.nokogiri --use-system-libraries`をしましたが失敗しました。
```
bundle config build.nokogiri --use-system-libraries
bundle install --path vendor/bundle
略
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.
/home/vagrant/.rbenv/versions/2.2.4/bin/ruby -r ./siteconf20160108-5747-1ngq14j.rb extconf.rb --use-system-libraries
checking if the C compiler accepts ... yes
Building nokogiri using system libraries.
libxml2 version 2.6.21 or later is required!
*** 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.
```
うーんこれそもそもlibxmlが入っていないパターンですかね(^o^;
```
sudo yum install libxml2 libxslt libxml2-devel libxslt-devel
略
=====================================================================================================================================
Package アーキテクチャー バージョン リポジトリー 容量
=====================================================================================================================================
インストール中:
libxml2-devel x86_64 2.9.1-6.el7_2.2 updates 1.0 M
libxslt x86_64 1.1.28-5.el7 base 242 k
libxslt-devel x86_64 1.1.28-5.el7 base 309 k
更新します:
libxml2 x86_64 2.9.1-6.el7_2.2 updates 666 k
依存性関連でのインストールをします:
libgcrypt-devel x86_64 1.5.3-12.el7_1.1 base 129 k
libgpg-error-devel x86_64 1.12-3.el7 base 16 k
xz-devel x86_64 5.1.2-12alpha.el7 base 44 k
依存性関連での更新をします:
libgcrypt x86_64 1.5.3-12.el7_1.1 base 263 k
xz x86_64 5.1.2-12alpha.el7 base 200 k
xz-libs x86_64 5.1.2-12alpha.el7 base 102 k
トランザクションの要約
=====================================================================================================================================
インストール 3 パッケージ (+3 個の依存関係のパッケージ)
更新 1 パッケージ (+3 個の依存関係のパッケージ)
総ダウンロード容量: 3.0 M
Is this ok [y/d/N]: y
```
# rails s成功
```
bundle install
bundle exec rails s -b 0.0.0.0 -p 8888
=> Booting WEBrick
=> Rails 4.2.0 application starting in development on http://0.0.0.0:8888
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
[2016-01-08 01:03:24] INFO WEBrick 1.3.1
[2016-01-08 01:03:24] INFO ruby 2.2.4 (2015-12-16) [x86_64-linux]
[2016-01-08 01:03:24] INFO WEBrick::HTTPServer#start: pid=7468 port=8888
```
とりあえず`rails s`まではできました。
# おまけ
Mariadbで動かすには上記以外にコマンドが必要でした。
参考ページのおかげでなんとかなりました。
```
sudo systemctl restart mariadb
sudo systemctl enable mariadb.service
bundle exec rake db:create
bundle exec rake db:migrate
```
# 反省
結局mysqlなのかmariadbなのかよくわからなくなってしまいました。
# 参考
http://blog.ecoteki.com/webservice/post-2567/