Docker dependency issue: Rake aborted! LoadError: cannot load such file -- sqlite3/sqlite3_native
Docker dependency issue: Rake aborted! LoadError: cannot load such file -- sqlite3/sqlite3_native
我在尝试解决此依赖性问题时遇到问题。我的 gemfile 中有 sqlite3，即使我 运行 gem list （在我的 docker 容器中），我也可以看到它已安装。但是，当我使用 docker 构建生成我的依赖项，然后 运行 我在容器中的项目时，我在尝试 运行 rake test
时收到以下错误
root@401a61839c07:/app# rake test
rake aborted!
LoadError: cannot load such file -- sqlite3/sqlite3_native
这是构建，你可以清楚地看到安装了sqlite。
docker build -f DependenciesDockerfile -t visual-base .
.
.
.
Step 12 : RUN bundle install --without development
---> Running in 623d8b439808
Don't run Bundler as root. Bundler can ask for sudo if it is needed, and
installing your bundle as root will break this application for all non-root
users on this machine.
Fetching gem metadata from https://rubygems.org/...........
Fetching version metadata from https://rubygems.org/...
Fetching dependency metadata from https://rubygems.org/..
Installing rake 10.5.0
Installing i18n 0.7.0
Installing json 1.8.3
Installing minitest 5.8.4
Installing thread_safe 0.3.5
Installing tzinfo 1.2.2
Installing activesupport 4.1.6
Installing builder 3.2.2
Installing erubis 2.7.0
Installing actionview 4.1.6
Installing rack 1.5.5
Installing rack-test 0.6.3
Installing actionpack 4.1.6
Installing mime-types 2.99.1
Installing mail 2.6.3
Installing actionmailer 4.1.6
Installing activemodel 4.1.6
Installing arel 5.0.1.20140414130214
Installing activerecord 4.1.6
Installing execjs 2.6.0
Installing autoprefixer-rails 6.3.3.1
Installing bcrypt 3.1.11
Installing sass 3.2.19
Installing bootstrap-sass 3.3.5
Installing climate_control 0.0.3
Installing cocaine 0.5.8
Installing coffee-script-source 1.10.0
Installing coffee-script 2.4.1
Using thor 0.19.1
Installing railties 4.1.6
Installing coffee-rails 4.0.1
Installing jquery-rails 3.1.4
Using bundler 1.8.0
Installing hike 1.2.3
Installing multi_json 1.11.2
Installing tilt 1.4.1
Installing sprockets 2.12.4
Installing sprockets-rails 2.3.3
Installing rails 4.1.6
Installing commontator 4.10.5
Installing orm_adapter 0.5.0
Installing responders 1.1.2
Installing warden 1.2.6
Installing devise 3.5.6
Installing devise-bootstrap-views 0.0.8
Installing gretel 3.0.8
Installing jbuilder 2.4.1
Installing kgio 2.10.0
Installing mimemagic 0.3.0
Installing net-ldap 0.14.0
Installing paperclip 4.3.5
Installing pg 0.18.4
Installing polyamorous 1.1.0
Installing raindrops 0.16.0
Installing rdoc 4.2.2
Installing rmagick 2.13.3
Installing sass-rails 4.0.5
Installing sdoc 0.4.1
Installing sqlite3 1.3.11
Installing squeel 1.2.3
Installing turbolinks 2.5.3
Installing uglifier 2.7.2
Installing unicorn 5.0.1
Bundle complete! 28 Gemfile dependencies, 63 gems now installed.
Gems in the group development were not installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.
Post-install message from rdoc:
Depending on your version of ruby, you may need to install ruby rdoc/ri data:
<= 1.8.6 : unsupported
= 1.8.7 : gem install rdoc-data; rdoc-data --install
= 1.9.1 : gem install rdoc-data; rdoc-data --install
>= 1.9.2 : nothing to do! Yay!
Post-install message from rmagick:
Please report any bugs. See https://github.com/gemhome/rmagick/compare/RMagick_2-13-2...master and https://github.com/rmagick/rmagick/issues/18
---> 901bbde8aa4f
Removing intermediate container 623d8b439808
Successfully built 901bbde8aa4f
2.2.3 in visual-automation/ on master
› docker build -t visual .
Sending build context to Docker daemon 112.3 MB
Step 1 : FROM visual-base
---> 901bbde8aa4f
Step 2 : MAINTAINER
---> Running in bd02c1f718e7
---> 02f76881207c
Removing intermediate container bd02c1f718e7
Step 3 : ADD . /app
---> 4f80ec7fccce
Removing intermediate container 6d73bdc55fde
Step 4 : RUN sed -i.bak 's/user www-data;/user root;/g' /etc/nginx/nginx.conf
---> Running in df22155ce2b7
---> aa9442d89c9e
Removing intermediate container df22155ce2b7
Step 5 : EXPOSE 80
---> Running in f839dd6707ce
---> d197974fa925
Removing intermediate container f839dd6707ce
Successfully built d197974fa925
2.2.3 in repo/ on master
› docker run -it visual /bin/bash
root@401a61839c07:/app# rake test
rake aborted!
LoadError: cannot load such file -- sqlite3/sqlite3_native
/app/vendor/cache/ruby/2.2.0/gems/sqlite3-1.3.11/lib/sqlite3.rb:6:in `require'
/app/vendor/cache/ruby/2.2.0/gems/sqlite3-1.3.11/lib/sqlite3.rb:6:in `rescue in <top (required)>'
/app/vendor/cache/ruby/2.2.0/gems/sqlite3-1.3.11/lib/sqlite3.rb:2:in `<top (required)>'
/app/config/application.rb:7:in `<top (required)>'
/app/Rakefile:4:in `<top (required)>'
LoadError: cannot load such file -- sqlite3/2.2/sqlite3_native
/app/vendor/cache/ruby/2.2.0/gems/sqlite3-1.3.11/lib/sqlite3.rb:4:in `require'
/app/vendor/cache/ruby/2.2.0/gems/sqlite3-1.3.11/lib/sqlite3.rb:4:in `<top (required)>'
/app/config/application.rb:7:in `<top (required)>'
/app/Rakefile:4:in `<top (required)>'
(See full trace by running task with --trace)
root@401a61839c07:/app#
这是当 运行 在容器内时 gem list 的输出
root@69296d7eec2a:/app# gem list
*** LOCAL GEMS ***
actionmailer (4.1.6)
actionpack (4.1.6)
actionview (4.1.6)
activemodel (4.1.6)
activerecord (4.1.6)
activesupport (4.1.6)
arel (5.0.1.20140414130214)
autoprefixer-rails (5.2.1.1)
bcrypt (3.1.10)
bigdecimal (1.2.6)
bootstrap-sass (3.3.5)
builder (3.2.2)
bundler (1.8.0)
climate_control (0.0.3)
cocaine (0.5.8)
coffee-rails (4.0.1)
coffee-script (2.4.1)
coffee-script-source (1.9.1.1)
commontator (4.10.5)
devise (3.5.1)
devise-bootstrap-views (0.0.5)
dotenv (1.0.2)
erubis (2.7.0)
execjs (2.5.2)
foreman (0.77.0)
gretel (3.0.8)
hike (1.2.3)
i18n (0.7.0)
io-console (0.4.3)
jbuilder (2.3.1)
jquery-rails (3.1.3)
json (1.8.3, 1.8.1)
kgio (2.9.3)
mail (2.6.3)
mime-types (2.6.1)
mimemagic (0.3.0)
minitest (5.8.4, 5.4.3)
multi_json (1.11.2)
net-ldap (0.11)
orm_adapter (0.5.0)
paperclip (4.3.5)
pg (0.18.3)
polyamorous (1.1.0)
power_assert (0.2.2)
psych (2.0.8)
rack (1.5.5)
rack-test (0.6.3)
rails (4.1.6)
railties (4.1.6)
raindrops (0.15.0)
rake (10.4.2)
rdoc (4.2.0)
responders (1.1.2)
rmagick (2.13.3)
sass (3.2.19)
sass-rails (4.0.5)
sdoc (0.4.1)
sprockets (2.12.4)
sprockets-rails (2.3.2)
sqlite3 (1.3.11)
squeel (1.2.3)
test-unit (3.0.8)
thor (0.19.1)
thread_safe (0.3.5)
tilt (1.4.1)
turbolinks (2.5.3)
tzinfo (1.2.2)
uglifier (2.7.1)
unicorn (4.9.0)
warden (1.2.3)
我已经通过编辑 gemspecs 看到了临时解决方案，但是一旦您修复了一个，就会弹出另一个类似的错误。我一定是遗漏了什么，但看起来一切正常。
如有任何帮助，我们将不胜感激
从 ruby gem https://github.com/sparklemotion/sqlite3-ruby 的文档中说
This module allows Ruby programs to interface with the SQLite3 database engine (www.sqlite.org). You must have the SQLite engine installed in order to build this module.
我认为这里的问题是你的 docker 容器没有安装 sqlite3 引擎，所以当 gem 试图调用本地代码时它不能。
验证你有这样一行
RUN apt-get sqlite3 在你的 Dockerfile 中。
我在尝试解决此依赖性问题时遇到问题。我的 gemfile 中有 sqlite3，即使我 运行 gem list （在我的 docker 容器中），我也可以看到它已安装。但是，当我使用 docker 构建生成我的依赖项，然后 运行 我在容器中的项目时，我在尝试 运行 rake test
root@401a61839c07:/app# rake test
rake aborted!
LoadError: cannot load such file -- sqlite3/sqlite3_native
这是构建，你可以清楚地看到安装了sqlite。
docker build -f DependenciesDockerfile -t visual-base .
.
.
.
Step 12 : RUN bundle install --without development
---> Running in 623d8b439808
Don't run Bundler as root. Bundler can ask for sudo if it is needed, and
installing your bundle as root will break this application for all non-root
users on this machine.
Fetching gem metadata from https://rubygems.org/...........
Fetching version metadata from https://rubygems.org/...
Fetching dependency metadata from https://rubygems.org/..
Installing rake 10.5.0
Installing i18n 0.7.0
Installing json 1.8.3
Installing minitest 5.8.4
Installing thread_safe 0.3.5
Installing tzinfo 1.2.2
Installing activesupport 4.1.6
Installing builder 3.2.2
Installing erubis 2.7.0
Installing actionview 4.1.6
Installing rack 1.5.5
Installing rack-test 0.6.3
Installing actionpack 4.1.6
Installing mime-types 2.99.1
Installing mail 2.6.3
Installing actionmailer 4.1.6
Installing activemodel 4.1.6
Installing arel 5.0.1.20140414130214
Installing activerecord 4.1.6
Installing execjs 2.6.0
Installing autoprefixer-rails 6.3.3.1
Installing bcrypt 3.1.11
Installing sass 3.2.19
Installing bootstrap-sass 3.3.5
Installing climate_control 0.0.3
Installing cocaine 0.5.8
Installing coffee-script-source 1.10.0
Installing coffee-script 2.4.1
Using thor 0.19.1
Installing railties 4.1.6
Installing coffee-rails 4.0.1
Installing jquery-rails 3.1.4
Using bundler 1.8.0
Installing hike 1.2.3
Installing multi_json 1.11.2
Installing tilt 1.4.1
Installing sprockets 2.12.4
Installing sprockets-rails 2.3.3
Installing rails 4.1.6
Installing commontator 4.10.5
Installing orm_adapter 0.5.0
Installing responders 1.1.2
Installing warden 1.2.6
Installing devise 3.5.6
Installing devise-bootstrap-views 0.0.8
Installing gretel 3.0.8
Installing jbuilder 2.4.1
Installing kgio 2.10.0
Installing mimemagic 0.3.0
Installing net-ldap 0.14.0
Installing paperclip 4.3.5
Installing pg 0.18.4
Installing polyamorous 1.1.0
Installing raindrops 0.16.0
Installing rdoc 4.2.2
Installing rmagick 2.13.3
Installing sass-rails 4.0.5
Installing sdoc 0.4.1
Installing sqlite3 1.3.11
Installing squeel 1.2.3
Installing turbolinks 2.5.3
Installing uglifier 2.7.2
Installing unicorn 5.0.1
Bundle complete! 28 Gemfile dependencies, 63 gems now installed.
Gems in the group development were not installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.
Post-install message from rdoc:
Depending on your version of ruby, you may need to install ruby rdoc/ri data:
<= 1.8.6 : unsupported
= 1.8.7 : gem install rdoc-data; rdoc-data --install
= 1.9.1 : gem install rdoc-data; rdoc-data --install
>= 1.9.2 : nothing to do! Yay!
Post-install message from rmagick:
Please report any bugs. See https://github.com/gemhome/rmagick/compare/RMagick_2-13-2...master and https://github.com/rmagick/rmagick/issues/18
---> 901bbde8aa4f
Removing intermediate container 623d8b439808
Successfully built 901bbde8aa4f
2.2.3 in visual-automation/ on master
› docker build -t visual .
Sending build context to Docker daemon 112.3 MB
Step 1 : FROM visual-base
---> 901bbde8aa4f
Step 2 : MAINTAINER
---> Running in bd02c1f718e7
---> 02f76881207c
Removing intermediate container bd02c1f718e7
Step 3 : ADD . /app
---> 4f80ec7fccce
Removing intermediate container 6d73bdc55fde
Step 4 : RUN sed -i.bak 's/user www-data;/user root;/g' /etc/nginx/nginx.conf
---> Running in df22155ce2b7
---> aa9442d89c9e
Removing intermediate container df22155ce2b7
Step 5 : EXPOSE 80
---> Running in f839dd6707ce
---> d197974fa925
Removing intermediate container f839dd6707ce
Successfully built d197974fa925
2.2.3 in repo/ on master
› docker run -it visual /bin/bash
root@401a61839c07:/app# rake test
rake aborted!
LoadError: cannot load such file -- sqlite3/sqlite3_native
/app/vendor/cache/ruby/2.2.0/gems/sqlite3-1.3.11/lib/sqlite3.rb:6:in `require'
/app/vendor/cache/ruby/2.2.0/gems/sqlite3-1.3.11/lib/sqlite3.rb:6:in `rescue in <top (required)>'
/app/vendor/cache/ruby/2.2.0/gems/sqlite3-1.3.11/lib/sqlite3.rb:2:in `<top (required)>'
/app/config/application.rb:7:in `<top (required)>'
/app/Rakefile:4:in `<top (required)>'
LoadError: cannot load such file -- sqlite3/2.2/sqlite3_native
/app/vendor/cache/ruby/2.2.0/gems/sqlite3-1.3.11/lib/sqlite3.rb:4:in `require'
/app/vendor/cache/ruby/2.2.0/gems/sqlite3-1.3.11/lib/sqlite3.rb:4:in `<top (required)>'
/app/config/application.rb:7:in `<top (required)>'
/app/Rakefile:4:in `<top (required)>'
(See full trace by running task with --trace)
root@401a61839c07:/app#
这是当 运行 在容器内时 gem list 的输出
root@69296d7eec2a:/app# gem list
*** LOCAL GEMS ***
actionmailer (4.1.6)
actionpack (4.1.6)
actionview (4.1.6)
activemodel (4.1.6)
activerecord (4.1.6)
activesupport (4.1.6)
arel (5.0.1.20140414130214)
autoprefixer-rails (5.2.1.1)
bcrypt (3.1.10)
bigdecimal (1.2.6)
bootstrap-sass (3.3.5)
builder (3.2.2)
bundler (1.8.0)
climate_control (0.0.3)
cocaine (0.5.8)
coffee-rails (4.0.1)
coffee-script (2.4.1)
coffee-script-source (1.9.1.1)
commontator (4.10.5)
devise (3.5.1)
devise-bootstrap-views (0.0.5)
dotenv (1.0.2)
erubis (2.7.0)
execjs (2.5.2)
foreman (0.77.0)
gretel (3.0.8)
hike (1.2.3)
i18n (0.7.0)
io-console (0.4.3)
jbuilder (2.3.1)
jquery-rails (3.1.3)
json (1.8.3, 1.8.1)
kgio (2.9.3)
mail (2.6.3)
mime-types (2.6.1)
mimemagic (0.3.0)
minitest (5.8.4, 5.4.3)
multi_json (1.11.2)
net-ldap (0.11)
orm_adapter (0.5.0)
paperclip (4.3.5)
pg (0.18.3)
polyamorous (1.1.0)
power_assert (0.2.2)
psych (2.0.8)
rack (1.5.5)
rack-test (0.6.3)
rails (4.1.6)
railties (4.1.6)
raindrops (0.15.0)
rake (10.4.2)
rdoc (4.2.0)
responders (1.1.2)
rmagick (2.13.3)
sass (3.2.19)
sass-rails (4.0.5)
sdoc (0.4.1)
sprockets (2.12.4)
sprockets-rails (2.3.2)
sqlite3 (1.3.11)
squeel (1.2.3)
test-unit (3.0.8)
thor (0.19.1)
thread_safe (0.3.5)
tilt (1.4.1)
turbolinks (2.5.3)
tzinfo (1.2.2)
uglifier (2.7.1)
unicorn (4.9.0)
warden (1.2.3)
我已经通过编辑 gemspecs 看到了临时解决方案，但是一旦您修复了一个，就会弹出另一个类似的错误。我一定是遗漏了什么，但看起来一切正常。
如有任何帮助，我们将不胜感激
从 ruby gem https://github.com/sparklemotion/sqlite3-ruby 的文档中说
This module allows Ruby programs to interface with the SQLite3 database engine (www.sqlite.org). You must have the SQLite engine installed in order to build this module.
我认为这里的问题是你的 docker 容器没有安装 sqlite3 引擎，所以当 gem 试图调用本地代码时它不能。
验证你有这样一行
RUN apt-get sqlite3 在你的 Dockerfile 中。