Rails＆docker – 不能安装json gem
我试图在panamax-ui上使用panamax-ui （一个RoR应用程序）。 我工作了几天（本地和docker），修改成功等
然后我添加了一些新的function和一些gem。
我bundle install一切。
然后，我想重新build立我的docker（ docker build ）
但我已经去了这个错误：
Gem :: Ext :: BuildError：错误：无法构buildgem原生扩展。
/ usr / bin / ruby extconf.rb创buildMakefile
使“DESTDIR =”干净sh：make：找不到
使“DESTDIR =”sh：make：找不到
使失败，退出代码127
Gem文件将保持安装在/usr/lib/ruby/gems/2.1.0/gems/json-1.8.3中进行检查。 logging到/usr/lib/ruby/gems/2.1.0/extensions/x86_64-linux/2.1.0/json-1.8.3/gem_make.out的结果安装json（1.8.3）时发生错误，Bundler无法继续。 确保
gem install json -v '1.8.3'在捆绑之前gem install json -v '1.8.3'。 命令'/ bin / sh -c bundle install –without development test'返回一个非零的代码：5
我试图删除Gemfile.lock并重新运行bundle install然后重builddocker，同样的错误…
这是我的Gemfile ：
source 'https://rubygems.org' gem 'rails', '4.1.7' gem 'puma', '2.8.2' gem 'sqlite3', '1.3.9' gem 'faraday_middleware', '0.9.0' gem 'docker-api', '1.13.0', require: 'docker' gem 'fleet-api', '1.1.0', require: 'fleet' gem 'active_model_serializers', '0.9.0' gem 'octokit', '3.2.0' gem 'kmts', '2.0.1' gem 'devise' gem "devise_ldap_authenticatable" gem 'json', '1.8.3' group :test, :development do gem 'rspec-rails' gem 'its' end group :test do gem 'coveralls', '0.7.0' gem 'shoulda-matchers', '2.6.1' gem 'database_cleaner', '1.3.0' gem 'webmock', '1.20.0' end
和我的Gemfile.lock
GEM remote: https://rubygems.org/ specs: actionmailer (4.1.7) actionpack (= 4.1.7) actionview (= 4.1.7) mail (~> 2.5, >= 2.5.4) actionpack (4.1.7) actionview (= 4.1.7) activesupport (= 4.1.7) rack (~> 1.5.2) rack-test (~> 0.6.2) actionview (4.1.7) activesupport (= 4.1.7) builder (~> 3.1) erubis (~> 2.7.0) active_model_serializers (0.9.0) activemodel (>= 3.2) activemodel (4.1.7) activesupport (= 4.1.7) builder (~> 3.1) activerecord (4.1.7) activemodel (= 4.1.7) activesupport (= 4.1.7) arel (~> 5.0.0) activesupport (4.1.7) i18n (~> 0.6, >= 0.6.9) json (~> 1.7, >= 1.7.7) minitest (~> 5.1) thread_safe (~> 0.1) tzinfo (~> 1.1) addressable (2.3.8) archive-tar-minitar (0.5.2) arel (5.0.1.20140414130214) bcrypt (3.1.11) builder (3.2.2) concurrent-ruby (1.0.2) coveralls (0.7.0) multi_json (~> 1.3) rest-client simplecov (>= 0.7) term-ansicolor thor crack (0.4.3) safe_yaml (~> 1.0.0) database_cleaner (1.3.0) devise (4.2.0) bcrypt (~> 3.0) orm_adapter (~> 0.1) railties (>= 4.1.0, < 5.1) responders warden (~> 1.2.3) devise_ldap_authenticatable (0.8.5) devise (>= 3.4.1) net-ldap (>= 0.6.0, <= 0.11) diff-lcs (1.2.5) docile (1.1.5) docker-api (1.13.0) archive-tar-minitar excon (>= 0.37.0) json domain_name (0.5.20160615) unf (>= 0.0.5, < 1.0.0) erubis (2.7.0) excon (0.50.1) faraday (0.8.11) multipart-post (~> 1.2.0) faraday_middleware (0.9.0) faraday (>= 0.7.4, < 0.9) fleet-api (1.1.0) excon (>= 0.27.4) http-cookie (1.0.2) domain_name (~> 0.5) i18n (0.7.0) its (0.2.0) rspec-core json (1.8.3) kmts (2.0.1) mail (2.6.4) mime-types (>= 1.16, < 4) mime-types (3.1) mime-types-data (~> 3.2015) mime-types-data (3.2016.0521) minitest (5.9.0) multi_json (1.12.1) multipart-post (1.2.0) net-ldap (0.11) netrc (0.11.0) octokit (3.2.0) sawyer (~> 0.5.3) orm_adapter (0.5.0) puma (2.8.2) rack (>= 1.1, < 2.0) rack (1.5.5) rack-test (0.6.3) rack (>= 1.0) rails (4.1.7) actionmailer (= 4.1.7) actionpack (= 4.1.7) actionview (= 4.1.7) activemodel (= 4.1.7) activerecord (= 4.1.7) activesupport (= 4.1.7) bundler (>= 1.3.0, < 2.0) railties (= 4.1.7) sprockets-rails (~> 2.0) railties (4.1.7) actionpack (= 4.1.7) activesupport (= 4.1.7) rake (>= 0.8.7) thor (>= 0.18.1, < 2.0) rake (11.2.2) responders (1.1.2) railties (>= 3.2, < 4.2) rest-client (2.0.0) http-cookie (>= 1.0.2, < 2.0) mime-types (>= 1.16, < 4.0) netrc (~> 0.8) rspec-core (3.5.1) rspec-support (~> 3.5.0) rspec-expectations (3.5.0) diff-lcs (>= 1.2.0, < 2.0) rspec-support (~> 3.5.0) rspec-mocks (3.5.0) diff-lcs (>= 1.2.0, < 2.0) rspec-support (~> 3.5.0) rspec-rails (3.5.0) actionpack (>= 3.0) activesupport (>= 3.0) railties (>= 3.0) rspec-core (~> 3.5.0) rspec-expectations (~> 3.5.0) rspec-mocks (~> 3.5.0) rspec-support (~> 3.5.0) rspec-support (3.5.0) safe_yaml (1.0.4) sawyer (0.5.5) addressable (~> 2.3.5) faraday (~> 0.8, < 0.10) shoulda-matchers (2.6.1) activesupport (>= 3.0.0) simplecov (0.12.0) docile (~> 1.1.0) json (>= 1.8, < 3) simplecov-html (~> 0.10.0) simplecov-html (0.10.0) sprockets (3.6.3) concurrent-ruby (~> 1.0) rack (> 1, < 3) sprockets-rails (2.3.3) actionpack (>= 3.0) activesupport (>= 3.0) sprockets (>= 2.8, < 4.0) sqlite3 (1.3.9) term-ansicolor (1.3.2) tins (~> 1.0) thor (0.19.1) thread_safe (0.3.5) tins (1.10.2) tzinfo (1.2.2) thread_safe (~> 0.1) unf (0.1.4) unf_ext unf_ext (0.0.7.2) warden (1.2.6) rack (>= 1.0) webmock (1.20.0) addressable (>= 2.3.6) crack (>= 0.3.2) PLATFORMS ruby DEPENDENCIES active_model_serializers (= 0.9.0) coveralls (= 0.7.0) database_cleaner (= 1.3.0) devise devise_ldap_authenticatable docker-api (= 1.13.0) faraday_middleware (= 0.9.0) fleet-api (= 1.1.0) its json (= 1.8.3) kmts (= 2.0.1) octokit (= 3.2.0) puma (= 2.8.2) rails (= 4.1.7) rspec-rails shoulda-matchers (= 2.6.1) sqlite3 (= 1.3.9) webmock (= 1.20.0) BUNDLED WITH 1.12.5
记住 ：问题是当我做dockerbuild设
谢谢你的帮助
panamax-ui使用Alpine Linux的基础镜像，所以你可以尝试添加ruby-json apk包到Dockerfile来正确安装json gem：
FROM centurylink/panamax-ruby-base:0.4.0 RUN apk-install ruby-json CMD bundle exec rails s