無法從 ubuntu 18.04 docker 映像中的源安裝 ruby

Question

I am installing ruby 2.7.2 on a docker container that uses ubuntu:18.04.c I first tried to install rbenv but it did not offer the version I need so I resorted to installing from source. 但是，從源代碼安裝時， make install不會通過。 這是我用來從源代碼https://coderwall.com/p/3u__pq/install-ruby-from-source-on-ubuntu安裝的方法，這就是我試圖解決我的問題無濟於事的方法 無法找到package openssl-dev 。 我也無法安裝 rvm，因為它沒有被 bash 拾取。

docker文件

    #
# Ubuntu Dockerfile
#
# https://github.com/dockerfile/ubuntu
#

# Pull base image.
FROM ubuntu:18.04
ARG APP_NAME=<appname>
# Install.
RUN \
  apt-get update && \
  apt-get -y upgrade && \
  apt-get install -y build-essential openssl libssl-dev zlib1g-dev&& \
  apt-get install -y software-properties-common && \
  apt-get install -y byobu curl git htop man unzip vim wget openssl libffi-dev &&\
  rm -rf /var/lib/apt/lists/*
RUN \
  wget https://cache.ruby-lang.org/pub/ruby/2.7/ruby-2.7.2.tar.bz2 &&\
  tar -xf ruby-2.7.2.tar.bz2

RUN cd ruby-2.7.2
RUN pwd
RUN ./ruby-2.7.2/configure --prefix=/my/ruby/dir
RUN make
RUN make install
# Set environment variables.
EXPOSE 5000


ENV HOME /root
ENV PATH="${PATH}:/my/ruby/dir"


# Define working directory.
WORKDIR /root
COPY ${APP_NAME}/ ./${APP_NAME}/
# Define default command.
CMD ["bash"]

當我進行安裝時，它抱怨沒有安裝 openssl 但是我確實 apt install openssl

*** Following extensions are not compiled:
openssl:
    Could not be configured. It will not be installed.
    /ruby-2.7.2/ext/openssl/extconf.rb:97: OpenSSL library could not be found. You might want to use --with-openssl-dir=<dir> option to specify the prefix where OpenSSL is installed.
    Check ext/openssl/mkmf.log for more details.
dbm:
    Could not be configured. It will not be installed.
    Check ext/dbm/mkmf.log for more details.
readline:
    Could not be configured. It will not be installed.
    /ruby-2.7.2/ext/readline/extconf.rb:62: Neither readline nor libedit was found
    Check ext/readline/mkmf.log for more details.
gdbm:
    Could not be configured. It will not be installed.
    Check ext/gdbm/mkmf.log for more details.
zlib:
    Could not be configured. It will not be installed.
    Check ext/zlib/mkmf.log for more details.
*** Fix the problems, then remove these directories and try again if you want.

稍后這是錯誤消息

Traceback (most recent call last):
    11: from ./tool/rbinstall.rb:947:in `<main>'
    10: from ./tool/rbinstall.rb:947:in `each'
     9: from ./tool/rbinstall.rb:950:in `block in <main>'
     8: from ./tool/rbinstall.rb:799:in `block in <main>'
     7: from ./tool/rbinstall.rb:835:in `install_default_gem'
     6: from ./tool/rbinstall.rb:835:in `each'
     5: from ./tool/rbinstall.rb:845:in `block in install_default_gem'
     4: from ./tool/rbinstall.rb:279:in `open_for_install'
     3: from ./tool/rbinstall.rb:846:in `block (2 levels) in install_default_gem'
     2: from /ruby-2.7.2/lib/rubygems/specification.rb:2430:in `to_ruby'
     1: from /ruby-2.7.2/lib/rubygems/core_ext/kernel_require.rb:92:in `require'
/ruby-2.7.2/lib/rubygems/core_ext/kernel_require.rb:92:in `require': cannot load such file -- openssl (LoadError)

Answer 1

我認為你的問題在這里

RUN cd ruby-2.7.2
RUN pwd
RUN ./ruby-2.7.2/configure --prefix=/my/ruby/dir

你 cd 進入ruby-2.7.2 -2.7.2 然后嘗試./ruby-2.7.2/configure...但你已經在目錄ruby-2.7.2 -2.7.2 所以這一行

RUN./ruby-2.7.2/configure --prefix=/my/ruby/dir

應該失敗。

嘗試更換

RUN./ruby-2.7.2/configure --prefix=/my/ruby/dir

和

RUN./configure --prefix=/my/ruby/dir

您也可以通過刪除以下行來清理您的Docerfile

RUN pwd