无法在Docker容器中安装Ruby

Question

获取错误：

命令'/ bin / sh -c rvm install ruby​​-2.5'返回了非零代码：127

我的dockerfile内容：

RUN apt-get update && \ 
  apt-get install -y \
  curl g++ gcc autoconf automake bison libc6-dev libffi-dev libgdbm-dev libncurses5-dev libsqlite3-dev libtool libyaml-dev make pkg-config sqlite3 zlib1g-dev libgmp-dev libreadline-dev libssl-dev && \
  gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB && \
  curl -sSL https://get.rvm.io | bash -s stable

RUN /bin/bash -c "source /etc/profile.d/rvm.sh"

RUN rvm install ruby-2.5