rlock
create NFS-safe lockfiles
RUN apt-get update && \
apt-get install -y ruby-lockfile
RUN apt-get update && \
apt-get install -y ruby-lockfile
RUN apt-get update && \
apt-get install -y ruby-lockfile
RUN dnf install -y rubygem-lockfile
RUN apt-get update && \
apt-get install -y ruby-lockfile