launch a CAT command unix into Dockerfile

unix docker dockerfile cat
darkomen picture darkomen · Nov 1, 2016 · Viewed 22.9k times · Source

I would like to launch this vagrant command cat(run perfectly!) to provisionning my container with a Dockerfile :

# Configure Virtualenvwrapper.
RUN cat <<EOF >> /home/docker/.bashrc
# Virtualenvwrapper configuration.
export WORKON_HOME=\$HOME/.virtualenvs
export PROJECT_HOME=\$HOME/Devel
source /usr/local/bin/virtualenvwrapper.sh
EOF

But I have this error return when I launch my building image docker :

 ---> 40f9ed8e187d
Removing intermediate container 85f6c8536520
Step 69 : RUN cat <<EOF >> /home/docker/.bashrc
 ---> Running in dcbb3d441f79
 ---> 78acd9c2e5d5
Removing intermediate container dcbb3d441f79
Step 70 : EXPORT
Unknown instruction: EXPORT

What is the trick for run a cat command unix into image with Dockerfile ?

Answer

w1100n picture w1100n · Jan 14, 2019

Based on this comment to an issue posted on Github, this works:

RUN echo 'All of your\n\
multiline that you ever wanted\n\
into a dockerfile\n'\
>> /etc/example.conf

Related questions

How to set bash aliases for docker containers in Dockerfile?

I am new to docker. I found that we can set environment variables using ENV instruction in the Dockerfile. But how does one set bash aliases for long commands in Dockerfile?

Read More
Docker CE on RHEL - Requires: container-selinux >= 2.9

I am trying to install Docker CE on RHEL using this link. This is my RHEL version: Red Hat Enterprise Linux Server release 7.3 (Maipo) When I execute this: sudo yum -y install docker-ce I am getting this error: Error: Package: …

Read More
How to kill process inside container? Docker top command

I have simple example from official guide at docker website. I run the following: sudo docker run -d ubuntu:latest /bin/sh -c "while true; do echo hello world; sleep 1; done" a66asdasdhqie123... Then take some output from created container: …

Read More