Yes I have already checked it. I have found a docker image created by @nopz, this one is up-to-date. But the official docker image in not! Maybe you (nodebb) should give access to a dockerfile to allow anyone to build a nodebb docker image. EDIT I found the dockerfile, and the problem about this outdated version here. It's outdated because the dockerfile build the image with the v0.5.x version :
MAINTAINER NodeBB Docker Team <[email protected]>
# install main packages:
RUN yum -y update ; yum clean all
RUN yum -y install epel-release tar ; yum clean all
RUN yum -y install wget ; yum clean all
RUN yum -y groupinstall "Development Tools"
RUN yum -y install nodejs git ImageMagick npm
RUN yum -y install openssl openssl-devel
# clone nodebb and install it
RUN cd /opt ; git clone -b v0.5.x https://github.com/NodeBB/NodeBB nodebb
RUN cd /opt/nodebb ; npm install
# Create a nodebb volume
# Define a working directory
# Expose ports
CMD [ "node", "app.js" ]
You should (NodeBB) update this dockerfile !
End of the EDIT
Now, with the nopz/nodebb image I just had a problem about plugin persistence. But the first installation is so much easier and automatic with just one docker.