Docker hosted dokku #1076
Description
This puts Dokku into a docker container -- for ease of use, I'm just using docker-flatip and socat for glue.
Dockerfile
FROM ubuntu:latest
ENV DOKKU_TAG=v0.3.16
RUN apt-get update
RUN apt-get -y install libpcre3 libssl-dev
RUN apt-get -y install libpcre3-dev
RUN apt-get -y install wget zip gcc
## Dokku
RUN apt-get -y install curl git make ruby
RUN apt-get -y install dnsutils dropbear
RUN wget -qO- https://raw.githubusercontent.com/progrium/dokku/v0.3.16/bootstrap.sh | bash \
&& cd /root/dokku && make -i dokku-installer \
&& rm /etc/nginx/conf.d/dokku-installer.conf \
&& rm /etc/init/dokku-installer.conf \
&& rm -rf /home/dokku \
&& rm -rf /var/lib/apt/lists/*;
# RUN apt-get -y install nginx
EXPOSE 22
EXPOSE 80
VOLUME ["/home/dokku"]
ADD start /start
RUN chmod 755 /start
CMD ["/start"]/start
#!/bin/bash
set -e
DOKKU_VERISON="v0.3.16"
DOKKU_HOME="/home/dokku"
VHOST=$(hostname)
mkdir -p -m 0700 ${DOKKU_HOME}
chown -R dokku:dokku ${DOKKU_HOME}
echo "${VHOST}" > ${DOKKU_HOME}/HOSTNAME
echo "${VHOST}" > ${DOKKU_HOME}/VHOST
echo "${DOKKU_VERSION}" > ${DOKKU_HOME}/VERSION
cat <<E > ${DOKKU_HOME}/ENV
export CURL_CONNECT_TIMEOUT=5
export CURL_TIMEOUT=30
E
[ -f "/var/run/docker.sock" ] || \
ln -s ${DOKKU_HOME}/docker.sock /var/run/docker.sock
echo "Starting dropbear...";
dropbear
echo "Starting nginx...";
nginx -g 'daemon off;'On the host, you will need to link the unix domain socket for docker:
socat unix-listen:/opt/dokku/data/docker.sock,fork unix-connect:/var/run/docker.sockAnd it's quite likely you'll want to tweak sshcommand, possibly including it in your host. dropbear does not support: "no-user-rc", you'll want to remove that flag from inside of the sshcommand script.
You can use tools like docker-flatip to export port 22 and 80 on a separate IP address from the host, or you can use standard docker mechanisms to expose these ports.