docker hosted dokku

01-run.sh

# add your public ssh keys to data/ssh
mkdir -p data/{apps,config,ssh,storage}

# build the image and tag it
docker build -t dokku/dokku:dokku-test .

# run the image
docker run \
  -e "TRACE=1" \
  -p "2222:22" \
  -v $PWD/data/apps:/apps \
  -v $PWD/data/config:/var/lib/dokku/config \
  -v $PWD/data/ssh:/var/lib/dokku/ssh \
  -v $PWD/data/storage:/var/lib/dokku/storage \
  -v /var/run/docker.sock:/var/run/docker.sock \
  dokku/dokku:dokku-test

Dockerfile

FROM ubuntu:14.04

ENV DEBIAN_FRONTEND  noninteractive
ENV DOCKER_HOST      unix:///var/run/docker.sock
ENV DOKKU_DOCKERFILE 1
ENV DOKKU_ROOT       /apps
ENV DOKKU_VERSION    0.5.3

RUN apt-get update -qq
RUN apt-get -qq -y install apt-transport-https ca-certificates libidn11 openssl wget
RUN apt-get -qq -y install openssh-server && mkdir -p /var/run/sshd /apps

ADD bootstrap.sh /tmp/bootstrap.sh
RUN DOKKU_TAG="v${DOKKU_VERSION}" bash /tmp/bootstrap.sh

# Ensure we have an init so that we don't leave random processes lying around
RUN wget -O /usr/local/bin/dumb-init https://github.com/Yelp/dumb-init/releases/download/v1.0.1/dumb-init_1.0.1_amd64 && chmod +x /usr/local/bin/dumb-init

# Try and slim down the image
RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/bootstrap.sh;

EXPOSE 22
# TODO: What do we do about config/data for community plugins?
# TODO: How do we handle installing custom plugins

COPY contrib/dockerfile-entrypoint.sh /sbin/entrypoint.sh
RUN chmod 755 /sbin/entrypoint.sh

ENTRYPOINT ["dumb-init", "/sbin/entrypoint.sh"]
CMD ["/usr/sbin/sshd", "-D", "-e"]

dockerfile-entrypoint.sh

#!/usr/bin/env bash
set -eo pipefail; [[ $TRACE ]] && set -x

main() {
  readonly DOKKU_SSH_DIR=/home/dokku/.ssh

  mkdir -p "$DOKKU_SSH_DIR"
  chown -R dokku:dokku /home/dokku

  chmod 700 "$DOKKU_SSH_DIR"
  if [[ "$(ls -A $DOKKU_SSH_DIR)" ]]; then
    chmod 600 $DOKKU_SSH_DIR/*
  fi

  # configure sshd
  sed -i \
    -e "s|^[#]*UsePAM yes|UsePAM no|" \
    -e "s|^[#]*UsePrivilegeSeparation yes|UsePrivilegeSeparation no|" \
    -e "s|^[#]*PasswordAuthentication yes|PasswordAuthentication no|" \
    -e "s|^[#]*LogLevel INFO|LogLevel VERBOSE|" \
    /etc/ssh/sshd_config
  echo "UseDNS no" >> /etc/ssh/sshd_config

  if [[ "$(ls -A /var/lib/dokku/ssh)" ]]; then
    local USERNAME_TMP_DIR=$(mktemp -d "/tmp/username.XXXX")
    trap 'rm -rf "$USERNAME_TMP_DIR" > /dev/null' RETURN INT TERM

    for f in /var/lib/dokku/ssh/*; do
      echo "$f" > "$USERNAME_TMP_DIR/u"
      local filehash=$(md5sum $USERNAME_TMP_DIR/u | cut -d ' ' -f 1)
      sshcommand acl-add dokku dokku-$filehash "$f"
    done
  fi

  exec "$@"
}

main "$@"