FROM node:latest

# Set the server port as an environmental

ENV HEXO_SERVER_PORT=4000

# Set the git username and email

ENV GIT_USER="ketsuro"

ENV GIT_EMAIL="[email protected]"

# Set the user and group that the file inside docker belongs to  

ENV SCRIPT_USER="ketsuro"

ENV SCRIPT_GROUP="users"

# Install requirements 

RUN \

  apt-get update && \

  apt-get install git -y && \

  npm install hexo-cli -g

# Set workdir

WORKDIR /app

# Expose Server Port

EXPOSE ${HEXO_SERVER_PORT}

# Build a base server and configuration if it doesnt exist, then start

CMD \

  if [ "$(ls -A /app)" ]; then \

    echo "***** App directory exists and has content, continuing *****"; \

  else \

    echo "***** App directory is empty, initialising with hexo and hexo-admin*****" && \

    hexo init && \

    npm install && \

    echo "***** Installing ShokaX ****" && \

    npm add hexo-theme-shokax && \

    echo "***** Continue with hexo admin and server ****" && \

    npm install hexo-admin && \

    npm install hexo-server; \

  fi; \

  if [ ! -f /app/requirements.txt ]; then \

    echo "***** App directory contains no requirements.txt file, continuing *****"; \

  else \

    echo "***** App directory contains a requirements.txt file, installing npm requirements *****"; \

    cat /app/requirements.txt | xargs npm --prefer-offline install; \

  fi; \

  if [ "$(ls -A /app/.ssh 2>/dev/null)" ]; then \

    echo "***** App .ssh directory exists and has content, continuing *****"; \

  else \

    echo "***** App .ssh directory is empty, initialising ssh key and configuring known_hosts for common git repositories (github/gitlab) *****" && \

    rm -rf ~/.ssh/* && \

    ssh-keygen -t rsa -f ~/.ssh/id_rsa -q -P "" && \

    ssh-keyscan github.com > ~/.ssh/known_hosts 2>/dev/null && \

    ssh-keyscan gitlab.com >> ~/.ssh/known_hosts 2>/dev/null && \

    cp -r ~/.ssh /app; \

  fi; \

  echo "***** Running git config, user = ${GIT_USER}, email = ${GIT_EMAIL} *****" && \

  git config --global user.email ${GIT_EMAIL} && \

  git config --global user.name ${GIT_USER} && \

  echo "***** Copying .ssh from App directory and setting permissions *****" && \

  cp -r /app/.ssh ~/ && \

  chmod 600 ~/.ssh/id_rsa && \

  chmod 600 ~/.ssh/id_rsa.pub && \

  chmod 700 ~/.ssh && \

  echo "***** Contents of public ssh key (for deploy) - *****" && \

  cat ~/.ssh/id_rsa.pub && \

  echo "***** Starting server on port ${HEXO_SERVER_PORT} *****" && \

	useradd ${SCRIPT_USER} || echo "User already exists. Skipping" && \

	groupadd ${SCRIPT_GROUP} || echo "Group already exists. Skipping" && \

  chmod -R 777 /app && \

	chown -R ${SCRIPT_USER}:${SCRIPT_GROUP} /app && \

  hexo server -d -p ${HEXO_SERVER_PORT}