FROM buildpack-deps:jessie
MAINTAINER Jakub Warmuz <jakub@warmuz.org>

# You neccesarily have to bind to 443@host as well! (ACME spec)
EXPOSE 443

# TODO: make sure --config-dir and --work-dir cannot be changed
# through the CLI (letsencrypt-docker wrapper that uses standalone
# authenticator and text mode only?)
VOLUME /etc/letsencrypt /var/lib/letsencrypt

WORKDIR /opt/letsencrypt

# no need to mkdir anything:
# https://docs.docker.com/reference/builder/#copy
# If <dest> doesn't exist, it is created along with all missing
# directories in its path.

# The following copies too much than we need...
#COPY . /opt/letsencrypt/

COPY bootstrap/debian.sh /opt/letsencrypt/src/
RUN /opt/letsencrypt/src/debian.sh newer && \
    apt-get clean && \
    rm -rf /var/lib/apt/lists/* \
           /tmp/* \
           /var/tmp/*

# the above is not likely to change, so by putting it further up the
# Dockerfile we make sure we cache as much as possible


COPY setup.py README.rst CHANGES.rst MANIFEST.in /opt/letsencrypt/src/

# all above files are necessary for setup.py, however, package source
# code directory has to be copied separately to a subdirectory...
# https://docs.docker.com/reference/builder/#copy: "If <src> is a
# directory, the entire contents of the directory are copied,
# including filesystem metadata. Note: The directory itself is not
# copied, just its contents." Order again matters, three files are far
# more likely to be cached than the whole project directory

COPY letsencrypt /opt/letsencrypt/src/letsencrypt/


RUN virtualenv --no-site-packages -p python2 /opt/letsencrypt && \
    /opt/letsencrypt/bin/pip install -e /opt/letsencrypt/src

# install in editable mode (-e) to save space: it's not possible to
# "rm -rf /opt/letsencrypt/src" (it's stays in the underlaying image);
# this might also help in debugging: you can "docker run --entrypoint
# bash" and investigate, apply patches, etc.

# TODO: is --text really necessary?
ENTRYPOINT [ "/opt/letsencrypt/bin/letsencrypt", "--text" ]
