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more dockerization work

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[From @joshdata: This is part of @toilal's work in #377 and 1eb77c332b. The changes are:

* Separates out the runit configuration from starting Mail-in-a-Box setup so that Mail-in-a-Box setup does not block the starting of runit services and we can assume that runit is running during setup (i.e. we can restart services).
* Adds a SKIP_INSTALL flag so that the container can be restarted without re-running the whole Mail-in-a-Box setup.
* Made containers/docker/run more flexible.
* I'm also adding some "|| exit 0"s to the run script to stop if there are any docker errors.
* I'm also adding the prereqs installs from questions.sh into Dockerfile so we don't have to reinstall each time.

]
This commit is contained in:
Toilal
2015-04-04 17:50:16 +02:00
committed by Joshua Tauberer
parent 4eb9af2ebd
commit e004041de2
11 changed files with 258 additions and 144 deletions
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31
Dockerfile
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@@ -19,8 +19,15 @@ FROM phusion/baseimage:0.9.16
# Dockerfile metadata.
MAINTAINER Joshua Tauberer (http://razor.occams.info)
EXPOSE 25 53/udp 53/tcp 80 443 587 993
VOLUME /data
EXPOSE 25 53/udp 53/tcp 80 443 587 993 4190
VOLUME /home/user-data
# Use baseimage's init system. A correct init process is required for
# process #1 in order to have a functioning Linux system.
CMD ["/sbin/my_init"]
# Create the user-data user, so the start script doesn't have to.
RUN useradd -m user-data
# Docker has a beautiful way to cache images after each step. The next few
# steps of installing system packages are very intensive, so we take care
@@ -35,20 +42,16 @@ RUN DEBIAN_FRONTEND=noninteractive apt-get upgrade -y
# Install packages needed by Mail-in-a-Box.
ADD containers/docker/apt_package_list.txt /tmp/mailinabox_apt_package_list.txt
RUN DEBIAN_FRONTEND=noninteractive apt-get install -y $(cat /tmp/mailinabox_apt_package_list.txt)
RUN DEBIAN_FRONTEND=noninteractive apt-get install -y rsyslog
RUN rm -f /tmp/mailinabox_apt_package_list.txt
RUN apt-get clean
# Create the user-data user, so the start script doesn't have to.
RUN useradd -m user-data
# from questions.sh -- needs merging into the above line
RUN DEBIAN_FRONTEND=noninteractive apt-get install -y dialog python3 python3-pip
RUN pip3 install "email_validator==0.1.0-rc4"
# Now add Mail-in-a-Box to the system.
ADD . /usr/local/mailinabox
# We can't know things like the IP address where the container will eventually
# be deployed until the container is started. We also don't want to create any
# private keys during the creation of the image --- that should wait until the
# container is started too. So our whole setup process is deferred until the
# container is started.
RUN mkdir -p /etc/my_init.d
RUN ln -s /usr/local/mailinabox/containers/docker/init.sh /etc/my_init.d/20-mailinabox.sh
# Configure runit services.
RUN /usr/local/mailinabox/containers/docker/tools/configure_services.sh
# Add my_init scripts
ADD containers/docker/my_init.d/* /etc/my_init.d/