Switched to a multi stage build for a significantly smaller container image.

[citadel-docker.git] / Dockerfile

diff --git a/Dockerfile b/Dockerfile
index 8dc69f82e0e847ad8da475e2735276bbe1a3a574..1426950ae8d25cb39eb66ccf87d83d07777ea330 100644 (file)
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,29 +1,104 @@
-FROM bitnami/minideb:latest
+# Dockerfile for Citadel
 
+# Debian Slim has all of the architectures we build on (amd64, i386, arm32)
+# The first stage build will bring in all of our development tools.
+FROM debian:bullseye-slim AS build-stage
+
+# The "branch" argument specifies the branch or tag from which we will build.
+ARG branch=master
+
+# All long term persistent data goes here.  Any volume driver may be used.
 VOLUME /citadel-data
 
 # Install prerequisites
-RUN install_packages make build-essential zlib1g-dev libldap2-dev libssl-dev gettext libical-dev libexpat1-dev curl libcurl4-openssl-dev git autoconf automake netbase libreadline-dev
-
-# Download and build Citadel
-WORKDIR /tmp/ctdl_build
-RUN sh -c 'git clone git://git.citadel.org/appl/gitroot/citadel.git'
-RUN sh -c 'cd /tmp/ctdl_build/citadel/libcitadel && ./bootstrap && ./configure --prefix=/usr && make && make install'
-RUN sh -c 'cd /tmp/ctdl_build/citadel/citadel && ./bootstrap && ./configure && make && make install'
-RUN sh -c 'cd /tmp/ctdl_build/citadel/webcit && ./bootstrap && ./configure && make && make install'
-RUN sh -c 'cd /tmp/ctdl_build/citadel/textclient && ./bootstrap && ./configure --prefix=/usr && make && make install'
-RUN sh -c 'cd /tmp && rm -vfr /tmp/ctdl_build'
-RUN sh -c 'rm -vrf /usr/local/citadel/data /usr/local/citadel/files /usr/local/citadel/keys /usr/local/webcit/keys'
-
-# ctdlvisor is a supervisor process that handles all of the components
-ADD ctdlvisor.c /tmp/ctdl_build
-RUN sh -c 'cd /tmp/ctdl_build && cc ctdlvisor.c -o /usr/local/bin/ctdlvisor'
+RUN apt -y update
+RUN apt -y install gcc bison make zlib1g-dev libldap2-dev libssl-dev gettext libical-dev libexpat1-dev curl libcurl4-openssl-dev git autoconf automake netbase libreadline-dev
+
+# Build our own local copy of Berkeley DB, because the one included with the system libs is too old.
+# For the container ... we're going to do static binaries because disk is cheap and the Gotards are doing it this way now too.
+RUN sh -c 'mkdir /tmp/db_build && \
+       cd /tmp/db_build && \
+       curl -k https://easyinstall.citadel.org/db-6.2.32.NC.tar.gz | tar xvzf - && \
+       cd db-6.2.32.NC/build_unix && \
+       ../dist/configure --prefix=/usr/local --disable-static --disable-compat185 --disable-cxx --disable-debug --disable-dump185 --disable-java --disable-tcl --disable-test --without-rpm && \
+       make && \
+       make install && \
+       cd /tmp && \
+       rm -fr /tmp/db_build'
+
+# Create our build directory
+RUN mkdir /tmp/ctdl_build
+
+# Deploy "ctdlvisor", a small supervisor program which runs inside the container to wrangle the various services
+ADD ctdlvisor.c /tmp
+RUN sh -c '\
+       cd /tmp && \
+       cc ctdlvisor.c -o /usr/local/bin/ctdlvisor && \
+       rm -vf /tmp/ctdlvisor.c'
+
+# Grab the repository at the specified branch or tag.  If there wasn't any change we should enjoy the cache.
+RUN sh -c '\
+       cd /tmp/ctdl_build && \
+       git clone -b $branch --single-branch git://git.citadel.org/citadel'
+
+# Build libcitadel
+RUN sh -c '\
+       cd /tmp/ctdl_build/citadel/libcitadel && \
+       ./bootstrap && \
+       ./configure --prefix=/usr/local && \
+       make && \
+       make install'
+
+# Build the Citadel Server
+RUN sh -c '\
+       export CFLAGS=-I/usr/local/include && \
+       export LDFLAGS=-L/usr/local/lib && \
+       cd /tmp/ctdl_build/citadel/citadel && \
+       ./bootstrap && \
+       ./configure && \
+       make && \
+       make install'
+
+# Build the WebCit front end
+RUN sh -c '\
+       export CFLAGS=-I/usr/local/include && \
+       export LDFLAGS=-L/usr/local/lib && \
+       cd /tmp/ctdl_build/citadel/webcit && \
+       ./bootstrap && \
+       ./configure && \
+       make && \
+       make install'
+
+# Build the text mode client
+RUN sh -c '\
+       export CFLAGS=-I/usr/local/include && \
+       export LDFLAGS=-L/usr/local/lib && \
+       cd /tmp/ctdl_build/citadel/textclient && \
+       ./configure --prefix=/usr --ctdldir=/citadel_data && \
+       make && make install && \
+       cd /tmp && \
+       rm -vfr /tmp/ctdl_build && \
+       rm -vrf /usr/local/citadel/data /usr/local/citadel/files /usr/local/citadel/keys /usr/local/webcit/keys'
+
+####################################################################################################
+
+# Second stage build is runtime only.
+FROM debian:bullseye-slim AS final-stage
+
+# All long term persistent data goes here.  Any volume driver may be used.
+VOLUME /citadel-data
+
+# Install prerequisites
+RUN apt -y update
+RUN apt -y install zlib1g libical3 libexpat1 curl libcurl4 netbase libreadline8 libldap-2.4-2 libssl1.1
+
+# Bring in Citadel and libraries
+COPY --from=build-stage /usr/local/ /usr/local/
+RUN ldconfig -v
 
 # Ports
 EXPOSE 25 80 110 119 143 443 465 504 563 587 993 995 2020 5222
 
-# We don't need the workdir anymore
-RUN rm -fr /tmp/ctdl_build
-
 # Let's go!
 ENTRYPOINT ["/usr/local/bin/ctdlvisor"]
+