Split the biboumi dockerfile into two, to be able to disable the cache

docker/biboumi/Dockerfile

@@ -1,28 +1,8 @@
-# This Dockerfile creates a docker image running biboumi
+# This dockerfile uses the image built using Dockerfile.base, and installs
+# biboumi in it
 
-FROM docker.io/fedora:latest
+FROM biboumi-base
 
-RUN dnf --refresh install -y\
-    gcc-c++\
-    cmake\
-    make\
-    udns-devel\
-    sqlite-devel\
-    libuuid-devel\
-    expat-devel\
-    libidn-devel\
-    systemd-devel\
-    git\
-    python\
-    && dnf clean all
-
-# Install botan
-RUN git clone https://github.com/randombit/botan.git && cd botan && ./configure.py --prefix=/usr && make -j8 && make install && ldconfig && rm -rf /botan
-
-# Install litesql
-RUN git clone git://git.louiz.org/litesql && mkdir /litesql/build && cd /litesql/build && cmake .. -DCMAKE_INSTALL_PREFIX=/usr && make -j8 &&  cd /litesql/build && make install && ldconfig && rm -rf /litesql
-
-# Install biboumi
 RUN git clone git://git.louiz.org/biboumi && mkdir ./biboumi/build && cd ./biboumi/build &&\
    cmake .. -DCMAKE_INSTALL_PREFIX=/usr\
             -DCMAKE_BUILD_TYPE=Release\

docker/biboumi/Dockerfile.base

@@ -0,0 +1,23 @@
+# This dockerfile install all the dependencies needing to compile biboumi
+
+FROM docker.io/fedora:latest
+
+RUN dnf --refresh install -y\
+    gcc-c++\
+    cmake\
+    make\
+    udns-devel\
+    sqlite-devel\
+    libuuid-devel\
+    expat-devel\
+    libidn-devel\
+    systemd-devel\
+    git\
+    python\
+    && dnf clean all
+
+# Install botan
+RUN git clone https://github.com/randombit/botan.git && cd botan && ./configure.py --prefix=/usr && make -j8 && make install && ldconfig && rm -rf /botan
+
+# Install litesql
+RUN git clone git://git.louiz.org/litesql && mkdir /litesql/build && cd /litesql/build && cmake .. -DCMAKE_INSTALL_PREFIX=/usr && make -j8 &&  cd /litesql/build && make install && ldconfig && rm -rf /litesql

docker/biboumi/README.rst

@@ -76,3 +76,23 @@ The database is stored in the /var/lib/biboumi/ directory. If you don’t bind
 a local directory to it, the database will be lost when the container is
 stopped. If you want to keep your database between each run, bind it with
 the -v option, like this: **-v /srv/biboumi/:/var/lib/biboumi**.
+
+Building
+--------
+
+This image is built from 2 Dockerfiles:
+- Dockerfile.base: builds and installs all the dependencies needed to build and run biboumi
+- Dockerfile: builds and installs biboumi itself
+
+The goal is to be able to force the rebuild of biboumi itself (by using
+the --no-cache option) without having to rebuild and install all its
+dependencies.
+
+The build does not require any file in the build context, everything is
+fetched during the build using git or dnf.
+
+To build a biboumi image named “foo/biboumi”, you can run the script:
+
+```
+./build-docker.sh foo/biboumi
+```

docker/biboumi/build-docker.sh

@@ -0,0 +1,14 @@
+#!/bin/sh
+
+if [[ -z "$1" ]]; then
+    echo "Usage: ./build-docker.sh <image_name>"
+    echo "Example: ./build-docker.sh docker.io/coucou/biboumi"
+    exit 1
+fi
+
+directory=$(dirname $0)
+image_name=$1
+
+echo $directory
+docker build -t biboumi-base $directory -f $directory/Dockerfile.base
+docker build -t $image_name  $directory -f $directory/Dockerfile --no-cache