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DC/OS Mesos Modules

Mesos modules provide a way to easily extend inner workings of Mesos by creating and using shared libraries that are loaded on demand. Modules can be used to customize Mesos without having to recompiling/relinking for each specific use case. Modules can isolate external dependencies into separate libraries, thus resulting into a smaller Mesos core. Modules also make it easy to experiment with new features. For example, imagine loadable allocators that contain a VM (Lua, Python, …) which makes it possible to try out new allocator algorithms written in scripting languages without forcing those dependencies into the project. Finally, modules provide an easy way for third parties to easily extend Mesos without having to know all the internal details.

For more details, please see Mesos Modules.

Prerequisites

Mesos

To build Mesos modules, you first need to build Mesos. On a fresh clone of the Mesos repository:

cd <mesos-source>
./bootstrap
mkdir build
cd build
../configure --enable-libevent --enable-ssl --enable-install-module-dependencies --enable-launcher-sealing --disable-libtool-wrappers
make

In order to compile the Mesos modules tests, --enable-tests-install should be added to the configure's command-line arguments too.

Mesos (cmake)

cd <mesos-source>
mkdir build
cd build
cmake .. -DENABLE_SSL=ON -DBUILD_TESTING=OFF -DENABLE_LAUNCHER_SEALING=ON -DCMAKE_BUILD_TYPE=Release
cmake --build . --config Release -- -j2

Systemd journald headers

Some of these modules also require systemd development headers and libraries. For example on CentOS 7:

sudo yum install systemd-devel

Vargrant development environment

You can also use vagrant for your development environment. The repo contains Vagrantfile that will give you vagrant image with all development dependencies. The parent directory would be mounted as /work inside that image.

Build Instructions

To start, generate the required build files and create a build directory:

./bootstrap
mkdir build
cd build

If building against an installation of Mesos:

../configure --with-mesos=/path/to/mesos/installation

If building against the Mesos source directory:

../configure --with-mesos-root=/path/to/mesos --with-mesos-build-dir=/path/to/mesos/build

Finally:

make
sudo make check

If make fails complaining that there are some protobuf options that are unknown to protoc, it is likely that configure used protoc installed system-wide. In order to make it use the one from the Mesos build, please run:

../configure --with-mesos=/path/to/mesos/installation \
             --with-protobuf=/path/to/mesos/installation/lib/mesos/3rdparty

And then execute make again.

Build Instructions (cmake)

mkdir build
cd build
cmake .. -DBUILD_TESTING=OFF -DCMAKE_BUILD_TYPE=Release
cmake --build . --config Release -- -j2

Using Modules

See the README.md in each module folder for instructions.