dcos-net

DC/OS Net (or dcos-net) is a networking layer of The Datacenter Operating System (or DC/OS).

Features

dcos-net is responsible for the following:

• Distributed CRDT store with multicast and failure detector capabilities

• DNS resolver and forwarder

• Orchestration of virtual overlay networks using VXLAN

• Distributed Layer 4 virtual IP load balancing

• Network metrics (Enterprise DC/OS only)

For more information please see DC/OS documentation.

Dependencies

• Erlang/OTP 22.x
• C compiler
• GNU make
• libsodium 1.0.16+

To run common tests you can run make test on any Linux-based system with the following list of additional dependencies:

• dig (dnsutils or bind-utils)
• iproute2
• ipvsadm

To run dcos-net, Exhibitor, Apache ZooKeeper, Apache Mesos, and Mesos-DNS are required too.

Development

You can build, check, and test dcos-net in a development image using make docker-compile, make docker-check, and make docker-test respectively. All makefile targets with docker- prefix build development image with all dependencies and run rebar3 in that image on the host directory.

To check your dcos-net build on DC/OS you can use miniDC/OS. In order to do so please repeat the following steps:

1. Download a DC/OS build:

   curl -O https://downloads.dcos.io/dcos/testing/master/dcos_generate_config.sh

2. Create a DC/OS cluster with 3 agent nodes (the minimum for development would be 1 node):

   make minidcos-create MINIDCOS_AGENTS=3

3. Build and run dcos-net off you local repository on a particular node, in this case it is master_0:

   make minidcos-dev MINIDCOS_NODE=master_0

4. Open dcos-shell on a node (agent_0, agent_1, ... agent_n):

   make minidcos-shell MINIDCOS_NODE=agent_1

5. Destroy the cluster:

   make minidcos-destroy

Alternatively, you may build and run all the components yourself. Please refer to the instructions on how to build, configure, and run dcos-net locally.