docker vlan with socketplane on bare-metal node

multi-host networking between Dockerhosts using Open vSwitch and Consul as core enablers by building VXLAN tunnels between hosts to connect docker containers on the same virtual(logical) network with no remote/external SDN controller needed

it will install OVS and Docker and start a socketplane container that runs Consul for managing network state

install

1: git clone https://github.com/socketplane/socketplane

2: chmod u+x scripts/install.sh

3：first node

sudo BOOTSTRAP=true ./scripts/install.sh 

Subsequent Nodes:

3: sudo ./scripts/install.sh

4: sudo socketplane run -itd ubuntu

5： sudo socketplane network list

UNinstall

sudo socketplane uninstall

 cgroups

The first step, on Ubuntu, is to install the cgroups packages:

sudo apt-get install cgroup-bin cgroup-lite libcgroup1

This creates a few files for you. Notably:

• /sys/fs/cgroup is created, which has a bunch of folders in a sort of virtual filesystem that "represents" your cgroup.
• /etc/init/cgroup-lite.conf. cgroup-lite.conf creates the /sys/fs/cgroup directory, based on the contents of
• /proc/cgroups, which specifies what groups cgroup-lite should create.

 cgroup created on boot

Here's what I ended up putting in my /etc/cgconfig.conf:

group limitgroup {
  perm {
    admin {
      uid = root;
      gid = root;
    }
    task {
      uid = 1001;
      gid = 1001;
    }  
  }
  cpu {
    cpu.shares = "768";
  }
  memory {
    memory.limit_in_bytes = "3G";
  }            
}

cgconfigparser -l /etc/cgconfig.conf

This parses and then "executes" your cgconfig file; that is, if it parses correctly, it'll create your groups. I fought with creating mount directives in this file for quite a few reboots, but finally I just modified my /etc/init/cgroup-lite.conf and added the cgconfigparser -l /etc/cgconfig.conf line below the /bin/cgroups-mount line. So the modified contents of the pre-start section in /etc/init/cgroup-lite.conf file looked like

pre-start script
        test -x /bin/cgroups-mount || { stop; exit 0; }
        test -d /sys/fs/cgroup || { stop; exit 0; }
        /bin/cgroups-mount
        cgconfigparser -l /etc/cgconfig.conf
end script

[1] http://thenewstack.io/sdn-docker-real-changes-ahead/

[2] https://aucouranton.com/2015/01/16/docker-virtual-networking-with-socketplane-io/
[3] https://www.devinhoward.ca/technology/2015/feb/implementing-cgroups-ubuntu-or-debian