lxc_manager_node/README.md

lxc_manager_node

This has been tested on clean install of ubuntu 14.04 64bit.

install

Update you system to the newest packages and reboot. You may need to do this several times:

sudo apt-get update && sudo apt-get upgrade -y && sudo reboot

Once there are no more updates, add the virt user:

sudo adduser virt

Make the password something strong, and remember it.

Now you can install the packages we need:

sudo add-apt-repository ppa:ubuntu-lxc/stable
sudo add-apt-repository ppa:ubuntu-lxc/cgmanager-stable
sudo apt-get update && sudo apt-get upgrade
sudo apt-get install git nodejs npm lxc redis-server

remap nodejs to node:

sudo ln -s /usr/bin/nodejs /usr/bin/node

And install the node packages:

sudo npm install -g forever

give the virt user network access:

echo "virt veth lxcbr0 1024" | sudo tee -a /etc/lxc/lxc-usernet

lets set up the config file for the virt user, first switch users:

su virt

The lines below will add the proper config file:

mkdir -p ~/.config/lxc
echo "lxc.id_map = u 0 `grep -oP '^virt:\K\d+' /etc/subuid` `grep -oP '^virt:\d+:\K\d+' /etc/subuid`" > ~/.config/lxc/default.conf
echo "lxc.id_map = g 0 `grep -oP '^virt:\K\d+' /etc/subgid` `grep -oP '^virt:\d+:\K\d+' /etc/subgid`" >> ~/.config/lxc/default.conf
echo "lxc.network.type = veth" >> ~/.config/lxc/default.conf
echo "lxc.network.link = lxcbr0" >> ~/.config/lxc/default.conf

Its safer at this point to reboot the system, exit back to the privlaged user and reboot

SSH or log dercily into the virt user!!! this will not if you use su!

Now you can can create a test container:

lxc-create -t download -n test-ubuntu -- -d ubuntu -r trusty -a amd64

start and attach the container to make sure everthing is ok:

lxc-start -n test-ubuntu -d
lxc-attach -n test-ubuntu

If everything worked you can stop and delete the container

lxc-stop -n test-ubuntu
lxc-destroy -n test-ubuntu

sudo add-apt-repository ppa:ubuntu-lxc/stable
sudo add-apt-repository ppa:ubuntu-lxc/cgmanager-stable 

auto start

crontab

@reboot /usr/local/bin/forever start -a -o /home/virt/lxc_manager_node/server.out.log -e /home/virt/lxc_manager_node/server.err.log /home/virt/lxc_manager_node/bin/www

##rc.local

sudo cgm create all virt
sudo cgm chown all virt $(id -u virt) $(id -g virt)