modify repo and docs for lxc only

lxc/notes.txt

@@ -1,38 +0,0 @@
-# install
-yum install lxc lxc-templates debootstrap libvirt
-
-# create container
-lxc-create -t download -n piston
-select ubuntu, bionic, amd64
-
-# start container
-lxc-start -n piston -d
-
-# shell in and install stuff
-lxc-attach -n piston
-export PATH=/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin
-sed -i 's/http:\/\/archive.ubuntu.com\/ubuntu/http:\/\/mirror.math.princeton.edu\/pub\/ubuntu/' /etc/apt/sources.list
-apt-get update
-apt-get -y install git tzdata nano dpkg-dev build-essential python python3 ruby nodejs golang php7.2 r-base mono-complete nasm openjdk-8-jdk
-apt-get -y install ubuntu-make
-umake swift
-set dir to /opt/swift/swift-lang
-ln -s /opt/swift/swift-lang/usr/bin/swift /usr/bin/swift
-
-
-# create users and apply limits
-for i in {1..150}; do
-    #userdel runner$i
-    useradd -M runner$i
-    usermod -d /tmp runner$i
-    echo "runner$i soft nproc 64" >> /etc/security/limits.conf
-    echo "runner$i hard nproc 64" >> /etc/security/limits.conf
-    echo "runner$i soft nofile 2048" >> /etc/security/limits.conf
-    echo "runner$i hard nofile 2048" >> /etc/security/limits.conf
-done
-
-# remove home dir
-rm -rf /home/ubuntu
-
-# set tmp
-chmod 755 /tmp