Add swapfile to avoid Errno::ENOMEM: Cannot allocate memory - fork(2)

Author: yahonda

bootstrap.sh

@@ -6,6 +6,13 @@ function install {
     apt-get -y install "$@" >/dev/null 2>&1
 }
 
+echo adding swap file
+fallocate -l 2G /swapfile
+chmod 600 /swapfile
+mkswap /swapfile
+swapon /swapfile
+echo '/swapfile none swap defaults 0 0' >> /etc/fstab
+
 echo updating package information
 apt-add-repository -y ppa:brightbox/ruby-ng >/dev/null 2>&1
 apt-get -y update >/dev/null 2>&1