Installation Quick Start
git clone https://github.com/singularityware/singularity.git
cd singularity
./autogen.sh
./configure --prefix=/usr/local
make
sudo make install
Command Quick Start
Shell into container
singularity shell --contain /tmp/Centos7.img
Singularity.Centos7.img> ps aux
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
gmk 1 0.0 0.3 115372 1768 pts/6 S 12:23 0:00 /bin/bash --norc --noprofile
gmk 2 0.0 0.3 151024 1800 pts/6 R+ 12:23 0:00 ps aux
Singularity.Centos7.img> exit
I am the same user inside the container as outside the container
id
uid=1000(gmk) gid=1000(gmk) groups=1000(gmk),10(wheel),2222(testgroup)
singularity exec /tmp/Centos7.img id
uid=1000(gmk) gid=1000(gmk) groups=1000(gmk),10(wheel),2222(testgroup)
Files on the host can be reachable from within the container
echo "Hello World" > /home/gmk/testfile
singularity exec /tmp/Centos7.img cat /home/gmk/testfile
Hello World
Switching operating systems is as easy as pointing to a different image!
singularity exec /tmp/Centos7.img cat /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
singularity exec /tmp/SL6.img cat /etc/redhat-release
Scientific Linux release 6.8 (Carbon)
singularity exec /tmp/Debian-stable.img cat /etc/debian_version
8.5
singularity exec /tmp/Ubuntu-trusty.img cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04 LTS"
