Provided by: apptainer_1.4.0-6_amd64 
NAME
run-singularity.apptainer - launch a Singularity container with a runscript
DESCRIPTION
Run the user-defined default command within a container
Usage:
apptainer run [run options...] <container> [args...]
Description:
This command will launch an Apptainer container and execute a runscript if one is defined for that
container. The runscript is a metadata file within the container that contains shell commands. If
the file is present (and executable) then this command will execute that file within the container
automatically. All arguments following the container name will be passed directly to the
runscript.
apptainer run accepts the following container formats:
*.sif Singularity Image Format (SIF). Native to Singularity (3.0+) and Apptainer (v1.0.0+)
*.sqsh SquashFS format. Native to Singularity 2.4+
*.img ext3 format. Native to Singularity versions < 2.4.
directory/
sandbox format. Directory containing a valid root file system and optionally Apptainer meta-data.
instance://*
A local running instance of a container. (See the instance command group.)
library://*
A SIF container hosted on a Library (no default)
docker://*
A Docker/OCI container hosted on Docker Hub or another OCI registry.
shub://*
A container hosted on Singularity Hub.
oras://*
A SIF container hosted on an OCI registry that supports the OCI Registry As Storage (ORAS)
specification.
OPTIONS
--add-caps string
a comma separated capability list to add
--allow-setuid
allow setuid binaries in container (root only)
--app string
set an application to run inside a container
--apply-cgroups string
apply cgroups from file for container processes (root only)
--authfile string
Docker-style authentication file to use for writing/reading OCI registry credentials
-B, --bind stringArray
a user-bind path specification. spec has the format src[:dest[:opts]], where src and dest are
outside and inside paths. If dest is not given, it is set equal to src. Mount options ('opts')
may be specified as 'ro' (read-only) or 'rw' (read/write, which is the default). Multiple bind
paths can be given by a comma separated list.
--blkio-weight int
Block IO relative weight in range 10-1000, 0 to disable
--blkio-weight-device strings
Device specific block IO relative weight
-e, --cleanenv
clean environment before running container
--compat
apply settings for increased OCI/Docker compatibility. Infers --containall, --no-init, --no-umask,
--no-eval, --writable-tmpfs.
-c, --contain
use minimal /dev and empty other directories (e.g. /tmp and $HOME) instead of sharing filesystems
from your host
-C, --containall
contain not only file systems, but also PID, IPC, and environment
--cpu-shares int
CPU shares for container (default -1)
--cpus string
Number of CPUs available to container
--cpuset-cpus string
List of host CPUs available to container
--cpuset-mems string
List of host memory nodes available to container
--cwd string
initial working directory for payload process inside the container (synonym for --pwd)
--disable-cache
do not use or create cache
--dns string
list of DNS server separated by commas to add in resolv.conf
--docker-host string
specify a custom Docker daemon host
--docker-login
login to a Docker Repository interactively
--drop-caps string
a comma separated capability list to drop
--env stringToString
pass environment variable to contained process (default [])
--env-file strings
pass environment variables from file to contained process
-f, --fakeroot
run container with the appearance of running as root
--fusemount strings
A FUSE filesystem mount specification of the form '<type>:<fuse command> <mountpoint>' - where
<type> is 'container' or 'host', specifying where the mount will be performed ('container-daemon'
or 'host-daemon' will run the FUSE process detached). <fuse command> is the path to the FUSE
executable, plus options for the mount. <mountpoint> is the location in the container to which the
FUSE mount will be attached. E.g. 'container:sshfs 10.0.0.1:/ /sshfs'. Implies --pid.
-h, --help
help for run
-H, --home string
a home directory specification. spec can either be a src path or src:dest pair. src is the
source path of the home directory outside the container and dest overrides the home directory
within the container. (default "/home/buildd")
--hostname string
set container hostname
-i, --ipc
run container in a new IPC namespace
--keep-privs
let root user keep privileges in container (root only)
--memory string
Memory limit in bytes
--memory-reservation string
Memory soft limit in bytes
--memory-swap string
Swap limit, use -1 for unlimited swap
--mount stringArray
a mount specification e.g. 'type=bind,source=/opt,destination=/hostopt'.
-n, --net
run container in a new network namespace (sets up a bridge network interface by default)
--netns-path string
join the network namespace at the specified path (as root, or if permitted in apptainer.conf)
--network string
specify desired network type separated by commas, each network will bring up a dedicated interface
inside container
--network-args strings
specify network arguments to pass to CNI plugins
--no-eval
do not shell evaluate env vars or OCI container CMD/ENTRYPOINT/ARGS
--no-home
do NOT mount users home directory if /home is not the current working directory
--no-https
use http instead of https for docker:// oras:// and library://<hostname>/... URIs
--no-init
do NOT start shim process with --pid
--no-mount strings
disable one or more 'mount xxx' options set in apptainer.conf and/or specify absolute destination
path to disable a bind path entry, or 'bind-paths' to disable all bind path entries.
--no-pid
do not run container in a new PID namespace
--no-privs
drop all privileges from root user in container)
--no-umask
do not propagate umask to the container, set default 0022 umask
--nv enable Nvidia support
--nvccli
use nvidia-container-cli for GPU setup (experimental)
--oom-kill-disable
Disable OOM killer
-o, --overlay strings
use an overlayFS image for persistent data storage or as read-only layer of container
--passphrase
prompt for an encryption passphrase
--pem-path string
enter an path to a PEM formatted RSA key for an encrypted container
-p, --pid
run container in a new PID namespace
--pids-limit int
Limit number of container PIDs, use -1 for unlimited
--rocm enable experimental Rocm support
--runscript-timeout string
set the timeout duration for runscript (default 1m)
-S, --scratch strings
include a scratch directory within the container that is linked to a temporary dir (use -W to
force location)
--security strings
enable security features (SELinux, Apparmor, Seccomp)
--sharens
share the namespace and image with other containers launched from the same parent process
--unsquash
Convert SIF file to temporary sandbox before running
-u, --userns
run container in a new user namespace
--uts run container in a new UTS namespace
-W, --workdir string
working directory to be used for /tmp, /var/tmp and $HOME (if -c/--contain was also used)
-w, --writable
by default all Apptainer containers are available as read only. This option makes the file system
accessible as read/write.
--writable-tmpfs
makes the file system accessible as read-write with non persistent data (with overlay support
only)
EXAMPLES
# Here we see that the runscript prints "Hello world: " $ apptainer exec /tmp/debian.sif cat
/apptainer #!/bin/sh echo "Hello world: "
# It runs with our inputs when we run the image $ apptainer run /tmp/debian.sif one two three
Hello world: one two three
# Note that this does the same thing $ ./tmp/debian.sif one two three
For additional help or support, please visit https://apptainer.org/help/
run-singularity.apptainer 1.4.0-6 July 2025 RUN-SINGULARITY.APPTAINER(1)