singularity instance start

Start a named instance of the given container image


The instance start command allows you to create a new named instance from an existing container image that will begin running in the background. If a startscript is defined in the container metadata the commands in that script will be executed with the instance start command as well. You can optionally pass arguments to startscript

singularity instance start accepts the following container formats

*.sif Singularity Image Format (SIF). Native to Singularity 3.0+

*.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 Singularity meta-data.

instance://* A local running instance of a container. (See the instance

command group.)

library://* A SIF container hosted on a Library


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.

singularity instance start [start options...] <container path> <instance name> [startscript args...]


$ singularity instance start /tmp/my-sql.sif mysql

$ singularity shell instance://mysql
Singularity my-sql.sif> pwd
Singularity my-sql.sif> ps
  1 pts/0    00:00:00 sinit
  2 pts/0    00:00:00 bash
  3 pts/0    00:00:00 ps
Singularity my-sql.sif>

$ singularity instance stop /tmp/my-sql.sif mysql
Stopping /tmp/my-sql.sif mysql


    --add-caps string               a comma separated capability list to add
    --allow-setuid                  allow setuid binaries in container (root only)
    --apply-cgroups string          apply cgroups from file for container processes (root only)
-B, --bind strings                  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
    --boot                          execute /sbin/init to boot container (root only)
-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
    --disable-cache                 dont use cache, and dont 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 string               pass environment variables from file to contained process
-f, --fakeroot                      run container in new user namespace as uid 0
    --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 /sshfs'. Implies --pid.
-h, --help                          help for start
-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/circleci")
    --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)
    --network string                specify desired network type separated by commas, each network will bring up a dedicated interface inside container (default "bridge")
    --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 singularity.conf, specify absolute destination path to disable a bind path entry, or 'bind-paths' to disable all bind path entries.
    --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
    --pid-file string               write instance PID to the file with the given name
    --pids-limit int                Limit number of container PIDs, use -1 for unlimited
    --rocm                          enable experimental Rocm support
-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)
-u, --userns                        run container in a new user namespace, allowing Singularity to run completely unprivileged on recent kernels. This disables some features of Singularity, for example it only works with sandbox images.
    --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 Singularity 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)


Auto generated by spf13/cobra on 25-Aug-2023