Slurm Workload Manager -

    .SH "DESCRIPTION"
    \fBsackd\fR is the Slurm Auth and Cred Kiosk Daemon. It can be used on login
    nodes that are not running slurmd daemons to allow authentication to the
    cluster. The program will run as the \fISlurmUser\fR. When running in Slurm's
    "configless" mode, in which case configuration files are retrieved and written
    under the /run/slurm/conf directory (unless \fBRUNTIME_DIRECTORY\fR is set).

    .SH "OPTIONS"
    .TP
    \fB\-\-ca\-cert\-file <file>\fR
    Absolute path to CA certificate used for fetching configuration when running
    configless in a TLS enabled cluster.
    .IP

    .TP
    \fB\-\-conf\-server host[:port]\fR
    Retrieve configs from slurmctld running at \fIhost[:port]\fR.
    Requires slurmctld support provided by setting \fBenable_configless\fR in
    SlurmctldParameters.
    .IP

    .TP
    \fB\-D\fR
    Run \fBsackd\fR in the foreground with logging copied to stderr.
    .IP

    .TP
    \fB\-\-disable\-reconfig\fR
    Fetch configurations in configless mode once, but do not register with slurmctld
    for further reconfiguration updates.
    .IP

    .TP
    \fB\-f config\fR
    Read configuration from the specified file.
    .IP

    .TP
    \fB\-h\fR
    Help; print a brief summary of command options.
    .IP

    .TP
    \fB\-\-jwks\-file <file>\fR
    Read auth/slurm JWKS information from the specified file. Default value is
    slurm.jwks located in the same directory as slurm.conf.
    .IP

    .TP
    \fB\-\-key\-file <file>\fR
    Read auth/slurm authentication key from the specified file. Default value is

    .TP
    \fB\-v\fR
    Verbose mode. Multiple \-v's increase verbosity.
    .IP

    .SH "ENVIRONMENT VARIABLES"
    The following environment variables can be used to override settings
    compiled into sackd.

    .TP
    \fBABORT_ON_FATAL\fR
    When a fatal error is detected, use abort() instead of exit() to terminate the
    process. This allows backtraces to be captured without recompiling Slurm.
    .IP

    .TP
    \fBRUNTIME_DIRECTORY\fR
    Absolute path governing the location for both the configuration cache sackd
    maintains, and the sack.socket unix socket used to provide authentication
    services.

    If multiple sackds need to be started on the same login node, the
    \fBRuntimeDirectory\fR systemd unit option should be set to
    \fBslurm-<clustername>\fR. Systemd v240+ automatically sets
    \fBRUNTIME_DIRECTORY\fR to \fB/run/$RuntimeDirectory\fR for each sackd service,
    otherwise it requires manual setting (i.e. via \fBEnvironmentFile\fR unit
    option).

    If this is not set, the default value is \fB/run/slurm/\fR.
    .IP

    .TP
    \fBSACKD_DEBUG\fR
    Set debug level explicitly for syslog and stderr. Valid values are 0\-9, or the
    same string values as the debug options such as SlurmctldDebug in
    slurm.conf(5).
    .IP

    .TP
    \fBSACKD_DISABLE_RECONFIG\fR
    Same as \fB\-\-disable\-reconfig\fR.
    .IP

    .TP
    \fBSACKD_PORT\fR
    Same as \fB\-\-port\fR.
    .IP

    .TP
    \fBSACKD_STDERR_DEBUG\fR
    Set debug level explicitly for stderr. Valid values are 0\-9, or the same
    .TP
    \fBSLURM_DEBUG_FLAGS\fR
    Specify debug flags for sackd to use. See DebugFlags in the \fBslurm.conf\fR(5)
    man page for a full list of flags. The environment variable takes precedence
    over the setting in the slurm.conf.
    .IP

    .SH "SIGNALS"

    .TP 6
    \fBSIGINT\fR
    \fBsackd\fR will shutdown cleanly.
    .IP

    .TP
    \fBSIGHUP\fR
    \fBsackd\fR will reconfigure.
    .IP

    .TP
    \fBSIGUSR2 SIGPIPE\fR
    This signal is explicitly ignored.
    .IP

    .SH "COPYING"
    Copyright (C) SchedMD LLC.
    .LP
    This file is part of Slurm, a resource management program.
    For details, see <https://slurm.schedmd.com/>.
    .LP
    Slurm is free software; you can redistribute it and/or modify it under
    the terms of the GNU General Public License as published by the Free
    Software Foundation; either version 2 of the License, or (at your option)
    any later version.
    .LP
    Slurm is distributed in the hope that it will be useful, but WITHOUT ANY
    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
    details.

    .SH "SEE ALSO"
    \fBslurm.conf\fR(5), \fBslurmctld\fR(8)