.. _root_install_macos:

macOS (as root)
===============

Installing HTCondor on macOS as root user is a multi-step process.
For a multi-machine HTCondor pool, information about the roles each
machine will play can be found here: :doc:`admin-quick-start`.
Note that the ``get_htcondor`` tool cannot perform the installation
steps on macOS at present. You must follow the instructions below.

Note that all of the following commands must be run as root, except for
downloading and extracting the tarball.

The condor Service Account
--------------------------

The first step is to create a service account under which the HTCondor
daemons will run.
The commands that specify a ``PrimaryGroupID`` or ``UniqueID`` may fail with an
error that includes ``eDSRecordAlreadyExists``.
If that occurs, you will have to retry the command with a different id number
(other than ``300``).

.. code-block:: shell

    dscl . -create /Groups/condor
    dscl . -create /Groups/condor PrimaryGroupID 300
    dscl . -create /Groups/condor RealName 'Condor Group'
    dscl . -create /Groups/condor passwd '*'
    dscl . -create /Users/condor
    dscl . -create /Users/condor UniqueID 300
    dscl . -create /Users/condor passwd '*'
    dscl . -create /Users/condor PrimaryGroupID 300
    dscl . -create /Users/condor UserShell /usr/bin/false
    dscl . -create /Users/condor RealName 'Condor User'
    dscl . -create /Users/condor NFSHomeDirectory /var/empty

Download
--------

The next step is to download HTCondor.
If you want to select a specific version of HTCondor, you can download
the corresponding file from
`our website <https://htcss-downloads.chtc.wisc.edu/tarball/>`_.
Otherwise, we recommend using our download script, as follows.

.. code-block:: shell

    cd
    curl -fsSL https://get.htcondor.org | /bin/bash -s -- --download

If you use a web browser to download a tarball from our web site, then
the OS will mark the file as quarantined. All binaries extracted from
the tarball will be similarly marked. The OS will refuse to run any
binaries that are quarantined. You can remove the quarantine marking
from the tarball before extracting it, like so:

.. code-block:: shell

    xattr -d com.apple.quarantine condor.tar.gz

Install
-------

Unpack the tarball.

.. code-block:: shell

    mkdir /usr/local/condor
    tar -x -C /usr/local/condor --strip-components 1 -f condor.tar.gz

You won't need ``condor.tar.gz`` again, so you can remove it now if you wish.

Set up the log directory and default configuration files.

.. code-block:: shell

    cd /usr/local/condor
    mkdir -p local/log
    mkdir -p local/config.d
    cp etc/examples/condor_config etc/condor_config
    cp etc/examples/00-security local/config.d

If you are setting up a single-machine pool, then run the following
command to finish the configuration.

.. code-block:: shell

    cp etc/examples/00-minicondor local/config.d

If you are setting up part of a multi-machine pool, then you'll have to
make some other configuration changes, which we don't cover here.

Next, fix up the permissions of the the installed files.

.. code-block:: shell

    chown -R root:wheel /usr/local/condor
    chown -R condor:condor /usr/local/condor/local/log

Finally, make the configuration file available at one of the well-known
locations for the tools to find.

.. code-block:: shell

    mkdir -p /etc/condor
    ln -s /usr/local/condor/etc/condor_config /etc/condor


Start the Daemons
-----------------

Now, register HTCondor has a service managed by launchd and start up
the daemons.

.. code-block:: shell

    cp /usr/local/condor/etc/examples/condor.plist /Library/LaunchDaemons
    launchctl load /Library/LaunchDaemons/condor.plist
    launchctl start condor

Using HTCondor
--------------

You'll want to add the HTCondor ``bin`` and ``sbin`` directories to your
``PATH`` environment variable.

.. code-block:: shell

    export PATH=$PATH:/usr/local/condor/bin:/usr/local/condor/sbin

If you want to use the Python bindings for HTCondor, you'll want to add
them to your PYTHONPATH.

.. code-block:: shell

    export PYTHONPATH="/usr/local/condor/lib/python3${PYTHONPATH+":"}${PYTHONPATH-}"

.. include:: minicondor-test-and-quickstart.include
