Files
ironic-python-agent-builder/dib/ironic-python-agent-ramdisk/README.rst
Julia Kreger 46b72a7efc set a maximum systemd journal size
We've noticed a trend with deploys where we seem to use up all of the
free space in the ramdisk, and this could distinctly be systemd.

While we're not logging it, we odn't need infinite logs either because
the default pattern is likely to consume quite a bit more space than we
would like to use.

As such, set a max size.

Related-Bug: 2116135
Change-Id: Iae94278640d79232ec66402c799e4bd6e42336df
Signed-off-by: Julia Kreger <juliaashleykreger@gmail.com>
2025-08-04 21:16:03 +00:00

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===========================
ironic-python-agent-ramdisk
===========================
Builds a ramdisk with ironic-python-agent.
More information can be found at:
https://docs.openstack.org/ironic-python-agent/latest/
Beyond installing the ironic-python-agent, this element does the following:
* Installs the ``dhcp-all-interfaces`` so the node, upon booting, attempts to
obtain an IP address on all available network interfaces.
* Disables the ``iptables`` service on SysV and systemd based systems.
* Disables the ``ufw`` service on Upstart based systems.
* Installs packages required for the operation of the ironic-python-agent::
``qemu-utils`` ``parted`` ``hdparm`` ``util-linux`` ``genisoimage``
* When installing from source, ``python-dev`` and ``gcc`` are also installed
in order to support source based installation of ironic-python-agent and its
dependencies.
* Install the certificate if any, which is set to the environment variable
``DIB_IPA_CERT`` for validating the authenticity by ironic-python-agent. The
certificate can be self-signed certificate or CA certificate.
* Compresses initramfs with command specified in environment variable
``DIB_IPA_COMPRESS_CMD``, which is 'gzip' by default. This command should
listen for raw data from stdin and write compressed data to stdout. Command
can be with arguments.
* Configures rescue mode if ``DIB_IPA_ENABLE_RESCUE`` is not set to ``false``.
* By default, sets a maximum size for the ramdisk systemd journal to 15M. This
can be disabled by setting ``DIB_IPA_DISABLE_JOURNAL_MAX_LOG_SIZE`` to any
value which is not ``False``.
This element outputs three files:
- ``$IMAGE-NAME.initramfs``: The deploy ramdisk file containing the
ironic-python-agent (IPA) service.
- ``$IMAGE-NAME.kernel``: The kernel binary file.
.. note::
The package based install currently only enables the service when using the
systemd init system. This can easily be changed if there is an agent
package which includes upstart or sysv packaging.
.. note::
Using the ramdisk will require at least 1.5GB of ram