Merge branch '15397-remove-obsolete-apis'

[arvados.git] / doc / install / singularity.html.textile.liquid

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----
-layout: default
-navsection: installguide
-title: Singularity container runtime
-...
-{% comment %}
-Copyright (C) The Arvados Authors. All rights reserved.
-
-SPDX-License-Identifier: CC-BY-SA-3.0
-{% endcomment %}
-
-h2(#overview). Overview
-
-Please refer to the "Singularity":{{site.baseurl}}/architecture/singularity.html documentation in the Architecture section.
-
-h2(#configuration). Configuration
-
-To use singularity, first make sure "Singularity is installed":https://sylabs.io/guides/3.7/user-guide/quick_start.html on your cloud worker image or SLURM/LSF compute nodes as applicable. Note @squashfs-tools@ is required.
-
-<notextile>
-<pre><code>$ <span class="userinput">singularity version</span>
-3.7.4
-$ <span class="userinput">mksquashfs -version</span>
-mksquashfs version 4.3-git (2014/06/09)
-[...]
-</code></pre>
-</notextile>
-
-Then update @Containers.RuntimeEngine@ in your cluster configuration:
-
-<notextile>
-<pre><code>      # Container runtime: "docker" (default) or "singularity"
-      RuntimeEngine: singularity
-</code></pre>
-</notextile>
-
-Restart your dispatcher (@crunch-dispatch-slurm@, @arvados-dispatch-cloud@, or @arvados-dispatch-lsf@) after updating your configuration file.
-
-h2(#singularity_configuration). Singularity configuration
-
-Docker images are converted on the fly by @mksquashfs@, which can consume a considerable amount of RAM. The RAM usage of mksquashfs can be restricted in @/etc/singularity/singularity.conf@ with a line like @mksquashfs mem = 512M@. The amount of memory made available for mksquashfs should be configured lower than the smallest amount of memory requested by a container on the cluster to avoid the conversion being killed for using too much memory.