Adding upstream version 20210725.upstream/20210725

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+.. Open Infrastructure: compute-tools
+
+.. Copyright (C) 2014-2021 Daniel Baumann <daniel.baumann@open-infrastructure.net>
+..
+.. SPDX-License-Identifier: GPL-3.0+
+..
+.. This program 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 3 of the License, or
+.. (at your option) any later version.
+..
+.. This program 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.
+..
+.. You should have received a copy of the GNU General Public License
+.. along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+===============
+container-limit
+===============
+
+-------------------------------
+Limit ressources of a container
+-------------------------------
+
+:manual section: 1
+:manual group: Open Infrastructure
+
+Synopsis
+========
+
+| **container limit** ['OPTIONS']
+
+Description
+===========
+
+The **container limit** command limits ressources available to a container at
+runtime.
+
+Options
+=======
+
+The following **container limit** options are available:
+
+-n, --name='NAME':
+  Specify container name.
+
+--blockio-device-weight='DEVICE WEIGHT':
+  Specify device specific blockio weight, see systemd.resource-control(5).
+
+--blockio-read-bandwidth='DEVICE BYTES':
+  Specify device specific blockio read bandwidth, see
+  systemd.resource-control(5).
+
+-b, --blockio-weight='WEIGHT':
+  Specify general blockio weight, see systemd.resource-control(5).
+
+--blockio-write-bandwidth='DEVICE BYTES':
+  Specify device specific blockio write bandwidth, see
+  systemd.resource-control(5).
+
+-c, --cpu-quota='QUOTA':
+  Specify CPU quota, see systemd.resource-control(5).
+
+--cpu-shares='SHARES':
+  Specify CPU shares, see systemd.resource-control(5).
+
+-m, --memory-limit='BYTES':
+  Specify memory limit, see systemd.resource-control(5).
+
+-t, --tasks-max='NUMBER':
+  Specify tasks max, see systemd.resource-control(5).
+
+Examples
+========
+
+Set blockio weight for the example.net container:
+
+  sudo container limit -n example.net --blockio-weight 100
+
+Set CPU quota for the example.net container:
+
+  sudo container limit -n example.net --cpu-quota 10%
+
+Set memory limit for the example.net container to 1GB:
+
+  sudo container limit -n example.net --memory-limit 1G
+
+Set tasks max for the example.net container to 100:
+
+  sudo container limit -n example.net --tasks-max 100
+
+See also
+========
+
+| compute-tools(7),
+| container(1).
+
+Homepage
+========
+
+More information about compute-tools and the Open Infrastructure project can be
+found on the homepage at https://open-infrastructure.net.
+
+Contact
+=======
+
+Bug reports, feature requests, help, patches, support and everything else are
+welcome on the Open Infrastructure Software Mailing List
+<software@lists.open-infrastructure.net>.
+
+Debian specific bugs can also be reported in the Debian Bug Tracking System
+(https://bugs.debian.org).
+
+Authors
+=======
+
+compute-tools were written by Daniel Baumann
+<daniel.baumann@open-infrastructure.net> and others.