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<section id="utils-lxc-sh">
<span id="lxc-sh"></span><h1><code class="docutils literal notranslate"><span class="pre">utils/lxc.sh</span></code><a class="headerlink" href="#utils-lxc-sh" title="Permalink to this heading"></a></h1>
<aside class="sidebar">
<p class="sidebar-title">further reading</p>
<ul class="simple">
<li><p><a class="reference external" href="https://snapcraft.io">snap</a>, <a class="reference external" href="https://snapcraft.io/lxd">snapcraft LXD</a></p></li>
<li><p><a class="reference external" href="https://linuxcontainers.org/lxc/introduction/">LXC</a>, <a class="reference external" href="https://linuxcontainers.org/lxd/introduction/">LXD</a></p></li>
<li><p><a class="reference external" href="https://uk.images.linuxcontainers.org/">LXC/LXD Image Server</a></p></li>
<li><p><a class="reference external" href="https://github.com/lxc/lxd">LXD&#64;github</a></p></li>
</ul>
</aside>
<p>With the use of <em>Linux Containers</em> (<a class="reference external" href="https://linuxcontainers.org/lxc/introduction/">LXC</a>) we can scale our tasks over a stack of
containers, what we call the: <em>lxc suite</em>. The <em>searx suite</em>
(<a class="reference external" href="https://github.com/searx/searx/blob/master/utils/lxc-searx.env">lxc-searx.env</a>) is loaded by default, every time
you start the <code class="docutils literal notranslate"><span class="pre">lxc.sh</span></code> script (<em>you do not need to care about</em>).</p>
<p>Before you can start with containers, you need to install and initiate <a class="reference external" href="https://linuxcontainers.org/lxd/introduction/">LXD</a>
once:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ snap install lxd
$ lxd init --auto
</pre></div>
</div>
<p>To make use of the containers from the <em>searx suite</em>, you have to build the
<a class="reference internal" href="#lxc-sh-help"><span class="std std-ref">LXC suite containers</span></a> initial. But be warned, <strong>this might
take some time</strong>:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh build
</pre></div>
</div>
<p>A cup of coffee later, your LXC suite is build up and you can run whatever task
you want / in a selected or even in all <a class="reference internal" href="#lxc-sh-help"><span class="std std-ref">LXC suite containers</span></a>. If you do not want to build all containers, <strong>you can build just
one</strong>:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh build searx-ubu1804
</pre></div>
</div>
<p><em>Good to know …</em></p>
<p>Each container shares the root folder of the repository and the command
<code class="docutils literal notranslate"><span class="pre">utils/lxc.sh</span> <span class="pre">cmd</span></code> <strong>handles relative path names transparent</strong>, compare output
of:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh cmd -- ls -la Makefile
...
</pre></div>
</div>
<p>In the containers, you can run what ever you want, e.g. to start a bash use:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh cmd searx-ubu1804 bash
INFO: [searx-ubu1804] bash
root@searx-ubu1804:/share/searx#
</pre></div>
</div>
<p>If there comes the time you want to <strong>get rid off all</strong> the containers and
<strong>clean up local images</strong> just type:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh remove
$ sudo -H ./utils/lxc.sh remove images
</pre></div>
</div>
<section id="install-suite">
<span id="lxc-sh-install-suite"></span><h2>Install suite<a class="headerlink" href="#install-suite" title="Permalink to this heading"></a></h2>
<p>To install the complete <a class="reference internal" href="#lxc-searx-env"><span class="std std-ref">searx suite (includes searx, morty &amp; filtron)</span></a> into all <a class="reference external" href="https://linuxcontainers.org/lxc/introduction/">LXC</a> use:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh install suite
</pre></div>
</div>
<p>The command above installs a searx suite (see <a class="reference internal" href="../admin/installation.html#installation-scripts"><span class="std std-ref">Installation scripts</span></a>). To
get the IP (URL) of the filtron service in the containers use <code class="docutils literal notranslate"><span class="pre">show</span> <span class="pre">suite</span></code>
command. To test instances from containers just open the URLs in your
WEB-Browser:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ sudo ./utils/lxc.sh show suite | grep filtron
[searx-ubu1604] INFO: (eth0) filtron: http://n.n.n.246:4004/ http://n.n.n.246/searx
[searx-ubu1804] INFO: (eth0) filtron: http://n.n.n.147:4004/ http://n.n.n.147/searx
[searx-ubu1910] INFO: (eth0) filtron: http://n.n.n.140:4004/ http://n.n.n.140/searx
[searx-ubu2004] INFO: (eth0) filtron: http://n.n.n.18:4004/ http://n.n.n.18/searx
[searx-fedora31] INFO: (eth0) filtron: http://n.n.n.46:4004/ http://n.n.n.46/searx
[searx-archlinux] INFO: (eth0) filtron: http://n.n.n.32:4004/ http://n.n.n.32/searx
</pre></div>
</div>
<p>To <a class="reference internal" href="../admin/installation-nginx.html#installation-nginx"><span class="std std-ref">install a nginx</span></a> reverse proxy for filtron and
morty use (or alternatively use <a class="reference internal" href="../admin/installation-apache.html#installation-apache"><span class="std std-ref">apache</span></a>):</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>sudo -H ./utils/lxc.sh cmd -- FORCE_TIMEOUT=0 ./utils/filtron.sh nginx install
sudo -H ./utils/lxc.sh cmd -- FORCE_TIMEOUT=0 ./utils/morty.sh nginx install
</pre></div>
</div>
</section>
<section id="running-commands">
<h2>Running commands<a class="headerlink" href="#running-commands" title="Permalink to this heading"></a></h2>
<p><strong>Inside containers, you can use make or run scripts</strong> from the
<a class="reference internal" href="index.html#toolboxing"><span class="std std-ref">Admin’s tooling box</span></a>. By example: to setup a <a class="reference internal" href="../admin/buildhosts.html#buildhosts"><span class="std std-ref">Buildhosts</span></a> and run the
Makefile target <code class="docutils literal notranslate"><span class="pre">test</span></code> in the <a class="reference external" href="https://www.archlinux.org/">archlinux</a> container:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>sudo -H ./utils/lxc.sh cmd searx-archlinux ./utils/searx.sh install buildhost
sudo -H ./utils/lxc.sh cmd searx-archlinux make test
</pre></div>
</div>
</section>
<section id="setup-searx-buildhost">
<h2>Setup searx buildhost<a class="headerlink" href="#setup-searx-buildhost" title="Permalink to this heading"></a></h2>
<p>You can <strong>install the searx buildhost environment</strong> into one or all containers.
The installation procedure to set up a <a class="reference internal" href="../admin/buildhosts.html#buildhosts"><span class="std std-ref">build host</span></a> takes its
time. Installation in all containers will take more time (time for another cup
of coffee).:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>sudo -H ./utils/lxc.sh cmd -- ./utils/searx.sh install buildhost
</pre></div>
</div>
<p>To build (live) documentation inside a <a class="reference external" href="https://www.archlinux.org/">archlinux</a> container:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>sudo -H ./utils/lxc.sh cmd searx-archlinux make docs.clean docs.live
...
[I 200331 15:00:42 server:296] Serving on http://0.0.0.0:8080
</pre></div>
</div>
<p>To get IP of the container and the port number <em>live docs</em> is listening:</p>
<div class="highlight-none notranslate"><div class="highlight"><pre><span></span>$ sudo ./utils/lxc.sh show suite | grep docs.live
...
[searx-archlinux] INFO: (eth0) docs.live: http://n.n.n.12:8080/
</pre></div>
</div>
</section>
<section id="overview">
<span id="lxc-sh-help"></span><h2>Overview<a class="headerlink" href="#overview" title="Permalink to this heading"></a></h2>
<p>The <code class="docutils literal notranslate"><span class="pre">--help</span></code> output of the script is largely self-explanatory:</p>
<div class="highlight-text notranslate"><div class="highlight"><pre><span></span>usage::
lxc.sh build [containers|&lt;name&gt;]
lxc.sh copy [images]
lxc.sh remove [containers|&lt;name&gt;|images]
lxc.sh [start|stop] [containers|&lt;name&gt;]
lxc.sh show [images|suite|info|config [&lt;name&gt;]]
lxc.sh cmd [--|&lt;name&gt;] &#39;...&#39;
lxc.sh install [suite|base [&lt;name&gt;]]
build
:containers: build, launch all containers and &#39;install base&#39; packages
:&lt;name&gt;: build, launch container &lt;name&gt; and &#39;install base&#39; packages
copy:
:images: copy remote images of the suite into local storage
remove
:containers: delete all &#39;containers&#39; or only &lt;container-name&gt;
:images: delete local images of the suite
start/stop
:containers: start/stop all &#39;containers&#39; from the suite
:&lt;name&gt;: start/stop container &lt;name&gt; from suite
show
:info: show info of all (or &lt;name&gt;) containers from LXC suite
:config: show config of all (or &lt;name&gt;) containers from the LXC suite
:suite: show services of all (or &lt;name&gt;) containers from the LXC suite
:images: show information of local images
cmd
use single quotes to evaluate in container&#39;s bash, e.g.: &#39;echo $(hostname)&#39;
-- run command &#39;...&#39; in all containers of the LXC suite
:&lt;name&gt;: run command &#39;...&#39; in container &lt;name&gt;
install
:base: prepare LXC; install basic packages
:suite: install LXC searx suite into all (or &lt;name&gt;) containers
LXC suite: searx --&gt; http://fv-az504-947/searx
suite includes searx, morty &amp; filtron
suite images:
ubu1804 ubu2004 ubu2010 fedora33 archlinux centos7
suite containers:
searx-ubu1804 searx-ubu2004 searx-ubu2010 searx-fedora33 searx-archlinux
searx-centos7
</pre></div>
</div>
</section>
<section id="searx-suite">
<span id="lxc-searx-env"></span><h2>searx suite<a class="headerlink" href="#searx-suite" title="Permalink to this heading"></a></h2>
<div class="highlight-bash notranslate"><div class="highlight"><pre><span></span><span class="c1"># -*- coding: utf-8; mode: sh indent-tabs-mode: nil -*-</span>
<span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
<span class="c1"># shellcheck shell=bash</span>
<span class="c1"># This file is a setup of a LXC suite. It is sourced from different context, do</span>
<span class="c1"># not manipulate the environment directly, implement functions and manipulate</span>
<span class="c1"># environment only is subshells!</span>
<span class="c1"># ----------------------------------------------------------------------------</span>
<span class="c1"># config</span>
<span class="c1"># ----------------------------------------------------------------------------</span>
<span class="c1"># shellcheck disable=SC2034</span>
<span class="nv">LXC_SUITE_NAME</span><span class="o">=</span><span class="s2">&quot;searx&quot;</span>
lxc_set_suite_env<span class="o">()</span> <span class="o">{</span>
<span class="c1"># name of https://images.linuxcontainers.org</span>
<span class="nb">export</span> <span class="nv">LINUXCONTAINERS_ORG_NAME</span><span class="o">=</span><span class="s2">&quot;</span><span class="si">${</span><span class="nv">LINUXCONTAINERS_ORG_NAME</span><span class="k">:-</span><span class="nv">images</span><span class="si">}</span><span class="s2">&quot;</span>
<span class="nb">export</span> <span class="nv">LXC_HOST_PREFIX</span><span class="o">=</span><span class="s2">&quot;</span><span class="si">${</span><span class="nv">LXC_SUITE_NAME</span><span class="k">:-</span><span class="nv">searx</span><span class="si">}</span><span class="s2">&quot;</span>
<span class="nb">export</span> <span class="nv">LXC_SUITE</span><span class="o">=(</span>
<span class="c1"># to disable containers, comment out lines ..</span>
<span class="c1"># end of standard support see https://wiki.ubuntu.com/Releases</span>
<span class="s2">&quot;</span><span class="nv">$LINUXCONTAINERS_ORG_NAME</span><span class="s2">:ubuntu/18.04&quot;</span> <span class="s2">&quot;ubu1804&quot;</span> <span class="c1"># April 2023</span>
<span class="s2">&quot;</span><span class="nv">$LINUXCONTAINERS_ORG_NAME</span><span class="s2">:ubuntu/20.04&quot;</span> <span class="s2">&quot;ubu2004&quot;</span> <span class="c1"># April 2025</span>
<span class="s2">&quot;</span><span class="nv">$LINUXCONTAINERS_ORG_NAME</span><span class="s2">:ubuntu/20.10&quot;</span> <span class="s2">&quot;ubu2010&quot;</span> <span class="c1"># July 2021</span>
<span class="c1"># EOL see https://fedoraproject.org/wiki/Releases</span>
<span class="s2">&quot;</span><span class="nv">$LINUXCONTAINERS_ORG_NAME</span><span class="s2">:fedora/33&quot;</span> <span class="s2">&quot;fedora33&quot;</span>
<span class="c1"># rolling releases see https://www.archlinux.org/releng/releases/</span>
<span class="s2">&quot;</span><span class="nv">$LINUXCONTAINERS_ORG_NAME</span><span class="s2">:archlinux&quot;</span> <span class="s2">&quot;archlinux&quot;</span>
<span class="c1"># EOL 30 June 2024</span>
<span class="s2">&quot;</span><span class="nv">$LINUXCONTAINERS_ORG_NAME</span><span class="s2">:centos/7&quot;</span> <span class="s2">&quot;centos7&quot;</span>
<span class="o">)</span>
<span class="nv">PUBLIC_URL</span><span class="o">=</span><span class="s2">&quot;</span><span class="si">${</span><span class="nv">PUBLIC_URL</span><span class="k">:-</span><span class="nv">http</span><span class="p">://</span><span class="k">$(</span>uname -n<span class="k">)</span><span class="p">/searx</span><span class="si">}</span><span class="s2">&quot;</span>
<span class="k">if</span> in_container<span class="p">;</span> <span class="k">then</span>
<span class="c1"># container hostnames do not have a DNS entry: use primary IP!</span>
<span class="nv">PUBLIC_URL</span><span class="o">=</span><span class="s2">&quot;http://</span><span class="k">$(</span>primary_ip<span class="k">)</span><span class="s2">/searx&quot;</span>
<span class="c1"># make GUEST&#39;s services public to the HOST</span>
<span class="nv">FILTRON_API</span><span class="o">=</span><span class="s2">&quot;0.0.0.0:4005&quot;</span>
<span class="nv">FILTRON_LISTEN</span><span class="o">=</span><span class="s2">&quot;0.0.0.0:4004&quot;</span>
<span class="nv">MORTY_LISTEN</span><span class="o">=</span><span class="s2">&quot;0.0.0.0:3000&quot;</span>
<span class="c1"># export LXC specific environment</span>
<span class="nb">export</span> PUBLIC_URL FILTRON_API FILTRON_LISTEN MORTY_LISTEN
<span class="k">fi</span>
<span class="o">}</span>
lxc_suite_install_info<span class="o">()</span> <span class="o">{</span>
<span class="o">(</span>
lxc_set_suite_env
cat <span class="s">&lt;&lt;EOF</span>
<span class="s">LXC suite: ${LXC_SUITE_NAME} --&gt; ${PUBLIC_URL}</span>
<span class="s"> suite includes searx, morty &amp; filtron</span>
<span class="s">suite images:</span>
<span class="s">$(echo &quot; ${LOCAL_IMAGES[*]}&quot; | $FMT)</span>
<span class="s">suite containers:</span>
<span class="s">$(echo &quot; ${CONTAINERS[*]}&quot; | $FMT)</span>
<span class="s">EOF</span>
<span class="o">)</span>
<span class="o">}</span>
lxc_suite_install<span class="o">()</span> <span class="o">{</span>
<span class="o">(</span>
lxc_set_suite_env
<span class="nv">FORCE_TIMEOUT</span><span class="o">=</span><span class="m">0</span>
<span class="nb">export</span> FORCE_TIMEOUT
<span class="s2">&quot;</span><span class="si">${</span><span class="nv">LXC_REPO_ROOT</span><span class="si">}</span><span class="s2">/utils/searx.sh&quot;</span> install all
<span class="s2">&quot;</span><span class="si">${</span><span class="nv">LXC_REPO_ROOT</span><span class="si">}</span><span class="s2">/utils/morty.sh&quot;</span> install all
<span class="s2">&quot;</span><span class="si">${</span><span class="nv">LXC_REPO_ROOT</span><span class="si">}</span><span class="s2">/utils/filtron.sh&quot;</span> install all
rst_title <span class="s2">&quot;suite installation finished (</span><span class="k">$(</span>hostname<span class="k">)</span><span class="s2">)&quot;</span> part
lxc_suite_info
<span class="nb">echo</span>
<span class="o">)</span>
<span class="o">}</span>
lxc_suite_info<span class="o">()</span> <span class="o">{</span>
<span class="o">(</span>
lxc_set_suite_env
<span class="k">for</span> ip <span class="k">in</span> <span class="k">$(</span>global_IPs<span class="k">)</span> <span class="p">;</span> <span class="k">do</span>
<span class="k">if</span> <span class="o">[[</span> <span class="nv">$ip</span> <span class="o">=</span>~ .*:.* <span class="o">]]</span><span class="p">;</span> <span class="k">then</span>
info_msg <span class="s2">&quot;(</span><span class="si">${</span><span class="nv">ip</span><span class="p">%|*</span><span class="si">}</span><span class="s2">) IPv6: http://[</span><span class="si">${</span><span class="nv">ip</span><span class="p">#*|</span><span class="si">}</span><span class="s2">]&quot;</span>
<span class="k">else</span>
<span class="c1"># IPv4:</span>
<span class="c1"># shellcheck disable=SC2034,SC2031</span>
info_msg <span class="s2">&quot;(</span><span class="si">${</span><span class="nv">ip</span><span class="p">%|*</span><span class="si">}</span><span class="s2">) filtron: http://</span><span class="si">${</span><span class="nv">ip</span><span class="p">#*|</span><span class="si">}</span><span class="s2">:4004/ </span><span class="nv">$PUBLIC_URL</span><span class="s2">&quot;</span>
info_msg <span class="s2">&quot;(</span><span class="si">${</span><span class="nv">ip</span><span class="p">%|*</span><span class="si">}</span><span class="s2">) morty: http://</span><span class="si">${</span><span class="nv">ip</span><span class="p">#*|</span><span class="si">}</span><span class="s2">:3000/ </span><span class="nv">$PUBLIC_URL_MORTY</span><span class="s2">&quot;</span>
info_msg <span class="s2">&quot;(</span><span class="si">${</span><span class="nv">ip</span><span class="p">%|*</span><span class="si">}</span><span class="s2">) docs-live: http://</span><span class="si">${</span><span class="nv">ip</span><span class="p">#*|</span><span class="si">}</span><span class="s2">:8080/&quot;</span>
<span class="k">fi</span>
<span class="k">done</span>
<span class="o">)</span>
<span class="o">}</span>
</pre></div>
</div>
</section>
</section>
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