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    42. 

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    43. 

  43.         <div class="bodywrapper">
    44. 

  44.           <div class="body" role="main">
    45. 

  45.             
    46. 

  46.   <section id="utils-lxc-sh">
    47. 

  47. <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="Link to this heading">¶</a></h1>
    48. 

  48. <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
    49. 

  49. containers, what we call the: <em>lxc suite</em>.  The <a class="reference internal" href="#lxc-searxng-env"><span class="std std-ref">SearXNG suite config</span></a> is
    50. 

  50. 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
    51. 

  51. to care about</em>).</p>
    52. 

  52. <aside class="sidebar">
    53. 

  53. <p class="sidebar-title">further reading</p>
    54. 

  54. <ul class="simple">
    55. 

  55. <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>
    56. 

  56. <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>
    57. 

  57. <li><p><a class="reference external" href="https://uk.images.linuxcontainers.org/">LXC/LXD Image Server</a></p></li>
    58. 

  58. <li><p><a class="reference external" href="https://github.com/lxc/lxd">LXD&#64;github</a></p></li>
    59. 

  59. </ul>
    60. 

  60. </aside>
    61. 

  61. <nav class="contents local" id="contents">
    62. 

  62. <ul class="simple">
    63. 

  63. <li><p><a class="reference internal" href="#install-lxd" id="id5">Install LXD</a></p>
    64. 

  64. <ul>
    65. 

  65. <li><p><a class="reference internal" href="#internet-connectivity-docker" id="id6">Internet Connectivity &amp; Docker</a></p></li>
    66. 

  66. </ul>
    67. 

  67. </li>
    68. 

  68. <li><p><a class="reference internal" href="#searxng-lxc-suite" id="id7">SearXNG LXC suite</a></p>
    69. 

  69. <ul>
    70. 

  70. <li><p><a class="reference internal" href="#running-commands" id="id8">Running commands</a></p></li>
    71. 

  71. <li><p><a class="reference internal" href="#good-to-know" id="id9">Good to know</a></p></li>
    72. 

  72. <li><p><a class="reference internal" href="#install-suite" id="id10">Install suite</a></p></li>
    73. 

  73. <li><p><a class="reference internal" href="#clean-up" id="id11">Clean up</a></p></li>
    74. 

  74. </ul>
    75. 

  75. </li>
    76. 

  76. <li><p><a class="reference internal" href="#setup-searxng-buildhost" id="id12">Setup SearXNG buildhost</a></p></li>
    77. 

  77. <li><p><a class="reference internal" href="#command-help" id="id13">Command Help</a></p></li>
    78. 

  78. <li><p><a class="reference internal" href="#searxng-suite-config" id="id14">SearXNG suite config</a></p></li>
    79. 

  79. </ul>
    80. 

  80. </nav>
    81. 

  81. <section id="install-lxd">
    82. 

  82. <span id="lxd-install"></span><h2><a class="toc-backref" href="#id5" role="doc-backlink">Install LXD</a><a class="headerlink" href="#install-lxd" title="Link to this heading">¶</a></h2>
    83. 

  83. <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>
    84. 

  84. once:</p>
    85. 

  85. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ snap install lxd
    86. 

  86. $ lxd init --auto
    87. 

  87. </pre></div>
    88. 

  88. </div>
    89. 

  89. <p>To make use of the containers from the <em>SearXNG suite</em>, you have to build the
    90. 

  90. <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
    91. 

  91. take some time</strong>:</p>
    92. 

  92. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh build
    93. 

  93. </pre></div>
    94. 

  94. </div>
    95. 

  95. <aside class="sidebar">
    96. 

  96. <p class="sidebar-title">hint</p>
    97. 

  97. <p>If you have issues with the internet connectivity of your containers read
    98. 

  98. section <a class="reference internal" href="#internet-connectivity-docker"><span class="std std-ref">Internet Connectivity &amp; Docker</span></a>.</p>
    99. 

  99. </aside>
    100. 

  100. <p>A cup of coffee later, your LXC suite is build up and you can run whatever task
    101. 

  101. 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>.</p>
    102. 

  102. <section id="internet-connectivity-docker">
    103. 

  103. <span id="id1"></span><h3><a class="toc-backref" href="#id6" role="doc-backlink">Internet Connectivity &amp; Docker</a><a class="headerlink" href="#internet-connectivity-docker" title="Link to this heading">¶</a></h3>
    104. 

  104. <aside class="sidebar">
    105. 

  105. <p class="sidebar-title">further read</p>
    106. 

  106. <ul class="simple">
    107. 

  107. <li><p><a class="reference external" href="https://github.com/docker/for-linux/issues/103">Docker blocking network of existing LXC containers</a></p></li>
    108. 

  108. <li><p><a class="reference external" href="https://fralef.me/docker-and-iptables.html">Docker and IPtables (fralef.me)</a></p></li>
    109. 

  109. <li><p><a class="reference external" href="https://docs.docker.com/network/iptables/#docker-on-a-router/">Docker and iptables (docker.com)</a></p></li>
    110. 

  110. </ul>
    111. 

  111. </aside>
    112. 

  112. <p>There is a conflict in the <code class="docutils literal notranslate"><span class="pre">iptables</span></code> setup of Docker &amp; LXC.  If you have
    113. 

  113. docker installed, you may find that the internet connectivity of your LXD
    114. 

  114. containers no longer work.</p>
    115. 

  115. <p>Whenever docker is started (reboot) it sets the iptables policy for the
    116. 

  116. <code class="docutils literal notranslate"><span class="pre">FORWARD</span></code> chain to <code class="docutils literal notranslate"><span class="pre">DROP</span></code> <a class="reference external" href="https://docs.docker.com/network/iptables/#docker-on-a-router">[ref]</a>:</p>
    117. 

  117. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H iptables-save | grep FORWARD
    118. 

  118. :FORWARD ACCEPT [7048:7851230]
    119. 

  119. :FORWARD DROP [7048:7851230]
    120. 

  120. </pre></div>
    121. 

  121. </div>
    122. 

  122. <p>A handy solution of this problem might be to reset the policy for the
    123. 

  123. <code class="docutils literal notranslate"><span class="pre">FORWARD</span></code> chain after the network has been initialized.  For this create a
    124. 

  124. file in the <code class="docutils literal notranslate"><span class="pre">if-up</span></code> section of the network (<code class="docutils literal notranslate"><span class="pre">/etc/network/if-up.d/iptable</span></code>)
    125. 

  125. and insert the following lines:</p>
    126. 

  126. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="ch">#!/bin/sh</span>
    127. 

  127. <span class="n">iptables</span> <span class="o">-</span><span class="n">F</span> <span class="n">FORWARD</span>
    128. 

  128. <span class="n">iptables</span> <span class="o">-</span><span class="n">P</span> <span class="n">FORWARD</span> <span class="n">ACCEPT</span>
    129. 

  129. </pre></div>
    130. 

  130. </div>
    131. 

  131. <p>Don’t forget to set the execution bit:</p>
    132. 

  132. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">sudo</span> <span class="n">chmod</span> <span class="n">ugo</span><span class="o">+</span><span class="n">x</span> <span class="o">/</span><span class="n">etc</span><span class="o">/</span><span class="n">network</span><span class="o">/</span><span class="k">if</span><span class="o">-</span><span class="n">up</span><span class="o">.</span><span class="n">d</span><span class="o">/</span><span class="n">iptable</span>
    133. 

  133. </pre></div>
    134. 

  134. </div>
    135. 

  135. <p>Reboot your system and check the iptables rules:</p>
    136. 

  136. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H iptables-save | grep FORWARD
    137. 

  137. :FORWARD ACCEPT [7048:7851230]
    138. 

  138. :FORWARD ACCEPT [7048:7851230]
    139. 

  139. </pre></div>
    140. 

  140. </div>
    141. 

  141. </section>
    142. 

  142. </section>
    143. 

  143. <section id="searxng-lxc-suite">
    144. 

  144. <span id="id2"></span><h2><a class="toc-backref" href="#id7" role="doc-backlink">SearXNG LXC suite</a><a class="headerlink" href="#searxng-lxc-suite" title="Link to this heading">¶</a></h2>
    145. 

  145. <p>The intention of the <em>SearXNG LXC suite</em> is to build up a suite of containers
    146. 

  146. for development tasks or <a class="reference internal" href="#setup-searxng-buildhost"><span class="std std-ref">buildhosts</span></a> with a very
    147. 

  147. small set of simple commands.  At the end of the <code class="docutils literal notranslate"><span class="pre">--help</span></code> output the SearXNG
    148. 

  148. suite from the <a class="reference internal" href="#lxc-searxng-env"><span class="std std-ref">SearXNG suite config</span></a> is introduced:</p>
    149. 

  149. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh --help
    150. 

  150. ...
    151. 

  151. LXC suite: searxng
    152. 

  152.   Suite includes installation of SearXNG
    153. 

  153.   images:     ubu2004 ubu2204 fedora35 archlinux
    154. 

  154.   containers: searxng-ubu2004 searxng-ubu2204 searxng-fedora35 searxng-archlinux
    155. 

  155. </pre></div>
    156. 

  156. </div>
    157. 

  157. <p>As shown above there are images and containers build up on this images.  To show
    158. 

  158. more info about the containers in the <em>SearXNG LXC suite</em> call <code class="docutils literal notranslate"><span class="pre">show</span> <span class="pre">suite</span></code>.
    159. 

  159. If this is the first time you make use of the SearXNG LXC suite, no containers
    160. 

  160. are installed and the output is:</p>
    161. 

  161. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh show suite
    162. 

  162. 

  163. LXC suite (searxng-*)
    164. 

  164. =====================
    165. 

  165. 

  166. +------+-------+------+------+------+-----------+
    167. 

  167. | NAME | STATE | IPV4 | IPV6 | TYPE | SNAPSHOTS |
    168. 

  168. +------+-------+------+------+------+-----------+
    169. 

  169. 

  170. WARN:  container searxng-ubu2004 does not yet exists
    171. 

  171. WARN:  container searxng-ubu2204 does not yet exists
    172. 

  172. WARN:  container searxng-fedora35 does not yet exists
    173. 

  173. WARN:  container searxng-archlinux does not yet exists
    174. 

  174. </pre></div>
    175. 

  175. </div>
    176. 

  176. <p>If you do not want to run a command or a build in all containers, <strong>you can
    177. 

  177. build just one</strong>. Here by example in the container that is build upon the
    178. 

  178. <em>archlinux</em> image:</p>
    179. 

  179. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh build searxng-archlinux
    180. 

  180. $ sudo -H ./utils/lxc.sh cmd searxng-archlinux pwd
    181. 

  181. </pre></div>
    182. 

  182. </div>
    183. 

  183. <p>Otherwise, to apply a command to all containers you can use:</p>
    184. 

  184. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh build
    185. 

  185. $ sudo -H ./utils/lxc.sh cmd -- ls -la .
    186. 

  186. </pre></div>
    187. 

  187. </div>
    188. 

  188. <section id="running-commands">
    189. 

  189. <h3><a class="toc-backref" href="#id8" role="doc-backlink">Running commands</a><a class="headerlink" href="#running-commands" title="Link to this heading">¶</a></h3>
    190. 

  190. <p><strong>Inside containers, you can run scripts</strong> from the <a class="reference internal" href="index.html#toolboxing"><span class="std std-ref">DevOps tooling box</span></a> or run
    191. 

  191. what ever command you need.  By example, to start a bash use:</p>
    192. 

  192. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh cmd searxng-archlinux bash
    193. 

  193. INFO:  [searxng-archlinux] bash
    194. 

  194. [root@searxng-archlinux SearXNG]#
    195. 

  195. </pre></div>
    196. 

  196. </div>
    197. 

  197. </section>
    198. 

  198. <section id="good-to-know">
    199. 

  199. <span id="id3"></span><h3><a class="toc-backref" href="#id9" role="doc-backlink">Good to know</a><a class="headerlink" href="#good-to-know" title="Link to this heading">¶</a></h3>
    200. 

  200. <p>Each container shares the root folder of the repository and the command
    201. 

  201. <code class="docutils literal notranslate"><span class="pre">utils/lxc.sh</span> <span class="pre">cmd</span></code> <strong>handle relative path names transparent</strong>:</p>
    202. 

  202. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ pwd
    203. 

  203. /share/SearXNG
    204. 

  204. 

  205. $ sudo -H ./utils/lxc.sh cmd searxng-archlinux pwd
    206. 

  206. INFO:  [searxng-archlinux] pwd
    207. 

  207. /share/SearXNG
    208. 

  208. </pre></div>
    209. 

  209. </div>
    210. 

  210. <p>The path <code class="docutils literal notranslate"><span class="pre">/share/SearXNG</span></code> will be different on your HOST system.  The commands
    211. 

  211. in the container are executed by the <code class="docutils literal notranslate"><span class="pre">root</span></code> inside of the container.  Compare
    212. 

  212. output of:</p>
    213. 

  213. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ ls -li Makefile
    214. 

  214. 47712402 -rw-rw-r-- 1 markus markus 2923 Apr 19 13:52 Makefile
    215. 

  215. 

  216. $ sudo -H ./utils/lxc.sh cmd searxng-archlinux ls -li Makefile
    217. 

  217. INFO:  [searxng-archlinux] ls -li Makefile
    218. 

  218. 47712402 -rw-rw-r-- 1 root root 2923 Apr 19 11:52 Makefile
    219. 

  219. ...
    220. 

  220. </pre></div>
    221. 

  221. </div>
    222. 

  222. <p>Since the path <code class="docutils literal notranslate"><span class="pre">/share/SearXNG</span></code> of the HOST system is wrapped into the
    223. 

  223. container under the same name, the shown <code class="docutils literal notranslate"><span class="pre">Makefile</span></code> (inode <code class="docutils literal notranslate"><span class="pre">47712402</span></code>) in
    224. 

  224. the output is always the identical <code class="docutils literal notranslate"><span class="pre">/share/SearXNG/Makefile</span></code> from the HOST
    225. 

  225. system.  In the example shown above the owner of the path in the container is
    226. 

  226. the <code class="docutils literal notranslate"><span class="pre">root</span></code> user of the container (and the timezone in the container is
    227. 

  227. different to HOST system).</p>
    228. 

  228. </section>
    229. 

  229. <section id="install-suite">
    230. 

  230. <span id="lxc-sh-install-suite"></span><h3><a class="toc-backref" href="#id10" role="doc-backlink">Install suite</a><a class="headerlink" href="#install-suite" title="Link to this heading">¶</a></h3>
    231. 

  231. <aside class="sidebar">
    232. 

  232. <p class="sidebar-title">further read</p>
    233. 

  233. <ul class="simple">
    234. 

  234. <li><p><a class="reference internal" href="../dev/lxcdev.html#working-in-containers"><span class="std std-ref">In containers, work as usual</span></a></p></li>
    235. 

  235. <li><p><a class="reference internal" href="index.html#force-timeout"><span class="std std-ref">FORCE_TIMEOUT</span></a></p></li>
    236. 

  236. </ul>
    237. 

  237. </aside>
    238. 

  238. <p>To install the complete <a class="reference internal" href="#lxc-searxng-env"><span class="std std-ref">SearXNG suite</span></a> into <strong>all</strong> <a class="reference external" href="https://linuxcontainers.org/lxc/introduction/">LXC</a>
    239. 

  239. containers leave the container argument empty and run:</p>
    240. 

  240. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh build
    241. 

  241. $ sudo -H ./utils/lxc.sh install suite
    242. 

  242. </pre></div>
    243. 

  243. </div>
    244. 

  244. <p>To <em>build &amp; install</em> suite only in one container you can use by example:</p>
    245. 

  245. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh build searxng-archlinux
    246. 

  246. $ sudo -H ./utils/lxc.sh install suite searxng-archlinux
    247. 

  247. </pre></div>
    248. 

  248. </div>
    249. 

  249. <p>The command above installs a SearXNG suite (see <a class="reference internal" href="../admin/installation-scripts.html#installation-scripts"><span class="std std-ref">Installation Script</span></a>).
    250. 

  250. To <a class="reference internal" href="../admin/installation-nginx.html#installation-nginx"><span class="std std-ref">install a nginx</span></a> reverse proxy (or alternatively
    251. 

  251. use <a class="reference internal" href="../admin/installation-apache.html#installation-apache"><span class="std std-ref">apache</span></a>):</p>
    252. 

  252. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh cmd -- FORCE_TIMEOUT=0 ./utils/searxng.sh install nginx
    253. 

  253. </pre></div>
    254. 

  254. </div>
    255. 

  255. <p>Same operation just in one container of the suite:</p>
    256. 

  256. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh cmd searxng-archlinux FORCE_TIMEOUT=0 ./utils/searxng.sh install nginx
    257. 

  257. </pre></div>
    258. 

  258. </div>
    259. 

  259. <p>The <a class="reference internal" href="index.html#force-timeout"><span class="std std-ref">FORCE_TIMEOUT</span></a> environment is set to zero to run the
    260. 

  260. script without user interaction.</p>
    261. 

  261. <p>To get the IP (URL) of the SearXNG service in the containers use <code class="docutils literal notranslate"><span class="pre">show</span> <span class="pre">suite</span></code>
    262. 

  262. command.  To test instances from containers just open the URLs in your
    263. 

  263. WEB-Browser:</p>
    264. 

  264. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo ./utils/lxc.sh show suite | grep SEARXNG_URL
    265. 

  265. 

  266. [searxng-ubu2110]      SEARXNG_URL          : http://n.n.n.170/searxng
    267. 

  267. [searxng-ubu2004]      SEARXNG_URL          : http://n.n.n.160/searxng
    268. 

  268. [searxnggfedora35]     SEARXNG_URL          : http://n.n.n.150/searxng
    269. 

  269. [searxng-archlinux]    SEARXNG_URL          : http://n.n.n.140/searxng
    270. 

  270. </pre></div>
    271. 

  271. </div>
    272. 

  272. </section>
    273. 

  273. <section id="clean-up">
    274. 

  274. <h3><a class="toc-backref" href="#id11" role="doc-backlink">Clean up</a><a class="headerlink" href="#clean-up" title="Link to this heading">¶</a></h3>
    275. 

  275. <p>If there comes the time you want to <strong>get rid off all</strong> the containers and
    276. 

  276. <strong>clean up local images</strong> just type:</p>
    277. 

  277. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo -H ./utils/lxc.sh remove
    278. 

  278. $ sudo -H ./utils/lxc.sh remove images
    279. 

  279. </pre></div>
    280. 

  280. </div>
    281. 

  281. </section>
    282. 

  282. </section>
    283. 

  283. <section id="setup-searxng-buildhost">
    284. 

  284. <span id="id4"></span><h2><a class="toc-backref" href="#id12" role="doc-backlink">Setup SearXNG buildhost</a><a class="headerlink" href="#setup-searxng-buildhost" title="Link to this heading">¶</a></h2>
    285. 

  285. <p>You can <strong>install the SearXNG buildhost environment</strong> into one or all containers.
    286. 

  286. 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
    287. 

  287. time.  Installation in all containers will take more time (time for another cup
    288. 

  288. of coffee).</p>
    289. 

  289. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">sudo</span> <span class="o">-</span><span class="n">H</span> <span class="o">./</span><span class="n">utils</span><span class="o">/</span><span class="n">lxc</span><span class="o">.</span><span class="n">sh</span> <span class="n">cmd</span> <span class="o">--</span> <span class="o">./</span><span class="n">utils</span><span class="o">/</span><span class="n">searxng</span><span class="o">.</span><span class="n">sh</span> <span class="n">install</span> <span class="n">buildhost</span>
    290. 

  290. </pre></div>
    291. 

  291. </div>
    292. 

  292. <p>To build (live) documentation inside a <a class="reference external" href="https://www.archlinux.org/">archlinux</a> container:</p>
    293. 

  293. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">sudo</span> <span class="o">-</span><span class="n">H</span> <span class="o">./</span><span class="n">utils</span><span class="o">/</span><span class="n">lxc</span><span class="o">.</span><span class="n">sh</span> <span class="n">cmd</span> <span class="n">searxng</span><span class="o">-</span><span class="n">archlinux</span> <span class="n">make</span> <span class="n">docs</span><span class="o">.</span><span class="n">clean</span> <span class="n">docs</span><span class="o">.</span><span class="n">live</span>
    294. 

  294. <span class="o">...</span>
    295. 

  295. <span class="p">[</span><span class="n">I</span> <span class="mi">200331</span> <span class="mi">15</span><span class="p">:</span><span class="mi">00</span><span class="p">:</span><span class="mi">42</span> <span class="n">server</span><span class="p">:</span><span class="mi">296</span><span class="p">]</span> <span class="n">Serving</span> <span class="n">on</span> <span class="n">http</span><span class="p">:</span><span class="o">//</span><span class="mf">0.0.0.0</span><span class="p">:</span><span class="mi">8080</span>
    296. 

  296. </pre></div>
    297. 

  297. </div>
    298. 

  298. <p>To get IP of the container and the port number <em>live docs</em> is listening:</p>
    299. 

  299. <div class="highlight-default notranslate"><div class="highlight"><pre><span></span>$ sudo ./utils/lxc.sh show suite | grep docs.live
    300. 

  300. ...
    301. 

  301. [searxng-archlinux]  INFO:  (eth0) docs.live:  http://n.n.n.140:8080/
    302. 

  302. </pre></div>
    303. 

  303. </div>
    304. 

  304. </section>
    305. 

  305. <section id="command-help">
    306. 

  306. <span id="lxc-sh-help"></span><h2><a class="toc-backref" href="#id13" role="doc-backlink">Command Help</a><a class="headerlink" href="#command-help" title="Link to this heading">¶</a></h2>
    307. 

  307. <p>The <code class="docutils literal notranslate"><span class="pre">--help</span></code> output of the script is largely self-explanatory:</p>
    308. 

  308. <div class="highlight-text notranslate"><div class="highlight"><pre><span></span>usage::
    309. 

  309.   lxc.sh build        [containers|&lt;name&gt;]
    310. 

  310.   lxc.sh copy         [images]
    311. 

  311.   lxc.sh remove       [containers|&lt;name&gt;|images]
    312. 

  312.   lxc.sh [start|stop] [containers|&lt;name&gt;]
    313. 

  313.   lxc.sh show         [images|suite|info|config [&lt;name&gt;]]
    314. 

  314.   lxc.sh cmd          [--|&lt;name&gt;] &#39;...&#39;
    315. 

  315.   lxc.sh install      [suite|base [&lt;name&gt;]]
    316. 

  316. 

  317. build
    318. 

  318.   :containers:   build, launch all containers and &#39;install base&#39; packages
    319. 

  319.   :&lt;name&gt;:       build, launch container &lt;name&gt;  and &#39;install base&#39; packages
    320. 

  320. copy:
    321. 

  321.   :images:       copy remote images of the suite into local storage
    322. 

  322. remove
    323. 

  323.   :containers:   delete all &#39;containers&#39; or only &lt;container-name&gt;
    324. 

  324.   :images:       delete local images of the suite
    325. 

  325. start/stop
    326. 

  326.   :containers:   start/stop all &#39;containers&#39; from the suite
    327. 

  327.   :&lt;name&gt;:       start/stop container &lt;name&gt; from suite
    328. 

  328. show
    329. 

  329.   :info:         show info of all (or &lt;name&gt;) containers from LXC suite
    330. 

  330.   :config:       show config of all (or &lt;name&gt;) containers from the LXC suite
    331. 

  331.   :suite:        show services of all (or &lt;name&gt;) containers from the LXC suite
    332. 

  332.   :images:       show information of local images
    333. 

  333. cmd
    334. 

  334.   use single quotes to evaluate in container&#39;s bash, e.g.: &#39;echo $(hostname)&#39;
    335. 

  335.   --             run command &#39;...&#39; in all containers of the LXC suite
    336. 

  336.   :&lt;name&gt;:       run command &#39;...&#39; in container &lt;name&gt;
    337. 

  337. install
    338. 

  338.   :base:         prepare LXC; install basic packages
    339. 

  339.   :suite:        install LXC searxng suite into all (or &lt;name&gt;) containers
    340. 

  340. 

  341. LXC suite: searxng
    342. 

  342.   Suite includes installation of SearXNG
    343. 

  343.   images:     ubu2004 ubu2204 fedora35 archlinux
    344. 

  344.   containers: searxng-ubu2004 searxng-ubu2204 searxng-fedora35 searxng-archlinux
    345. 

  345. </pre></div>
    346. 

  346. </div>
    347. 

  347. </section>
    348. 

  348. <section id="searxng-suite-config">
    349. 

  349. <span id="lxc-searxng-env"></span><h2><a class="toc-backref" href="#id14" role="doc-backlink">SearXNG suite config</a><a class="headerlink" href="#searxng-suite-config" title="Link to this heading">¶</a></h2>
    350. 

  350. <p>The SearXNG suite is defined in the file <a class="extlink-origin reference external" href="https://github.com/searxng/searxng/blob/master/utils/lxc-searxng.env">git://utils/lxc-searxng.env</a>:</p>
    351. 

  351. <div class="highlight-bash notranslate"><div class="highlight"><pre><span></span><span class="c1"># -*- coding: utf-8; mode: sh indent-tabs-mode: nil -*-</span>
    352. 

  352. <span class="c1"># SPDX-License-Identifier: AGPL-3.0-or-later</span>
    353. 

  353. <span class="c1"># shellcheck shell=bash</span>
    354. 

  354. 

  355. <span class="c1"># This file is a setup of a LXC suite.  It is sourced from different context, do</span>
    356. 

  356. <span class="c1"># not manipulate the environment directly, implement functions and manipulate</span>
    357. 

  357. <span class="c1"># environment only in subshells.</span>
    358. 

  358. 

  359. lxc_set_suite_env<span class="o">()</span><span class="w"> </span><span class="o">{</span>
    360. 

  360. 

  361. <span class="w">    </span><span class="nb">export</span><span class="w"> </span><span class="nv">LXC_SUITE_NAME</span><span class="o">=</span><span class="s2">&quot;searxng&quot;</span>
    362. 

  362. 

  363. <span class="w">    </span><span class="c1"># name of https://images.linuxcontainers.org</span>
    364. 

  364. <span class="w">    </span><span class="nb">export</span><span class="w"> </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>
    365. 

  365. <span class="w">    </span><span class="nb">export</span><span class="w"> </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>
    366. 

  366. <span class="w">    </span><span class="nb">export</span><span class="w"> </span><span class="nv">LXC_SUITE</span><span class="o">=(</span>
    367. 

  367. 

  368. <span class="w">        </span><span class="c1"># end of standard support see https://wiki.ubuntu.com/Releases</span>
    369. 

  369. <span class="w">        </span><span class="s2">&quot;</span><span class="nv">$LINUXCONTAINERS_ORG_NAME</span><span class="s2">:ubuntu/20.04&quot;</span><span class="w">  </span><span class="s2">&quot;ubu2004&quot;</span><span class="w"> </span><span class="c1"># LTS EOSS April 2025</span>
    370. 

  370. <span class="w">        </span><span class="s2">&quot;</span><span class="nv">$LINUXCONTAINERS_ORG_NAME</span><span class="s2">:ubuntu/22.04&quot;</span><span class="w">  </span><span class="s2">&quot;ubu2204&quot;</span><span class="w"> </span><span class="c1"># LTS EOSS April 2027</span>
    371. 

  371. 

  372. <span class="w">        </span><span class="c1"># EOL see https://fedoraproject.org/wiki/Releases</span>
    373. 

  373. <span class="w">        </span><span class="s2">&quot;</span><span class="nv">$LINUXCONTAINERS_ORG_NAME</span><span class="s2">:fedora/35&quot;</span><span class="w">     </span><span class="s2">&quot;fedora35&quot;</span>
    374. 

  374. 

  375. <span class="w">        </span><span class="c1"># rolling releases see https://www.archlinux.org/releng/releases/</span>
    376. 

  376. <span class="w">        </span><span class="s2">&quot;</span><span class="nv">$LINUXCONTAINERS_ORG_NAME</span><span class="s2">:archlinux&quot;</span><span class="w">     </span><span class="s2">&quot;archlinux&quot;</span>
    377. 

  377. <span class="w">    </span><span class="o">)</span>
    378. 

  378. <span class="o">}</span>
    379. 

  379. 

  380. lxc_suite_install_info<span class="o">()</span><span class="w"> </span><span class="o">{</span>
    381. 

  381. <span class="w">    </span><span class="o">(</span>
    382. 

  382. <span class="w">        </span>lxc_set_suite_env
    383. 

  383. <span class="w">        </span>cat<span class="w"> </span><span class="s">&lt;&lt;EOF</span>
    384. 

  384. <span class="s">LXC suite: ${LXC_SUITE_NAME}</span>
    385. 

  385. <span class="s">  Suite includes installation of SearXNG</span>
    386. 

  386. <span class="s">  images:     ${LOCAL_IMAGES[*]}</span>
    387. 

  387. <span class="s">  containers: ${CONTAINERS[*]}</span>
    388. 

  388. <span class="s">EOF</span>
    389. 

  389. <span class="w">    </span><span class="o">)</span>
    390. 

  390. <span class="o">}</span>
    391. 

  391. 

  392. lxc_suite_install<span class="o">()</span><span class="w"> </span><span class="o">{</span>
    393. 

  393. <span class="w">    </span><span class="o">(</span>
    394. 

  394. <span class="w">        </span>lxc_set_suite_env
    395. 

  395. <span class="w">        </span><span class="nv">FORCE_TIMEOUT</span><span class="o">=</span><span class="m">0</span><span class="w"> </span><span class="s2">&quot;</span><span class="si">${</span><span class="nv">LXC_REPO_ROOT</span><span class="si">}</span><span class="s2">/utils/searxng.sh&quot;</span><span class="w"> </span>install<span class="w"> </span>all
    396. 

  396. <span class="w">        </span>rst_title<span class="w"> </span><span class="s2">&quot;Suite installation finished (</span><span class="k">$(</span>hostname<span class="k">)</span><span class="s2">)&quot;</span><span class="w"> </span>part
    397. 

  397. <span class="w">        </span><span class="k">if</span><span class="w"> </span>ask_yn<span class="w"> </span><span class="s2">&quot;Developer install? (wraps source from HOST into the running instance)&quot;</span><span class="w"> </span>Yn<span class="p">;</span><span class="w"> </span><span class="k">then</span>
    398. 

  398. <span class="w">            </span><span class="s2">&quot;</span><span class="si">${</span><span class="nv">LXC_REPO_ROOT</span><span class="si">}</span><span class="s2">/utils/searxng.sh&quot;</span><span class="w"> </span>searxng.install.link_src<span class="w"> </span><span class="s2">&quot;</span><span class="k">$(</span><span class="nb">pwd</span><span class="k">)</span><span class="s2">&quot;</span>
    399. 

  399. <span class="w">        </span><span class="k">fi</span>
    400. 

  400. <span class="w">        </span>lxc_suite_info
    401. 

  401. <span class="w">        </span><span class="nb">echo</span>
    402. 

  402. <span class="w">    </span><span class="o">)</span>
    403. 

  403. <span class="o">}</span>
    404. 

  404. 

  405. lxc_suite_info<span class="o">()</span><span class="w"> </span><span class="o">{</span>
    406. 

  406. <span class="w">    </span><span class="o">(</span>
    407. 

  407. <span class="w">        </span>lxc_set_suite_env
    408. 

  408. <span class="w">        </span><span class="k">for</span><span class="w"> </span>ip<span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="k">$(</span>global_IPs<span class="k">)</span><span class="w"> </span><span class="p">;</span><span class="w"> </span><span class="k">do</span>
    409. 

  409. <span class="w">            </span><span class="k">if</span><span class="w"> </span><span class="o">[[</span><span class="w"> </span><span class="nv">$ip</span><span class="w"> </span><span class="o">=</span>~<span class="w"> </span>.*:.*<span class="w"> </span><span class="o">]]</span><span class="p">;</span><span class="w"> </span><span class="k">then</span>
    410. 

  410. <span class="w">                </span>info_msg<span class="w"> </span><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>
    411. 

  411. <span class="w">            </span><span class="k">else</span>
    412. 

  412. <span class="w">                </span><span class="c1"># IPv4:</span>
    413. 

  413. <span class="w">                </span><span class="c1"># shellcheck disable=SC2034,SC2031</span>
    414. 

  414. <span class="w">                </span>info_msg<span class="w"> </span><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>
    415. 

  415. <span class="w">            </span><span class="k">fi</span>
    416. 

  416. <span class="w">        </span><span class="k">done</span>
    417. 

  417. <span class="w">        </span><span class="s2">&quot;</span><span class="si">${</span><span class="nv">LXC_REPO_ROOT</span><span class="si">}</span><span class="s2">/utils/searxng.sh&quot;</span><span class="w"> </span>searxng.instance.env
    418. 

  418. <span class="w">    </span><span class="o">)</span>
    419. 

  419. <span class="o">}</span>
    420. 

  420. </pre></div>
    421. 

  421. </div>
    422. 

  422. </section>
    423. 

  423. </section>
    424. 

  424. 

  425. 

  426.             <div class="clearer"></div>
    427. 

  427.           </div>
    428. 

  428.         </div>
    429. 

  429.       </div>
    430. 

  430.   <span id="sidebar-top"></span>
    431. 

  431.       <div class="sphinxsidebar" role="navigation" aria-label="Main">
    432. 

  432.         <div class="sphinxsidebarwrapper">
    433. 

  433.   
    434. 

  434.     
    435. 

  435.             <p class="logo"><a href="../index.html">
    436. 

  436.               <img class="logo" src="../_static/searxng-wordmark.svg" alt="Logo of SearXNG"/>
    437. 

  437.             </a></p>
    438. 

  438.   
    439. 

  439. 

  440. <h3><a href="../index.html">Table of Contents</a></h3>
    441. 

  441. <ul class="current">
    442. 

  442. <li class="toctree-l1"><a class="reference internal" href="../user/index.html">User information</a></li>
    443. 

  443. <li class="toctree-l1"><a class="reference internal" href="../own-instance.html">Why use a private instance?</a></li>
    444. 

  444. <li class="toctree-l1"><a class="reference internal" href="../admin/index.html">Administrator documentation</a></li>
    445. 

  445. <li class="toctree-l1"><a class="reference internal" href="../dev/index.html">Developer documentation</a></li>
    446. 

  446. <li class="toctree-l1 current"><a class="reference internal" href="index.html">DevOps tooling box</a><ul class="current">
    447. 

  447. <li class="toctree-l2"><a class="reference internal" href="searxng.sh.html"><code class="docutils literal notranslate"><span class="pre">utils/searxng.sh</span></code></a></li>
    448. 

  448. <li class="toctree-l2 current"><a class="current reference internal" href="#"><code class="docutils literal notranslate"><span class="pre">utils/lxc.sh</span></code></a><ul>
    449. 

  449. <li class="toctree-l3"><a class="reference internal" href="#install-lxd">Install LXD</a><ul>
    450. 

  450. <li class="toctree-l4"><a class="reference internal" href="#internet-connectivity-docker">Internet Connectivity &amp; Docker</a></li>
    451. 

  451. </ul>
    452. 

  452. </li>
    453. 

  453. <li class="toctree-l3"><a class="reference internal" href="#searxng-lxc-suite">SearXNG LXC suite</a><ul>
    454. 

  454. <li class="toctree-l4"><a class="reference internal" href="#running-commands">Running commands</a></li>
    455. 

  455. <li class="toctree-l4"><a class="reference internal" href="#good-to-know">Good to know</a></li>
    456. 

  456. <li class="toctree-l4"><a class="reference internal" href="#install-suite">Install suite</a></li>
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