X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/db31bedb109a4d918830a910654685a9f591cf28..HEAD:/doc/install/config.html.textile.liquid

diff --git a/doc/install/config.html.textile.liquid b/doc/install/config.html.textile.liquid
index 4527470ac2..28ddf7eff7 100644
--- a/doc/install/config.html.textile.liquid
+++ b/doc/install/config.html.textile.liquid
@@ -9,13 +9,13 @@ Copyright (C) The Arvados Authors. All rights reserved.
 SPDX-License-Identifier: CC-BY-SA-3.0
 {% endcomment %}
 
-h2. Arados /etc/arvados/config.yml
+h2. Arvados /etc/arvados/config.yml
 
-The configuration file is normally found at @/etc/arvados/config.yml@ and will be referred to as just @config.yml@ in this guide.  This configuration file should be kept in sync across every node in the cluster, except compute nodes (which usually do not require config.yml).  We recommend using a devops configuration management tool such as "Puppet":https://puppet.com/open-source/ to synchronize the config file.
+The configuration file is normally found at @/etc/arvados/config.yml@ and will be referred to as just @config.yml@ in this guide.  This configuration file must be kept in sync across every service node in the cluster, but not shell and compute nodes (which do not require config.yml).
 
 h3. Syntax
 
-The configuration file is in "YAML":https://yaml.org/ format.  This is a block syntax where indentation is significant (similar to Python).  By convention we use two space indent.  The first line of the file is always "Clusters:", underneath it at the first indent level is the Cluster ID.  All the actual cluster configuration come under the Cluster ID.  This means all configuration parameters are indented by at least two levels (four spaces).  Comments start with @#@ .
+The configuration file is in "YAML":https://yaml.org/ format.  This is a block syntax where indentation is significant (similar to Python).  By convention we use two space indent.  The first line of the file is always "Clusters:", underneath it at the first indent level is the Cluster ID.  All the actual cluster configuration follows under the Cluster ID.  This means all configuration parameters are indented by at least two levels (four spaces).  Comments start with @#@ .
 
 We recommend a YAML-syntax plugin for your favorite text editor, such as @yaml-mode@ (Emacs) or @yaml-vim@.
 
@@ -38,15 +38,31 @@ Size suffixes are K=10 ^3^, Ki=2 ^10^ , M=10 ^6^, Mi=2 ^20^, G=10 ^9^, Gi=2 ^30^
 
 h3(#empty). Create empty configuration file
 
+Change @webserver-user@ to the user that runs your web server process.  This is @www-data@ on Debian-based systems, and @nginx@ on Red Hat-based systems.
+
 <notextile>
 <pre><code># <span class="userinput">export ClusterID=xxxxx</span>
+# <span class="userinput">umask 027</span>
 # <span class="userinput">mkdir -p /etc/arvados</span>
 # <span class="userinput">cat &gt; /etc/arvados/config.yml &lt;&lt;EOF
 Clusters:
   ${ClusterID}:
-EOF</span></code></pre>
+EOF</span>
+# <span class="userinput">chgrp webserver-user /etc/arvados /etc/arvados/config.yml</span>
+</span></code></pre>
 </notextile>
 
 h2. Nginx configuration
 
 This guide will also cover setting up "Nginx":https://www.nginx.com/ as a reverse proxy for Arvados services.  Nginx performs two main functions: TLS termination and virtual host routing.  The virtual host configuration for each component will go in its own file in @/etc/nginx/conf.d/@.
+
+h2. Synchronizing config file
+
+The Arvados configuration file must be kept in sync across every service node in the cluster.  We strongly recommend using a devops configuration management tool such as "Puppet":https://puppet.com/open-source/ to synchronize the config file.  Alternately, something like the following script to securely copy the configuration file to each node may be helpful.  Replace the @ssh@ targets with your nodes.
+
+<notextile>
+<pre><code>#!/bin/sh
+sudo cat /etc/arvados/config.yml | ssh <span class="userinput">10.0.0.2</span> sudo sh -c "'cat > /etc/arvados/config.yml'"
+sudo cat /etc/arvados/config.yml | ssh <span class="userinput">10.0.0.3</span> sudo sh -c "'cat > /etc/arvados/config.yml'"
+</code></pre>
+</notextile>