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new 71fc7bf Add file system structure notes
71fc7bf is described below
commit 71fc7bfbe489ceaac6f27753269aae5d2f706571
Author: Mark Thomas <ma...@apache.org>
AuthorDate: Fri Feb 23 10:31:58 2018 +0000
Add file system structure notes
---
modules/background-01.html | 133 ++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 132 insertions(+), 1 deletion(-)
diff --git a/modules/background-01.html b/modules/background-01.html
index 44d00bf..5fd2417 100644
--- a/modules/background-01.html
+++ b/modules/background-01.html
@@ -29,7 +29,7 @@
Very old versions of Tomcat (10+ years ago) required the JDK for JSPs. All
current versions of
Tomcat include the Eclipse compilers.
<br>
- off-by-one pattern broken by Java's switch sto a 6-monthly release cycle.
+ off-by-one pattern broken by Java's switch to a 6-monthly release cycle.
<br>
Tomcat 9 and 8.5 require Java 9 for pure Java HTTP/2 support
<br>
@@ -67,6 +67,125 @@
</section>
<section>
<h3>File structure</h3>
+ <p>bin/</p>
+ <ul>
+ <li>Start-up scripts</li>
+ <li>Utility scripts</li>
+ <li>Bootstrap classes</li>
+ <li>setenv.sh / setenv.bat</li>
+ <li>JAVA_OPTS vs CATALINA_OPTS</li>
+ </ul>
+ <aside class="notes">
+ Utility scripts include creating digests, install Windows service and a
configuration check
+ </aside>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>conf/server.xml</p>
+ <p>Main configuration file</p>
+ <p>TODO - diagram of architecture</p>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>conf/web.xml</p>
+ <p>Global defaults for all web applications</p>
+ <p>Syntax defined by Servlet specification</p>
+ <p>Defines Default and JSP servlets</p>
+ <p>Can be over-ridden by web application</p>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>conf/context.xml</p>
+ <p>Global defaults for all web applications</p>
+ <p>Tomcat specific</p>
+ <p>Can be over-ridden by web application</p>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>conf/Catalina/localhost/*.xml</p>
+ <p>conf/<engine-name>/<host-name>/*.xml
+ <p>Web-application specific configuration</p>
+ <p>Always over-rides context.xml in the web application</p>
+ <p>Name sets context path</p>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>conf/logging.properties</p>
+ <p>Logging configuration</p>
+ <p>Based on java.util.logging</p>
+ <p>Extended to be class loader aware</p>
+ <aside class="notes">
+ Explain issue of loggers with same name in different web applications
+ </aside>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>conf/tomcat-users.xml</p>
+ <p>Configures users for default Realm</p>
+ <p>Only read at Tomcat start</p>
+ <p>XML schema file provided</p>
+ <aside class="notes">
+ Not ideal choice for production. Can use it with JMX.
+ </aside>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>conf/jaspic-providers.xml</p>
+ <p>Java Authentication Service Provider Interface for Containers</p>
+ <p>Plug-in authentication modules</p>
+ <p>Google OAuth most likely use</p>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>conf/catalina.properties</p>
+ <p>Sets system properties</p>
+ <p>Various Tomcat configuration options set at JVM level</p>
+ <p>Often used to change default globally but value can still be changed per
web application</p>
+ <aside class="notes">
+ Prefer not to configure at JVM level if at all possible.
+ </aside>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>conf/catalina.policy</p>
+ <p>Used when running under a security manager</p>
+ <p>Only lightly tested</p>
+ <p>Few web applications work under a security manager out of the box</p>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>lib/</p>
+ <p>JAR files required by Tomcat</p>
+ <p>JARs added here will be visible to all web applications</p>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>logs/</p>
+ <p>Roll over daily except catalina.out</p>
+ <p>catalina.out - redirected console output</p>
+ <p>catalina.log - root logger (copied to console)</p>
+ <p>localhost_access_log - access log for default host</p>
+ <p>localhost.log - host log</p>
+ <p>manager.log, host-manager.log - web application log</p>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>temp/</p>
+ <p>Temporary file location used by the JVM</p>
+ <p>java.io.tmpdir</p>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>webapps/</p>
+ <p>Location of web applications</p>
+ <p>WARs or directories</p>
+ <p>Deployed automatically by default</p>
+</section>
+<section>
+ <h3>File structure</h3>
+ <p>work/</p>
+ <p>JSP compilation</p>
+ <p>Session serialization</p>
</section>
<section>
<h3>Running as a Service</h3>
@@ -92,6 +211,18 @@
<p>Installing with the Tomcat Installer for Windows</p>
</section>
<section>
+ <h3>Where did the files go?</h3>
+ <p>Linux distributions have 'views' on file locations</p>
+ <p>Tomcat files not all in one location</p>
+ <p>Often use multiple packages</p>
+ <p>E.g.: <a href="https://packages.ubuntu.com/xenial/tomcat8";>Ubuntu 16.04
LTS</a> and Tomcat
+ 8.0.x</p>
+ <p>Tend to pick a version and then back-port fixes</p>
+ <aside class="notes">
+ Follow the Ubuntu link (if connectivity allows) and have a look around.
+ </aside>
+</section>
+<section>
<h3>Demonstration</h3>
<p>Installing from a Linux package</p>
</section>
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