add trustStore and needClientAuth config to yaml (#834) (#1118)

* add ssl trustStore and mutualTLS config options to yaml (#834)

Signed-off-by: Gary Tully <gary.tully@gmail.com>

* Update SSLWithTrustStoreAndClientAuth.java

Updated copyright year

Signed-off-by: Doug Hoard <dhoard@users.noreply.github.com>

---------

Signed-off-by: Gary Tully <gary.tully@gmail.com>
Signed-off-by: Doug Hoard <dhoard@users.noreply.github.com>
Co-authored-by: Doug Hoard <dhoard@users.noreply.github.com>

collector/pom.xml

@@ -120,6 +120,8 @@
                 <version>3.13.0</version>
                 <configuration>
                     <compilerArgument>-Xbootclasspath/a:${env.JAVA_HOME}/lib/</compilerArgument>
+                   <source>8</source>
+                   <target>8</target>
                 </configuration>
             </plugin>
             <plugin>

docs/content/1.1.0/http-mode/ssl.md

@@ -26,6 +26,24 @@ httpServer:
 
 2. Create a keystore and add your certificate
 
+If you need to verify a clients certificate, you set mutualTLS and configure the trustStore parameters
+
+```yaml
+httpServer:
+  ssl:
+    mutualTLS: true
+    trustStore:
+      filename: ca.jks
+      type: JKS
+      password: changeit
+    keyStore:
+      filename: localhost.jks
+      password: changeit
+    certificate:
+      alias: localhost
+```
+
+
 ### Configuration (using System properties)
 
 1. Add configuration to your exporter YAML file