diff --git a/docker/Dockerfile.soda.temurin-jammy b/docker/Dockerfile.soda.temurin-jammy
index add2aa41a922fdb62242619f4229e7a1905d8bf6..21ccb03558fe76b4a2eeed28f79bbd9d09b7a353 100644
--- a/docker/Dockerfile.soda.temurin-jammy
+++ b/docker/Dockerfile.soda.temurin-jammy
@@ -1,4 +1,12 @@
 FROM tomcat:9-jre17-temurin-jammy
+# From: https://hub.docker.com/_/tomcat/
+# The default Tomcat environment in the image is:
+# CATALINA_BASE:   /usr/local/tomcat
+# CATALINA_HOME:   /usr/local/tomcat
+# CATALINA_TMPDIR: /usr/local/tomcat/temp
+# JRE_HOME:        /usr
+# CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
+# The configuration files are available in /usr/local/tomcat/conf/.
 
 ENV CATALINA_BASE=/usr/local/tomcat
 ENV CATALINA_HOME=/usr/local/tomcat
diff --git a/docker/example-security/iamtoken/keystore.pwd b/docker/example-security/iamtoken/keystore.pwd
new file mode 100644
index 0000000000000000000000000000000000000000..b0157598df54fadf79ae738bb1d5882b4bbaf775
--- /dev/null
+++ b/docker/example-security/iamtoken/keystore.pwd
@@ -0,0 +1 @@
+tomcatskassl