Unable to access Kafdrop with TLS auth

[Kinza-Raza]

Hello, I used the following docker-compose.yaml to connect to an existing Kafka cluster on cloud

---
version: '2'
services:
  kafdrop:
    image: obsidiandynamics/kafdrop
    restart: "no"
    ports:
      - "9000:9000"
    environment:
      KAFKA_BROKERCONNECT: "<redacted>:<redacted>"
      KAFKA_TRUSTSTORE_FILE: /dev_kafka_truststore.jks
      KAFKA_KEYSTORE_FILE: /dev_kafka_keystore.jks
      SERVER_SERVLET_CONTEXTPATH: "/"
      JVM_OPTS: "-Xms32M -Xmx64M"
  
    volumes:
      - ./dev/kafka/client.truststore.jks:/dev_kafka_truststore.jks
      - ./dev/kafka/client.keystore.p12:/dev_kafka_keystore.jks

The container starts running but I get the following stack trace when I access localhost:9000

FreeMarker template error (DEBUG mode; use RETHROW in production!): The following has evaluated to null or missing: ==> error.error [in template "error.ftlh" at line 3, column 22] ---- Tip: It's the step after the last dot that caused this error, not those before it. ---- Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: #macro header title [in template "lib/template.ftlh" in macro "header" at line 17, column 1] - Reached through: @template.header "${error.error}" [in template "error.ftlh" at line 3, column 1] ---- Java stack trace (for programmers): ---- freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...] at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134) at freemarker.core.EvalUtil.coerceModelToTextualCommon(EvalUtil.java:486) at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:406) at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:375) at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:104) at freemarker.core.StringLiteral._eval(StringLiteral.java:103) at freemarker.core.Expression.eval(Expression.java:101) at freemarker.core.Environment.setMacroContextLocalsFromArguments(Environment.java:1059) at freemarker.core.Environment.invokeMacroOrFunctionCommonPart(Environment.java:868) at freemarker.core.Environment.invokeMacro(Environment.java:822) at freemarker.core.UnifiedCall.accept(UnifiedCall.java:83) at freemarker.core.Environment.visit(Environment.java:344) at freemarker.core.Environment.visit(Environment.java:350) at freemarker.core.Environment.process(Environment.java:323) at freemarker.template.Template.process(Template.java:383) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.processTemplate(FreeMarkerView.java:332) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.doRender(FreeMarkerView.java:266) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.renderMergedTemplateModel(FreeMarkerView.java:220) at org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:181) at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:314) at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1431) at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1167) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1106) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903) at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:527) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:614) at io.undertow.servlet.handlers.ServletHandler.handleRequest(ServletHandler.java:74) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:129) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:67) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:67) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:101) at io.undertow.servlet.core.ManagedFilter.doFilter(ManagedFilter.java:67) at io.undertow.servlet.handlers.FilterHandler$FilterChainImpl.doFilter(FilterHandler.java:131) at io.undertow.servlet.handlers.FilterHandler.handleRequest(FilterHandler.java:84) at io.undertow.servlet.handlers.security.ServletSecurityRoleHandler.handleRequest(ServletSecurityRoleHandler.java:62) at io.undertow.servlet.handlers.ServletChain$1.handleRequest(ServletChain.java:68) at io.undertow.servlet.handlers.ServletDispatchingHandler.handleRequest(ServletDispatchingHandler.java:36) at io.undertow.servlet.handlers.RedirectDirHandler.handleRequest(RedirectDirHandler.java:68) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.server.handlers.PredicateHandler.handleRequest(PredicateHandler.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:258) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchToPath(ServletInitialHandler.java:183) at io.undertow.servlet.spec.RequestDispatcherImpl.error(RequestDispatcherImpl.java:414) at io.undertow.servlet.spec.RequestDispatcherImpl.error(RequestDispatcherImpl.java:372) at io.undertow.servlet.handlers.ServletInitialHandler.handleFirstRequest(ServletInitialHandler.java:315) at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:135) at io.undertow.servlet.handlers.ServletInitialHandler$2.call(ServletInitialHandler.java:132) at io.undertow.servlet.core.ServletRequestContextThreadSetupAction$1.call(ServletRequestContextThreadSetupAction.java:48) at io.undertow.servlet.core.ContextClassLoaderSetupAction$1.call(ContextClassLoaderSetupAction.java:43) at io.undertow.servlet.handlers.ServletInitialHandler.dispatchRequest(ServletInitialHandler.java:256) at io.undertow.servlet.handlers.ServletInitialHandler$1.handleRequest(ServletInitialHandler.java:101) at io.undertow.server.Connectors.executeRootHandler(Connectors.java:393) at io.undertow.server.HttpServerExchange$1.run(HttpServerExchange.java:859) at org.jboss.threads.ContextHandler$1.runWith(ContextHandler.java:18) at org.jboss.threads.EnhancedQueueExecutor$Task.run(EnhancedQueueExecutor.java:2513) at org.jboss.threads.EnhancedQueueExecutor$ThreadBody.run(EnhancedQueueExecutor.java:1512) at org.xnio.XnioWorker$WorkerThreadFactory$1$1.run(XnioWorker.java:1282) at java.base/java.lang.Thread.run(Thread.java:840)

I ran docker inspect and also checked the logs in the container and nothing suspicious shows up, cluster connectivity and certificates are also okay.