[BUG] index template matching not found when using BootstrapMethod.Failure Serilog

[Baklap4]

ECS integration/library project(s) (e.g. Elastic.CommonSchema.Serilog):
Elastic.Serilog.Sinks -> 8.6.0
Elastic.CommonSchema.Serilog -> 8.6.0
ECS schema version (e.g. 1.4.0):

ECS .NET assembly version (e.g. 1.4.2):

Elasticsearch version (if applicable):
8.2.2
.NET framework / OS:
net7
Description of the problem, including expected versus actual behavior:
Using this and setting a custom DataStreamName results into not creating the index lifecycle policy

var elasticOptions = new ElasticsearchSinkOptions(client.Transport)
                {
                    BootstrapMethod = BootstrapMethod.Failure,
                    DataStream = new Elastic.Ingest.Elasticsearch.DataStreams.DataStreamName("logs", "cmsapi", "development"),
                    TextFormatting = new EcsTextFormatterConfiguration
                    {
                        MapCustom = (e, _) => e
                    },
                    ConfigureChannel = channelOpts =>
                    {
                        channelOpts.BufferOptions = new BufferOptions { ExportMaxConcurrency = 10 };
                    }
                };
config.Enrich.WithEcsHttpContext(httpAccessor)
                      .WriteTo.Console(new EcsTextFormatter())
                      .WriteTo.Elasticsearch(elasticOptions);

exception

{
  "error" : {
    "root_cause" : [
      {
        "type" : "resource_not_found_exception",
        "reason" : "index template matching [logs-cmsapi-8.6.0] not found",
        "stack_trace" : "org.elasticsearch.ResourceNotFoundException: index template matching [logs-cmsapi-8.6.0] not found\n\tat org.elasticsearch.action.admin.indices.template.get.TransportGetComposableIndexTemplateAction.masterOperation(TransportGetComposableIndexTemplateAction.java:86)\n\tat org.elasticsearch.action.admin.indices.template.get.TransportGetComposableIndexTemplateAction.masterOperation(TransportGetComposableIndexTemplateAction.java:30)\n\tat org.elasticsearch.action.support.master.TransportMasterNodeAction.executeMasterOperation(TransportMasterNodeAction.java:121)\n\tat org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction.lambda$doStart$3(TransportMasterNodeAction.java:215)\n\tat org.elasticsearch.action.ActionRunnable$2.doRun(ActionRunnable.java:62)\n\tat org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:26)\n\tat org.elasticsearch.common.util.concurrent.EsExecutors$DirectExecutorService.execute(EsExecutors.java:223)\n\tat org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction.doStart(TransportMasterNodeAction.java:215)\n\tat org.elasticsearch.action.support.master.TransportMasterNodeAction.doExecute(TransportMasterNodeAction.java:152)\n\tat org.elasticsearch.action.support.master.TransportMasterNodeAction.doExecute(TransportMasterNodeAction.java:52)\n\tat org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:79)\n\tat org.elasticsearch.action.support.ActionFilter$Simple.apply(ActionFilter.java:53)\n\tat org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:77)\n\tat org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.lambda$applyInternal$3(SecurityActionFilter.java:163)\n\tat org.elasticsearch.action.ActionListener$DelegatingFailureActionListener.onResponse(ActionListener.java:245)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.lambda$authorizeAction$4(AuthorizationService.java:396)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService$AuthorizationResultListener.onResponse(AuthorizationService.java:965)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService$AuthorizationResultListener.onResponse(AuthorizationService.java:929)\n\tat org.elasticsearch.action.support.ContextPreservingActionListener.onResponse(ContextPreservingActionListener.java:31)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.lambda$authorizeAction$5(AuthorizationService.java:410)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authz.RBACEngine.authorizeClusterAction(RBACEngine.java:165)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.authorizeAction(AuthorizationService.java:400)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.maybeAuthorizeRunAs(AuthorizationService.java:376)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.lambda$authorize$1(AuthorizationService.java:261)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.action.support.ContextPreservingActionListener.onResponse(ContextPreservingActionListener.java:31)\n\tat org.elasticsearch.xpack.security.authz.RBACEngine.lambda$resolveAuthorizationInfo$0(RBACEngine.java:138)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authz.store.CompositeRolesStore.lambda$getRoles$1(CompositeRolesStore.java:184)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.core.security.authz.store.RoleReferenceIntersection.lambda$buildRole$0(RoleReferenceIntersection.java:47)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.action.support.GroupedActionListener.onResponse(GroupedActionListener.java:55)\n\tat org.elasticsearch.xpack.security.authz.store.CompositeRolesStore.buildRoleFromRoleReference(CompositeRolesStore.java:232)\n\tat org.elasticsearch.xpack.core.security.authz.store.RoleReferenceIntersection.lambda$buildRole$1(RoleReferenceIntersection.java:50)\n\tat java.base/java.lang.Iterable.forEach(Iterable.java:75)\n\tat org.elasticsearch.xpack.core.security.authz.store.RoleReferenceIntersection.buildRole(RoleReferenceIntersection.java:50)\n\tat org.elasticsearch.xpack.security.authz.store.CompositeRolesStore.getRole(CompositeRolesStore.java:199)\n\tat org.elasticsearch.xpack.security.authz.store.CompositeRolesStore.getRoles(CompositeRolesStore.java:174)\n\tat org.elasticsearch.xpack.security.authz.RBACEngine.resolveAuthorizationInfo(RBACEngine.java:135)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.authorize(AuthorizationService.java:263)\n\tat org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.lambda$applyInternal$4(SecurityActionFilter.java:159)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.action.ActionListener$MappedActionListener.onResponse(ActionListener.java:127)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.authenticateAsync(AuthenticatorChain.java:93)\n\tat org.elasticsearch.xpack.security.authc.AuthenticationService.authenticate(AuthenticationService.java:171)\n\tat org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.applyInternal(SecurityActionFilter.java:155)\n\tat org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.apply(SecurityActionFilter.java:114)\n\tat org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:77)\n\tat org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:54)\n\tat org.elasticsearch.tasks.TaskManager.registerAndExecute(TaskManager.java:170)\n\tat org.elasticsearch.client.internal.node.NodeClient.executeLocally(NodeClient.java:113)\n\tat org.elasticsearch.client.internal.node.NodeClient.doExecute(NodeClient.java:91)\n\tat org.elasticsearch.client.internal.support.AbstractClient.execute(AbstractClient.java:380)\n\tat org.elasticsearch.rest.action.admin.indices.RestGetComposableIndexTemplateAction.lambda$prepareRequest$0(RestGetComposableIndexTemplateAction.java:53)\n\tat org.elasticsearch.rest.BaseRestHandler.handleRequest(BaseRestHandler.java:103)\n\tat org.elasticsearch.xpack.security.rest.SecurityRestFilter.lambda$handleRequest$0(SecurityRestFilter.java:112)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authc.support.SecondaryAuthenticator.lambda$authenticateAndAttachToContext$2(SecondaryAuthenticator.java:84)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authc.support.SecondaryAuthenticator.authenticate(SecondaryAuthenticator.java:94)\n\tat org.elasticsearch.xpack.security.authc.support.SecondaryAuthenticator.authenticateAndAttachToContext(SecondaryAuthenticator.java:78)\n\tat org.elasticsearch.xpack.security.rest.SecurityRestFilter.lambda$handleRequest$2(SecurityRestFilter.java:106)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.action.ActionListener$MappedActionListener.onResponse(ActionListener.java:127)\n\tat org.elasticsearch.action.ActionListener$RunBeforeActionListener.onResponse(ActionListener.java:415)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.writeAuthToContext(AuthenticatorChain.java:361)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.finishAuthentication(AuthenticatorChain.java:337)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.maybeLookupRunAsUser(AuthenticatorChain.java:202)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$doAuthenticate$1(AuthenticatorChain.java:121)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.onResponse(IteratingActionListener.java:141)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$getAuthenticatorConsumer$4(AuthenticatorChain.java:188)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authc.RealmsAuthenticator.lambda$consumeToken$3(RealmsAuthenticator.java:217)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.action.support.ContextPreservingActionListener.onResponse(ContextPreservingActionListener.java:31)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.onResponse(IteratingActionListener.java:141)\n\tat org.elasticsearch.xpack.security.authc.RealmsAuthenticator.lambda$consumeToken$0(RealmsAuthenticator.java:162)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authc.support.CachingUsernamePasswordRealm.lambda$authenticateWithCache$1(CachingUsernamePasswordRealm.java:155)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authc.support.CachingUsernamePasswordRealm.handleCachedAuthentication(CachingUsernamePasswordRealm.java:242)\n\tat org.elasticsearch.xpack.security.authc.support.CachingUsernamePasswordRealm.lambda$authenticateWithCache$2(CachingUsernamePasswordRealm.java:139)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.common.util.concurrent.ListenableFuture.notifyListenerDirectly(ListenableFuture.java:113)\n\tat org.elasticsearch.common.util.concurrent.ListenableFuture.addListener(ListenableFuture.java:55)\n\tat org.elasticsearch.xpack.security.authc.support.CachingUsernamePasswordRealm.authenticateWithCache(CachingUsernamePasswordRealm.java:134)\n\tat org.elasticsearch.xpack.security.authc.support.CachingUsernamePasswordRealm.authenticate(CachingUsernamePasswordRealm.java:105)\n\tat org.elasticsearch.xpack.security.authc.RealmsAuthenticator.lambda$consumeToken$2(RealmsAuthenticator.java:146)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.run(IteratingActionListener.java:117)\n\tat org.elasticsearch.xpack.security.authc.RealmsAuthenticator.consumeToken(RealmsAuthenticator.java:233)\n\tat org.elasticsearch.xpack.security.authc.RealmsAuthenticator.authenticate(RealmsAuthenticator.java:82)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$getAuthenticatorConsumer$5(AuthenticatorChain.java:180)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.onResponse(IteratingActionListener.java:135)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$getAuthenticatorConsumer$5(AuthenticatorChain.java:158)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.onResponse(IteratingActionListener.java:135)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$getAuthenticatorConsumer$5(AuthenticatorChain.java:158)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.onResponse(IteratingActionListener.java:135)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$getAuthenticatorConsumer$5(AuthenticatorChain.java:158)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.run(IteratingActionListener.java:117)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.doAuthenticate(AuthenticatorChain.java:136)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.authenticateAsync(AuthenticatorChain.java:95)\n\tat org.elasticsearch.xpack.security.authc.AuthenticationService.authenticate(AuthenticationService.java:149)\n\tat org.elasticsearch.xpack.security.authc.AuthenticationService.authenticate(AuthenticationService.java:127)\n\tat org.elasticsearch.xpack.security.rest.SecurityRestFilter.handleRequest(SecurityRestFilter.java:100)\n\tat org.elasticsearch.rest.RestController.dispatchRequest(RestController.java:390)\n\tat org.elasticsearch.rest.RestController.tryAllHandlers(RestController.java:469)\n\tat org.elasticsearch.rest.RestController.dispatchRequest(RestController.java:305)\n\tat org.elasticsearch.http.AbstractHttpServerTransport.dispatchRequest(AbstractHttpServerTransport.java:384)\n\tat org.elasticsearch.http.AbstractHttpServerTransport.handleIncomingRequest(AbstractHttpServerTransport.java:463)\n\tat org.elasticsearch.http.AbstractHttpServerTransport.incomingRequest(AbstractHttpServerTransport.java:358)\n\tat org.elasticsearch.http.netty4.Netty4HttpRequestHandler.channelRead0(Netty4HttpRequestHandler.java:35)\n\tat org.elasticsearch.http.netty4.Netty4HttpRequestHandler.channelRead0(Netty4HttpRequestHandler.java:19)\n\tat io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat org.elasticsearch.http.netty4.Netty4HttpPipeliningHandler.channelRead(Netty4HttpPipeliningHandler.java:48)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)\n\tat io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:327)\n\tat io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:299)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1372)\n\tat io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1235)\n\tat io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1284)\n\tat io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:510)\n\tat io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:449)\n\tat io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:279)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)\n\tat io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)\n\tat io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:722)\n\tat io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:623)\n\tat io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:586)\n\tat io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496)\n\tat io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)\n\tat io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)\n\tat java.base/java.lang.Thread.run(Thread.java:833)\n"
      }
    ],
    "type" : "resource_not_found_exception",
    "reason" : "index template matching [logs-cmsapi-8.6.0] not found",
    "stack_trace" : "org.elasticsearch.ResourceNotFoundException: index template matching [logs-cmsapi-8.6.0] not found\n\tat org.elasticsearch.action.admin.indices.template.get.TransportGetComposableIndexTemplateAction.masterOperation(TransportGetComposableIndexTemplateAction.java:86)\n\tat org.elasticsearch.action.admin.indices.template.get.TransportGetComposableIndexTemplateAction.masterOperation(TransportGetComposableIndexTemplateAction.java:30)\n\tat org.elasticsearch.action.support.master.TransportMasterNodeAction.executeMasterOperation(TransportMasterNodeAction.java:121)\n\tat org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction.lambda$doStart$3(TransportMasterNodeAction.java:215)\n\tat org.elasticsearch.action.ActionRunnable$2.doRun(ActionRunnable.java:62)\n\tat org.elasticsearch.common.util.concurrent.AbstractRunnable.run(AbstractRunnable.java:26)\n\tat org.elasticsearch.common.util.concurrent.EsExecutors$DirectExecutorService.execute(EsExecutors.java:223)\n\tat org.elasticsearch.action.support.master.TransportMasterNodeAction$AsyncSingleAction.doStart(TransportMasterNodeAction.java:215)\n\tat org.elasticsearch.action.support.master.TransportMasterNodeAction.doExecute(TransportMasterNodeAction.java:152)\n\tat org.elasticsearch.action.support.master.TransportMasterNodeAction.doExecute(TransportMasterNodeAction.java:52)\n\tat org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:79)\n\tat org.elasticsearch.action.support.ActionFilter$Simple.apply(ActionFilter.java:53)\n\tat org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:77)\n\tat org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.lambda$applyInternal$3(SecurityActionFilter.java:163)\n\tat org.elasticsearch.action.ActionListener$DelegatingFailureActionListener.onResponse(ActionListener.java:245)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.lambda$authorizeAction$4(AuthorizationService.java:396)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService$AuthorizationResultListener.onResponse(AuthorizationService.java:965)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService$AuthorizationResultListener.onResponse(AuthorizationService.java:929)\n\tat org.elasticsearch.action.support.ContextPreservingActionListener.onResponse(ContextPreservingActionListener.java:31)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.lambda$authorizeAction$5(AuthorizationService.java:410)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authz.RBACEngine.authorizeClusterAction(RBACEngine.java:165)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.authorizeAction(AuthorizationService.java:400)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.maybeAuthorizeRunAs(AuthorizationService.java:376)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.lambda$authorize$1(AuthorizationService.java:261)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.action.support.ContextPreservingActionListener.onResponse(ContextPreservingActionListener.java:31)\n\tat org.elasticsearch.xpack.security.authz.RBACEngine.lambda$resolveAuthorizationInfo$0(RBACEngine.java:138)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authz.store.CompositeRolesStore.lambda$getRoles$1(CompositeRolesStore.java:184)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.core.security.authz.store.RoleReferenceIntersection.lambda$buildRole$0(RoleReferenceIntersection.java:47)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.action.support.GroupedActionListener.onResponse(GroupedActionListener.java:55)\n\tat org.elasticsearch.xpack.security.authz.store.CompositeRolesStore.buildRoleFromRoleReference(CompositeRolesStore.java:232)\n\tat org.elasticsearch.xpack.core.security.authz.store.RoleReferenceIntersection.lambda$buildRole$1(RoleReferenceIntersection.java:50)\n\tat java.base/java.lang.Iterable.forEach(Iterable.java:75)\n\tat org.elasticsearch.xpack.core.security.authz.store.RoleReferenceIntersection.buildRole(RoleReferenceIntersection.java:50)\n\tat org.elasticsearch.xpack.security.authz.store.CompositeRolesStore.getRole(CompositeRolesStore.java:199)\n\tat org.elasticsearch.xpack.security.authz.store.CompositeRolesStore.getRoles(CompositeRolesStore.java:174)\n\tat org.elasticsearch.xpack.security.authz.RBACEngine.resolveAuthorizationInfo(RBACEngine.java:135)\n\tat org.elasticsearch.xpack.security.authz.AuthorizationService.authorize(AuthorizationService.java:263)\n\tat org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.lambda$applyInternal$4(SecurityActionFilter.java:159)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.action.ActionListener$MappedActionListener.onResponse(ActionListener.java:127)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.authenticateAsync(AuthenticatorChain.java:93)\n\tat org.elasticsearch.xpack.security.authc.AuthenticationService.authenticate(AuthenticationService.java:171)\n\tat org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.applyInternal(SecurityActionFilter.java:155)\n\tat org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.apply(SecurityActionFilter.java:114)\n\tat org.elasticsearch.action.support.TransportAction$RequestFilterChain.proceed(TransportAction.java:77)\n\tat org.elasticsearch.action.support.TransportAction.execute(TransportAction.java:54)\n\tat org.elasticsearch.tasks.TaskManager.registerAndExecute(TaskManager.java:170)\n\tat org.elasticsearch.client.internal.node.NodeClient.executeLocally(NodeClient.java:113)\n\tat org.elasticsearch.client.internal.node.NodeClient.doExecute(NodeClient.java:91)\n\tat org.elasticsearch.client.internal.support.AbstractClient.execute(AbstractClient.java:380)\n\tat org.elasticsearch.rest.action.admin.indices.RestGetComposableIndexTemplateAction.lambda$prepareRequest$0(RestGetComposableIndexTemplateAction.java:53)\n\tat org.elasticsearch.rest.BaseRestHandler.handleRequest(BaseRestHandler.java:103)\n\tat org.elasticsearch.xpack.security.rest.SecurityRestFilter.lambda$handleRequest$0(SecurityRestFilter.java:112)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authc.support.SecondaryAuthenticator.lambda$authenticateAndAttachToContext$2(SecondaryAuthenticator.java:84)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authc.support.SecondaryAuthenticator.authenticate(SecondaryAuthenticator.java:94)\n\tat org.elasticsearch.xpack.security.authc.support.SecondaryAuthenticator.authenticateAndAttachToContext(SecondaryAuthenticator.java:78)\n\tat org.elasticsearch.xpack.security.rest.SecurityRestFilter.lambda$handleRequest$2(SecurityRestFilter.java:106)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.action.ActionListener$MappedActionListener.onResponse(ActionListener.java:127)\n\tat org.elasticsearch.action.ActionListener$RunBeforeActionListener.onResponse(ActionListener.java:415)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.writeAuthToContext(AuthenticatorChain.java:361)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.finishAuthentication(AuthenticatorChain.java:337)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.maybeLookupRunAsUser(AuthenticatorChain.java:202)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$doAuthenticate$1(AuthenticatorChain.java:121)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.onResponse(IteratingActionListener.java:141)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$getAuthenticatorConsumer$4(AuthenticatorChain.java:188)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authc.RealmsAuthenticator.lambda$consumeToken$3(RealmsAuthenticator.java:217)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.action.support.ContextPreservingActionListener.onResponse(ContextPreservingActionListener.java:31)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.onResponse(IteratingActionListener.java:141)\n\tat org.elasticsearch.xpack.security.authc.RealmsAuthenticator.lambda$consumeToken$0(RealmsAuthenticator.java:162)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authc.support.CachingUsernamePasswordRealm.lambda$authenticateWithCache$1(CachingUsernamePasswordRealm.java:155)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.xpack.security.authc.support.CachingUsernamePasswordRealm.handleCachedAuthentication(CachingUsernamePasswordRealm.java:242)\n\tat org.elasticsearch.xpack.security.authc.support.CachingUsernamePasswordRealm.lambda$authenticateWithCache$2(CachingUsernamePasswordRealm.java:139)\n\tat org.elasticsearch.action.ActionListener$2.onResponse(ActionListener.java:162)\n\tat org.elasticsearch.common.util.concurrent.ListenableFuture.notifyListenerDirectly(ListenableFuture.java:113)\n\tat org.elasticsearch.common.util.concurrent.ListenableFuture.addListener(ListenableFuture.java:55)\n\tat org.elasticsearch.xpack.security.authc.support.CachingUsernamePasswordRealm.authenticateWithCache(CachingUsernamePasswordRealm.java:134)\n\tat org.elasticsearch.xpack.security.authc.support.CachingUsernamePasswordRealm.authenticate(CachingUsernamePasswordRealm.java:105)\n\tat org.elasticsearch.xpack.security.authc.RealmsAuthenticator.lambda$consumeToken$2(RealmsAuthenticator.java:146)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.run(IteratingActionListener.java:117)\n\tat org.elasticsearch.xpack.security.authc.RealmsAuthenticator.consumeToken(RealmsAuthenticator.java:233)\n\tat org.elasticsearch.xpack.security.authc.RealmsAuthenticator.authenticate(RealmsAuthenticator.java:82)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$getAuthenticatorConsumer$5(AuthenticatorChain.java:180)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.onResponse(IteratingActionListener.java:135)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$getAuthenticatorConsumer$5(AuthenticatorChain.java:158)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.onResponse(IteratingActionListener.java:135)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$getAuthenticatorConsumer$5(AuthenticatorChain.java:158)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.onResponse(IteratingActionListener.java:135)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.lambda$getAuthenticatorConsumer$5(AuthenticatorChain.java:158)\n\tat org.elasticsearch.xpack.core.common.IteratingActionListener.run(IteratingActionListener.java:117)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.doAuthenticate(AuthenticatorChain.java:136)\n\tat org.elasticsearch.xpack.security.authc.AuthenticatorChain.authenticateAsync(AuthenticatorChain.java:95)\n\tat org.elasticsearch.xpack.security.authc.AuthenticationService.authenticate(AuthenticationService.java:149)\n\tat org.elasticsearch.xpack.security.authc.AuthenticationService.authenticate(AuthenticationService.java:127)\n\tat org.elasticsearch.xpack.security.rest.SecurityRestFilter.handleRequest(SecurityRestFilter.java:100)\n\tat org.elasticsearch.rest.RestController.dispatchRequest(RestController.java:390)\n\tat org.elasticsearch.rest.RestController.tryAllHandlers(RestController.java:469)\n\tat org.elasticsearch.rest.RestController.dispatchRequest(RestController.java:305)\n\tat org.elasticsearch.http.AbstractHttpServerTransport.dispatchRequest(AbstractHttpServerTransport.java:384)\n\tat org.elasticsearch.http.AbstractHttpServerTransport.handleIncomingRequest(AbstractHttpServerTransport.java:463)\n\tat org.elasticsearch.http.AbstractHttpServerTransport.incomingRequest(AbstractHttpServerTransport.java:358)\n\tat org.elasticsearch.http.netty4.Netty4HttpRequestHandler.channelRead0(Netty4HttpRequestHandler.java:35)\n\tat org.elasticsearch.http.netty4.Netty4HttpRequestHandler.channelRead0(Netty4HttpRequestHandler.java:19)\n\tat io.netty.channel.SimpleChannelInboundHandler.channelRead(SimpleChannelInboundHandler.java:99)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat org.elasticsearch.http.netty4.Netty4HttpPipeliningHandler.channelRead(Netty4HttpPipeliningHandler.java:48)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)\n\tat io.netty.handler.codec.MessageToMessageCodec.channelRead(MessageToMessageCodec.java:111)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.ByteToMessageDecoder.fireChannelRead(ByteToMessageDecoder.java:327)\n\tat io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:299)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.timeout.IdleStateHandler.channelRead(IdleStateHandler.java:286)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.codec.MessageToMessageDecoder.channelRead(MessageToMessageDecoder.java:103)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1372)\n\tat io.netty.handler.ssl.SslHandler.decodeJdkCompatible(SslHandler.java:1235)\n\tat io.netty.handler.ssl.SslHandler.decode(SslHandler.java:1284)\n\tat io.netty.handler.codec.ByteToMessageDecoder.decodeRemovalReentryProtection(ByteToMessageDecoder.java:510)\n\tat io.netty.handler.codec.ByteToMessageDecoder.callDecode(ByteToMessageDecoder.java:449)\n\tat io.netty.handler.codec.ByteToMessageDecoder.channelRead(ByteToMessageDecoder.java:279)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357)\n\tat io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379)\n\tat io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365)\n\tat io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919)\n\tat io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:166)\n\tat io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:722)\n\tat io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:623)\n\tat io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:586)\n\tat io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496)\n\tat io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)\n\tat io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)\n\tat java.base/java.lang.Thread.run(Thread.java:833)\n"
  },
  "status" : 404
}

[ajuch]

Hi,
I see the same issue. To me it looks like the HttpTransportClient expects a Content-Type header which is not present in the response (https://github.com/elastic/elastic-transport-net/blob/cf5c8c94a6fb7d8658712e6accd39f9100e92090/src/Elastic.Transport/Components/TransportClient/HttpTransportClient.cs#LL89C35-L89C35). I created the index template with the expected name and this is still an issue. The stack trace I'm getting is:

Elastic.Transport.UnexpectedTransportException: Object reference not set to an instance of an object.
 ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at Elastic.Transport.HttpTransportClient.Request[TResponse](RequestData requestData)
   at Elastic.Transport.DefaultRequestPipeline`1.CallProductEndpoint[TResponse](RequestData requestData)
   at Elastic.Transport.DefaultHttpTransport`1.Request[TResponse](HttpMethod method, String path, PostData data, RequestParameters requestParameters)
   --- End of inner exception stack trace ---
   at Elastic.Transport.DefaultHttpTransport`1.ThrowUnexpectedTransportException[TResponse](Exception killerException, List`1 seenExceptions, RequestData requestData, TResponse response, RequestPipeline pipeline)
   at Elastic.Transport.DefaultHttpTransport`1.Request[TResponse](HttpMethod method, String path, PostData data, RequestParameters requestParameters)
   at Elastic.Ingest.Elasticsearch.ElasticsearchChannelBase`2.IndexTemplateExists(String name)
   at Elastic.Ingest.Elasticsearch.CommonSchema.EcsDataStreamChannel`1.BootstrapElasticsearch(BootstrapMethod bootstrapMethod, String ilmPolicy)
   at Elastic.Serilog.Sinks.ElasticsearchSink`1..ctor(ElasticsearchSinkOptions`1 options)
   at Elastic.Serilog.Sinks.ElasticsearchSink..ctor(ElasticsearchSinkOptions options)
   at Elastic.Serilog.Sinks.ElasticsearchSinkExtensions.ElasticCloud(LoggerSinkConfiguration loggerConfiguration, String cloudId, String apiKey, Action`1 configureOptions, Action`1 configureTransport)

The request in the debugger:

Method: HEAD, RequestUri: 'https://xxx.westeurope.azure.elastic-cloud.com/_index_template/logs-silo-8.6.0', Version: 1.1, Content: <null>, Headers:
{
  Accept: application/json
  User-Agent: elasticsearch-net/0.4.5+27cec744849928cd88c32527bc35e5cbd91ae8c7
  User-Agent: (Microsoft Windows 10.0.19045; .NET 7.0.2; Elastic.Transport)
  Authorization: ApiKey ABC123==
  Accept-Encoding: gzip
  Accept-Encoding: deflate
  traceparent: 00-xxx-00
}

The response looks like this in the debugger:

StatusCode: 200, ReasonPhrase: 'OK', Version: 1.1, Content: System.Net.Http.HttpConnectionResponseContent, Headers:
{
  X-Cloud-Request-Id: x
  X-Elastic-Product: Elasticsearch
  X-Found-Handling-Cluster: x
  X-Found-Handling-Instance: instance-0000000000
  Date: Wed, 07 Jun 2023 12:32:16 GMT
}

Hope this is getting fixed soon!

[pantonis]

Having the same issue as well.

[Mpdreamz]

This should be fixed by: elastic/elastic-transport-net#78

Will throw another update of ecs-dotnet on nuget once we release this fix in Elastic.Transport thanks all for reporting this one! 👍