Publishing failed at transporting phase in SDL Tridion Sites 9 setup with UDP Microservices setup in HTTPS

Question

We set it up SDL Tridion Sites 9.0 Content Delivery UDP microservices for HTTPS with keystore file, Publishing failed at transporting phase

CM Transport cd_core Logs: D:\Tridion\bin\logs\cd_core.2019-02-01.log

2019-02-01 18:04:21,960 ERROR [Thread-0] BaseHTTPSTransportConnector - Unable to execute retrieveFileIfPresent on destination: https://xxxudpapi.xxxx.com:8084/httpupload due to: org.apache.http.conn.UnsupportedSchemeException. MaxRetries exceeded.
org.apache.http.conn.UnsupportedSchemeException: https protocol is not supported
    at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:109)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:373)
    at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:394)
    at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:237)
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185)
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)
    at com.tridion.transport.connection.connectors.BaseHTTPSTransportConnector.lambda$retrieveFileIfPresent$1(BaseHTTPSTransportConnector.java:301)
    at com.tridion.transport.connection.connectors.BaseHTTPSTransportConnector.runWithRetry(BaseHTTPSTransportConnector.java:529)
    at com.tridion.transport.connection.connectors.BaseHTTPSTransportConnector.retrieveFileIfPresent(BaseHTTPSTransportConnector.java:297)
    at com.tridion.transport.connection.connectors.TransportPoolConnector.retrieveFileIfPresent(TransportPoolConnector.java:78)
    at com.tridion.transport.workers.EndpointMetaWorker.getMetadata(EndpointMetaWorker.java:51)
    at com.tridion.transport.workers.EndpointMetaWorker.getMetadata(EndpointMetaWorker.java:33)
    at com.tridion.transport.DestinationController.<init>(DestinationController.java:112)
    at com.tridion.transport.DestinationControllerFactory.getDestinationController(DestinationControllerFactory.java:43)
    at com.tridion.transport.model.transaction.context.TransactionProcessor.createOrLoadTransaction(TransactionProcessor.java:166)
    at com.tridion.transport.model.transaction.context.TransactionProcessor.<init>(TransactionProcessor.java:73)
    at com.tridion.transport.TransportService.handleTransaction(TransportService.java:246)
2019-02-01 18:04:36,123 ERROR [pool(transportConnectorPool)-4-thread-1] BaseHTTPSTransportConnector - Unable to execute list on destination: https://xxxudpapi.xxxx.com:8084/httpupload due to: org.apache.http.conn.UnsupportedSchemeException. MaxRetries exceeded.
org.apache.http.conn.UnsupportedSchemeException: https protocol is not supported
    at org.apache.http.impl.conn.DefaultHttpClientConnectionOperator.connect(DefaultHttpClientConnectionOperator.java:109)
    at org.apache.http.impl.conn.PoolingHttpClientConnectionManager.connect(PoolingHttpClientConnectionManager.java:373)
    at org.apache.http.impl.execchain.MainClientExec.establishRoute(MainClientExec.java:394)
    at org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:237)
    at org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:185)
    at org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:89)
    at org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:110)
    at org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:185)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:83)
    at org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:108)
    at com.tridion.transport.connection.connectors.BaseHTTPSTransportConnector.lambda$list$3(BaseHTTPSTransportConnector.java:410)
    at com.tridion.transport.connection.connectors.BaseHTTPSTransportConnector.runWithRetry(BaseHTTPSTransportConnector.java:529)
    at com.tridion.transport.connection.connectors.BaseHTTPSTransportConnector.list(BaseHTTPSTransportConnector.java:406)
    at com.tridion.transport.connection.connectors.TransportPoolConnector.list(TransportPoolConnector.java:74)
    at com.tridion.transport.workers.DestinationProgressWorker.call(DestinationProgressWorker.java:59)
    at com.tridion.transport.DestinationControllerSlotChecker.call(DestinationControllerSlotChecker.java:58)
    at com.tridion.transport.DestinationControllerSlotChecker.call(DestinationControllerSlotChecker.java:19)
    at java.util.concurrent.FutureTask.run(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)

Answer 1

To perform HTTPS uploads (it's necessary for HTTPS Discovery Service Transport) the Transport Service, Refer to the documentation for Importing a certificate for publishing over HTTPS

We created the new Keystore file with certificate import and configured as mentioned in the documentation and issue has been fixed and publishing working fine.

cd_transport_config.xml

<Sender Type="DiscoveryService" Class="com.tridion.transport.connection.connectors.DiscoveryServiceTransportConnector">
    <KeyStore Path="d:\keystore\cacerts" Secret="xx" />  
</Sender>