Failed to start KSQL with docker-compose up

[asasvari]

Yesterday, 92b03ec introduced a change in docker-compose.yaml. I pulled the change and wanted to start KSQL, it failed with:

ksql-server_1      | [2019-09-10 09:39:38,273] ERROR Failed to start KSQL (io.confluent.ksql.rest.server.KsqlServerMain:62)
ksql-server_1      | java.net.SocketException: Protocol family unavailable
ksql-server_1      |    at sun.nio.ch.Net.bind0(Native Method)
ksql-server_1      |    at sun.nio.ch.Net.bind(Net.java:433)
ksql-server_1      |    at sun.nio.ch.Net.bind(Net.java:425)
ksql-server_1      |    at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223)
ksql-server_1      |    at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74)
ksql-server_1      |    at org.eclipse.jetty.server.ServerConnector.openAcceptChannel(ServerConnector.java:342)
ksql-server_1      |    at org.eclipse.jetty.server.ServerConnector.open(ServerConnector.java:308)
ksql-server_1      |    at org.eclipse.jetty.server.AbstractNetworkConnector.doStart(AbstractNetworkConnector.java:80)
ksql-server_1      |    at org.eclipse.jetty.server.ServerConnector.doStart(ServerConnector.java:236)
ksql-server_1      |    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
ksql-server_1      |    at org.eclipse.jetty.server.Server.doStart(Server.java:396)
ksql-server_1      |    at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
ksql-server_1      |    at io.confluent.rest.Application.start(Application.java:736)
ksql-server_1      |    at io.confluent.ksql.rest.server.KsqlRestApplication.start(KsqlRestApplication.java:201)
ksql-server_1      |    at io.confluent.ksql.rest.server.KsqlServerMain.tryStartApp(KsqlServerMain.java:74)
ksql-server_1      |    at io.confluent.ksql.rest.server.KsqlServerMain.main(KsqlServerMain.java:60)

ksql/docs/tutorials/docker-compose.yml

Line 48 in 3e36dc0

KSQL_LISTENERS: http://0.0.0.0:8088,http://[::]:8088

includes KSQL_LISTENERS: http://0.0.0.0:8088,http://[::]:8088

The problem is that "By default, the Docker daemon configures the container network for IPv4 only." (see 92b03ec).

92b03ec basically breaks environments where Docker is not configured with IPv6.

As a workaround, I changed KSQL_LISTENERS: http://0.0.0.0:8088,http://[::]:8088 to KSQL_LISTENERS: http://0.0.0.0:8088.

This behaviour is not documented in https://github.com/confluentinc/ksql/blob/master/docs/tutorials/basics-docker.rst

[stevenpyzhang]

92b03ec was reverted just now