Konstantine Karantasis created KAFKA-8417: ---------------------------------------------
Summary: Remove redundant network definition --net=host when starting testing docker containers Key: KAFKA-8417 URL: https://issues.apache.org/jira/browse/KAFKA-8417 Project: Kafka Issue Type: Bug Components: system tests Reporter: Konstantine Karantasis Assignee: Konstantine Karantasis The switches {{--net}} and {{--network}} are equivalent in docker, with the latter being preferred. (see [https://github.com/docker/cli/blob/master/cli/command/container/opts.go] where currently there's the comment: _// We allow for both "--net" and "--network", although the latter is the recommended way._) However, in recent Docker versions, defining both as follows: {{--net=host --network ducknet}} fails with error: {{docker: conflicting options: cannot attach both user-defined and non-user-defined network-modes.}} Removing {{--net=host}} and keeping only the user-defined network should fix the issue. -- This message was sent by Atlassian JIRA (v7.6.3#76005)