Ewen Cheslack-Postava created KAFKA-1748:
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Summary: Decouple system test cluster resources definition from
service definitions
Key: KAFKA-1748
URL: https://issues.apache.org/jira/browse/KAFKA-1748
Project: Kafka
Issue Type: Bug
Affects Versions: 0.8.1.1
Reporter: Ewen Cheslack-Postava
Currently the system tests use JSON files that specify the set of services for
each test and where they should run (i.e. hostname). These currently assume
that you already have SSH keys setup, use the same username on the host running
the tests and the test cluster, don't require any additional ssh/scp/rsync
flags, and assume you'll always have a fixed set of compute resources (or that
you'll spend a lot of time editing config files).
While we don't want a whole cluster resource manager in the system tests, a bit
more flexibility would make it easier to, e.g., run tests against a local
vagrant cluster or on dynamically allocated EC2 instances. We can separate out
the basic resource spec (i.e. json specifying how to access machines) from the
service definition (i.e. a broker should run with settings x, y, z).
Restricting to a very simple set of mappings (i.e. map services to hosts with
round robin, optionally restricting to no reuse of hosts) should keep things
simple.
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