a514aa0f98
To prepare for switching to TLS, set up TLS certs for Zookeeper and all of Nodepool and Zuul, but do not have them connect over TLS yet. We have observed problems with Kazoo using TLS in production. This will let us run the ZK quorum using TLS internally, and have Zuul and Nodepool connect over plaintext while also exposing the TLS client port so that we can perform some more production tests. Change-Id: If93b27f5b55be42be1cf6ee23258127fab5ce9ea
nodepool base setup
Role Variables
Install zookeeper to the node. This is not expected to be used in production, where the nodes would connect to an externally configured zookeeper instance. It can be useful for basic loopback tests in the gate, however.