a0665cd9c6
Previously we were using the zuul user in the TLS jobs. This was due to a permissions issue when accessing the CA certificate in kayobe-config in the zuul user's home directory. This change reverts to the default of using the stack user for the TLS jobs. In order to make this work, the generated CA cert chain is added to the trust store. Change-Id: I875f8976df75dee68ba00842fe624c29cc1b123c