Change-Id: I4993f997ce3440317a286c8298ded0e96806d5bd

Issue:

  1) Multiple pipelines failure due to ssl class include:
  Once service.galera.ssl class being included,

    galera:
      master:

  pillar appears on slave nodes, which results to deploy failures.

  2) Test pillars lacks of ssl hashes

Fix:

  1) Split class into two separate classes.
  Now it is possible to include them separately in infra/conf.yml:

  openstack_database_node01:
    params:
      linux_system_codename: xenial
    classes:
    - cluster.${_param:cluster_name}.openstack.database_init
    - cluster.${_param:cluster_name}.openstack.database.ssl.master
  openstack_database_node02:
    params:
      linux_system_codename: xenial
    classes:
    - cluster.${_param:cluster_name}.openstack.database.ssl.slave

  Further usage of service.galera.ssl class should be deprecated.

  2) Adding ssl hashes to test pillars

Change-Id: I2df8b3c0da018e53cf7e97e24d3b1b9b49d3f75e

Change-Id: I70f258509b38b2a616be34913c7345d93c2b50ad

There is no guarntee that pillars are loaded before pillars-from-file
as result we cant assume variables defined via pillars: are available
when pillars-from-file is loaded. Move 'source' definitions of repos to
.kitchen.yml as it uses ENV variable

Change-Id: Id94edd2351f17f5ac130db41a97d3be9cd5f3be4

Change-Id: Ib5db9f151baaf3fa0bca97a5457cf836bc57b88c

Change-Id: Ica7d98730bc6f8bd591b44b1e3eec7855d95898a

This reverts commit 73fe802ded9054d2a9e18f83b163565ff425a9b3, reversing
changes made to 13c9ec76aa.

This patch fixes broken dependencies installed via
python-mysqldb which needs mysql-common-5.7.

Signed-off-by: Ondrej Vasko <ondrej.vaskoo@gmail.com>

Mitaka staging test repository for test-kitchen was
missing KEY_ID which prevented apt-get update to
run successfuly.

Signed-off-by: Ondrej Vasko <ondrej.vaskoo@gmail.com>

Galera repository has changed in upstream and has
divided wsrep and galera directories.
This patch sets up 2 repositories `galera-3` and
`mysql`wsrep-5.6`.

Signed-off-by: Ondrej Vasko <ondrej.vaskoo@gmail.com>

Make max_connections and innodb_buffer_pool_size configurable
through soft params instead of hard.

Change-Id: Id0bb8f6b6091289275864bf4dd6a6890d11b4782