Add a new subcommand 'check' to kolla-ansible, used to run the
smoke/sanity checks.

Add stub files to all services that don't currently have checks.

Change-Id: I9f661c5fc51fd5b9b266f23f6c524884613dee48
Partially-implements: blueprint sanity-check-container

Co-Authored-By: caoyuan <cao.yuan@99cloud.net>
Change-Id: I0604d262965b27b8bf6c560238811f81c830ea1a
Partially-implements: blueprint better-reconfigure

The default config for collectd is very different between OS distro.
For example, in ubuntu, collectd read config from "/etc/collect/collect.conf.d".
But in centos, collectd read config from "/etc/collect.d"
We need to provide a universal collectd template
to make it convenient for different distros.

Change-Id: Ib82fcbb923cb32dbafce04e1e639a400d59a4365
Closes-Bug: #1652246

* Merge prechecks.yml and site.yml playbook
* Create empty precheck.yml into all roles.

Change-Id: I8a138558a26c0a2a66c5fd48ed37be657c99c1dd
Implements: blueprint condition-pre-check

do_reconfigure.yml is introduced to use serial directive. But we use
it in wrong. Now serial has moved to playbook file. So it is time to
remove the do_reconfigure.yml file

Closes-Bug: #1628152
Change-Id: I8d42d27e6bc302a0e575b0353956eaef9b2ca9fd

TrivialFix

Change-Id: Iea79cb14d50def9f444ab55c9b410b09a199ca63

Collectd-ceilometer-plugin is essential for further
more detailed metrics collection, smarter scheduling and service
assurance.

Change-Id: I8da572980de370517ec120d745ad1d36e316b465
Implements: blueprint collectd-ceilometer-plugin