Swiss army knife for verifying MCP cluster health

Features:

 * Verify offline minions
 * Verify time diff on your minions
 * Produce JSON output for ntpq command
 * Verify NTP peers state on your minions
 * Verify contrail nodes contrail-status output
 * Verify galera cluster status
 * Verify rabbitmq cluster status
 * Produce JSON output for rabbitmqctl commands
 * Verify haproxy upstream status
 * Produce haproxy JSON stats output
 * Verify disk space usage
 * Verify disk inodes usage
 * Verify load average
 * Verify ifaces rx/tx drops on the interfaces
 * Verify memory usage

Related-Prod: PROD-29236

Change-Id: Id7423665e8d45baee4b96751d9df29112dfa10e5
2 files changed