check_couchdb_replication

! Please see https://www.claudiokuenzler.com/monitoring-plugins/check_couchdb_replication.php for full and updated documentation !

** Version history **
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# 20180105: Created plugin
# 20180108: Added -d detection
# 20180326: Input sanitation (either -d or -r are required)
# 20180326: Avoid confusion about wrong credentials (issue 4)
# 20180326: Add possibility to check all replications at once (-r ALL)
# 20180326: Handle authentication error "You are not a server admin."

** Definition of parameters **
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* -H Hostname or ip address of CouchDB Host (or Cluster IP)
-P Port (defaults to 5984)
-S Use https
-u Username if authentication is required
-p Password if authentication is required
** -r Replication ID to monitor (doc_id) or "ALL" to check all replications
** -d Dynamically detect and list all available replications
-h Help!

*-H is mandatory for all ways of running the script
**Either -d for detection or -r is mandatory to check replication status (doc_id)