Comment out configuration items in sample config file

The configured values are either the defaults, or examples which
may not work in a real environment. If this file is being used as
a template, the onus is on the user to uncomment and check all
desired parameters.

repmgr.conf.sample

@@ -15,21 +15,21 @@
 # schema (pattern: "repmgr_{cluster}"); while this name will be quoted
 # to preserve case, we recommend using lower case and avoiding whitespace
 # to facilitate easier querying of the repmgr views and tables.
-cluster=example_cluster
+#cluster=example_cluster
 
 # Node ID and name
 # (Note: we recommend to avoid naming nodes after their initial
 #  replication funcion, as this will cause confusion when e.g.
 #  "standby2" is promoted to primary)
-node=2           # a unique integer
-node_name=node2  # an arbitrary (but unique) string; we recommend using
+#node=2           # a unique integer
+#node_name=node2  # an arbitrary (but unique) string; we recommend using
                  # the server's hostname or another identifier unambiguously
                  # associated with the server to avoid confusion
 
 # Database connection information as a conninfo string
 # This must be accessible to all servers in the cluster; for details see:
 #   http://www.postgresql.org/docs/current/static/libpq-connect.html#LIBPQ-CONNSTRING
-conninfo='host=192.168.204.104 dbname=repmgr_db user=repmgr_usr'
+#conninfo='host=192.168.204.104 dbname=repmgr_db user=repmgr_usr'
 
 # Optional configuration items
 # ============================
@@ -40,13 +40,13 @@ conninfo='host=192.168.204.104 dbname=repmgr_db user=repmgr_usr'
 # When using cascading replication, a standby can connect to another
 # upstream standby node which is specified by setting 'upstream_node'.
 # In that case, the upstream node must exist before the new standby
-# can be registered. If 'upstream_node' is unset, then the standby
-# will connect to the primary node.
-upstream_node=1
+# can be registered. If 'upstream_node' is not set, then the standby
+# will connect directly to the primary node.
+#upstream_node=1
 
 # use physical replication slots - PostgreSQL 9.4 and later only
 # (default: 0)
-use_replication_slots=0
+#use_replication_slots=0
 
 # NOTE: 'max_replication_slots' should be configured for at least the
 # number of standbys which will connect to the primary.
@@ -56,15 +56,15 @@ use_replication_slots=0
 
 # Log level: possible values are DEBUG, INFO, NOTICE, WARNING, ERR, ALERT, CRIT or EMERG
 # (default: NOTICE)
-loglevel=NOTICE
+#loglevel=NOTICE
 
 # Logging facility: possible values are STDERR or - for Syslog integration - one of LOCAL0, LOCAL1, ..., LOCAL7, USER
 # (default: STDERR)
-logfacility=STDERR
+#logfacility=STDERR
 
 # stderr can be redirected to an arbitrary file:
 #
-logfile='/var/log/repmgr/repmgr.log'
+#logfile='/var/log/repmgr/repmgr.log'
 
 # event notifications can be passed to an arbitrary external program
 # together with the following parameters:
@@ -78,12 +78,12 @@ logfile='/var/log/repmgr/repmgr.log'
 # the values provided for "%t" and "%d" will probably contain spaces,
 # so should be quoted in the provided command configuration, e.g.:
 #
-event_notification_command='/path/to/some/script %n %e %s "%t" "%d"'
+#event_notification_command='/path/to/some/script %n %e %s "%t" "%d"'
 
 # By default, all notifications will be passed; the notification types
 # can be filtered to explicitly named ones:
 #
-event_notifications=master_register,standby_register,witness_create
+#event_notifications=master_register,standby_register,witness_create
 
 
 # Environment/command settings
@@ -91,17 +91,17 @@ event_notifications=master_register,standby_register,witness_create
 
 # path to PostgreSQL binary directory (location of pg_ctl, pg_basebackup etc.)
 # (if not provided, defaults to system $PATH)
-pg_bindir=/usr/bin/
+#pg_bindir=/usr/bin/
 
 # external command options
 
-rsync_options=--archive --checksum --compress --progress --rsh="ssh -o \"StrictHostKeyChecking no\""
-ssh_options=-o "StrictHostKeyChecking no"
+#rsync_options=--archive --checksum --compress --progress --rsh="ssh -o \"StrictHostKeyChecking no\""
+#ssh_options=-o "StrictHostKeyChecking no"
 
 # external command arguments. Values shown are examples.
 
-pg_ctl_options='-s'
-pg_basebackup_options='--xlog-method=s'
+#pg_ctl_options='-s'
+#pg_basebackup_options='--xlog-method=s'
 
 
 # Standby clone settings
@@ -123,30 +123,30 @@ pg_basebackup_options='--xlog-method=s'
 # Number of seconds to wait for a response from the primary server before
 # deciding it has failed.
 
-master_response_timeout=60
+#master_response_timeout=60
 
 # Number of attempts at what interval (in seconds) to try and
 # connect to  a server to establish its status (e.g. master
 # during failover)
-reconnect_attempts=6
-reconnect_interval=10
+#reconnect_attempts=6
+#reconnect_interval=10
 
 # Autofailover options
-failover=manual     # one of 'automatic', 'manual'
+#failover=manual    # one of 'automatic', 'manual'
                     # (default: manual)
-priority=100        # a value of zero or less prevents the node being promoted to primary
+#priority=100       # a value of zero or less prevents the node being promoted to primary
                     # (default: 100)
-promote_command='repmgr standby promote -f /path/to/repmgr.conf'
-follow_command='repmgr standby follow -f /path/to/repmgr.conf -W'
+#promote_command='repmgr standby promote -f /path/to/repmgr.conf'
+#follow_command='repmgr standby follow -f /path/to/repmgr.conf -W'
 
 # monitoring interval in seconds; default is 2
-monitor_interval_secs=2
+#monitor_interval_secs=2
 
 # change wait time for primary; before we bail out and exit when the primary
 # disappears, we wait 'reconnect_attempts' * 'retry_promote_interval_secs'
 # seconds; by default this would be half an hour, as 'retry_promote_interval_secs'
 # default value is 300)
-retry_promote_interval_secs=300
+#retry_promote_interval_secs=300
 
 # Number of seconds after which the witness server resyncs the repl_nodes table
-witness_repl_nodes_sync_interval_secs=15
+#witness_repl_nodes_sync_interval_secs=15