docker.userguide: Add info about collectd master & experimental containers

[barometer.git] / docker / ansible / default.inv

diff --git a/docker/ansible/default.inv b/docker/ansible/default.inv
index 45d9fa0..0f76e9c 100644 (file)
--- a/docker/ansible/default.inv
+++ b/docker/ansible/default.inv
@@ -1,3 +1,12 @@
+# NOTE: for defining hosts both hostnames and IP addresses forms can be used
+# however it is advised to keep it consistent over the file, especially if
+# the same host is used by multiple containers
+# e.g. if some host will be described by IP address at first('127.0.0.1')
+# and at some place the same host will be called using its hostname
+# ('localhost') then ansible will treat them as different entities and
+# synchronization problems during parallel dependencies installation
+# may occur)
+
 [collectd_hosts]
 localhost
 
@@ -6,16 +15,22 @@ install_mcelog=true
 insert_ipmi_modules=true
 
 [influxdb_hosts]
-#localhost
+#hostname or ip must be used.
+#using localhost will cause issues with collectd network plugin.
+#hostname
 
 [grafana_hosts]
-#localhost
+#hostname
 
 [prometheus_hosts]
 #localhost
 
+[zookeeper_hosts]
+#NOTE: currently one zookeeper host is supported
+#hostname
+
 [kafka_hosts]
-#localhost
+#hostname
 
 [ves_hosts]
-#localhost
+#hostname