Fix Hindsight modules issues

- Decoder for kafka_input.lua has been defined
- Instructions limit for input Hindsight plugins has been added
to general config, because it's not applied from local config
- Walkaround of issue with several Kafka brokers has been added

Change-Id: Iac19353513bc38bdd8c94de82d7332f3c4cac76d

deployment_scripts/puppet/modules/telemetry/files/hindsight/run/input/kafka_input.lua

@@ -22,7 +22,9 @@ if decoder_module then
 end
 
 if type(brokerlist) == "table" then
-    brokerlist = table.concat(brokerlist, ",")
+    -- TODO(ityaptin) Research issue with several brokers
+    -- brokerlist = table.concat(brokerlist, ",")
+    brokerlist = table.remove(brokerlist, 1)
 end
 
 local consumer = kafka.consumer(brokerlist, topics, consumer_conf, topic_conf)

deployment_scripts/puppet/modules/telemetry/files/hindsight/run/output/influxdb_tcp.lua

@@ -13,10 +13,10 @@ local influxdb_port = read_config('port') or error('influxdb port is required')
 local influxdb_user = read_config('username')
 local influxdb_password = read_config('password')
 local batch_max_lines = read_config('batch_max_lines') or 3000
+local database_created = not (read_config("create_database") or false)
 assert(batch_max_lines > 0, 'batch_max_lines must be greater than zero')
 
 local db = read_config("database") or error("database config is required")
-local database_created = false
 
 local debug_output = read_config("debug") or false
 local write

deployment_scripts/puppet/modules/telemetry/templates/hindsight/hindsight.cfg.erb

@@ -13,9 +13,9 @@ io_lua_path            = analysis_lua_path ..  ";<%= @sandbox_dir %>/io_modules/
 io_lua_cpath           = analysis_lua_cpath .. ";<%= @sandbox_dir %>/io_modules/?.so"
 
 input_defaults = {
+  instruction_limit = 0
   -- output_limit      = 64 * 1024
   -- memory_limit      = 8 * 1024 * 1024
-  -- instruction_limit = 1e6
   -- preserve_data     = false
   -- ticker_interval   = 0
 }

deployment_scripts/puppet/modules/telemetry/templates/hindsight/input/kafka_input.cfg.erb

@@ -12,6 +12,7 @@ topic_conf       = {}
 metadata_fields  = "<%= @metadata_fields %>"
 instuction_limit = 0
 ticker_interval  = 60
+decoder          = "ceilometer"
 <% if @resource_api %>
 decode_resources = <%= @resource_api %>
 <% else %>