add backwards-compatability for 'plugins', remove [inputs] and [outputs] headers

CHANGELOG.md

@@ -7,7 +7,7 @@ be "aggregator plugins" and "filter plugins" in the future. Additionally,
 `inputs/` and `outputs/` directories have been placed in the root-level `plugins/`
 directory.
 - **breaking change** the `io` plugin has been renamed `diskio`
-- **breaking change** Plugin measurements aggregated into a single measurement.
+- **breaking change** plugin measurements aggregated into a single measurement.
 - **breaking change** `jolokia` plugin: must use global tag/drop/pass parameters
 for configuration.
 - **breaking change** `twemproxy` plugin: `prefix` option removed.

CONFIGURATION.md

@@ -24,27 +24,27 @@ InfluxDB.
 
 ## Input Configuration
 
-There are some configuration options that are configurable per plugin:
+There are some configuration options that are configurable per input:
 
 * **name_override**: Override the base name of the measurement.
-(Default is the name of the plugin).
+(Default is the name of the input).
 * **name_prefix**: Specifies a prefix to attach to the measurement name.
 * **name_suffix**: Specifies a suffix to attach to the measurement name.
-* **tags**: A map of tags to apply to a specific plugin's measurements.
+* **tags**: A map of tags to apply to a specific input's measurements.
 * **interval**: How often to gather this metric. Normal plugins use a single
-global interval, but if one particular plugin should be run less or more often,
+global interval, but if one particular input should be run less or more often,
 you can configure that here.
 
 ### Input Filters
 
-There are also filters that can be configured per plugin:
+There are also filters that can be configured per input:
 
 * **pass**: An array of strings that is used to filter metrics generated by the
-current plugin. Each string in the array is tested as a glob match against field names
+current input. Each string in the array is tested as a glob match against field names
 and if it matches, the field is emitted.
 * **drop**: The inverse of pass, if a field name matches, it is not emitted.
 * **tagpass**: tag names and arrays of strings that are used to filter
-measurements by the current plugin. Each string in the array is tested as a glob
+measurements by the current input. Each string in the array is tested as a glob
 match against the tag name, and if it matches the measurement is emitted.
 * **tagdrop**: The inverse of tagpass. If a tag matches, the measurement is not
 emitted. This is tested on measurements that have passed the tagpass test.
@@ -64,14 +64,12 @@ fields which begin with `time_`.
   interval = "10s"
 
 # OUTPUTS
-[outputs]
 [[outputs.influxdb]]
   url = "http://192.168.59.103:8086" # required.
   database = "telegraf" # required.
   precision = "s"
 
 # INPUTS
-[inputs]
 [[inputs.cpu]]
   percpu = true
   totalcpu = false
@@ -82,7 +80,6 @@ fields which begin with `time_`.
 ### Input Config: tagpass and tagdrop
 
 ```toml
-[inputs]
 [[inputs.cpu]]
   percpu = true
   totalcpu = false

etc/telegraf.conf

@@ -49,8 +49,6 @@
 #                                  OUTPUTS                                    #
 ###############################################################################
 
-[outputs]
-
 # Configuration for influxdb server to send metrics to
 [[outputs.influxdb]]
   # The full HTTP or UDP endpoint URL for your InfluxDB instance.
@@ -79,8 +77,6 @@
 #                                  INPUTS                                     #
 ###############################################################################
 
-[inputs]
-
 # Read metrics about cpu usage
 [[inputs.cpu]]
   # Whether to report per-cpu stats or not

internal/config/config.go

@@ -287,7 +287,6 @@ var header = `# Telegraf configuration
 #                                  OUTPUTS                                    #
 ###############################################################################
 
-[outputs]
 `
 
 var pluginHeader = `
@@ -296,7 +295,6 @@ var pluginHeader = `
 #                                  INPUTS                                     #
 ###############################################################################
 
-[inputs]
 `
 
 var serviceInputHeader = `
@@ -470,7 +468,7 @@ func (c *Config) LoadConfig(path string) error {
 						pluginName)
 				}
 			}
-		case "inputs":
+		case "inputs", "plugins":
 			for pluginName, pluginVal := range subTable.Fields {
 				switch pluginSubTable := pluginVal.(type) {
 				case *ast.Table:

internal/config/testdata/telegraf-agent.toml

@@ -39,8 +39,6 @@
 #                                  OUTPUTS                                    #
 ###############################################################################
 
-[outputs]
-
 # Configuration for influxdb server to send metrics to
 [[outputs.influxdb]]
   # The full HTTP endpoint URL for your InfluxDB instance
@@ -70,8 +68,6 @@
 #                                  PLUGINS                                    #
 ###############################################################################
 
-[inputs]
-
 # Read Apache status information (mod_status)
 [[inputs.apache]]
   # An array of Apache status URI to gather stats.