style: Add deprecation notices to plugin options

config/config.go

@@ -181,13 +181,12 @@ type AgentConfig struct {
 	// FlushBufferWhenFull tells Telegraf to flush the metric buffer whenever
 	// it fills up, regardless of FlushInterval. Setting this option to true
 	// does _not_ deactivate FlushInterval.
-	FlushBufferWhenFull bool // deprecated in 0.13; has no effect
+	FlushBufferWhenFull bool `toml:"flush_buffer_when_full" deprecated:"0.13.0;2.0.0;option is ignored"`
 
 	// TODO(cam): Remove UTC and parameter, they are no longer
 	// valid for the agent config. Leaving them here for now for backwards-
 	// compatibility
-	// Deprecated: 1.0.0 after, has no effect
-	UTC bool `toml:"utc"`
+	UTC bool `toml:"utc" deprecated:"1.0.0;option is ignored"`
 
 	// Debug is the option for running in debug mode
 	Debug bool `toml:"debug"`

plugins/common/kafka/config.go

@@ -1,8 +1,6 @@
 package kafka
 
 import (
-	"log"
-
 	"github.com/Shopify/sarama"
 	"github.com/influxdata/telegraf/plugins/common/tls"
 )
@@ -53,18 +51,14 @@ type Config struct {
 	ClientID         string `toml:"client_id"`
 	CompressionCodec int    `toml:"compression_codec"`
 
-	// EnableTLS deprecated
-	EnableTLS *bool `toml:"enable_tls"`
+	EnableTLS *bool `toml:"enable_tls" deprecated:"1.17.0;option is ignored"`
 
 	// Disable full metadata fetching
 	MetadataFull *bool `toml:"metadata_full"`
 }
 
 // SetConfig on the sarama.Config object from the Config struct.
 func (k *Config) SetConfig(config *sarama.Config) error {
-	if k.EnableTLS != nil {
-		log.Printf("W! [kafka] enable_tls is deprecated, and the setting does nothing, you can safely remove it from the config")
-	}
 	if k.Version != "" {
 		version, err := sarama.ParseKafkaVersion(k.Version)
 		if err != nil {

plugins/common/tls/config.go

@@ -19,10 +19,9 @@ type ClientConfig struct {
 	InsecureSkipVerify bool   `toml:"insecure_skip_verify"`
 	ServerName         string `toml:"tls_server_name"`
 
-	// Deprecated in 1.7; use TLS variables above
-	SSLCA   string `toml:"ssl_ca"`
-	SSLCert string `toml:"ssl_cert"`
-	SSLKey  string `toml:"ssl_key"`
+	SSLCA   string `toml:"ssl_ca" deprecated:"1.7.0;use 'tls_ca' instead"`
+	SSLCert string `toml:"ssl_cert" deprecated:"1.7.0;use 'tls_cert' instead"`
+	SSLKey  string `toml:"ssl_key" deprecated:"1.7.0;use 'tls_key' instead"`
 }
 
 // ServerConfig represents the standard server TLS config.

plugins/inputs/activemq/activemq.go

@@ -18,8 +18,8 @@ import (
 )
 
 type ActiveMQ struct {
-	Server          string          `toml:"server"`
-	Port            int             `toml:"port"`
+	Server          string          `toml:"server" deprecated:"1.11.0;use 'url' instead"`
+	Port            int             `toml:"port" deprecated:"1.11.0;use 'url' instead"`
 	URL             string          `toml:"url"`
 	Username        string          `toml:"username"`
 	Password        string          `toml:"password"`
@@ -86,11 +86,6 @@ var sampleConfig = `
   ## ActiveMQ WebConsole URL
   url = "http://127.0.0.1:8161"
 
-  ## Required ActiveMQ Endpoint
-  ##   deprecated in 1.11; use the url option
-  # server = "127.0.0.1"
-  # port = 8161
-
   ## Credentials for basic HTTP authentication
   # username = "admin"
   # password = "admin"

plugins/inputs/aerospike/aerospike.go

@@ -23,7 +23,7 @@ type Aerospike struct {
 	Password string `toml:"password"`
 
 	EnableTLS bool   `toml:"enable_tls"`
-	EnableSSL bool   `toml:"enable_ssl"` // deprecated in 1.7; use enable_tls
+	EnableSSL bool   `toml:"enable_ssl" deprecated:"1.7.0;use 'enable_tls' instead"`
 	TLSName   string `toml:"tls_name"`
 	tlsint.ClientConfig
 

plugins/inputs/amqp_consumer/amqp_consumer.go

@@ -27,7 +27,7 @@ type semaphore chan empty
 
 // AMQPConsumer is the top level struct for this plugin
 type AMQPConsumer struct {
-	URL                    string            `toml:"url" deprecated:"1.7.0;use brokers"`
+	URL                    string            `toml:"url" deprecated:"1.7.0;use 'brokers' instead"`
 	Brokers                []string          `toml:"brokers"`
 	Username               string            `toml:"username"`
 	Password               string            `toml:"password"`
@@ -90,10 +90,6 @@ const (
 
 func (a *AMQPConsumer) SampleConfig() string {
 	return `
-  ## Broker to consume from.
-  ##   deprecated in 1.7; use the brokers option
-  # url = "amqp://localhost:5672/influxdb"
-
   ## Brokers to consume from.  If multiple brokers are specified a random broker
   ## will be selected anytime a connection is established.  This can be
   ## helpful for load balancing when not using a dedicated load balancer.

plugins/inputs/consul/consul.go

@@ -16,7 +16,7 @@ type Consul struct {
 	Token      string
 	Username   string
 	Password   string
-	Datacentre string // deprecated in 1.10; use Datacenter
+	Datacentre string `toml:"datacentre" deprecated:"1.10.0;use 'datacenter' instead"`
 	Datacenter string
 	tls.ClientConfig
 	TagDelimiter  string

plugins/inputs/deprecations.go

@@ -8,15 +8,19 @@ var Deprecations = map[string]telegraf.DeprecationInfo{
 		Since:  "1.7.0",
 		Notice: "use 'inputs.jolokia2' with the 'cassandra.conf' example configuration instead",
 	},
-	"io": {
-		Since:     "0.10.0",
-		RemovalIn: "2.0.0",
-		Notice:    "use 'inputs.diskio' instead",
+	"http_listener": {
+		Since:  "1.9.0",
+		Notice: "has been renamed to 'influxdb_listener', use 'inputs.influxdb_listener' or 'inputs.http_listener_v2' instead",
 	},
 	"httpjson": {
 		Since:  "1.6.0",
 		Notice: "use 'inputs.http' instead",
 	},
+	"io": {
+		Since:     "0.10.0",
+		RemovalIn: "2.0.0",
+		Notice:    "use 'inputs.diskio' instead",
+	},
 	"jolokia": {
 		Since:  "1.5.0",
 		Notice: "use 'inputs.jolokia2' instead",

plugins/inputs/docker/docker.go

@@ -28,14 +28,14 @@ import (
 // Docker object
 type Docker struct {
 	Endpoint       string
-	ContainerNames []string // deprecated in 1.4; use container_name_include
+	ContainerNames []string `toml:"container_names" deprecated:"1.4.0;use 'container_name_include' instead"`
 
 	GatherServices bool `toml:"gather_services"`
 
 	Timeout          config.Duration
-	PerDevice        bool     `toml:"perdevice"`
+	PerDevice        bool     `toml:"perdevice" deprecated:"1.18.0;use 'perdevice_include' instead"`
 	PerDeviceInclude []string `toml:"perdevice_include"`
-	Total            bool     `toml:"total"`
+	Total            bool     `toml:"total" deprecated:"1.18.0;use 'total_include' instead"`
 	TotalInclude     []string `toml:"total_include"`
 	TagEnvironment   []string `toml:"tag_env"`
 	LabelInclude     []string `toml:"docker_label_include"`
@@ -74,14 +74,6 @@ const (
 	PB = 1000 * TB
 
 	defaultEndpoint = "unix:///var/run/docker.sock"
-
-	perDeviceIncludeDeprecationWarning = "'perdevice' setting is set to 'true' so 'blkio' and 'network' metrics will " +
-		"be collected. Please set it to 'false' and use 'perdevice_include' instead to control this behaviour as " +
-		"'perdevice' will be deprecated"
-
-	totalIncludeDeprecationWarning = "'total' setting is set to 'false' so 'blkio' and 'network' metrics will not be " +
-		"collected. Please set it to 'true' and use 'total_include' instead to control this behaviour as 'total' " +
-		"will be deprecated"
 )
 
 var (
@@ -100,9 +92,6 @@ var sampleConfig = `
   ## Set to true to collect Swarm metrics(desired_replicas, running_replicas)
   gather_services = false
 
-  ## Only collect metrics for these containers, collect all if empty
-  container_names = []
-
   ## Set the source tag for the metrics to the container ID hostname, eg first 12 chars
   source_tag = false
 
@@ -121,24 +110,11 @@ var sampleConfig = `
   ## Timeout for docker list, info, and stats commands
   timeout = "5s"
 
-  ## Whether to report for each container per-device blkio (8:0, 8:1...),
-  ## network (eth0, eth1, ...) and cpu (cpu0, cpu1, ...) stats or not.
-  ## Usage of this setting is discouraged since it will be deprecated in favor of 'perdevice_include'.
-  ## Default value is 'true' for backwards compatibility, please set it to 'false' so that 'perdevice_include' setting
-  ## is honored.
-  perdevice = true
-
   ## Specifies for which classes a per-device metric should be issued
   ## Possible values are 'cpu' (cpu0, cpu1, ...), 'blkio' (8:0, 8:1, ...) and 'network' (eth0, eth1, ...)
   ## Please note that this setting has no effect if 'perdevice' is set to 'true'
   # perdevice_include = ["cpu"]
 
-  ## Whether to report for each container total blkio and network stats or not.
-  ## Usage of this setting is discouraged since it will be deprecated in favor of 'total_include'.
-  ## Default value is 'false' for backwards compatibility, please set it to 'true' so that 'total_include' setting
-  ## is honored.
-  total = false
-
   ## Specifies for which classes a total metric should be issued. Total is an aggregated of the 'perdevice' values.
   ## Possible values are 'cpu', 'blkio' and 'network'
   ## Total 'cpu' is reported directly by Docker daemon, and 'network' and 'blkio' totals are aggregated by this plugin.
@@ -182,7 +158,6 @@ func (d *Docker) Init() error {
 
 	// Temporary logic needed for backwards compatibility until 'perdevice' setting is removed.
 	if d.PerDevice {
-		d.Log.Warn(perDeviceIncludeDeprecationWarning)
 		if !choice.Contains("network", d.PerDeviceInclude) {
 			d.PerDeviceInclude = append(d.PerDeviceInclude, "network")
 		}
@@ -193,7 +168,6 @@ func (d *Docker) Init() error {
 
 	// Temporary logic needed for backwards compatibility until 'total' setting is removed.
 	if !d.Total {
-		d.Log.Warn(totalIncludeDeprecationWarning)
 		if choice.Contains("cpu", d.TotalInclude) {
 			d.TotalInclude = []string{"cpu"}
 		} else {

plugins/inputs/filecount/filecount.go

@@ -14,10 +14,6 @@ import (
 )
 
 const sampleConfig = `
-  ## Directory to gather stats about.
-  ##   deprecated in 1.9; use the directories option
-  # directory = "/var/cache/apt/archives"
-
   ## Directories to gather stats about.
   ## This accept standard unit glob matching rules, but with the addition of
   ## ** as a "super asterisk". ie:
@@ -51,7 +47,7 @@ const sampleConfig = `
 `
 
 type FileCount struct {
-	Directory      string // deprecated in 1.9
+	Directory      string `toml:"directory" deprecated:"1.9.0;use 'directories' instead"`
 	Directories    []string
 	Name           string
 	Recursive      bool

plugins/inputs/http_listener_v2/http_listener_v2.go

@@ -39,7 +39,7 @@ type TimeFunc func() time.Time
 // HTTPListenerV2 is an input plugin that collects external metrics sent via HTTP
 type HTTPListenerV2 struct {
 	ServiceAddress string            `toml:"service_address"`
-	Path           string            `toml:"path"`
+	Path           string            `toml:"path" deprecated:"1.20.0;use 'paths' instead"`
 	Paths          []string          `toml:"paths"`
 	PathTag        bool              `toml:"path_tag"`
 	Methods        []string          `toml:"methods"`
@@ -71,10 +71,6 @@ const sampleConfig = `
   ## Address and port to host HTTP listener on
   service_address = ":8080"
 
-  ## Path to listen to.
-  ## This option is deprecated and only available for backward-compatibility. Please use paths instead.
-  # path = ""
-
   ## Paths to listen to.
   # paths = ["/telegraf"]
 

plugins/inputs/http_response/http_response.go

@@ -65,10 +65,6 @@ func (h *HTTPResponse) Description() string {
 }
 
 var sampleConfig = `
-  ## Deprecated in 1.12, use 'urls'
-  ## Server address (default http://localhost)
-  # address = "http://localhost"
-
   ## List of urls to query.
   # urls = ["http://localhost"]
 
@@ -425,7 +421,6 @@ func (h *HTTPResponse) Gather(acc telegraf.Accumulator) error {
 		if h.Address == "" {
 			h.URLs = []string{"http://localhost"}
 		} else {
-			h.Log.Warn("'address' deprecated in telegraf 1.12, please use 'urls'")
 			h.URLs = []string{h.Address}
 		}
 	}

plugins/inputs/httpjson/httpjson.go

@@ -23,7 +23,7 @@ var (
 
 // HTTPJSON struct
 type HTTPJSON struct {
-	Name            string
+	Name            string `toml:"name" deprecated:"1.3.0;use 'name_override', 'name_suffix', 'name_prefix' instead"`
 	Servers         []string
 	Method          string
 	TagKeys         []string
@@ -70,12 +70,6 @@ var sampleConfig = `
   ## NOTE This plugin only reads numerical measurements, strings and booleans
   ## will be ignored.
 
-  ## Name for the service being polled.  Will be appended to the name of the
-  ## measurement e.g. httpjson_webserver_stats
-  ##
-  ## Deprecated (1.3.0): Use name_override, name_suffix, name_prefix instead.
-  name = "webserver_stats"
-
   ## URL of each server in the service's cluster
   servers = [
     "http://localhost:9999/stats/",

plugins/inputs/influxdb_listener/influxdb_listener.go

@@ -33,7 +33,7 @@ type InfluxDBListener struct {
 	ReadTimeout        config.Duration `toml:"read_timeout"`
 	WriteTimeout       config.Duration `toml:"write_timeout"`
 	MaxBodySize        config.Size     `toml:"max_body_size"`
-	MaxLineSize        config.Size     `toml:"max_line_size"` // deprecated in 1.14; ignored
+	MaxLineSize        config.Size     `toml:"max_line_size" deprecated:"1.14.0;parser now handles lines of unlimited length and option is ignored"`
 	BasicUsername      string          `toml:"basic_username"`
 	BasicPassword      string          `toml:"basic_password"`
 	DatabaseTag        string          `toml:"database_tag"`
@@ -142,10 +142,6 @@ func (h *InfluxDBListener) Init() error {
 		h.MaxBodySize = config.Size(defaultMaxBodySize)
 	}
 
-	if h.MaxLineSize != 0 {
-		h.Log.Warnf("Use of deprecated configuration: 'max_line_size'; parser now handles lines of unlimited length and option is ignored")
-	}
-
 	if h.ReadTimeout < config.Duration(time.Second) {
 		h.ReadTimeout = config.Duration(time.Second * 10)
 	}

plugins/inputs/mongodb/mongodb.go

@@ -34,8 +34,8 @@ type MongoDB struct {
 }
 
 type Ssl struct {
-	Enabled bool
-	CaCerts []string `toml:"cacerts"`
+	Enabled bool     `toml:"ssl_enabled" deprecated:"1.3.0;use 'tls_*' options instead"`
+	CaCerts []string `toml:"cacerts" deprecated:"1.3.0;use 'tls_ca' instead"`
 }
 
 var sampleConfig = `

plugins/inputs/mqtt_consumer/mqtt_consumer.go

@@ -64,11 +64,13 @@ type MQTTConsumer struct {
 	ConnectionTimeout      config.Duration      `toml:"connection_timeout"`
 	MaxUndeliveredMessages int                  `toml:"max_undelivered_messages"`
 	parser                 parsers.Parser
-	// Legacy metric buffer support; deprecated in v0.10.3
-	MetricBuffer      int
+
+	MetricBuffer      int `toml:"metric_buffer" deprecated:"0.10.3;2.0.0;option is ignored"`
 	PersistentSession bool
 	ClientID          string `toml:"client_id"`
+
 	tls.ClientConfig
+
 	Log           telegraf.Logger
 	clientFactory ClientFactory
 	client        Client

plugins/inputs/nats_consumer/nats_consumer.go

@@ -49,9 +49,7 @@ type natsConsumer struct {
 	PendingBytesLimit   int `toml:"pending_bytes_limit"`
 
 	MaxUndeliveredMessages int `toml:"max_undelivered_messages"`
-
-	// Legacy metric buffer support; deprecated in v0.10.3
-	MetricBuffer int
+	MetricBuffer           int `toml:"metric_buffer" deprecated:"0.10.3;2.0.0;option is ignored"`
 
 	conn *nats.Conn
 	subs []*nats.Subscription

plugins/inputs/nsq_consumer/nsq_consumer.go

@@ -29,7 +29,7 @@ func (l *logger) Output(_ int, s string) error {
 
 //NSQConsumer represents the configuration of the plugin
 type NSQConsumer struct {
-	Server      string   `toml:"server"`
+	Server      string   `toml:"server" deprecated:"1.5.0;use 'nsqd' instead"`
 	Nsqd        []string `toml:"nsqd"`
 	Nsqlookupd  []string `toml:"nsqlookupd"`
 	Topic       string   `toml:"topic"`
@@ -50,9 +50,6 @@ type NSQConsumer struct {
 }
 
 var sampleConfig = `
-  ## Server option still works but is deprecated, we just prepend it to the nsqd array.
-  # server = "localhost:4150"
-
   ## An array representing the NSQD TCP HTTP Endpoints
   nsqd = ["localhost:4150"]
 

plugins/inputs/openldap/openldap.go

@@ -15,10 +15,10 @@ import (
 type Openldap struct {
 	Host               string
 	Port               int
-	SSL                string `toml:"ssl"` // Deprecated in 1.7; use TLS
+	SSL                string `toml:"ssl" deprecated:"1.7.0;use 'tls' instead"`
 	TLS                string `toml:"tls"`
 	InsecureSkipVerify bool
-	SSLCA              string `toml:"ssl_ca"` // Deprecated in 1.7; use TLSCA
+	SSLCA              string `toml:"ssl_ca" deprecated:"1.7.0;use 'tls_ca' instead"`
 	TLSCA              string `toml:"tls_ca"`
 	BindDn             string
 	BindPassword       string