Add tag for target url to phpfpm input (influxdata#3928)

plugins/inputs/phpfpm/README.md

@@ -1,65 +1,59 @@
-# Telegraf plugin: phpfpm
-
-Get phpfpm stat using either HTTP status page or fpm socket.
-
-# Measurements
-
-Meta:
-
-- tags: `pool=poolname`
-
-Measurement names:
-
-- phpfpm
-
-Measurement field:
-
-- accepted_conn
-- listen_queue
-- max_listen_queue
-- listen_queue_len
-- idle_processes
-- active_processes
-- total_processes
-- max_active_processes
-- max_children_reached
-- slow_requests
-
-# Example output
-
-Using this configuration:
-
-```
-[phpfpm]
-  # An array of address to gather stats about. Specify an ip on hostname
-  # with optional port and path. ie localhost, 10.10.3.33/server-status, etc.
-  #
-  # We can configure in three modes:
-  #   - unixsocket: the string is the path to fpm socket like
-  #      /var/run/php5-fpm.sock
-  #   - http: the URL has to start with http:// or https://
-  #   - fcgi: the URL has to start with fcgi:// or cgi://, and socket port must present
-  #
-  # If no servers are specified, then default to 127.0.0.1/server-status
-  urls = ["http://localhost/status", "10.0.0.12:/var/run/php5-fpm-www2.sock", "fcgi://10.0.0.12:9000/status"]
+# PHP-FPM Input Plugin
+
+Get phpfpm stats using either HTTP status page or fpm socket.
+
+### Configuration:
+
+```toml
+# Read metrics of phpfpm, via HTTP status page or socket
+[[inputs.phpfpm]]
+  ## An array of addresses to gather stats about. Specify an ip or hostname
+  ## with optional port and path
+  ##
+  ## Plugin can be configured in three modes (either can be used):
+  ##   - http: the URL must start with http:// or https://, ie:
+  ##       "http://localhost/status"
+  ##       "http://192.168.130.1/status?full"
+  ##
+  ##   - unixsocket: path to fpm socket, ie:
+  ##       "/var/run/php5-fpm.sock"
+  ##      or using a custom fpm status path:
+  ##       "/var/run/php5-fpm.sock:fpm-custom-status-path"
+  ##
+  ##   - fcgi: the URL must start with fcgi:// or cgi://, and port must be present, ie:
+  ##       "fcgi://10.0.0.12:9000/status"
+  ##       "cgi://10.0.10.12:9001/status"
+  ##
+  ## Example of multiple gathering from local socket and remove host
+  ## urls = ["http://192.168.1.20/status", "/tmp/fpm.sock"]
+  urls = ["http://localhost/status"]
 ```
 
-When run with:
+When using `unixsocket`, you have to ensure that telegraf runs on same
+host, and socket path is accessible to telegraf user.
 
-```
-./telegraf --config telegraf.conf --input-filter phpfpm --test
-```
+### Metrics:
 
-It produces:
+- phpfpm
+  - tags:
+    - pool
+    - url
+  - fields:
+    - accepted_conn
+    - listen_queue
+    - max_listen_queue
+    - listen_queue_len
+    - idle_processes
+    - active_processes
+    - total_processes
+    - max_active_processes
+    - max_children_reached
+    - slow_requests
+
+# Example Output
 
 ```
-* Plugin: phpfpm, Collection 1
-> phpfpm,pool=www accepted_conn=13i,active_processes=2i,idle_processes=1i,listen_queue=0i,listen_queue_len=0i,max_active_processes=2i,max_children_reached=0i,max_listen_queue=0i,slow_requests=0i,total_processes=3i 1453011293083331187
-> phpfpm,pool=www2 accepted_conn=12i,active_processes=1i,idle_processes=2i,listen_queue=0i,listen_queue_len=0i,max_active_processes=2i,max_children_reached=0i,max_listen_queue=0i,slow_requests=0i,total_processes=3i 1453011293083691422
-> phpfpm,pool=www3 accepted_conn=11i,active_processes=1i,idle_processes=2i,listen_queue=0i,listen_queue_len=0i,max_active_processes=2i,max_children_reached=0i,max_listen_queue=0i,slow_requests=0i,total_processes=3i 1453011293083691658
+phpfpm,pool=www accepted_conn=13i,active_processes=2i,idle_processes=1i,listen_queue=0i,listen_queue_len=0i,max_active_processes=2i,max_children_reached=0i,max_listen_queue=0i,slow_requests=0i,total_processes=3i 1453011293083331187
+phpfpm,pool=www2 accepted_conn=12i,active_processes=1i,idle_processes=2i,listen_queue=0i,listen_queue_len=0i,max_active_processes=2i,max_children_reached=0i,max_listen_queue=0i,slow_requests=0i,total_processes=3i 1453011293083691422
+phpfpm,pool=www3 accepted_conn=11i,active_processes=1i,idle_processes=2i,listen_queue=0i,listen_queue_len=0i,max_active_processes=2i,max_children_reached=0i,max_listen_queue=0i,slow_requests=0i,total_processes=3i 1453011293083691658
 ```
-
-## Note
-
-When using `unixsocket`, you have to ensure that telegraf runs on same
-host, and socket path is accessible to telegraf user.

plugins/inputs/phpfpm/phpfpm.go

@@ -148,11 +148,11 @@ func (g *phpfpm) gatherServer(addr string, acc telegraf.Accumulator) error {
 		return err
 	}
 
-	return g.gatherFcgi(fcgi, statusPath, acc)
+	return g.gatherFcgi(fcgi, statusPath, acc, addr)
 }
 
 // Gather stat using fcgi protocol
-func (g *phpfpm) gatherFcgi(fcgi *conn, statusPath string, acc telegraf.Accumulator) error {
+func (g *phpfpm) gatherFcgi(fcgi *conn, statusPath string, acc telegraf.Accumulator, addr string) error {
 	fpmOutput, fpmErr, err := fcgi.Request(map[string]string{
 		"SCRIPT_NAME":     "/" + statusPath,
 		"SCRIPT_FILENAME": statusPath,
@@ -164,7 +164,7 @@ func (g *phpfpm) gatherFcgi(fcgi *conn, statusPath string, acc telegraf.Accumula
 	}, "/"+statusPath)
 
 	if len(fpmErr) == 0 && err == nil {
-		importMetric(bytes.NewReader(fpmOutput), acc)
+		importMetric(bytes.NewReader(fpmOutput), acc, addr)
 		return nil
 	} else {
 		return fmt.Errorf("Unable parse phpfpm status. Error: %v %v", string(fpmErr), err)
@@ -192,12 +192,12 @@ func (g *phpfpm) gatherHttp(addr string, acc telegraf.Accumulator) error {
 			addr, err)
 	}
 
-	importMetric(res.Body, acc)
+	importMetric(res.Body, acc, addr)
 	return nil
 }
 
 // Import stat data into Telegraf system
-func importMetric(r io.Reader, acc telegraf.Accumulator) (poolStat, error) {
+func importMetric(r io.Reader, acc telegraf.Accumulator, addr string) (poolStat, error) {
 	stats := make(poolStat)
 	var currentPool string
 
@@ -240,6 +240,7 @@ func importMetric(r io.Reader, acc telegraf.Accumulator) (poolStat, error) {
 	for pool := range stats {
 		tags := map[string]string{
 			"pool": pool,
+			"url":  addr,
 		}
 		fields := make(map[string]interface{})
 		for k, v := range stats[pool] {

plugins/inputs/phpfpm/phpfpm_test.go

@@ -40,6 +40,7 @@ func TestPhpFpmGeneratesMetrics_From_Http(t *testing.T) {
 
 	tags := map[string]string{
 		"pool": "www",
+		"url":  ts.URL,
 	}
 
 	fields := map[string]interface{}{
@@ -80,6 +81,7 @@ func TestPhpFpmGeneratesMetrics_From_Fcgi(t *testing.T) {
 
 	tags := map[string]string{
 		"pool": "www",
+		"url":  r.Urls[0],
 	}
 
 	fields := map[string]interface{}{
@@ -124,6 +126,7 @@ func TestPhpFpmGeneratesMetrics_From_Socket(t *testing.T) {
 
 	tags := map[string]string{
 		"pool": "www",
+		"url":  r.Urls[0],
 	}
 
 	fields := map[string]interface{}{
@@ -168,6 +171,7 @@ func TestPhpFpmGeneratesMetrics_From_Socket_Custom_Status_Path(t *testing.T) {
 
 	tags := map[string]string{
 		"pool": "www",
+		"url":  r.Urls[0],
 	}
 
 	fields := map[string]interface{}{