Adding upstream version 1.34.4.

Signed-off-by: Daniel Baumann <daniel@debian.org>

plugins/inputs/nginx_plus_api/nginx_plus_api.go

@@ -0,0 +1,116 @@
+//go:generate ../../../tools/readme_config_includer/generator
+package nginx_plus_api
+
+import (
+	_ "embed"
+	"fmt"
+	"net/http"
+	"net/url"
+	"sync"
+	"time"
+
+	"github.com/influxdata/telegraf"
+	"github.com/influxdata/telegraf/config"
+	"github.com/influxdata/telegraf/plugins/common/tls"
+	"github.com/influxdata/telegraf/plugins/inputs"
+)
+
+//go:embed sample.conf
+var sampleConfig string
+
+const (
+	// Default settings
+	defaultAPIVersion = 3
+
+	// Paths
+	processesPath   = "processes"
+	connectionsPath = "connections"
+	slabsPath       = "slabs"
+	sslPath         = "ssl"
+
+	httpRequestsPath      = "http/requests"
+	httpServerZonesPath   = "http/server_zones"
+	httpLocationZonesPath = "http/location_zones"
+	httpUpstreamsPath     = "http/upstreams"
+	httpCachesPath        = "http/caches"
+	httpLimitReqsPath     = "http/limit_reqs"
+	resolverZonesPath     = "resolvers"
+
+	streamServerZonesPath = "stream/server_zones"
+	streamUpstreamsPath   = "stream/upstreams"
+)
+
+type NginxPlusAPI struct {
+	Urls            []string        `toml:"urls"`
+	APIVersion      int64           `toml:"api_version"`
+	ResponseTimeout config.Duration `toml:"response_timeout"`
+	tls.ClientConfig
+
+	client *http.Client
+}
+
+func (*NginxPlusAPI) SampleConfig() string {
+	return sampleConfig
+}
+
+func (n *NginxPlusAPI) Gather(acc telegraf.Accumulator) error {
+	var wg sync.WaitGroup
+
+	// Create an HTTP client that is re-used for each
+	// collection interval
+
+	if n.APIVersion == 0 {
+		n.APIVersion = defaultAPIVersion
+	}
+
+	if n.client == nil {
+		client, err := n.createHTTPClient()
+		if err != nil {
+			return err
+		}
+		n.client = client
+	}
+
+	for _, u := range n.Urls {
+		addr, err := url.Parse(u)
+		if err != nil {
+			acc.AddError(fmt.Errorf("unable to parse address %q: %w", u, err))
+			continue
+		}
+
+		wg.Add(1)
+		go func(addr *url.URL) {
+			defer wg.Done()
+			n.gatherMetrics(addr, acc)
+		}(addr)
+	}
+
+	wg.Wait()
+	return nil
+}
+
+func (n *NginxPlusAPI) createHTTPClient() (*http.Client, error) {
+	if n.ResponseTimeout < config.Duration(time.Second) {
+		n.ResponseTimeout = config.Duration(time.Second * 5)
+	}
+
+	tlsConfig, err := n.ClientConfig.TLSConfig()
+	if err != nil {
+		return nil, err
+	}
+
+	client := &http.Client{
+		Transport: &http.Transport{
+			TLSClientConfig: tlsConfig,
+		},
+		Timeout: time.Duration(n.ResponseTimeout),
+	}
+
+	return client, nil
+}
+
+func init() {
+	inputs.Add("nginx_plus_api", func() telegraf.Input {
+		return &NginxPlusAPI{}
+	})
+}