addons: elasticsearch supports automatically setting the advertise address

cluster/addons/fluentd-elasticsearch/es-image/Dockerfile

@@ -17,7 +17,7 @@ COPY elasticsearch_logging_discovery.go go.mod go.sum /
 RUN CGO_ENABLED=0 GOOS=linux GO111MODULE=on go build -a -ldflags "-w" -o /elasticsearch_logging_discovery /elasticsearch_logging_discovery.go
 
 
-FROM docker.elastic.co/elasticsearch/elasticsearch-oss:7.3.2
+FROM docker.elastic.co/elasticsearch/elasticsearch-oss:7.4.2
 
 VOLUME ["/data"]
 EXPOSE 9200 9300

cluster/addons/fluentd-elasticsearch/es-image/Makefile

@@ -16,7 +16,7 @@
 
 PREFIX = quay.io/fluentd_elasticsearch
 IMAGE = elasticsearch
-TAG = v7.3.2
+TAG = v7.4.2
 
 build:
 	docker build --tag ${PREFIX}/${IMAGE}:${TAG} .

cluster/addons/fluentd-elasticsearch/es-image/config/elasticsearch.yml

@@ -9,4 +9,3 @@ http.port: ${HTTP_PORT}
 
 path.data: /data
 
-network.host: 0.0.0.0

cluster/addons/fluentd-elasticsearch/es-image/elasticsearch_logging_discovery.go

@@ -19,6 +19,7 @@ package main
 import (
 	"flag"
 	"fmt"
+	"net"
 	"os"
 	"strconv"
 	"strings"
@@ -63,11 +64,32 @@ func flattenSubsets(subsets []corev1.EndpointSubset) []string {
 	return ips
 }
 
+func getAdvertiseAddress() (string, error) {
+	addrs, err := net.InterfaceAddrs()
+	if err != nil {
+		return "", err
+	}
+
+	for _, addr := range addrs {
+		if ipnet, ok := addr.(*net.IPNet); ok && !ipnet.IP.IsLoopback() {
+			return ipnet.IP.String(), nil
+		}
+	}
+
+	return "", fmt.Errorf("no non-loopback address is available")
+}
+
 func main() {
 	flag.Parse()
 
 	klog.Info("Kubernetes Elasticsearch logging discovery")
 
+	advertiseAddress, err := getAdvertiseAddress()
+	if err != nil {
+		klog.Fatalf("Failed to get valid advertise address: %v", err)
+	}
+	fmt.Printf("network.host: \"%s\"\n\n", advertiseAddress)
+
 	cc, err := buildConfigFromEnvs(os.Getenv("APISERVER_HOST"), os.Getenv("KUBE_CONFIG_FILE"))
 	if err != nil {
 		klog.Fatalf("Failed to make client: %v", err)

cluster/addons/fluentd-elasticsearch/es-statefulset.yaml

@@ -51,7 +51,7 @@ metadata:
   namespace: kube-system
   labels:
     k8s-app: elasticsearch-logging
-    version: v7.3.2
+    version: v7.4.2
     addonmanager.kubernetes.io/mode: Reconcile
 spec:
   serviceName: elasticsearch-logging
@@ -59,16 +59,16 @@ spec:
   selector:
     matchLabels:
       k8s-app: elasticsearch-logging
-      version: v7.3.2
+      version: v7.4.2
   template:
     metadata:
       labels:
         k8s-app: elasticsearch-logging
-        version: v7.3.2
+        version: v7.4.2
     spec:
       serviceAccountName: elasticsearch-logging
       containers:
-      - image: quay.io/fluentd_elasticsearch/elasticsearch:v7.3.2
+      - image: quay.io/fluentd_elasticsearch/elasticsearch:v7.4.2
         name: elasticsearch-logging
         imagePullPolicy: Always
         resources: