Merge pull request #20281 from cilium-team/fixing-docker-d

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docs/getting-started-guides/docker-multinode/worker.sh

@@ -64,7 +64,7 @@ detect_lsb() {
         *64)
             ;;
         *)
-	        echo "Error: We currently only support 64-bit platforms."	    
+	        echo "Error: We currently only support 64-bit platforms."
 	        exit 1
 	        ;;
     esac
@@ -100,7 +100,15 @@ detect_lsb() {
 
 # Start the bootstrap daemon
 bootstrap_daemon() {
-    docker -d \
+    # Detecting docker version so we could run proper docker_daemon command
+    [[ $(eval "docker --version") =~ ([0-9][.][0-9][.][0-9]*) ]] && version="${BASH_REMATCH[1]}"
+    local got=$(echo -e "${version}\n1.8.0" | sed '/^$/d' | sort -nr | head -1)
+    if [[ "${got}" = "${version}" ]]; then
+        docker_daemon="docker -d"
+    else
+        docker_daemon="docker daemon"
+    fi
+    ${docker_daemon} \
         -H unix:///var/run/docker-bootstrap.sock \
         -p /var/run/docker-bootstrap.pid \
         --iptables=false \
@@ -175,7 +183,7 @@ start_k8s() {
 
     # sleep a little bit
     sleep 5
-    
+
     # Start kubelet & proxy in container
     # TODO: Use secure port for communication
     docker run \
@@ -199,7 +207,7 @@ start_k8s() {
             --cluster-domain=cluster.local \
             --containerized \
             --v=2
-    
+
     docker run \
         -d \
         --net=host \