fix(installer): add insecure-registry (#2258)

Author: Leo Ryu

Diff for: build/docker/tools/tke-installer/dockerd-entrypoint.sh

@@ -139,13 +139,15 @@ if [ "$#" -eq 0 ] || [ "${1#-}" != "$1" ]; then
 			--tlscacert "$DOCKER_TLS_CERTDIR/server/ca.pem" \
 			--tlscert "$DOCKER_TLS_CERTDIR/server/cert.pem" \
 			--tlskey "$DOCKER_TLS_CERTDIR/server/key.pem" \
+			--insecure-registry=registry.tke.com \
 			"$@"
 		DOCKERD_ROOTLESS_ROOTLESSKIT_FLAGS="${DOCKERD_ROOTLESS_ROOTLESSKIT_FLAGS:-} -p 0.0.0.0:2376:2376/tcp"
 	else
 		# TLS disabled (-e DOCKER_TLS_CERTDIR='') or missing certs
 		set -- dockerd \
 			--host="$dockerSocket" \
 			--host=tcp://0.0.0.0:2375 \
+			--insecure-registry=registry.tke.com \
 			"$@"
 		DOCKERD_ROOTLESS_ROOTLESSKIT_FLAGS="${DOCKERD_ROOTLESS_ROOTLESSKIT_FLAGS:-} -p 0.0.0.0:2375:2375/tcp"
 	fi