add etcd

Docker/etcd/docker-compose.yml

@@ -0,0 +1,23 @@
+version: '2'
+
+services:
+  etcd:
+    image: docker.io/bitnami/etcd:3.5
+    restart: unless-stopped
+    container_name: etcd-server
+    environment:
+      - ALLOW_NONE_AUTHENTICATION=no
+      - ETCD_ADVERTISE_CLIENT_URLS=http://etcd-server:2379
+    ports:
+      - 2379:2379
+      - 2380:2380
+    volumes:
+      - ./data:/bitnami/etcd
+    networks:
+      nginx:
+        aliases:
+          - etcd-server
+
+networks:
+  nginx:
+    external: true