[add]docker-compose & etcd dockerfile

docker-compose.yml

@@ -0,0 +1,6 @@
+services:
+  etcd:
+    build: docker/etcd
+    ports:
+      - 2379:2379
+      - 2380:2370

docker/etcd/Dockerfile

@@ -0,0 +1,13 @@
+FROM openeuler/openeuler:24.03
+
+RUN dnf update -y \
+    && dnf install etcd -y \
+    && dnf clean all \
+    && rm -rf /var/cache/dnf/*
+
+ENV ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379" \
+ETCD_ADVERTISE_CLIENT_URLS="http://127.0.0.1:2379"
+
+EXPOSE 2379 2380
+
+CMD ["etcd"]