[优化]etcd、node-exporter、prometheus的dockerfile部署优化

docker/etcd/Dockerfile

@@ -1,13 +1,28 @@
 FROM openeuler/openeuler:24.03
 
+# 根据平台执行不同的安装步骤
+RUN architecture=$(uname -m); \
+    if [ "$architecture" = "aarch64" ]; then \
+        echo "install ARM64 ETCD"; \
+    elif [ "$architecture" = "x86_64" ]; then \
+        echo "install x86_64 ETCD"; \
+    else \
+        echo "platform [$architecture] not support"; \
+        exit 1; \
+    fi
+
+# 安装和清理
 RUN dnf update -y \
     && dnf install etcd -y \
     && dnf clean all \
     && rm -rf /var/cache/dnf/*
 
+# 设置环境变量
 ENV ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379" \
-ETCD_ADVERTISE_CLIENT_URLS="http://127.0.0.1:2379"
+    ETCD_ADVERTISE_CLIENT_URLS="http://127.0.0.1:2379"
 
+# 暴露端口
 EXPOSE 2379 2380
 
-CMD ["etcd"]
+# 运行 etcd
+CMD ["etcd"]