Update Dockerfile

Dockerfile

@@ -1,16 +1,22 @@
-# 使用 Prometheus 官方镜像
-FROM prom/prometheus:v2.43.0
+# 使用 Ubuntu 作为基础镜像
+FROM ubuntu:20.04
 
-# 设置 Prometheus 配置文件和数据存储路径
-COPY prometheus.yml /etc/prometheus/prometheus.yml
-VOLUME ["/prometheus"]
+# 安装必要的软件
+RUN apt-get update && apt-get install -y wget
+
+# 下载 Prometheus
+RUN wget https://github.com/prometheus/prometheus/releases/download/v2.43.0/prometheus-2.43.0.linux-amd64.tar.gz && \
+    tar -xvzf prometheus-2.43.0.linux-amd64.tar.gz && \
+    rm prometheus-2.43.0.linux-amd64.tar.gz
+
+# 将 Prometheus 配置文件复制到容器中
+COPY prometheus.yml /prometheus/prometheus.yml
 
 # 设置工作目录
-WORKDIR /etc/prometheus
+WORKDIR /prometheus/prometheus-2.43.0.linux-amd64
 
-# 曝露 Prometheus 默认端口
+# 暴露 Prometheus 默认端口
 EXPOSE 9090
 
 # 启动 Prometheus
-ENTRYPOINT ["/bin/prometheus"]
-CMD ["--config.file=/etc/prometheus/prometheus.yml", "--storage.tsdb.path=/prometheus"]
+CMD ["./prometheus", "--config.file=/prometheus/prometheus.yml", "--storage.tsdb.path=/prometheus"]