[修改]调整了Prometheus与opcua exporter的dockerfile路径，修正了confd模版

opcua-exporter/Dockerfile

@@ -47,6 +47,10 @@ RUN dnf update -y && \
 RUN curl -fsSL https://github.com/abtreece/confd/releases/download/v0.20.0/confd-v0.20.0-linux-amd64.tar.gz | tar -xz -C /usr/local/bin && \
     chmod +x /usr/local/bin/confd
 
+RUN mkdir /etc/opcua
+
+COPY ./confd/ /etc/confd/
+
 COPY ./supervisord/ /etc/supervisord/
 
 COPY --from=build /app/build/opcua_exporter /usr/local/bin