[BugFix: ZSTACK-33873] ingore arm/mips cd-ram monitoring data

Author: jintao.chen

kvmagent/kvmagent/plugins/prometheus.py

@@ -345,6 +345,7 @@ def start_prometheus_exporter(self, req):
         @in_bash
         def start_collectd(cmd):
             conf_path = os.path.join(os.path.dirname(cmd.binaryPath), 'collectd.conf')
+            ingore_block_device = "/:sd[c-e]/" if kvmagent.os_arch in ["mips64el", "aarch64"] else "//"
 
             conf = '''Interval {{INTERVAL}}
 # version {{VERSION}}
@@ -410,6 +411,7 @@ def start_collectd(cmd):
 	HostnameFormat name
     PluginInstanceFormat name
     BlockDevice "/:hd[a-z]/"
+    BlockDevice "{{IGNORE}}"
     IgnoreSelected true
     ExtraStats "vcpu memory"
 </Plugin>
@@ -425,6 +427,7 @@ def start_collectd(cmd):
                 'INTERVAL': cmd.interval,
                 'INTERFACES': interfaces,
                 'VERSION': cmd.version,
+                'IGNORE': ingore_block_device
             })
 
             need_restart_collectd = False