[swss]: Start counter from swss container (#1875)

* sonic-quagga update. Don't spam with 'Vtysh connected from' message

* Enable counters inside swss container. systemd is not flexible enough to follow our business rules

Author: pavel-shirshov

dockers/docker-orchagent/Dockerfile.j2

@@ -30,6 +30,7 @@ RUN apt-get clean -y; apt-get autoclean -y; apt-get autoremove -y
 RUN rm -rf /debs
 
 COPY ["files/arp_update", "/usr/bin"]
+COPY ["enable_counters.py", "/usr/bin"]
 COPY ["start.sh", "orchagent.sh", "swssconfig.sh", "/usr/bin/"]
 COPY ["supervisord.conf", "/etc/supervisor/conf.d/"]
 

dockers/docker-orchagent/enable_counters.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python
+
+import swsssdk
+import time
+
+def enable_counter_group(db, name):
+    info = {}
+    info['FLEX_COUNTER_STATUS'] = 'enable'
+    db.mod_entry("FLEX_COUNTER_TABLE", name, info)
+
+def enable_counters():
+    db = swsssdk.ConfigDBConnector()
+    db.connect()
+    enable_counter_group(db, 'PORT')
+    enable_counter_group(db, 'QUEUE')
+    enable_counter_group(db, 'PFCWD')
+
+def get_uptime():
+    with open('/proc/uptime') as fp:
+        return float(fp.read().split(' ')[0])
+
+def main():
+    # If the switch was just started (uptime less than 5 minutes),
+    # wait for 3 minutes and enable counters
+    # otherwise wait for 60 seconds and enable counters
+    uptime = get_uptime()
+    if uptime < 300:
+        time.sleep(180)
+    else:
+        time.sleep(60)
+    enable_counters()
+
+if __name__ == '__main__':
+    main()

dockers/docker-orchagent/start.sh

@@ -28,6 +28,8 @@ supervisorctl start intfmgrd
 
 supervisorctl start buffermgrd
 
+supervisorctl start enable_counters
+
 # Start arp_update when VLAN exists
 VLAN=`sonic-cfggen -d -v 'VLAN.keys() | join(" ") if VLAN'`
 if [ "$VLAN" != "" ]; then

dockers/docker-orchagent/supervisord.conf

@@ -91,3 +91,11 @@ autostart=false
 autorestart=false
 stdout_logfile=syslog
 stderr_logfile=syslog
+
+[program:enable_counters]
+command=/usr/bin/enable_counters.py
+priority=11
+autostart=false
+autorestart=false
+stdout_logfile=syslog
+stderr_logfile=syslog

files/build_templates/enable_counters.service

@@ -1,7 +1,7 @@
 [Unit]
 Description=SNMP container
-Requires=updategraph.service swss.service enable_counters.service
-After=updategraph.service swss.service enable_counters.service
+Requires=updategraph.service swss.service
+After=updategraph.service swss.service
 
 [Service]
 ExecStartPre=/usr/bin/{{docker_container_name}}.sh start

files/build_templates/enable_counters.timer

@@ -285,10 +285,7 @@ sudo LANG=C chroot $FILESYSTEM_ROOT umount -lf /sys
 
 # Copy systemd timer configuration
 # It implements delayed start of services
-sudo cp $BUILD_TEMPLATES/enable_counters.timer $FILESYSTEM_ROOT/etc/systemd/system/
-sudo cp $BUILD_TEMPLATES/enable_counters.service $FILESYSTEM_ROOT/etc/systemd/system/
 sudo cp $BUILD_TEMPLATES/snmp.timer $FILESYSTEM_ROOT/etc/systemd/system/
-sudo LANG=C chroot $FILESYSTEM_ROOT systemctl enable enable_counters.timer
 sudo LANG=C chroot $FILESYSTEM_ROOT systemctl enable snmp.timer
 
 sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get remove -y python-dev