[docker-syncd-invm]: use service dependency in supervisord to start services

platform/innovium/docker-syncd-invm/Dockerfile.j2

@@ -24,7 +24,6 @@ RUN dpkg -i \
 debs/{{ deb }}{{' '}}
 {%- endfor %}
 
-COPY ["start.sh", "/usr/bin/"]
 COPY ["supervisord.conf", "/etc/supervisor/conf.d/"]
 
 ## Clean up

platform/innovium/docker-syncd-invm/start.sh

@@ -1,7 +0,0 @@
-#!/usr/bin/env bash
-
-rm -f /var/run/rsyslogd.pid
-
-supervisorctl start rsyslogd
-
-supervisorctl start syncd

platform/innovium/docker-syncd-invm/supervisord.conf

@@ -3,26 +3,29 @@ logfile_maxbytes=1MB
 logfile_backups=2
 nodaemon=true
 
-[program:start.sh]
-command=/usr/bin/start.sh
-priority=1
+[eventlistener:dependent-startup]
+command=python -m supervisord_dependent_startup
 autostart=true
+autorestart=unexpected
+startretries=0
+exitcodes=0,3
+events=PROCESS_STATE
+
+[program:rsyslogd]
+command=/usr/sbin/rsyslogd -n -iNONE
+priority=1
+autostart=false
 autorestart=false
 stdout_logfile=syslog
 stderr_logfile=syslog
+dependent_startup=true
 
-[program:rsyslogd]
-command=/usr/sbin/rsyslogd -n
+[program:syncd]
+command=/usr/bin/syncd_start.sh
 priority=2
 autostart=false
 autorestart=false
 stdout_logfile=syslog
 stderr_logfile=syslog
-
-[program:syncd]
-command=/usr/bin/syncd_start.sh
-priority=3
-autostart=false
-autorestart=false
-stdout_logfile=syslog
-stderr_logfile=syslog
+dependent_startup=true
+dependent_startup_wait_for=rsyslogd:running