sonic-buildimage/files/build_templates/per_namespace/swss.service.j2

[Unit]
Description=switch state service
Requires=database{% if multi_instance == 'true' %}@%i{% endif %}.service
After=database{% if multi_instance == 'true' %}@%i{% endif %}.service
{% if multi_instance == 'true' and sonic_asic_platform == 'vs' %}
Requires=topology.service
After=topology.service
{% endif %}
{% if sonic_asic_platform == 'broadcom' %}
Requires=opennsl-modules.service
{% endif %}
Requires=updategraph.service
After=updategraph.service
After=interfaces-config.service
BindsTo=sonic.target
After=sonic.target
Before=ntp-config.service
StartLimitIntervalSec=1200
StartLimitBurst=3

[Service]
User=root
Environment=sonic_asic_platform={{ sonic_asic_platform }}
ExecStartPre=/usr/local/bin/swss.sh start{% if multi_instance == 'true' %} %i{% endif %}
ExecStart=/usr/local/bin/swss.sh wait{% if multi_instance == 'true' %} %i{% endif %}
ExecStop=/usr/local/bin/swss.sh stop{% if multi_instance == 'true' %} %i{% endif %}
RestartSec=30

[Install]
WantedBy=sonic.target