sonic-buildimage/files/image_config/resolv-config/resolv-config.service

[Unit]
Description=Update DNS configuration
Requires=updategraph.service
After=updategraph.service
BindsTo=sonic.target
After=sonic.target
StartLimitIntervalSec=0

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/bin/resolv-config.sh start

[Install]
WantedBy=sonic.target
[dns] Add support for static DNS configuration. (#14549) - Why I did it Add support for static DNS configuration. According to sonic-net/SONiC#1262 HLD. - How I did it Add a new resolv-config.service that is responsible for transferring configuration from Config DB into /etc/resolv.conf file that is consumed by various subsystems in Linux to resolve domain names into IP addresses. - How to verify it Run the image compilation. Each component related to the static DNS feature is covered with the unit tests. Run sonic-mgmt tests. Static DNS feature will be covered with the system tests. Install the image and run manual tests. 2023-06-22 11:12:30 -05:00			`[Unit]`
			`Description=Update DNS configuration`
			`Requires=updategraph.service`
			`After=updategraph.service`
			`BindsTo=sonic.target`
			`After=sonic.target`
			`StartLimitIntervalSec=0`

			`[Service]`
			`Type=oneshot`
			`RemainAfterExit=yes`
			`ExecStart=/usr/bin/resolv-config.sh start`

			`[Install]`
			`WantedBy=sonic.target`