create init_cfg.json.j2 template for vs

Signed-off-by: Stepan Blyschak <[email protected]>

platform/vs/docker-sonic-vs/Dockerfile.j2

@@ -168,6 +168,7 @@ COPY ["files/sonic_version.yml", "/etc/sonic/"]
 COPY ["port_breakout_config_db.json", "/etc/sonic/"]
 COPY ["database_config.json", "/etc/default/sonic-db/"]
 COPY ["hostname.j2", "/usr/share/sonic/templates/"]
+COPY ["init_cfg.json.j2", "/usr/share/sonic/templates/"]
 COPY ["default_chassis_cfg.json", "/etc/default/sonic-db/"]
 COPY ["asic_table.json", "/etc/sonic/"]
 COPY ["buffermgrd.sh", "/usr/bin/"]

platform/vs/docker-sonic-vs/init_cfg.json.j2

@@ -0,0 +1,17 @@
+{
+    "DEVICE_METADATA": {
+        "localhost": {
+            "mac": "{{ system_mac }}",
+            "buffer_model": "traditional"
+        }
+    },
+{% set features = ["swss", "bgp", "teamd", "nat", "database"] %}
+    "FEATURE": {
+{% for feature in features %}
+        "{{ feature }}": {
+            "state": "enabled"
+        }{% if not loop.last %},{% endif %}
+{% endfor %}
+    }
+}
+

platform/vs/docker-sonic-vs/start.sh

@@ -37,31 +37,7 @@ mkdir -p /var/run/redis/sonic-db
 cp /etc/default/sonic-db/database_config.json /var/run/redis/sonic-db/
 
 SYSTEM_MAC_ADDRESS=$(ip link show eth0 | grep ether | awk '{print $2}')
-cat <<EOF > /tmp/init_cfg.json
-{
-    "DEVICE_METADATA": {
-        "localhost": {
-            "mac": "$SYSTEM_MAC_ADDRESS",
-            "buffer_model": "traditional"
-        }
-    },
-    "FEATURE": {
-        "swss": {
-            "state": "enabled"
-        },
-        "bgp": {
-            "state": "enabled"
-        },
-        "teamd": {
-            "state": "enabled"
-        },
-        "nat": {
-            "state": "enabled"
-        }
-    }
-}
-EOF
-sonic-cfggen -j /tmp/init_cfg.json $CHASS_CFG --print-data > /etc/sonic/init_cfg.json
+sonic-cfggen -t /usr/share/sonic/templates/init_cfg.json.j2 -a '{"system_mac": "$SYSTEM_MAC_ADDRESS"}' $CHASS_CFG > /etc/sonic/init_cfg.json
 
 if [ -f /etc/sonic/config_db.json ]; then
     sonic-cfggen -j /etc/sonic/init_cfg.json -j /etc/sonic/config_db.json --print-data > /tmp/config_db.json