updates naming for built in config services, broke out current example script to examples dir, broke out config service manager to separate file

daemon/core/configservices/serviceutils/services.py

@@ -0,0 +1,58 @@
+import netaddr
+
+from core import utils
+from core.config import Configuration
+from core.configservice.base import ConfigService, ConfigServiceMode
+from core.emulator.enumerations import ConfigDataTypes
+
+GROUP_NAME = "Utility"
+
+
+class DefaultRoute(ConfigService):
+    name = "DefaultRoute"
+    group = GROUP_NAME
+    directories = []
+    executables = ["ip"]
+    dependencies = []
+    startup = ["sh defaultroute.sh"]
+    validate = []
+    shutdown = []
+    validation_mode = ConfigServiceMode.BLOCKING
+    default_configs = [
+        Configuration(_id="value1", _type=ConfigDataTypes.STRING, label="Value 1"),
+        Configuration(_id="value2", _type=ConfigDataTypes.STRING, label="Value 2"),
+        Configuration(_id="value3", _type=ConfigDataTypes.STRING, label="Value 3"),
+    ]
+
+    def create_files(self):
+        addresses = []
+        for netif in self.node.netifs():
+            if getattr(netif, "control", False):
+                continue
+            for addr in netif.addrlist:
+                net = netaddr.IPNetwork(addr)
+                if net[1] != net[-2]:
+                    addresses.append(net[1])
+        data = dict(addresses=addresses)
+        self.render("defaultroute.sh", data)
+
+
+class IpForwardService(ConfigService):
+    name = "IPForward"
+    group = GROUP_NAME
+    directories = []
+    executables = ["sysctl"]
+    dependencies = []
+    startup = ["sh ipforward.sh"]
+    validate = []
+    shutdown = []
+    validation_mode = ConfigServiceMode.BLOCKING
+    default_configs = []
+
+    def create_files(self) -> None:
+        devnames = []
+        for ifc in self.node.netifs():
+            devname = utils.sysctl_devname(ifc.name)
+            devnames.append(devname)
+        data = dict(devnames=devnames)
+        self.render("ipforward.sh", data)