dont crash if param is not set in config.json

src/lxc/lxc.py

@@ -16,31 +16,31 @@ class LXC(LinuxMachine):
         self.lxc_hostname = lxc_hostname
 
         self.os = os
-        self.os_name = os["name"]
-        self.os_release = os["release"]
+        self.os_name = os.get("name")
+        self.os_release = os.get("release")
 
         self.resources = resources
-        self.cpu = resources["cpu"]
-        self.memory = resources["memory"]
-        self.swap = resources["swap"]
-        self.disk = resources["disk"]
-        self.storage = resources["storage"]
+        self.cpu = resources.get("cpu")
+        self.memory = resources.get("memory")
+        self.swap = resources.get("swap")
+        self.disk = resources.get("disk")
+        self.storage = resources.get("storage")
 
         self.network = network
-        self.bridge = network["bridge"]
-        self.ipv4 = network["ipv4"]
+        self.bridge = network.get("bridge")
+        self.ipv4 = network.get("ip")
         self.ipv4_netmask = 0
-        self.ipv6 = network["ipv6"]
-        self.mac = network["mac"]
-        self.gateway4 = network["gateway4"]
-        self.gateway6 = network["gateway6"]
-        self.vlan = network["vlan"]
+        self.ipv6 = network.get("ip6")
+        self.mac = network.get("hwaddr")
+        self.gateway4 = network.get("gw")
+        self.gateway6 = network.get("gw6")
+        self.vlan = network.get("trunks")
 
         self.options = options
-        self.privileged = options["privileged"]
-        self.start_on_boot = options["start_on_boot"]
-        self.startup_order = options["startup_order"]
-        self.password = options["password"]
+        self.privileged = options.get("privileged")
+        self.start_on_boot = options.get("start_on_boot")
+        self.startup_order = options.get("startup_order")
+        self.password = options.get("password")
 
         self.creation = creation
         self.deploy = deploy