xenapi - cleanup network configuration
The Xenserver/XCP part of devstack was configuring the hypervisor's
connectivity to the outer world, by adding VLANs, and physical
interfaces to the virtual networks. It added a lot of complexity, and
made it hard to get started with XenServer. This patch removes that
extra complexity, so it is left as an exercise for the user.
Related to blueprint blueprint xenapi-devstack-cleanup
Change-Id: If3367335c3da8621d0afe1f6cae77511fbdbb3e2
diff --git a/tools/xen/functions b/tools/xen/functions
index 26ddb8b..c6e484d 100644
--- a/tools/xen/functions
+++ b/tools/xen/functions
@@ -93,3 +93,84 @@
fi
done
}
+
+function _create_new_network() {
+ local name_label
+ name_label=$1
+
+ xe network-create name-label="$name_label"
+}
+
+function _multiple_networks_with_name() {
+ local name_label
+ name_label=$1
+
+ # A comma indicates multiple matches
+ xe network-list name-label="$name_label" --minimal | grep -q ","
+}
+
+function _network_exists() {
+ local name_label
+ name_label=$1
+
+ ! [ -z $(xe network-list name-label="$name_label" --minimal) ]
+}
+
+function _bridge_exists() {
+ local bridge
+ bridge=$1
+
+ ! [ -z $(xe network-list bridge="$bridge" --minimal) ]
+}
+
+
+function setup_network() {
+ local bridge_or_net_name
+ bridge_or_net_name=$1
+
+ if ! _bridge_exists "$bridge_or_net_name"; then
+ if _network_exists "$bridge_or_net_name"; then
+ if _multiple_networks_with_name "$bridge_or_net_name"; then
+ cat >&2 << EOF
+ERROR: Multiple networks found matching name-label to "$bridge_or_net_name"
+please review your XenServer network configuration / localrc file.
+EOF
+ exit 1
+ fi
+ else
+ _create_new_network "$bridge_or_net_name"
+ fi
+ fi
+}
+
+function bridge_for() {
+ local bridge_or_net_name
+ bridge_or_net_name=$1
+
+ if _bridge_exists "$bridge_or_net_name"; then
+ echo "$bridge_or_net_name"
+ else
+ xe network-list name-label="$bridge_or_net_name" params=bridge --minimal
+ fi
+}
+
+function xenapi_ip_on() {
+ local bridge_or_net_name
+ bridge_or_net_name=$1
+
+ ifconfig $(bridge_for "$bridge_or_net_name") | grep "inet addr" | cut -d ":" -f2 | sed "s/ .*//"
+}
+
+function xenapi_is_listening_on() {
+ local bridge_or_net_name
+ bridge_or_net_name=$1
+
+ ! [ -z $(xenapi_ip_on "$bridge_or_net_name") ]
+}
+
+function parameter_is_specified() {
+ local parameter_name
+ parameter_name=$1
+
+ compgen -v | grep "$parameter_name"
+}