Don't create networks if neutron is not enabled

With the composable undercloud installer, it's possible to disable
services.  The extraconfig script assumes both, neutron and nova, are
installed and fails if they aren't.

This patch checks if those services are available before.

Change-Id: Idcc2b9809fcfa92649a0a1f45175ce417dc0e608

1 files changed, 49 insertions, 45 deletions

diff --git a/extraconfig/post_deploy/undercloud_post.sh b/extraconfig/post_deploy/undercloud_post.sh
index 8bcae1d3..3c508d11 100755
--- a/extraconfig/post_deploy/undercloud_post.sh
+++ b/extraconfig/post_deploy/undercloud_post.sh
@@ -45,57 +45,61 @@ if ! grep "$(cat /root/.ssh/id_rsa.pub)" /root/.ssh/authorized_keys; then
     cat /root/.ssh/id_rsa.pub >> /root/.ssh/authorized_keys
 fi
 
-PHYSICAL_NETWORK=ctlplane
-
-ctlplane_id=$(openstack network list -f csv -c ID -c Name --quote none | tail -n +2 | grep ctlplane | cut -d, -f1)
-subnet_ids=$(openstack subnet list -f csv -c ID --quote none | tail -n +2)
-subnet_id=
+if [ "$(hiera neutron_api_enabled)" = "true" ]; then
+    PHYSICAL_NETWORK=ctlplane
+
+    ctlplane_id=$(openstack network list -f csv -c ID -c Name --quote none | tail -n +2 | grep ctlplane | cut -d, -f1)
+    subnet_ids=$(openstack subnet list -f csv -c ID --quote none | tail -n +2)
+    subnet_id=
+
+    for subnet_id in $subnet_ids; do
+        network_id=$(openstack subnet show -f value -c network_id $subnet_id)
+        if [ "$network_id" = "$ctlplane_id" ]; then
+            break
+        fi
+    done
 
-for subnet_id in $subnet_ids; do
-    network_id=$(openstack subnet show -f value -c network_id $subnet_id)
-    if [ "$network_id" = "$ctlplane_id" ]; then
-        break
-    fi
-done
-
-net_create=1
-if [ -n "$subnet_id" ]; then
-    cidr=$(openstack subnet show $subnet_id -f value -c cidr)
-    if [ "$cidr" = "$undercloud_network_cidr" ]; then
-        net_create=0
-    else
-        echo "New cidr $undercloud_network_cidr does not equal old cidr $cidr"
-        echo "Will attempt to delete and recreate subnet $subnet_id"
+    net_create=1
+    if [ -n "$subnet_id" ]; then
+        cidr=$(openstack subnet show $subnet_id -f value -c cidr)
+        if [ "$cidr" = "$undercloud_network_cidr" ]; then
+            net_create=0
+        else
+            echo "New cidr $undercloud_network_cidr does not equal old cidr $cidr"
+            echo "Will attempt to delete and recreate subnet $subnet_id"
+        fi
     fi
-fi
 
-if [ "$net_create" -eq "1" ]; then
-    # Delete the subnet and network to make sure it doesn't already exist
-    if openstack subnet list | grep start; then
-        openstack subnet delete $(openstack subnet list | grep start | awk '{print $4}')
-    fi
-    if openstack network show ctlplane; then
-        openstack network delete ctlplane
+    if [ "$net_create" -eq "1" ]; then
+        # Delete the subnet and network to make sure it doesn't already exist
+        if openstack subnet list | grep start; then
+            openstack subnet delete $(openstack subnet list | grep start | awk '{print $4}')
+        fi
+        if openstack network show ctlplane; then
+            openstack network delete ctlplane
+        fi
+
+
+        NETWORK_ID=$(openstack network create --provider-network-type=flat --provider-physical-network=ctlplane ctlplane | grep " id " | awk '{print $4}')
+
+        NAMESERVER_ARG=""
+        if [ -n "${undercloud_nameserver:-}" ]; then
+            NAMESERVER_ARG="--dns-nameserver $undercloud_nameserver"
+        fi
+
+        openstack subnet create --network=$NETWORK_ID \
+            --gateway=$undercloud_network_gateway \
+            --subnet-range=$undercloud_network_cidr \
+            --allocation-pool start=$undercloud_dhcp_start,end=$undercloud_dhcp_end \
+            --host-route destination=169.254.169.254/32,gateway=$local_ip \
+            $NAMESERVER_ARG ctlplane
     fi
-
-
-    NETWORK_ID=$(openstack network create --provider-network-type=flat --provider-physical-network=ctlplane ctlplane | grep " id " | awk '{print $4}')
-
-    NAMESERVER_ARG=""
-    if [ -n "${undercloud_nameserver:-}" ]; then
-        NAMESERVER_ARG="--dns-nameserver $undercloud_nameserver"
-    fi
-
-    openstack subnet create --network=$NETWORK_ID \
-        --gateway=$undercloud_network_gateway \
-        --subnet-range=$undercloud_network_cidr \
-        --allocation-pool start=$undercloud_dhcp_start,end=$undercloud_dhcp_end \
-        --host-route destination=169.254.169.254/32,gateway=$local_ip \
-        $NAMESERVER_ARG ctlplane
 fi
 
-# Disable nova quotas
-openstack quota set --cores -1 --instances -1 --ram -1 $(openstack project show admin | awk '$2=="id" {print $4}')
+if [ "$(hiera nova_api_enabled)" = "true" ]; then
+    # Disable nova quotas
+    openstack quota set --cores -1 --instances -1 --ram -1 $(openstack project show admin | awk '$2=="id" {print $4}')
+fi
 
 # MISTRAL WORKFLOW CONFIGURATION
 if [ "$(hiera mistral_api_enabled)" = "true" ]; then