Fix incorrect comparisions

The files changed in this commit had incorrect bash syntax in that they were
assigning variables (=) instead of checking if they were equal (==). The
incorrect checks were preventing the configuration of VLANs with the Neutron
ML2 plugin.

Change-Id: I4b54bb5c69cc836c22900bd7a966197e9c616076
diff --git a/lib/neutron_plugins/linuxbridge b/lib/neutron_plugins/linuxbridge
index 96b14f1..113a7df 100644
--- a/lib/neutron_plugins/linuxbridge
+++ b/lib/neutron_plugins/linuxbridge
@@ -15,7 +15,7 @@
 }
 
 function neutron_plugin_configure_service {
-    if [[ "$ENABLE_TENANT_VLANS" = "True" ]]; then
+    if [[ "$ENABLE_TENANT_VLANS" == "True" ]]; then
         iniset /$Q_PLUGIN_CONF_FILE vlans tenant_network_type vlan
     else
         echo "WARNING - The linuxbridge plugin is using local tenant networks, with no connectivity between hosts."
@@ -23,7 +23,7 @@
 
     # Override ``LB_VLAN_RANGES`` and ``LB_INTERFACE_MAPPINGS`` in ``localrc``
     # for more complex physical network configurations.
-    if [[ "$LB_VLAN_RANGES" = "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]]; then
+    if [[ "$LB_VLAN_RANGES" == "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]]; then
         LB_VLAN_RANGES=$PHYSICAL_NETWORK
         if [[ "$TENANT_VLAN_RANGE" != "" ]]; then
             LB_VLAN_RANGES=$LB_VLAN_RANGES:$TENANT_VLAN_RANGE
diff --git a/lib/neutron_plugins/linuxbridge_agent b/lib/neutron_plugins/linuxbridge_agent
index 74799e4..82b5fc9 100644
--- a/lib/neutron_plugins/linuxbridge_agent
+++ b/lib/neutron_plugins/linuxbridge_agent
@@ -35,7 +35,7 @@
     # Setup physical network interface mappings.  Override
     # ``LB_VLAN_RANGES`` and ``LB_INTERFACE_MAPPINGS`` in ``localrc`` for more
     # complex physical network configurations.
-    if [[ "$LB_INTERFACE_MAPPINGS" = "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]] && [[ "$LB_PHYSICAL_INTERFACE" != "" ]]; then
+    if [[ "$LB_INTERFACE_MAPPINGS" == "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]] && [[ "$LB_PHYSICAL_INTERFACE" != "" ]]; then
         LB_INTERFACE_MAPPINGS=$PHYSICAL_NETWORK:$LB_PHYSICAL_INTERFACE
     fi
     if [[ "$LB_INTERFACE_MAPPINGS" != "" ]]; then
diff --git a/lib/neutron_plugins/ml2 b/lib/neutron_plugins/ml2
index db43fcf..9966373 100644
--- a/lib/neutron_plugins/ml2
+++ b/lib/neutron_plugins/ml2
@@ -11,7 +11,7 @@
 # This has to be set here since the agent will set this in the config file
 if [[ "$Q_ML2_TENANT_NETWORK_TYPE" != "" ]]; then
     Q_AGENT_EXTRA_AGENT_OPTS+=(tunnel_types=$Q_ML2_TENANT_NETWORK_TYPE)
-elif [[ "$ENABLE_TENANT_TUNNELS" = "True" ]]; then
+elif [[ "$ENABLE_TENANT_TUNNELS" == "True" ]]; then
     Q_AGENT_EXTRA_AGENT_OPTS+=(tunnel_types=gre)
 fi
 
@@ -60,12 +60,12 @@
 function neutron_plugin_configure_service {
     if [[ "$Q_ML2_TENANT_NETWORK_TYPE" != "" ]]; then
         Q_SRV_EXTRA_OPTS+=(tenant_network_types=$Q_ML2_TENANT_NETWORK_TYPE)
-    elif [[ "$ENABLE_TENANT_TUNNELS" = "True" ]]; then
+    elif [[ "$ENABLE_TENANT_TUNNELS" == "True" ]]; then
         # This assumes you want a simple configuration, and will overwrite
         # Q_SRV_EXTRA_OPTS if set in addition to ENABLE_TENANT_TUNNELS.
         Q_SRV_EXTRA_OPTS+=(tenant_network_types=gre)
         Q_ML2_PLUGIN_GRE_TYPE_OPTIONS=(tunnel_id_ranges=$TENANT_TUNNEL_RANGES)
-    elif [[ "$ENABLE_TENANT_VLANS" = "True" ]]; then
+    elif [[ "$ENABLE_TENANT_VLANS" == "True" ]]; then
         Q_SRV_EXTRA_OPTS+=(tenant_network_types=vlan)
     else
         echo "WARNING - The ml2 plugin is using local tenant networks, with no connectivity between hosts."
@@ -74,7 +74,7 @@
     # Allow for overrding VLAN configuration (for example, to configure provider
     # VLANs) by first checking if Q_ML2_PLUGIN_VLAN_TYPE_OPTIONS is set.
     if [ "$Q_ML2_PLUGIN_VLAN_TYPE_OPTIONS" == "" ]; then
-        if [[ "$ML2_VLAN_RANGES" = "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]]; then
+        if [[ "$ML2_VLAN_RANGES" == "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]]; then
             ML2_VLAN_RANGES=$PHYSICAL_NETWORK
             if [[ "$TENANT_VLAN_RANGE" != "" ]]; then
                 ML2_VLAN_RANGES=$ML2_VLAN_RANGES:$TENANT_VLAN_RANGE
diff --git a/lib/neutron_plugins/ofagent_agent b/lib/neutron_plugins/ofagent_agent
index 6610ea3..b8321f3 100644
--- a/lib/neutron_plugins/ofagent_agent
+++ b/lib/neutron_plugins/ofagent_agent
@@ -46,7 +46,7 @@
     fi
 
     # Enable tunnel networks if selected
-    if [[ "$OVS_ENABLE_TUNNELING" = "True" ]]; then
+    if [[ "$OVS_ENABLE_TUNNELING" == "True" ]]; then
         # Verify tunnels are supported
         # REVISIT - also check kernel module support for GRE and patch ports
         OVS_VERSION=`ovs-vsctl --version | head -n 1 | grep -E -o "[0-9]+\.[0-9]+"`
@@ -60,7 +60,7 @@
     # Setup physical network bridge mappings.  Override
     # ``OVS_VLAN_RANGES`` and ``OVS_BRIDGE_MAPPINGS`` in ``localrc`` for more
     # complex physical network configurations.
-    if [[ "$OVS_BRIDGE_MAPPINGS" = "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]] && [[ "$OVS_PHYSICAL_BRIDGE" != "" ]]; then
+    if [[ "$OVS_BRIDGE_MAPPINGS" == "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]] && [[ "$OVS_PHYSICAL_BRIDGE" != "" ]]; then
         OVS_BRIDGE_MAPPINGS=$PHYSICAL_NETWORK:$OVS_PHYSICAL_BRIDGE
 
         # Configure bridge manually with physical interface as port for multi-node
diff --git a/lib/neutron_plugins/openvswitch b/lib/neutron_plugins/openvswitch
index c644fed..fc81092 100644
--- a/lib/neutron_plugins/openvswitch
+++ b/lib/neutron_plugins/openvswitch
@@ -15,10 +15,10 @@
 }
 
 function neutron_plugin_configure_service {
-    if [[ "$ENABLE_TENANT_TUNNELS" = "True" ]]; then
+    if [[ "$ENABLE_TENANT_TUNNELS" == "True" ]]; then
         iniset /$Q_PLUGIN_CONF_FILE ovs tenant_network_type gre
         iniset /$Q_PLUGIN_CONF_FILE ovs tunnel_id_ranges $TENANT_TUNNEL_RANGES
-    elif [[ "$ENABLE_TENANT_VLANS" = "True" ]]; then
+    elif [[ "$ENABLE_TENANT_VLANS" == "True" ]]; then
         iniset /$Q_PLUGIN_CONF_FILE ovs tenant_network_type vlan
     else
         echo "WARNING - The openvswitch plugin is using local tenant networks, with no connectivity between hosts."
@@ -26,7 +26,7 @@
 
     # Override ``OVS_VLAN_RANGES`` and ``OVS_BRIDGE_MAPPINGS`` in ``localrc``
     # for more complex physical network configurations.
-    if [[ "$OVS_VLAN_RANGES" = "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]]; then
+    if [[ "$OVS_VLAN_RANGES" == "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]]; then
         OVS_VLAN_RANGES=$PHYSICAL_NETWORK
         if [[ "$TENANT_VLAN_RANGE" != "" ]]; then
             OVS_VLAN_RANGES=$OVS_VLAN_RANGES:$TENANT_VLAN_RANGE
@@ -37,7 +37,7 @@
     fi
 
     # Enable tunnel networks if selected
-    if [[ $OVS_ENABLE_TUNNELING = "True" ]]; then
+    if [[ $OVS_ENABLE_TUNNELING == "True" ]]; then
         iniset /$Q_PLUGIN_CONF_FILE ovs enable_tunneling True
     fi
 
diff --git a/lib/neutron_plugins/openvswitch_agent b/lib/neutron_plugins/openvswitch_agent
index 3604a50..fbc013f 100644
--- a/lib/neutron_plugins/openvswitch_agent
+++ b/lib/neutron_plugins/openvswitch_agent
@@ -9,7 +9,7 @@
 
 function neutron_plugin_create_nova_conf {
     _neutron_ovs_base_configure_nova_vif_driver
-    if [ "$VIRT_DRIVER" = 'xenserver' ]; then
+    if [ "$VIRT_DRIVER" == 'xenserver' ]; then
         iniset $NOVA_CONF xenserver vif_driver nova.virt.xenapi.vif.XenAPIOpenVswitchDriver
         iniset $NOVA_CONF xenserver ovs_integration_bridge $XEN_INTEGRATION_BRIDGE
         # Disable nova's firewall so that it does not conflict with neutron
@@ -40,7 +40,7 @@
     _neutron_ovs_base_configure_firewall_driver
 
     # Setup agent for tunneling
-    if [[ "$OVS_ENABLE_TUNNELING" = "True" ]]; then
+    if [[ "$OVS_ENABLE_TUNNELING" == "True" ]]; then
         # Verify tunnels are supported
         # REVISIT - also check kernel module support for GRE and patch ports
         OVS_VERSION=`ovs-vsctl --version | head -n 1 | grep -E -o "[0-9]+\.[0-9]+"`
@@ -54,7 +54,7 @@
     # Setup physical network bridge mappings.  Override
     # ``OVS_VLAN_RANGES`` and ``OVS_BRIDGE_MAPPINGS`` in ``localrc`` for more
     # complex physical network configurations.
-    if [[ "$OVS_BRIDGE_MAPPINGS" = "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]] && [[ "$OVS_PHYSICAL_BRIDGE" != "" ]]; then
+    if [[ "$OVS_BRIDGE_MAPPINGS" == "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]] && [[ "$OVS_PHYSICAL_BRIDGE" != "" ]]; then
         OVS_BRIDGE_MAPPINGS=$PHYSICAL_NETWORK:$OVS_PHYSICAL_BRIDGE
 
         # Configure bridge manually with physical interface as port for multi-node
@@ -65,7 +65,7 @@
     fi
     AGENT_BINARY="$NEUTRON_BIN_DIR/neutron-openvswitch-agent"
 
-    if [ "$VIRT_DRIVER" = 'xenserver' ]; then
+    if [ "$VIRT_DRIVER" == 'xenserver' ]; then
         # Make a copy of our config for domU
         sudo cp /$Q_PLUGIN_CONF_FILE "/$Q_PLUGIN_CONF_FILE.domu"