refactor ping_check
Encapsulate all the neutron specific things you have to do ping a
neutron guest into a separate script. Refactor the main ping_check so
all logic is contained within it.
Change-Id: Ic79d8e3a2473b978551a5635a11dba07e1020bb2
diff --git a/tools/ping_neutron.sh b/tools/ping_neutron.sh
new file mode 100755
index 0000000..d36b7f6
--- /dev/null
+++ b/tools/ping_neutron.sh
@@ -0,0 +1,65 @@
+#!/bin/bash
+#
+# Copyright 2015 Hewlett-Packard Development Company, L.P.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may
+# not use this file except in compliance with the License. You may obtain
+# a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations
+# under the License.
+
+# Ping a neutron guest using a network namespace probe
+
+set -o errexit
+set -o pipefail
+
+TOP_DIR=$(cd $(dirname "$0")/.. && pwd)
+
+# This *must* be run as the admin tenant
+source $TOP_DIR/openrc admin admin
+
+function usage {
+ cat - <<EOF
+ping_neutron.sh <net_name> [ping args]
+
+This provides a wrapper to ping neutron guests that are on isolated
+tenant networks that the caller can't normally reach. It does so by
+creating a network namespace probe.
+
+It takes arguments like ping, except the first arg must be the network
+name.
+
+Note: in environments with duplicate network names, the results are
+non deterministic.
+
+This should *really* be in the neutron cli.
+
+EOF
+ exit 1
+}
+
+NET_NAME=$1
+
+if [[ -z "$NET_NAME" ]]; then
+ echo "Error: net_name is required"
+ usage
+fi
+
+REMANING_ARGS="${@:2}"
+
+# BUG: with duplicate network names, this fails pretty hard.
+NET_ID=$(neutron net-list $NET_NAME | grep "$NET_NAME" | awk '{print $2}')
+PROBE_ID=$(neutron-debug probe-list -c id -c network_id | grep "$NET_ID" | awk '{print $2}' | head -n 1)
+
+# This runs a command inside the specific netns
+NET_NS_CMD="ip netns exec qprobe-$PROBE_ID"
+
+PING_CMD="sudo $NET_NS_CMD ping $REMAING_ARGS"
+echo "Running $PING_CMD"
+$PING_CMD