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