neutron-ns-metadata-proxy

#!/bin/bash

template='
global 
    uid ${metadata_proxy_user}
    gid ${metadata_proxy_group}
    tune.bufsize 4096

defaults
    timeout client 5s
    timeout connect 2s
    timeout server 30s

listen listener
    option forwardfor
    bind 0.0.0.0:${metadata_port}
    mode http
    server agent unix@${metadata_proxy_socket}
    ${router_id_header}
    ${network_id_header}
'

while [[ $# > 0 ]]; do
    case $1 in
        --pid_file*) 
            pid_file=${1##*=}; shift ;;
        --metadata_proxy_user*) 
            metadata_proxy_user=${1##*=}; shift ;;
        --router_id*) 
            router_id_header="http-request set-header X-Neutron-Router-ID ${1##*=}"; shift ;;
        --network_id*)
            network_id_header="http-request set-header X-Neutron-Network-ID ${1##*=}"; shift ;;
        --metadata_port*) 
            metadata_port=${1##*=}; shift ;;
        --metadata_proxy_group*) 
            metadata_proxy_group=${1##*=}; shift ;;
        --metadata_proxy_socket*) 
            metadata_proxy_socket=${1##*=}; shift ;;
        *) shift ;;
    esac
done

eval "echo \"$template\""
eval "echo \"$template\"" | haproxy -D -p ${pid_file} -f /dev/stdin
exit $?