devstack源码

# Common Configuration# ====================# Set fixed and floating range here so we can make sure not to use addresses# from either range when attempting to guess the IP to use for the host.# Note that setting FIXED_RANGE may be necessary when running DevStack# in an OpenStack cloud that uses either of these address ranges internally.FLOATING_RANGE=${FLOATING_RANGE:-172.24.4.224/28}FIXED_RANGE=${FIXED_RANGE:-10.0.0.0/24}FIXED_NETWORK_SIZE=${FIXED_NETWORK_SIZE:-256}HOST_IP=$(get_default_host_ip $FIXED_RANGE $FLOATING_RANGE "$HOST_IP_IFACE" "$HOST_IP")if [ "$HOST_IP" == "" ]; then    die $LINENO "Could not determine host ip address. Either localrc specified dhcp on ${HOST_IP_IFACE} or defaulted"fi# Allow the use of an alternate hostname (such as localhost/127.0.0.1) for service endpoints.SERVICE_HOST=${SERVICE_HOST:-$HOST_IP}# Allow the use of an alternate protocol (such as https) for service endpointsSERVICE_PROTOCOL=${SERVICE_PROTOCOL:-http}# Configure services to use syslog instead of writing to individual log filesSYSLOG=`trueorfalse False $SYSLOG`SYSLOG_HOST=${SYSLOG_HOST:-$HOST_IP}SYSLOG_PORT=${SYSLOG_PORT:-516}# Enable sysstat loggingSYSSTAT_FILE=${SYSSTAT_FILE:-"sysstat.dat"}SYSSTAT_INTERVAL=${SYSSTAT_INTERVAL:-"1"}# Use color for logging output (only available if syslog is not used)LOG_COLOR=`trueorfalse True $LOG_COLOR`# Service startup timeoutSERVICE_TIMEOUT=${SERVICE_TIMEOUT:-60}