Index: git/ocf/heat-api-cloudwatch =================================================================== --- /dev/null +++ git/ocf/heat-api-cloudwatch @@ -0,0 +1,344 @@ +#!/bin/sh +# +# +# OpenStack Orchestration Engine Service (heat-api-cloudwatch) +# +# Description: Manages an OpenStack Orchestration Engine Service (heat-api-cloudwatch) process as an HA resource +# +# Authors: Emilien Macchi +# +# Support: openstack@lists.launchpad.net +# License: Apache Software License (ASL) 2.0 +# +# +# See usage() function below for more details ... +# +# OCF instance parameters: +# OCF_RESKEY_binary +# OCF_RESKEY_config +# OCF_RESKEY_user +# OCF_RESKEY_pid +# OCF_RESKEY_monitor_binary +# OCF_RESKEY_server_port +# OCF_RESKEY_additional_parameters +####################################################################### +# Initialization: + +: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat} +. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs + +####################################################################### + +# Fill in some defaults if no values are specified + +OCF_RESKEY_binary_default="heat-api-cloudwatch" +OCF_RESKEY_config_default="/etc/heat/heat.conf" +OCF_RESKEY_user_default="heat" +OCF_RESKEY_pid_default="$HA_RSCTMP/$OCF_RESOURCE_INSTANCE.pid" +OCF_RESKEY_server_port_default="8000" + +: ${OCF_RESKEY_binary=${OCF_RESKEY_binary_default}} +: ${OCF_RESKEY_config=${OCF_RESKEY_config_default}} +: ${OCF_RESKEY_user=${OCF_RESKEY_user_default}} +: ${OCF_RESKEY_pid=${OCF_RESKEY_pid_default}} +: ${OCF_RESKEY_server_port=${OCF_RESKEY_server_port_default}} + +####################################################################### + +usage() { + cat < + + +1.0 + + +Resource agent for the OpenStack Orchestration Engine Service (heat-api-cloudwatch) +May manage a heat-api-cloudwatch instance or a clone set that +creates a distributed heat-api-cloudwatch cluster. + +Manages the OpenStack Orchestration Engine Service (heat-api-cloudwatch) + + + + +Location of the OpenStack Orchestration Engine server binary (heat-api-cloudwatch) + +OpenStack Orchestration Engine server binary (heat-api-cloudwatch) + + + + + +Location of the OpenStack Orchestration Engine Service (heat-api-cloudwatch) configuration file + +OpenStack Orchestration Engine (heat-api-cloudwatch) config file + + + + + +User running OpenStack Orchestration Engine Service (heat-api-cloudwatch) + +OpenStack Orchestration Engine Service (heat-api-cloudwatch) user + + + + + +The pid file to use for this OpenStack Orchestration Engine Service (heat-api-cloudwatch) instance + +OpenStack Orchestration Engine Service (heat-api-cloudwatch) pid file + + + + + +The listening port number of the heat-api-cloudwatch server. + + +heat-api-cloudwatch listening port + + + + + +Additional parameters to pass on to the OpenStack Orchestration Engine Service (heat-api-cloudwatch) + +Additional parameters for heat-api-cloudwatch + + + + + + + + + + + + + + +END +} + +####################################################################### +# Functions invoked by resource manager actions + +heat_api_cloudwatch_check_port() { +# This function has been taken from the squid RA and improved a bit +# The length of the integer must be 4 +# Examples of valid port: "1080", "0080" +# Examples of invalid port: "1080bad", "0", "0000", "" + + local int + local cnt + + int="$1" + cnt=${#int} + echo $int |egrep -qx '[0-9]+(:[0-9]+)?(,[0-9]+(:[0-9]+)?)*' + + if [ $? -ne 0 ] || [ $cnt -ne 4 ]; then + ocf_log err "Invalid port number: $1" + exit $OCF_ERR_CONFIGURED + fi +} + +heat_api_cloudwatch_validate() { + local rc + + check_binary $OCF_RESKEY_binary + check_binary netstat + heat_api_cloudwatch_check_port $OCF_RESKEY_server_port + + # A config file on shared storage that is not available + # during probes is OK. + if [ ! -f $OCF_RESKEY_config ]; then + if ! ocf_is_probe; then + ocf_log err "Config $OCF_RESKEY_config doesn't exist" + return $OCF_ERR_INSTALLED + fi + ocf_log_warn "Config $OCF_RESKEY_config not available during a probe" + fi + + getent passwd $OCF_RESKEY_user >/dev/null 2>&1 + rc=$? + if [ $rc -ne 0 ]; then + ocf_log err "User $OCF_RESKEY_user doesn't exist" + return $OCF_ERR_INSTALLED + fi + + true +} + +heat_api_cloudwatch_status() { + local pid + local rc + + if [ ! -f $OCF_RESKEY_pid ]; then + ocf_log info "OpenStack Orchestration Engine (heat-api-cloudwatch) is not running" + return $OCF_NOT_RUNNING + else + pid=`cat $OCF_RESKEY_pid` + fi + + ocf_run -warn kill -s 0 $pid + rc=$? + if [ $rc -eq 0 ]; then + return $OCF_SUCCESS + else + ocf_log info "Old PID file found, but OpenStack Orchestration Engine (heat-api-cloudwatch) is not running" + return $OCF_NOT_RUNNING + fi +} + +heat_api_cloudwatch_monitor() { + local rc + local pid + local rc_db + local engine_db_check + + heat_api_cloudwatch_status + rc=$? + + # If status returned anything but success, return that immediately + if [ $rc -ne $OCF_SUCCESS ]; then + return $rc + fi + + # Check the server is listening on the server port + engine_db_check=`netstat -an | grep -s "$OCF_RESKEY_console_port" | grep -qs "LISTEN"` + rc_db=$? + if [ $rc_db -ne 0 ]; then + ocf_log err "heat-api-cloudwatch is not listening on $OCF_RESKEY_console_port: $rc_db" + return $OCF_NOT_RUNNING + fi + + ocf_log debug "OpenStack Orchestration Engine (heat-api-cloudwatch) monitor succeeded" + return $OCF_SUCCESS +} + +heat_api_cloudwatch_start() { + local rc + + heat_api_cloudwatch_status + rc=$? + if [ $rc -eq $OCF_SUCCESS ]; then + ocf_log info "OpenStack Orchestration Engine (heat-api-cloudwatch) already running" + return $OCF_SUCCESS + fi + + # run the actual heat-api-cloudwatch daemon. Don't use ocf_run as we're sending the tool's output + # straight to /dev/null anyway and using ocf_run would break stdout-redirection here. + su ${OCF_RESKEY_user} -s /bin/sh -c "${OCF_RESKEY_binary} --config-file=$OCF_RESKEY_config \ + $OCF_RESKEY_additional_parameters"' >> /dev/null 2>&1 & echo $!' > $OCF_RESKEY_pid + + # Spin waiting for the server to come up. + while true; do + heat_api_cloudwatch_monitor + rc=$? + [ $rc -eq $OCF_SUCCESS ] && break + if [ $rc -ne $OCF_NOT_RUNNING ]; then + ocf_log err "OpenStack Orchestration Engine (heat-api-cloudwatch) start failed" + exit $OCF_ERR_GENERIC + fi + sleep 1 + done + + ocf_log info "OpenStack Orchestration Engine (heat-api-cloudwatch) started" + return $OCF_SUCCESS +} + +heat_api_cloudwatch_stop() { + local rc + local pid + + heat_api_cloudwatch_status + rc=$? + if [ $rc -eq $OCF_NOT_RUNNING ]; then + ocf_log info "OpenStack Orchestration Engine (heat-api-cloudwatch) already stopped" + return $OCF_SUCCESS + fi + + # Try SIGTERM + pid=`cat $OCF_RESKEY_pid` + ocf_run kill -s TERM $pid + rc=$? + if [ $rc -ne 0 ]; then + ocf_log err "OpenStack Orchestration Engine (heat-api-cloudwatch) couldn't be stopped" + exit $OCF_ERR_GENERIC + fi + + # stop waiting + shutdown_timeout=15 + if [ -n "$OCF_RESKEY_CRM_meta_timeout" ]; then + shutdown_timeout=$((($OCF_RESKEY_CRM_meta_timeout/1000)-5)) + fi + count=0 + while [ $count -lt $shutdown_timeout ]; do + heat_api_cloudwatch_status + rc=$? + if [ $rc -eq $OCF_NOT_RUNNING ]; then + break + fi + count=`expr $count + 1` + sleep 1 + ocf_log debug "OpenStack Orchestration Engine (heat-api-cloudwatch) still hasn't stopped yet. Waiting ..." + done + + heat_api_cloudwatch_status + rc=$? + if [ $rc -ne $OCF_NOT_RUNNING ]; then + # SIGTERM didn't help either, try SIGKILL + ocf_log info "OpenStack Orchestration Engine (heat-api-cloudwatch) failed to stop after ${shutdown_timeout}s \ + using SIGTERM. Trying SIGKILL ..." + ocf_run kill -s KILL $pid + fi + + ocf_log info "OpenStack Orchestration Engine (heat-api-cloudwatch) stopped" + + rm -f $OCF_RESKEY_pid + + return $OCF_SUCCESS +} + +####################################################################### + +case "$1" in + meta-data) meta_data + exit $OCF_SUCCESS;; + usage|help) usage + exit $OCF_SUCCESS;; +esac + +# Anything except meta-data and help must pass validation +heat_api_cloudwatch_validate || exit $? + +# What kind of method was invoked? +case "$1" in + start) heat_api_cloudwatch_start;; + stop) heat_api_cloudwatch_stop;; + status) heat_api_cloudwatch_status;; + monitor) heat_api_cloudwatch_monitor;; + validate-all) ;; + *) usage + exit $OCF_ERR_UNIMPLEMENTED;; +esac +