317 lines
9.6 KiB
Bash
317 lines
9.6 KiB
Bash
#!/bin/bash
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#
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#
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# OpenStack Nova Compute (nova-compute)
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#
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# Description: Manages an OpenStack Nova Compute (nova-compute) process as an HA resource
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#
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# Authors: Sébastien Han
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# Mainly inspired by the Glance API resource agent written by Martin Gerhard Loschwitz from Hastexo: http://goo.gl/whLpr
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#
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# Support: openstack@lists.launchpad.net
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# License: Apache Software License (ASL) 2.0
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#
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#
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# See usage() function below for more details ...
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#
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# OCF instance parameters:
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# OCF_RESKEY_binary
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# OCF_RESKEY_config
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# OCF_RESKEY_user
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# OCF_RESKEY_pid
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# OCF_RESKEY_amqp_server_port
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# OCF_RESKEY_zeromq
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# OCF_RESKEY_additional_parameters
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#######################################################################
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# Initialization:
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: ${OCF_FUNCTIONS_DIR=${OCF_ROOT}/lib/heartbeat}
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. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
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: ${OCF_FUEL_FUNCTIONS_DIR=${OCF_ROOT}/resource.d/fuel}
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. ${OCF_FUEL_FUNCTIONS_DIR}/ocf-fuel-funcs
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#######################################################################
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# Fill in some defaults if no values are specified
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PATH=/bin:/sbin:/usr/bin:/usr/sbin
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OCF_RESKEY_binary_default="nova-compute"
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OCF_RESKEY_config_default="/etc/nova/nova.conf"
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OCF_RESKEY_user_default="nova"
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OCF_RESKEY_pid_default="${HA_RSCTMP}/${__SCRIPT_NAME}/${__SCRIPT_NAME}.pid"
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OCF_RESKEY_amqp_server_port_default="5672"
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OCF_RESKEY_zeromq_default="false"
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: ${HA_LOGTAG="ocf-nova-compute"}
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: ${HA_LOGFACILITY="daemon"}
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: ${OCF_RESKEY_binary=${OCF_RESKEY_binary_default}}
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: ${OCF_RESKEY_config=${OCF_RESKEY_config_default}}
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: ${OCF_RESKEY_user=${OCF_RESKEY_user_default}}
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: ${OCF_RESKEY_pid=${OCF_RESKEY_pid_default}}
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: ${OCF_RESKEY_amqp_server_port=${OCF_RESKEY_amqp_server_port_default}}
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: ${OCF_RESKEY_zeromq=${OCF_RESKEY_zeromq_default}}
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#######################################################################
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usage() {
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cat <<UEND
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usage: $0 (start|stop|validate-all|meta-data|status|monitor)
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$0 manages an OpenStack Nova Compute (nova-compute) process as an HA resource
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The 'start' operation starts the nova-compute service.
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The 'stop' operation stops the nova-compute service.
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The 'validate-all' operation reports whether the parameters are valid
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The 'meta-data' operation reports this RA's meta-data information
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The 'status' operation reports whether the nova-compute service is running
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The 'monitor' operation reports whether the nova-compute service seems to be working
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UEND
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}
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meta_data() {
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cat <<END
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<?xml version="1.0"?>
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<!DOCTYPE resource-agent SYSTEM "ra-api-1.dtd">
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<resource-agent name="nova-compute">
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<version>1.0</version>
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<longdesc lang="en">
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Resource agent for the OpenStack Nova Compute Service (nova-compute)
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May manage a nova-compute instance or a clone set that
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creates a distributed nova-compute cluster.
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</longdesc>
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<shortdesc lang="en">Manages the OpenStack Nova Compute (nova-compute)</shortdesc>
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<parameters>
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<parameter name="binary" unique="0" required="0">
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<longdesc lang="en">
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Location of the OpenStack Nova Compute server binary (nova-compute)
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</longdesc>
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<shortdesc lang="en">OpenStack Nova Compute server binary (nova-compute)</shortdesc>
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<content type="string" default="${OCF_RESKEY_binary_default}" />
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</parameter>
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<parameter name="config" unique="0" required="0">
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<longdesc lang="en">
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Location of the OpenStack Nova Compute (nova-compute) configuration file
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</longdesc>
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<shortdesc lang="en">OpenStack Nova Compute (nova-compute registry) config file</shortdesc>
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<content type="string" default="${OCF_RESKEY_config_default}" />
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</parameter>
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<parameter name="user" unique="0" required="0">
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<longdesc lang="en">
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User running OpenStack Nova Compute (nova-compute)
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</longdesc>
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<shortdesc lang="en">OpenStack Nova Compute (nova-compute) user</shortdesc>
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<content type="string" default="${OCF_RESKEY_user_default}" />
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</parameter>
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<parameter name="pid" unique="0" required="0">
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<longdesc lang="en">
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The pid file to use for this OpenStack Nova Compute (nova-compute) instance
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</longdesc>
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<shortdesc lang="en">OpenStack Nova Compute (nova-compute) pid file</shortdesc>
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<content type="string" default="${OCF_RESKEY_pid_default}" />
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</parameter>
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<parameter name="amqp_server_port" unique="0" required="0">
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<longdesc lang="en">
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The listening port number of the AMQP server. Mandatory to perform a monitor check
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</longdesc>
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<shortdesc lang="en">AMQP listening port</shortdesc>
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<content type="integer" default="${OCF_RESKEY_amqp_server_port_default}" />
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</parameter>
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<parameter name="zeromq" unique="0" required="0">
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<longdesc lang="en">
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If zeromq is used, this will disable the connection test to the AMQP server
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</longdesc>
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<shortdesc lang="en">Zero-MQ usage</shortdesc>
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<content type="boolean" default="${OCF_RESKEY_zeromq_default}" />
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</parameter>
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<parameter name="additional_parameters" unique="0" required="0">
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<longdesc lang="en">
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Additional parameters to pass on to the OpenStack Nova Compute (nova-compute)
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</longdesc>
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<shortdesc lang="en">Additional parameters for nova-compute</shortdesc>
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<content type="string" />
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</parameter>
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</parameters>
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<actions>
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<action name="start" timeout="10" />
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<action name="stop" timeout="10" />
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<action name="status" timeout="10" />
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<action name="monitor" timeout="5" interval="10" />
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<action name="validate-all" timeout="5" />
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<action name="meta-data" timeout="5" />
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</actions>
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</resource-agent>
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END
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}
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#######################################################################
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# Functions invoked by resource manager actions
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nova_compute_validate() {
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local rc
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check_binary $OCF_RESKEY_binary
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check_binary netstat
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if ! validate_port $OCF_RESKEY_amqp_server_port; then
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return ${OCF_ERR_CONFIGURED}
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fi
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# A config file on shared storage that is not available
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# during probes is OK.
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if [ ! -f $OCF_RESKEY_config ]; then
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if ! ocf_is_probe; then
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ocf_log err "Config $OCF_RESKEY_config doesn't exist"
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return $OCF_ERR_INSTALLED
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fi
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ocf_log_warn "Config $OCF_RESKEY_config not available during a probe"
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fi
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getent passwd $OCF_RESKEY_user >/dev/null 2>&1
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rc=$?
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if [ $rc -ne 0 ]; then
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ocf_log err "User $OCF_RESKEY_user doesn't exist"
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return $OCF_ERR_INSTALLED
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fi
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return ${OCF_SUCCESS}
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}
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nova_compute_status() {
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local pid
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local rc
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# check and make PID file dir
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local PID_DIR="$( dirname $OCF_RESKEY_pid )"
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if [ ! -d "${PID_DIR}" ] ; then
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ocf_log debug "Create pid file dir: ${PID_DIR} and chown to ${OCF_RESKEY_user}"
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mkdir -p "${PID_DIR}"
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chown -R ${OCF_RESKEY_user} "${PID_DIR}"
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chmod 755 "${PID_DIR}"
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fi
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if [ ! -f $OCF_RESKEY_pid ]; then
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ocf_log info "OpenStack Nova Compute (nova-compute) is not running"
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return $OCF_NOT_RUNNING
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else
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pid=`cat $OCF_RESKEY_pid`
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fi
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if [ -n "${pid}" ]; then
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ocf_run -warn kill -s 0 $pid
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rc=$?
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else
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ocf_log err "PID file ${OCF_RESKEY_pid} is empty!"
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return $OCF_ERR_GENERIC
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fi
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if [ $rc -eq 0 ]; then
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return $OCF_SUCCESS
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else
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ocf_log info "Old PID file found, but OpenStack Nova Compute (nova-compute) is not running"
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return $OCF_NOT_RUNNING
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fi
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}
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nova_compute_monitor() {
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local rc
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local pid
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local rc_amqp
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local console_amqp_check
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nova_compute_status
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rc=$?
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# If status returned anything but success, return that immediately
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if [ $rc -ne $OCF_SUCCESS ]; then
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return $rc
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fi
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ocf_log debug "OpenStack Nova Compute (nova-compute) monitor succeeded"
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return $OCF_SUCCESS
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}
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nova_compute_start() {
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local rc
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nova_compute_status
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rc=$?
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if [ $rc -eq $OCF_SUCCESS ]; then
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ocf_log info "OpenStack Nova Compute (nova-compute) already running"
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return $OCF_SUCCESS
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fi
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# run the actual nova-compute daemon. Don't use ocf_run as we're sending the tool's output
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# straight to /dev/null anyway and using ocf_run would break stdout-redirection here.
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su ${OCF_RESKEY_user} -s /bin/sh -c "${OCF_RESKEY_binary} --config-file=${OCF_RESKEY_config} \
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$OCF_RESKEY_additional_parameters"' >> /dev/null 2>&1 & echo $!' > $OCF_RESKEY_pid
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ocf_log debug "Create pid file: ${OCF_RESKEY_pid} with content $(cat ${OCF_RESKEY_pid})"
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# Spin waiting for the server to come up.
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# Let the CRM/LRM time us out if required
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while true; do
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nova_compute_monitor
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rc=$?
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[ $rc -eq $OCF_SUCCESS ] && break
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if [ $rc -ne $OCF_NOT_RUNNING ]; then
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ocf_log err "OpenStack Nova Compute (nova-compute) start failed"
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exit $OCF_ERR_GENERIC
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fi
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sleep 3
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done
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ocf_log info "OpenStack Nova Compute (nova-compute) started"
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return $OCF_SUCCESS
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}
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nova_compute_stop() {
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local rc
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local shutdown_timeout=15
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if [ -n "$OCF_RESKEY_CRM_meta_timeout" ]; then
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shutdown_timeout=$(( ($OCF_RESKEY_CRM_meta_timeout/1000) ))
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fi
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nova_compute_status
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rc=$?
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if [ "${rc}" -eq "${OCF_NOT_RUNNING}" ]; then
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ocf_log info "OpenStack Nova Compute (${OCF_RESKEY_binary}) already stopped"
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return $OCF_SUCCESS
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fi
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proc_stop "${OCF_RESKEY_pid}" "${OCF_RESKEY_binary}" $shutdown_timeout
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return "${?}"
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}
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#######################################################################
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case "$1" in
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meta-data) meta_data
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exit $OCF_SUCCESS;;
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usage|help) usage
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exit $OCF_SUCCESS;;
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esac
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# Anything except meta-data and help must pass validation
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nova_compute_validate || exit $?
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# What kind of method was invoked?
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case "$1" in
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start) nova_compute_start;;
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stop) nova_compute_stop;;
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status) nova_compute_status;;
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monitor) nova_compute_monitor;;
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validate-all) ;;
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*) usage
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exit $OCF_ERR_UNIMPLEMENTED;;
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esac
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