lib/ceph - devstack - Gitiles

 #!/bin/bash
 #
 # lib/ceph
 # Functions to control the configuration and operation of the **Ceph** storage service

 # Dependencies:
 #
 # - ``functions`` file
 # - ``CEPH_DATA_DIR`` or ``DATA_DIR`` must be defined

 # ``stack.sh`` calls the entry points in this order (via ``extras.d/60-ceph.sh``):
 #
 # - install_ceph
 # - configure_ceph
 # - init_ceph
 # - start_ceph
 # - stop_ceph
 # - cleanup_ceph

 # Save trace setting
 XTRACE=$(set +o | grep xtrace)
 set +o xtrace


 # Defaults
 # --------

 # Set ``CEPH_DATA_DIR`` to the location of Ceph drives and objects.
 # Default is the common DevStack data directory.
 CEPH_DATA_DIR=${CEPH_DATA_DIR:-/var/lib/ceph}
 CEPH_DISK_IMAGE=${CEPH_DATA_DIR}/drives/images/ceph.img

 # Set ``CEPH_CONF_DIR`` to the location of the configuration files.
 # Default is ``/etc/ceph``.
 CEPH_CONF_DIR=${CEPH_CONF_DIR:-/etc/ceph}

 # DevStack will create a loop-back disk formatted as XFS to store the
 # Ceph data. Set ``CEPH_LOOPBACK_DISK_SIZE`` to the disk size in
 # kilobytes.
 # Default is 1 gigabyte.
 CEPH_LOOPBACK_DISK_SIZE_DEFAULT=4G
 CEPH_LOOPBACK_DISK_SIZE=${CEPH_LOOPBACK_DISK_SIZE:-$CEPH_LOOPBACK_DISK_SIZE_DEFAULT}

 # Common
 CEPH_FSID=$(uuidgen)
 CEPH_CONF_FILE=${CEPH_CONF_DIR}/ceph.conf

 # Glance
 GLANCE_CEPH_USER=${GLANCE_CEPH_USER:-glance}
 GLANCE_CEPH_POOL=${GLANCE_CEPH_POOL:-images}
 GLANCE_CEPH_POOL_PG=${GLANCE_CEPH_POOL_PG:-8}
 GLANCE_CEPH_POOL_PGP=${GLANCE_CEPH_POOL_PGP:-8}

 # Nova
 NOVA_CEPH_POOL=${NOVA_CEPH_POOL:-vms}
 NOVA_CEPH_POOL_PG=${NOVA_CEPH_POOL_PG:-8}
 NOVA_CEPH_POOL_PGP=${NOVA_CEPH_POOL_PGP:-8}

 # Cinder
 CINDER_CEPH_POOL=${CINDER_CEPH_POOL:-volumes}
 CINDER_CEPH_POOL_PG=${CINDER_CEPH_POOL_PG:-8}
 CINDER_CEPH_POOL_PGP=${CINDER_CEPH_POOL_PGP:-8}
 CINDER_CEPH_USER=${CINDER_CEPH_USER:-cinder}
 CINDER_CEPH_UUID=${CINDER_CEPH_UUID:-$(uuidgen)}

 # Set ``CEPH_REPLICAS`` to configure how many replicas are to be
 # configured for your Ceph cluster. By default we are configuring
 # only one replica since this is way less CPU and memory intensive. If
 # you are planning to test Ceph replication feel free to increase this value
 CEPH_REPLICAS=${CEPH_REPLICAS:-1}
 CEPH_REPLICAS_SEQ=$(seq ${CEPH_REPLICAS})

 # Functions
 # ------------

 function get_ceph_version {
     local ceph_version_str=$(sudo ceph daemon mon.$(hostname) version | cut -d '"' -f 4 | cut -f 1,2 -d '.')
     echo $ceph_version_str
 }

 # import_libvirt_secret_ceph() - Imports Cinder user key into libvirt
 # so it can connect to the Ceph cluster while attaching a Cinder block device
 function import_libvirt_secret_ceph {
     cat > secret.xml <<EOF
 <secret ephemeral='no' private='no'>
    <uuid>${CINDER_CEPH_UUID}</uuid>
    <usage type='ceph'>
      <name>client.${CINDER_CEPH_USER} secret</name>
    </usage>
 </secret>
 EOF
     sudo virsh secret-define --file secret.xml
     sudo virsh secret-set-value --secret ${CINDER_CEPH_UUID} --base64 $(sudo ceph -c ${CEPH_CONF_FILE} auth get-key client.${CINDER_CEPH_USER})
     sudo rm -f secret.xml
 }

 # cleanup_ceph() - Remove residual data files, anything left over from previous
 # runs that a clean run would need to clean up
 function cleanup_ceph {
     sudo pkill -f ceph-mon
     sudo pkill -f ceph-osd
     sudo rm -rf ${CEPH_DATA_DIR}/*/*
     sudo rm -rf ${CEPH_CONF_DIR}/*
     if egrep -q ${CEPH_DATA_DIR} /proc/mounts; then
         sudo umount ${CEPH_DATA_DIR}
     fi
     if [[ -e ${CEPH_DISK_IMAGE} ]]; then
         sudo rm -f ${CEPH_DISK_IMAGE}
     fi
     uninstall_package ceph ceph-common python-ceph libcephfs1 > /dev/null 2>&1
     if is_service_enabled cinder || is_service_enabled nova; then
         local virsh_uuid=$(sudo virsh secret-list | awk '/^ ?[0-9a-z]/ { print $1 }')
         sudo virsh secret-undefine ${virsh_uuid} >/dev/null 2>&1
     fi
     if is_service_enabled nova; then
         iniset $NOVA_CONF libvirt rbd_secret_uuid ""
     fi
 }

 # configure_ceph() - Set config files, create data dirs, etc
 function configure_ceph {
     local count=0

     # create a backing file disk
     create_disk ${CEPH_DISK_IMAGE} ${CEPH_DATA_DIR} ${CEPH_LOOPBACK_DISK_SIZE}

     # populate ceph directory
     sudo mkdir -p ${CEPH_DATA_DIR}/{bootstrap-mds,bootstrap-osd,mds,mon,osd,tmp}

     # create ceph monitor initial key and directory
     sudo ceph-authtool /var/lib/ceph/tmp/keyring.mon.$(hostname) --create-keyring --name=mon. --add-key=$(ceph-authtool --gen-print-key) --cap mon 'allow *'
     sudo mkdir /var/lib/ceph/mon/ceph-$(hostname)

     # create a default ceph configuration file
     sudo tee -a ${CEPH_CONF_FILE} > /dev/null <<EOF
 [global]
 fsid = ${CEPH_FSID}
 mon_initial_members = $(hostname)
 mon_host = ${SERVICE_HOST}
 auth_cluster_required = cephx
 auth_service_required = cephx
 auth_client_required = cephx
 filestore_xattr_use_omap = true
 osd crush chooseleaf type = 0
 osd journal size = 100
 EOF

     # bootstrap the ceph monitor
     sudo ceph-mon -c ${CEPH_CONF_FILE} --mkfs -i $(hostname) --keyring /var/lib/ceph/tmp/keyring.mon.$(hostname)
     if is_ubuntu; then
     sudo touch /var/lib/ceph/mon/ceph-$(hostname)/upstart
         sudo initctl emit ceph-mon id=$(hostname)
     else
     sudo touch /var/lib/ceph/mon/ceph-$(hostname)/sysvinit
         sudo service ceph start mon.$(hostname)
     fi

     # wait for the admin key to come up otherwise we will not be able to do the actions below
     until [ -f ${CEPH_CONF_DIR}/ceph.client.admin.keyring ]; do
         echo_summary "Waiting for the Ceph admin key to be ready..."

         count=$(($count + 1))
         if [ $count -eq 3 ]; then
             die $LINENO "Maximum of 3 retries reached"
         fi
         sleep 5
     done

     # pools data and metadata were removed in the Giant release so depending on the version we apply different commands
     local ceph_version=$(get_ceph_version)
     # change pool replica size according to the CEPH_REPLICAS set by the user
     if [[ ${ceph_version%%.*} -eq 0 ]] && [[ ${ceph_version##*.} -lt 87 ]]; then
         sudo ceph -c ${CEPH_CONF_FILE} osd pool set rbd size ${CEPH_REPLICAS}
         sudo ceph -c ${CEPH_CONF_FILE} osd pool set data size ${CEPH_REPLICAS}
         sudo ceph -c ${CEPH_CONF_FILE} osd pool set metadata size ${CEPH_REPLICAS}
     else
         sudo ceph -c ${CEPH_CONF_FILE} osd pool set rbd size ${CEPH_REPLICAS}
     fi

     # create a simple rule to take OSDs instead of host with CRUSH
     # then apply this rules to the default pool
     if [[ $CEPH_REPLICAS -ne 1 ]]; then
         sudo ceph -c ${CEPH_CONF_FILE} osd crush rule create-simple devstack default osd
         RULE_ID=$(sudo ceph -c ${CEPH_CONF_FILE} osd crush rule dump devstack | awk '/rule_id/ {print $3}' | cut -d ',' -f1)
         sudo ceph -c ${CEPH_CONF_FILE} osd pool set rbd crush_ruleset ${RULE_ID}
         sudo ceph -c ${CEPH_CONF_FILE} osd pool set data crush_ruleset ${RULE_ID}
         sudo ceph -c ${CEPH_CONF_FILE} osd pool set metadata crush_ruleset ${RULE_ID}
     fi

     # create the OSD(s)
     for rep in ${CEPH_REPLICAS_SEQ}; do
         OSD_ID=$(sudo ceph -c ${CEPH_CONF_FILE} osd create)
         sudo mkdir -p ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}
         sudo ceph-osd -c ${CEPH_CONF_FILE} -i ${OSD_ID} --mkfs
         sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create osd.${OSD_ID} mon 'allow profile osd ' osd 'allow *' | sudo tee ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/keyring

         # ceph's init script is parsing ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/ and looking for a file
         # 'upstart' or 'sysinitv', thanks to these 'touches' we are able to control OSDs daemons
         # from the init script.
         if is_ubuntu; then
             sudo touch ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/upstart
         else
             sudo touch ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/sysvinit
         fi
     done
 }

 # configure_ceph_glance() - Glance config needs to come after Glance is set up
 function configure_ceph_glance {
     # configure Glance service options, ceph pool, ceph user and ceph key
     sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${GLANCE_CEPH_POOL} ${GLANCE_CEPH_POOL_PG} ${GLANCE_CEPH_POOL_PGP}
     sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${GLANCE_CEPH_POOL} size ${CEPH_REPLICAS}
     if [[ $CEPH_REPLICAS -ne 1 ]]; then
         sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${GLANCE_CEPH_POOL} crush_ruleset ${RULE_ID}
     fi
     sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${GLANCE_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${GLANCE_CEPH_POOL}" | sudo tee ${CEPH_CONF_DIR}/ceph.client.${GLANCE_CEPH_USER}.keyring
     sudo chown ${STACK_USER}:$(id -g -n $whoami) ${CEPH_CONF_DIR}/ceph.client.${GLANCE_CEPH_USER}.keyring

     # NOTE(eharney): When Glance has fully migrated to Glance store,
     # default_store can be removed from [DEFAULT].  (See lib/glance.)
     iniset $GLANCE_API_CONF DEFAULT default_store rbd
     iniset $GLANCE_API_CONF DEFAULT show_image_direct_url True
     iniset $GLANCE_API_CONF glance_store default_store rbd
     iniset $GLANCE_API_CONF glance_store stores "file, http, rbd"
     iniset $GLANCE_API_CONF glance_store rbd_store_ceph_conf $CEPH_CONF_FILE
     iniset $GLANCE_API_CONF glance_store rbd_store_user $GLANCE_CEPH_USER
     iniset $GLANCE_API_CONF glance_store rbd_store_pool $GLANCE_CEPH_POOL
 }

 # configure_ceph_nova() - Nova config needs to come after Nova is set up
 function configure_ceph_nova {
     # configure Nova service options, ceph pool, ceph user and ceph key
     sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${NOVA_CEPH_POOL} ${NOVA_CEPH_POOL_PG} ${NOVA_CEPH_POOL_PGP}
     sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${NOVA_CEPH_POOL} size ${CEPH_REPLICAS}
     if [[ $CEPH_REPLICAS -ne 1 ]]; then
         sudo -c ${CEPH_CONF_FILE} ceph osd pool set ${NOVA_CEPH_POOL} crush_ruleset ${RULE_ID}
     fi
     iniset $NOVA_CONF libvirt rbd_user ${CINDER_CEPH_USER}
     iniset $NOVA_CONF libvirt rbd_secret_uuid ${CINDER_CEPH_UUID}
     iniset $NOVA_CONF libvirt inject_key false
     iniset $NOVA_CONF libvirt inject_partition -2
     iniset $NOVA_CONF libvirt disk_cachemodes "network=writeback"
     iniset $NOVA_CONF libvirt images_type rbd
     iniset $NOVA_CONF libvirt images_rbd_pool ${NOVA_CEPH_POOL}
     iniset $NOVA_CONF libvirt images_rbd_ceph_conf ${CEPH_CONF_FILE}

     if ! is_service_enabled cinder; then
         sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${CINDER_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${CINDER_CEPH_POOL}, allow rwx pool=${NOVA_CEPH_POOL},allow rx pool=${GLANCE_CEPH_POOL}" | sudo tee ${CEPH_CONF_DIR}/ceph.client.${CINDER_CEPH_USER}.keyring > /dev/null
         sudo chown ${STACK_USER}:$(id -g -n $whoami) ${CEPH_CONF_DIR}/ceph.client.${CINDER_CEPH_USER}.keyring
     fi
 }

 # configure_ceph_cinder() - Cinder config needs to come after Cinder is set up
 function configure_ceph_cinder {
     # Configure Cinder service options, ceph pool, ceph user and ceph key
     sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${CINDER_CEPH_POOL} ${CINDER_CEPH_POOL_PG} ${CINDER_CEPH_POOL_PGP}
     sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_CEPH_POOL} size ${CEPH_REPLICAS}
     if [[ $CEPH_REPLICAS -ne 1 ]]; then
         sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_CEPH_POOL} crush_ruleset ${RULE_ID}

     fi
     sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${CINDER_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${CINDER_CEPH_POOL}, allow rwx pool=${NOVA_CEPH_POOL},allow rx pool=${GLANCE_CEPH_POOL}" | sudo tee ${CEPH_CONF_DIR}/ceph.client.${CINDER_CEPH_USER}.keyring
     sudo chown ${STACK_USER}:$(id -g -n $whoami) ${CEPH_CONF_DIR}/ceph.client.${CINDER_CEPH_USER}.keyring
 }

 # init_ceph() - Initialize databases, etc.
 function init_ceph {
     # clean up from previous (possibly aborted) runs
     # make sure to kill all ceph processes first
     sudo pkill -f ceph-mon || true
     sudo pkill -f ceph-osd || true
 }

 # install_ceph() - Collect source and prepare
 function install_ceph {
     # NOTE(dtroyer): At some point it'll be easier to test for unsupported distros,
     #                leveraging the list in stack.sh
     if [[ ${os_CODENAME} =~ trusty ]] || [[ ${os_CODENAME} =~ Schrödinger’sCat ]] || [[ ${os_CODENAME} =~ Heisenbug ]]; then
         NO_UPDATE_REPOS=False
         install_package ceph
     else
         exit_distro_not_supported "Ceph since your distro doesn't provide (at least) the Firefly release. Please use Ubuntu Trusty or Fedora 19/20"
     fi
 }

 # start_ceph() - Start running processes, including screen
 function start_ceph {
     if is_ubuntu; then
         sudo initctl emit ceph-mon id=$(hostname)
         for id in $(sudo ceph -c ${CEPH_CONF_FILE} osd ls); do
             sudo start ceph-osd id=${id}
         done
     else
         sudo service ceph start
     fi
 }

 # stop_ceph() - Stop running processes (non-screen)
 function stop_ceph {
     if is_ubuntu; then
         sudo service ceph-mon-all stop > /dev/null 2>&1
         sudo service ceph-osd-all stop > /dev/null 2>&1
     else
         sudo service ceph stop > /dev/null 2>&1
     fi
 }


 # Restore xtrace
 $XTRACE

 ## Local variables:
 ## mode: shell-script
 ## End:
	#!/bin/bash
	#
	# lib/ceph
	# Functions to control the configuration and operation of the Ceph storage service

	# Dependencies:
	#
	# - ``functions`` file
	# - ``CEPH_DATA_DIR`` or ``DATA_DIR`` must be defined

	# ``stack.sh`` calls the entry points in this order (via ``extras.d/60-ceph.sh``):
	#
	# - install_ceph
	# - configure_ceph
	# - init_ceph
	# - start_ceph
	# - stop_ceph
	# - cleanup_ceph

	# Save trace setting
	XTRACE=$(set +o \| grep xtrace)
	set +o xtrace


	# Defaults
	# --------

	# Set ``CEPH_DATA_DIR`` to the location of Ceph drives and objects.
	# Default is the common DevStack data directory.
	CEPH_DATA_DIR=${CEPH_DATA_DIR:-/var/lib/ceph}
	CEPH_DISK_IMAGE=${CEPH_DATA_DIR}/drives/images/ceph.img

	# Set ``CEPH_CONF_DIR`` to the location of the configuration files.
	# Default is ``/etc/ceph``.
	CEPH_CONF_DIR=${CEPH_CONF_DIR:-/etc/ceph}

	# DevStack will create a loop-back disk formatted as XFS to store the
	# Ceph data. Set ``CEPH_LOOPBACK_DISK_SIZE`` to the disk size in
	# kilobytes.
	# Default is 1 gigabyte.
	CEPH_LOOPBACK_DISK_SIZE_DEFAULT=4G
	CEPH_LOOPBACK_DISK_SIZE=${CEPH_LOOPBACK_DISK_SIZE:-$CEPH_LOOPBACK_DISK_SIZE_DEFAULT}

	# Common
	CEPH_FSID=$(uuidgen)
	CEPH_CONF_FILE=${CEPH_CONF_DIR}/ceph.conf

	# Glance
	GLANCE_CEPH_USER=${GLANCE_CEPH_USER:-glance}
	GLANCE_CEPH_POOL=${GLANCE_CEPH_POOL:-images}
	GLANCE_CEPH_POOL_PG=${GLANCE_CEPH_POOL_PG:-8}
	GLANCE_CEPH_POOL_PGP=${GLANCE_CEPH_POOL_PGP:-8}

	# Nova
	NOVA_CEPH_POOL=${NOVA_CEPH_POOL:-vms}
	NOVA_CEPH_POOL_PG=${NOVA_CEPH_POOL_PG:-8}
	NOVA_CEPH_POOL_PGP=${NOVA_CEPH_POOL_PGP:-8}

	# Cinder
	CINDER_CEPH_POOL=${CINDER_CEPH_POOL:-volumes}
	CINDER_CEPH_POOL_PG=${CINDER_CEPH_POOL_PG:-8}
	CINDER_CEPH_POOL_PGP=${CINDER_CEPH_POOL_PGP:-8}
	CINDER_CEPH_USER=${CINDER_CEPH_USER:-cinder}
	CINDER_CEPH_UUID=${CINDER_CEPH_UUID:-$(uuidgen)}

	# Set ``CEPH_REPLICAS`` to configure how many replicas are to be
	# configured for your Ceph cluster. By default we are configuring
	# only one replica since this is way less CPU and memory intensive. If
	# you are planning to test Ceph replication feel free to increase this value
	CEPH_REPLICAS=${CEPH_REPLICAS:-1}
	CEPH_REPLICAS_SEQ=$(seq ${CEPH_REPLICAS})

	# Functions
	# ------------

	function get_ceph_version {
	local ceph_version_str=$(sudo ceph daemon mon.$(hostname) version \| cut -d '"' -f 4 \| cut -f 1,2 -d '.')
	echo $ceph_version_str
	}

	# import_libvirt_secret_ceph() - Imports Cinder user key into libvirt
	# so it can connect to the Ceph cluster while attaching a Cinder block device
	function import_libvirt_secret_ceph {
	cat > secret.xml <<EOF
	<secret ephemeral='no' private='no'>
	<uuid>${CINDER_CEPH_UUID}</uuid>
	<usage type='ceph'>
	<name>client.${CINDER_CEPH_USER} secret</name>
	</usage>
	</secret>
	EOF
	sudo virsh secret-define --file secret.xml
	sudo virsh secret-set-value --secret ${CINDER_CEPH_UUID} --base64 $(sudo ceph -c ${CEPH_CONF_FILE} auth get-key client.${CINDER_CEPH_USER})
	sudo rm -f secret.xml
	}

	# cleanup_ceph() - Remove residual data files, anything left over from previous
	# runs that a clean run would need to clean up
	function cleanup_ceph {
	sudo pkill -f ceph-mon
	sudo pkill -f ceph-osd
	sudo rm -rf ${CEPH_DATA_DIR}//
	sudo rm -rf ${CEPH_CONF_DIR}/*
	if egrep -q ${CEPH_DATA_DIR} /proc/mounts; then
	sudo umount ${CEPH_DATA_DIR}
	fi
	if [[ -e ${CEPH_DISK_IMAGE} ]]; then
	sudo rm -f ${CEPH_DISK_IMAGE}
	fi
	uninstall_package ceph ceph-common python-ceph libcephfs1 > /dev/null 2>&1
	if is_service_enabled cinder \|\| is_service_enabled nova; then
	local virsh_uuid=$(sudo virsh secret-list \| awk '/^ ?[0-9a-z]/ { print $1 }')
	sudo virsh secret-undefine ${virsh_uuid} >/dev/null 2>&1
	fi
	if is_service_enabled nova; then
	iniset $NOVA_CONF libvirt rbd_secret_uuid ""
	fi
	}

	# configure_ceph() - Set config files, create data dirs, etc
	function configure_ceph {
	local count=0

	# create a backing file disk
	create_disk ${CEPH_DISK_IMAGE} ${CEPH_DATA_DIR} ${CEPH_LOOPBACK_DISK_SIZE}

	# populate ceph directory
	sudo mkdir -p ${CEPH_DATA_DIR}/{bootstrap-mds,bootstrap-osd,mds,mon,osd,tmp}

	# create ceph monitor initial key and directory
	sudo ceph-authtool /var/lib/ceph/tmp/keyring.mon.$(hostname) --create-keyring --name=mon. --add-key=$(ceph-authtool --gen-print-key) --cap mon 'allow *'
	sudo mkdir /var/lib/ceph/mon/ceph-$(hostname)

	# create a default ceph configuration file
	sudo tee -a ${CEPH_CONF_FILE} > /dev/null <<EOF
	[global]
	fsid = ${CEPH_FSID}
	mon_initial_members = $(hostname)
	mon_host = ${SERVICE_HOST}
	auth_cluster_required = cephx
	auth_service_required = cephx
	auth_client_required = cephx
	filestore_xattr_use_omap = true
	osd crush chooseleaf type = 0
	osd journal size = 100
	EOF

	# bootstrap the ceph monitor
	sudo ceph-mon -c ${CEPH_CONF_FILE} --mkfs -i $(hostname) --keyring /var/lib/ceph/tmp/keyring.mon.$(hostname)
	if is_ubuntu; then
	sudo touch /var/lib/ceph/mon/ceph-$(hostname)/upstart
	sudo initctl emit ceph-mon id=$(hostname)
	else
	sudo touch /var/lib/ceph/mon/ceph-$(hostname)/sysvinit
	sudo service ceph start mon.$(hostname)
	fi

	# wait for the admin key to come up otherwise we will not be able to do the actions below
	until [ -f ${CEPH_CONF_DIR}/ceph.client.admin.keyring ]; do
	echo_summary "Waiting for the Ceph admin key to be ready..."

	count=$(($count + 1))
	if [ $count -eq 3 ]; then
	die $LINENO "Maximum of 3 retries reached"
	fi
	sleep 5
	done

	# pools data and metadata were removed in the Giant release so depending on the version we apply different commands
	local ceph_version=$(get_ceph_version)
	# change pool replica size according to the CEPH_REPLICAS set by the user
	if [[ ${ceph_version%%.} -eq 0 ]] && [[ ${ceph_version##.} -lt 87 ]]; then
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set rbd size ${CEPH_REPLICAS}
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set data size ${CEPH_REPLICAS}
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set metadata size ${CEPH_REPLICAS}
	else
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set rbd size ${CEPH_REPLICAS}
	fi

	# create a simple rule to take OSDs instead of host with CRUSH
	# then apply this rules to the default pool
	if [[ $CEPH_REPLICAS -ne 1 ]]; then
	sudo ceph -c ${CEPH_CONF_FILE} osd crush rule create-simple devstack default osd
	RULE_ID=$(sudo ceph -c ${CEPH_CONF_FILE} osd crush rule dump devstack \| awk '/rule_id/ {print $3}' \| cut -d ',' -f1)
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set rbd crush_ruleset ${RULE_ID}
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set data crush_ruleset ${RULE_ID}
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set metadata crush_ruleset ${RULE_ID}
	fi

	# create the OSD(s)
	for rep in ${CEPH_REPLICAS_SEQ}; do
	OSD_ID=$(sudo ceph -c ${CEPH_CONF_FILE} osd create)
	sudo mkdir -p ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}
	sudo ceph-osd -c ${CEPH_CONF_FILE} -i ${OSD_ID} --mkfs
	sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create osd.${OSD_ID} mon 'allow profile osd ' osd 'allow *' \| sudo tee ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/keyring

	# ceph's init script is parsing ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/ and looking for a file
	# 'upstart' or 'sysinitv', thanks to these 'touches' we are able to control OSDs daemons
	# from the init script.
	if is_ubuntu; then
	sudo touch ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/upstart
	else
	sudo touch ${CEPH_DATA_DIR}/osd/ceph-${OSD_ID}/sysvinit
	fi
	done
	}

	# configure_ceph_glance() - Glance config needs to come after Glance is set up
	function configure_ceph_glance {
	# configure Glance service options, ceph pool, ceph user and ceph key
	sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${GLANCE_CEPH_POOL} ${GLANCE_CEPH_POOL_PG} ${GLANCE_CEPH_POOL_PGP}
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${GLANCE_CEPH_POOL} size ${CEPH_REPLICAS}
	if [[ $CEPH_REPLICAS -ne 1 ]]; then
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${GLANCE_CEPH_POOL} crush_ruleset ${RULE_ID}
	fi
	sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${GLANCE_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${GLANCE_CEPH_POOL}" \| sudo tee ${CEPH_CONF_DIR}/ceph.client.${GLANCE_CEPH_USER}.keyring
	sudo chown ${STACK_USER}:$(id -g -n $whoami) ${CEPH_CONF_DIR}/ceph.client.${GLANCE_CEPH_USER}.keyring

	# NOTE(eharney): When Glance has fully migrated to Glance store,
	# default_store can be removed from [DEFAULT]. (See lib/glance.)
	iniset $GLANCE_API_CONF DEFAULT default_store rbd
	iniset $GLANCE_API_CONF DEFAULT show_image_direct_url True
	iniset $GLANCE_API_CONF glance_store default_store rbd
	iniset $GLANCE_API_CONF glance_store stores "file, http, rbd"
	iniset $GLANCE_API_CONF glance_store rbd_store_ceph_conf $CEPH_CONF_FILE
	iniset $GLANCE_API_CONF glance_store rbd_store_user $GLANCE_CEPH_USER
	iniset $GLANCE_API_CONF glance_store rbd_store_pool $GLANCE_CEPH_POOL
	}

	# configure_ceph_nova() - Nova config needs to come after Nova is set up
	function configure_ceph_nova {
	# configure Nova service options, ceph pool, ceph user and ceph key
	sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${NOVA_CEPH_POOL} ${NOVA_CEPH_POOL_PG} ${NOVA_CEPH_POOL_PGP}
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${NOVA_CEPH_POOL} size ${CEPH_REPLICAS}
	if [[ $CEPH_REPLICAS -ne 1 ]]; then
	sudo -c ${CEPH_CONF_FILE} ceph osd pool set ${NOVA_CEPH_POOL} crush_ruleset ${RULE_ID}
	fi
	iniset $NOVA_CONF libvirt rbd_user ${CINDER_CEPH_USER}
	iniset $NOVA_CONF libvirt rbd_secret_uuid ${CINDER_CEPH_UUID}
	iniset $NOVA_CONF libvirt inject_key false
	iniset $NOVA_CONF libvirt inject_partition -2
	iniset $NOVA_CONF libvirt disk_cachemodes "network=writeback"
	iniset $NOVA_CONF libvirt images_type rbd
	iniset $NOVA_CONF libvirt images_rbd_pool ${NOVA_CEPH_POOL}
	iniset $NOVA_CONF libvirt images_rbd_ceph_conf ${CEPH_CONF_FILE}

	if ! is_service_enabled cinder; then
	sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${CINDER_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${CINDER_CEPH_POOL}, allow rwx pool=${NOVA_CEPH_POOL},allow rx pool=${GLANCE_CEPH_POOL}" \| sudo tee ${CEPH_CONF_DIR}/ceph.client.${CINDER_CEPH_USER}.keyring > /dev/null
	sudo chown ${STACK_USER}:$(id -g -n $whoami) ${CEPH_CONF_DIR}/ceph.client.${CINDER_CEPH_USER}.keyring
	fi
	}

	# configure_ceph_cinder() - Cinder config needs to come after Cinder is set up
	function configure_ceph_cinder {
	# Configure Cinder service options, ceph pool, ceph user and ceph key
	sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${CINDER_CEPH_POOL} ${CINDER_CEPH_POOL_PG} ${CINDER_CEPH_POOL_PGP}
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_CEPH_POOL} size ${CEPH_REPLICAS}
	if [[ $CEPH_REPLICAS -ne 1 ]]; then
	sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_CEPH_POOL} crush_ruleset ${RULE_ID}

	fi
	sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${CINDER_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${CINDER_CEPH_POOL}, allow rwx pool=${NOVA_CEPH_POOL},allow rx pool=${GLANCE_CEPH_POOL}" \| sudo tee ${CEPH_CONF_DIR}/ceph.client.${CINDER_CEPH_USER}.keyring
	sudo chown ${STACK_USER}:$(id -g -n $whoami) ${CEPH_CONF_DIR}/ceph.client.${CINDER_CEPH_USER}.keyring
	}

	# init_ceph() - Initialize databases, etc.
	function init_ceph {
	# clean up from previous (possibly aborted) runs
	# make sure to kill all ceph processes first
	sudo pkill -f ceph-mon \|\| true
	sudo pkill -f ceph-osd \|\| true
	}

	# install_ceph() - Collect source and prepare
	function install_ceph {
	# NOTE(dtroyer): At some point it'll be easier to test for unsupported distros,
	# leveraging the list in stack.sh
	if [[ ${os_CODENAME} =~ trusty ]] \|\| [[ ${os_CODENAME} =~ Schrödinger’sCat ]] \|\| [[ ${os_CODENAME} =~ Heisenbug ]]; then
	NO_UPDATE_REPOS=False
	install_package ceph
	else
	exit_distro_not_supported "Ceph since your distro doesn't provide (at least) the Firefly release. Please use Ubuntu Trusty or Fedora 19/20"
	fi
	}

	# start_ceph() - Start running processes, including screen
	function start_ceph {
	if is_ubuntu; then
	sudo initctl emit ceph-mon id=$(hostname)
	for id in $(sudo ceph -c ${CEPH_CONF_FILE} osd ls); do
	sudo start ceph-osd id=${id}
	done
	else
	sudo service ceph start
	fi
	}

	# stop_ceph() - Stop running processes (non-screen)
	function stop_ceph {
	if is_ubuntu; then
	sudo service ceph-mon-all stop > /dev/null 2>&1
	sudo service ceph-osd-all stop > /dev/null 2>&1
	else
	sudo service ceph stop > /dev/null 2>&1
	fi
	}


	# Restore xtrace
	$XTRACE

	## Local variables:
	## mode: shell-script
	## End: