Ability to use a remote Ceph cluster
Sometimes we want to run some benchmarks on virtual machines that will be backed by a Ceph cluster. The first idea that comes in our mind is to use devstack to quickly get an OpenStack up and running but what about the configuration of Devstack with this remote cluster? Thanks to this commit it's now possible to use an already existing Ceph cluster. In this case Devstack just needs two things: * the location of the Ceph config file (by default devstack will look for /etc/ceph/ceph.conf * the admin key of the remote ceph cluster (by default devstack will look for /etc/ceph/ceph.client.admin.keyring) Devstack will then create the necessary pools, users, keys and will connect the OpenStack environment as usual. During the unstack phase every pools, users and keys will be deleted on the remote cluster while local files and ceph-common package will be removed from the current Devstack host. To enable this mode simply add REMOTE_CEPH=True to your localrc file. Change-Id: I1a4b6fd676d50b6a41a09e7beba9b11f8d1478f7 Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
This commit is contained in:
Sébastien Han
parent
e750f9c1c6
commit
4eb04a5f9e
@ -6,6 +6,8 @@ if is_service_enabled ceph; then
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source $TOP_DIR/lib/ceph
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elif [[ "$1" == "stack" && "$2" == "pre-install" ]]; then
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echo_summary "Installing Ceph"
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check_os_support_ceph
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if [ "$REMOTE_CEPH" = "False" ]; then
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install_ceph
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echo_summary "Configuring Ceph"
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configure_ceph
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@ -14,6 +16,9 @@ if is_service_enabled ceph; then
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echo_summary "Initializing Ceph"
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init_ceph
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start_ceph
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else
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install_ceph_remote
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fi
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elif [[ "$1" == "stack" && "$2" == "post-config" ]]; then
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if is_service_enabled glance; then
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echo_summary "Configuring Glance for Ceph"
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@ -32,14 +37,39 @@ if is_service_enabled ceph; then
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echo_summary "Configuring libvirt secret"
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import_libvirt_secret_ceph
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fi
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if [ "$REMOTE_CEPH" = "False" ]; then
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if is_service_enabled glance; then
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echo_summary "Configuring Glance for Ceph"
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configure_ceph_embedded_glance
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fi
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if is_service_enabled nova; then
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echo_summary "Configuring Nova for Ceph"
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configure_ceph_embedded_nova
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fi
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if is_service_enabled cinder; then
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echo_summary "Configuring Cinder for Ceph"
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configure_ceph_embedded_cinder
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fi
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fi
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fi
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if [[ "$1" == "unstack" ]]; then
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if [ "$REMOTE_CEPH" = "True" ]; then
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cleanup_ceph_remote
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else
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cleanup_ceph_embedded
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stop_ceph
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cleanup_ceph
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fi
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cleanup_ceph_general
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fi
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if [[ "$1" == "clean" ]]; then
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cleanup_ceph
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if [ "$REMOTE_CEPH" = "True" ]; then
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cleanup_ceph_remote
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else
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cleanup_ceph_embedded
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fi
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cleanup_ceph_general
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fi
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fi
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106
lib/ceph
106
lib/ceph
@ -68,6 +68,11 @@ CINDER_CEPH_UUID=${CINDER_CEPH_UUID:-$(uuidgen)}
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CEPH_REPLICAS=${CEPH_REPLICAS:-1}
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CEPH_REPLICAS_SEQ=$(seq ${CEPH_REPLICAS})
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# Connect to an existing Ceph cluster
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REMOTE_CEPH=$(trueorfalse False $REMOTE_CEPH)
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REMOTE_CEPH_ADMIN_KEY_PATH=${REMOTE_CEPH_ADMIN_KEY_PATH:-$CEPH_CONF_DIR/ceph.client.admin.keyring}
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# Functions
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# ------------
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@ -92,29 +97,69 @@ EOF
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sudo rm -f secret.xml
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}
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# undefine_virsh_secret() - Undefine Cinder key secret from libvirt
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function undefine_virsh_secret {
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if is_service_enabled cinder || is_service_enabled nova; then
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local virsh_uuid=$(sudo virsh secret-list | awk '/^ ?[0-9a-z]/ { print $1 }')
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sudo virsh secret-undefine ${virsh_uuid} >/dev/null 2>&1
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fi
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}
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# check_os_support_ceph() - Check if the operating system provides a decent version of Ceph
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function check_os_support_ceph {
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if [[ ! ${DISTRO} =~ (trusty|f20|f21) ]]; then
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echo "WARNING: your distro $DISTRO does not provide (at least) the Firefly release. Please use Ubuntu Trusty or Fedora 20 (and higher)"
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if [[ "$FORCE_CEPH_INSTALL" != "yes" ]]; then
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die $LINENO "If you wish to install Ceph on this distribution anyway run with FORCE_CEPH_INSTALL=yes"
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fi
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NO_UPDATE_REPOS=False
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fi
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}
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# cleanup_ceph() - Remove residual data files, anything left over from previous
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# runs that a clean run would need to clean up
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function cleanup_ceph {
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function cleanup_ceph_remote {
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# do a proper cleanup from here to avoid leftover on the remote Ceph cluster
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if is_service_enabled glance; then
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sudo ceph osd pool delete $GLANCE_CEPH_POOL $GLANCE_CEPH_POOL --yes-i-really-really-mean-it > /dev/null 2>&1
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sudo ceph auth del client.$GLANCE_CEPH_USER > /dev/null 2>&1
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fi
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if is_service_enabled cinder; then
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sudo ceph osd pool delete $CINDER_CEPH_POOL $CINDER_CEPH_POOL --yes-i-really-really-mean-it > /dev/null 2>&1
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sudo ceph auth del client.$CINDER_CEPH_USER > /dev/null 2>&1
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fi
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if is_service_enabled c-bak; then
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sudo ceph osd pool delete $CINDER_BAK_CEPH_POOL $CINDER_BAK_CEPH_POOL --yes-i-really-really-mean-it > /dev/null 2>&1
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sudo ceph auth del client.$CINDER_BAK_CEPH_USER > /dev/null 2>&1
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fi
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if is_service_enabled nova; then
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iniset $NOVA_CONF libvirt rbd_secret_uuid ""
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sudo ceph osd pool delete $NOVA_CEPH_POOL $NOVA_CEPH_POOL --yes-i-really-really-mean-it > /dev/null 2>&1
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fi
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}
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function cleanup_ceph_embedded {
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sudo pkill -f ceph-mon
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sudo pkill -f ceph-osd
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sudo rm -rf ${CEPH_DATA_DIR}/*/*
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sudo rm -rf ${CEPH_CONF_DIR}/*
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if egrep -q ${CEPH_DATA_DIR} /proc/mounts; then
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sudo umount ${CEPH_DATA_DIR}
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fi
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if [[ -e ${CEPH_DISK_IMAGE} ]]; then
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sudo rm -f ${CEPH_DISK_IMAGE}
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fi
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uninstall_package ceph ceph-common python-ceph libcephfs1 > /dev/null 2>&1
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if is_service_enabled cinder || is_service_enabled nova; then
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local virsh_uuid=$(sudo virsh secret-list | awk '/^ ?[0-9a-z]/ { print $1 }')
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sudo virsh secret-undefine ${virsh_uuid} >/dev/null 2>&1
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fi
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if is_service_enabled nova; then
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iniset $NOVA_CONF libvirt rbd_secret_uuid ""
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fi
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}
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function cleanup_ceph_general {
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undefine_virsh_secret
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uninstall_package ceph ceph-common python-ceph libcephfs1 > /dev/null 2>&1
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# purge ceph config file and keys
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sudo rm -rf ${CEPH_CONF_DIR}/*
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}
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# configure_ceph() - Set config files, create data dirs, etc
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function configure_ceph {
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local count=0
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@ -130,7 +175,7 @@ function configure_ceph {
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sudo mkdir /var/lib/ceph/mon/ceph-$(hostname)
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# create a default ceph configuration file
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sudo tee -a ${CEPH_CONF_FILE} > /dev/null <<EOF
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sudo tee ${CEPH_CONF_FILE} > /dev/null <<EOF
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[global]
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fsid = ${CEPH_FSID}
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mon_initial_members = $(hostname)
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@ -203,14 +248,17 @@ EOF
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done
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}
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# configure_ceph_glance() - Glance config needs to come after Glance is set up
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function configure_ceph_glance {
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function configure_ceph_embedded_glance {
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# configure Glance service options, ceph pool, ceph user and ceph key
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sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${GLANCE_CEPH_POOL} ${GLANCE_CEPH_POOL_PG} ${GLANCE_CEPH_POOL_PGP}
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${GLANCE_CEPH_POOL} size ${CEPH_REPLICAS}
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if [[ $CEPH_REPLICAS -ne 1 ]]; then
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${GLANCE_CEPH_POOL} crush_ruleset ${RULE_ID}
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fi
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}
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# configure_ceph_glance() - Glance config needs to come after Glance is set up
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function configure_ceph_glance {
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sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${GLANCE_CEPH_POOL} ${GLANCE_CEPH_POOL_PG} ${GLANCE_CEPH_POOL_PGP}
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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
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sudo chown ${STACK_USER}:$(id -g -n $whoami) ${CEPH_CONF_DIR}/ceph.client.${GLANCE_CEPH_USER}.keyring
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@ -225,14 +273,17 @@ function configure_ceph_glance {
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iniset $GLANCE_API_CONF glance_store rbd_store_pool $GLANCE_CEPH_POOL
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}
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# configure_ceph_nova() - Nova config needs to come after Nova is set up
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function configure_ceph_nova {
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function configure_ceph_embedded_nova {
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# configure Nova service options, ceph pool, ceph user and ceph key
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sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${NOVA_CEPH_POOL} ${NOVA_CEPH_POOL_PG} ${NOVA_CEPH_POOL_PGP}
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${NOVA_CEPH_POOL} size ${CEPH_REPLICAS}
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if [[ $CEPH_REPLICAS -ne 1 ]]; then
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sudo -c ${CEPH_CONF_FILE} ceph osd pool set ${NOVA_CEPH_POOL} crush_ruleset ${RULE_ID}
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fi
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}
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# configure_ceph_nova() - Nova config needs to come after Nova is set up
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function configure_ceph_nova {
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sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${NOVA_CEPH_POOL} ${NOVA_CEPH_POOL_PG} ${NOVA_CEPH_POOL_PGP}
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iniset $NOVA_CONF libvirt rbd_user ${CINDER_CEPH_USER}
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iniset $NOVA_CONF libvirt rbd_secret_uuid ${CINDER_CEPH_UUID}
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iniset $NOVA_CONF libvirt inject_key false
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@ -248,15 +299,17 @@ function configure_ceph_nova {
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fi
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}
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# configure_ceph_cinder() - Cinder config needs to come after Cinder is set up
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function configure_ceph_cinder {
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function configure_ceph_embedded_cinder {
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# Configure Cinder service options, ceph pool, ceph user and ceph key
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sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${CINDER_CEPH_POOL} ${CINDER_CEPH_POOL_PG} ${CINDER_CEPH_POOL_PGP}
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_CEPH_POOL} size ${CEPH_REPLICAS}
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if [[ $CEPH_REPLICAS -ne 1 ]]; then
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_CEPH_POOL} crush_ruleset ${RULE_ID}
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fi
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}
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# configure_ceph_cinder() - Cinder config needs to come after Cinder is set up
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function configure_ceph_cinder {
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sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${CINDER_CEPH_POOL} ${CINDER_CEPH_POOL_PG} ${CINDER_CEPH_POOL_PGP}
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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
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sudo chown ${STACK_USER}:$(id -g -n $whoami) ${CEPH_CONF_DIR}/ceph.client.${CINDER_CEPH_USER}.keyring
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}
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@ -270,15 +323,12 @@ function init_ceph {
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}
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# install_ceph() - Collect source and prepare
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function install_ceph_remote {
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install_package ceph-common
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}
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function install_ceph {
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# NOTE(dtroyer): At some point it'll be easier to test for unsupported distros,
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# leveraging the list in stack.sh
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if [[ ${os_CODENAME} =~ trusty ]] || [[ ${os_CODENAME} =~ Schrödinger’sCat ]] || [[ ${os_CODENAME} =~ Heisenbug ]]; then
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NO_UPDATE_REPOS=False
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install_package ceph
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else
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exit_distro_not_supported "Ceph since your distro doesn't provide (at least) the Firefly release. Please use Ubuntu Trusty or Fedora 19/20"
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fi
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}
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# start_ceph() - Start running processes, including screen
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@ -52,12 +52,14 @@ function configure_cinder_backend_ceph {
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iniset $CINDER_CONF DEFAULT glance_api_version 2
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if is_service_enabled c-bak; then
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# Configure Cinder backup service options, ceph pool, ceph user and ceph key
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sudo ceph -c ${CEPH_CONF_FILE} osd pool create ${CINDER_BAK_CEPH_POOL} ${CINDER_BAK_CEPH_POOL_PG} ${CINDER_BAK_CEPH_POOL_PGP}
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if [ "$REMOTE_CEPH" = "False" ]; then
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# Configure Cinder backup service options, ceph pool, ceph user and ceph key
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_BAK_CEPH_POOL} size ${CEPH_REPLICAS}
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if [[ $CEPH_REPLICAS -ne 1 ]]; then
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sudo ceph -c ${CEPH_CONF_FILE} osd pool set ${CINDER_BAK_CEPH_POOL} crush_ruleset ${RULE_ID}
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fi
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fi
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sudo ceph -c ${CEPH_CONF_FILE} auth get-or-create client.${CINDER_BAK_CEPH_USER} mon "allow r" osd "allow class-read object_prefix rbd_children, allow rwx pool=${CINDER_BAK_CEPH_POOL}" | sudo tee ${CEPH_CONF_DIR}/ceph.client.${CINDER_BAK_CEPH_USER}.keyring
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sudo chown $(whoami):$(whoami) ${CEPH_CONF_DIR}/ceph.client.${CINDER_BAK_CEPH_USER}.keyring
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