Single node CEPH setup

init-single-node-ceph.sh

#
# Enable CEPH repos as described at http://ceph.com/docs/master/install/get-packages/#rpm
# Install ceph-deploy package
#

apt update
apt install ceph-deploy -y

export DATA_DEV=vdb
export FS_TYPE=xfs
export CEPH_S_NODE=$(hostname)
export CEPH_RELEASE=octopus

#
# Attention!
# the disks DATA_DEV and DATA_DEV will be re-partitioned!
#

# if you need to install CEPH packages
ceph-deploy install --stable ${CEPH_RELEASE} ${CEPH_S_NODE}
ceph-deploy pkg --install librados-dev ${CEPH_S_NODE}

ceph-deploy new ${CEPH_S_NODE}
echo "osd crush chooseleaf type = 0" >> ceph.conf
echo "osd pool default size = 1" >> ceph.conf

ceph-deploy mon create-initial ${CEPH_S_NODE}
ceph-deploy disk --fs-type ${FS_TYPE} zap ${CEPH_S_NODE}:${DATA_DEV}
ceph-deploy osd --fs-type ${FS_TYPE} create ${CEPH_S_NODE}:${DATA_DEV}

#
# The following files can be copied to the client host to be used with librados:
#
#    /etc/ceph/ceph.client.admin.keyring
#    /etc/ceph/ceph.conf