go-ceph/micro-osd.sh
Lincoln Thurlow ecf9a99249 cephfs: add unmount, release, chmod, chown, etc
This commit adds the following cephfs functions:

* Unmount // Unmounting is necessary to cleanup mounts
* Release // Release destroys the cmount ~ end of transaction
* RemoveDir // inverse of MakeDir
* Chown // change ownership of file or directory
* Chmod // change permissions of file or directory

Tests are included for each function.

In addition to these changes modifications to:

.travis.yml, Dockerfile, and Makefile

were made to accomodate tests to mount the ceph volume.  Tests use
fuse to mount the volume which requires adding:

--device /dev/fuse --cap-add SYS_ADMIN --security-opt \
apparmor:unconfined

to the docker container (alternatively --privileged works but adds
additional permissions).

Changes to README add the above docker changes as well as point
users to the necessary ceph development libraries.
2018-10-11 11:09:16 -07:00

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#
# Copyright (C) 2013,2014 Loic Dachary <loic@dachary.org>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
set -e
set -x
set -u
DIR=${1}
# reset
pkill ceph || true
rm -rf ${DIR}/*
LOG_DIR=${DIR}/log
MON_DATA=${DIR}/mon
MDS_DATA=${DIR}/mds
MOUNTPT=${MDS_DATA}/mnt
OSD_DATA=${DIR}/osd
mkdir ${LOG_DIR} ${MON_DATA} ${OSD_DATA} ${MDS_DATA} ${MOUNTPT}
MDS_NAME="Z"
MON_NAME="a"
MGR_NAME="x"
# cluster wide parameters
cat >> ${DIR}/ceph.conf <<EOF
[global]
fsid = $(uuidgen)
osd crush chooseleaf type = 0
run dir = ${DIR}/run
auth cluster required = none
auth service required = none
auth client required = none
osd pool default size = 1
[mds.${MDS_NAME}]
host = localhost
[mon.${MON_NAME}]
log file = ${LOG_DIR}/mon.log
chdir = ""
mon cluster log file = ${LOG_DIR}/mon-cluster.log
mon data = ${MON_DATA}
mon addr = 127.0.0.1
mon allow pool delete = true
[osd.0]
log file = ${LOG_DIR}/osd.log
chdir = ""
osd data = ${OSD_DATA}
osd journal = ${OSD_DATA}.journal
osd journal size = 100
osd objectstore = memstore
osd class load list = *
osd class default list = *
EOF
export CEPH_CONF=${DIR}/ceph.conf
# start an osd
ceph-mon --id ${MON_NAME} --mkfs --keyring /dev/null
touch ${MON_DATA}/keyring
ceph-mon --id ${MON_NAME}
# start an osd
OSD_ID=$(ceph osd create)
ceph osd crush add osd.${OSD_ID} 1 root=default host=localhost
ceph-osd --id ${OSD_ID} --mkjournal --mkfs
ceph-osd --id ${OSD_ID}
# start an mds for cephfs
ceph auth get-or-create mds.${MDS_NAME} mon 'profile mds' mgr 'profile mds' mds 'allow *' osd 'allow *' > ${MDS_DATA}/keyring
ceph osd pool create cephfs_data 8
ceph osd pool create cephfs_metadata 8
ceph fs new cephfs cephfs_metadata cephfs_data
ceph fs ls
ceph-mds -i ${MDS_NAME}
ceph status
while [[ ! $(ceph mds stat | grep "up:active") ]]; do sleep 1; done
# fuse: device not found, try 'modprobe fuse' first
# Make sure to run with --privileged or --cap-add SYS_ADMIN --device /dev/fuse --security apparmor:unconfined for docker
ceph-fuse ${MOUNTPT}
# start a manager
ceph-mgr --id ${MGR_NAME}
# test the setup
ceph --version
ceph status
test_pool=$(uuidgen)
temp_file=$(mktemp)
rados mkpool ${test_pool}
rados --pool ${test_pool} put group /etc/group
rados --pool ${test_pool} get group ${temp_file}
diff /etc/group ${temp_file}
rados rmpool ${test_pool} ${test_pool} --yes-i-really-really-mean-it
rm ${temp_file}