66 lines
2.1 KiB
Bash
Executable File
66 lines
2.1 KiB
Bash
Executable File
#!/bin/sh
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# Purpose {{{
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## This script will check if Ceph is available on the system.
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## And download all deb files of all Ceph related packages installed on the system
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## (eg. ceph, rbd, rados,…).
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#
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## You can use this script in a cron (for periodic backup of Ceph packages) or directly.
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# }}}
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# Vars {{{
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DEBUG=1
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CEPH_DEB_PKG_DIR=$(mktemp --directory --tmpdir="/tmp" -- ceph-deb-files-XXXXXX.tmp)
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CEPH_DEB_PKG_PATTERN="ceph|rados|rbd"
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CEPH_VERSION=$(ceph version | cut -d" " -f3)
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BKP_DIR="/srv/ceph"
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BKP_TAR_PATH="${BKP_DIR}/ceph-deb_${CEPH_VERSION}-$(date +%Y%m%d).tar"
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EXISTENT_BACKUP_TAR="$(find "${BKP_DIR}" -type f -iname "ceph-deb_${CEPH_VERSION}*")"
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# }}}
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# If Ceph is installed on the system
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if [ "$(command -v ceph)" ]; then
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# and no backup of this version already exists
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if [ ! "${EXISTENT_BACKUP_TAR}" ]; then
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## Ensure to create backup directory
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mkdir -p -- "${BKP_DIR}"
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## Create and go to a temp directory
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cd -- "${CEPH_DEB_PKG_DIR}" > /dev/null || exit 2
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## Download deb files of all ceph related packages installed on the system
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[ "${DEBUG}" -eq "0" ] && printf '%b\n' "Download deb files of all ceph related packages installed on the system."
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## Use aptitude before Debian Stretch because apt doesn't yet know "download" action
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if [ "$(cat /etc/debian_version | cut -c1)" -lt "9" ]; then
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aptitude download -- $(dpkg -l | awk -v pattern="${CEPH_DEB_PKG_PATTERN}" '$0~pattern {print $2"="$3}') || exit 3
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else
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apt download -- $(dpkg -l | awk -v pattern="${CEPH_DEB_PKG_PATTERN}" '$0~pattern {print $2"="$3}') || exit 3
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fi
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[ "${DEBUG}" -eq "0" ] && printf '%b\n' "Backup Ceph deb files in version : ${CEPH_VERSION}"
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tar cf "${BKP_TAR_PATH}" ./*.deb > /dev/null 2>&1 || exit 4
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## Remove deb files
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rm -rf -- *.deb
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cd - > /dev/null || exit 2
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## Remove temp directory
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rmdir -- "${CEPH_DEB_PKG_DIR}"
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else
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[ "${DEBUG}" -eq "0" ] && printf '%b\n' "A backup of this version already exists : ${EXISTENT_BACKUP_TAR}"
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exit 0
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fi
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else
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[ "${DEBUG}" -eq "0" ] && printf '%b\n' "Ceph doesn't seems to be available. Please take a look on \`ceph version\` command"
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exit 1
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fi
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exit 0
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