From fc7b154907a5473ecdd3376e4eecc54bde01a555 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Gardais=20J=C3=A9r=C3=A9my?=
 <jeremy.gardais@univ-rennes1.fr>
Date: Mon, 22 Jul 2019 16:25:08 +0200
Subject: [PATCH] Dl deb files of all related Ceph pkg on the system

---
 ceph/ceph.backup.deb.files.sh | 41 ++++++++++++++++++++++++++---------
 1 file changed, 31 insertions(+), 10 deletions(-)

diff --git a/ceph/ceph.backup.deb.files.sh b/ceph/ceph.backup.deb.files.sh
index 8c5fa06..e4e7dad 100755
--- a/ceph/ceph.backup.deb.files.sh
+++ b/ceph/ceph.backup.deb.files.sh
@@ -10,8 +10,9 @@
 # }}}
 
 # Vars {{{
-CEPH_DEB_DIR="/var/cache/apt/archives"
-CEPH_DEB_PKG_FILE=$(find "${CEPH_DEB_DIR}" -maxdepth 1 -type f -iname "ceph*.deb" -print -quit)
+CEPH_DEB_PKG_DIR=$(mktemp --directory --tmpdir="/tmp" -- ceph-deb-files-XXXXXX.tmp)
+CEPH_DEB_PKG_PATTERN="ceph|rados|rbd"
+
 CEPH_VERSION=$(ceph version | cut -d" " -f3)
 
 BKP_DIR="/srv/ceph"
@@ -20,19 +21,39 @@ BKP_TAR_PATH="${BKP_DIR}/ceph-deb_${CEPH_VERSION}-$(date +%Y%m%d).tar"
 EXISTENT_BACKUP_TAR="$(find "${BKP_DIR}" -type f -iname "ceph-deb_${CEPH_VERSION}*")"
 # }}}
 
-# Test if a "ceph" package is available
-if [ "${CEPH_DEB_PKG_FILE}" ]; then
+# If Ceph is installed on the system
+if [ "$(command -v ceph)" ]; then
 
-	mkdir -p -- "${BKP_DIR}"
+	# and no backup of this version already exists
+	if [ ! "${EXISTENT_BACKUP_TAR}" ]; then
+		## Ensure to create backup directory
+		mkdir -p -- "${BKP_DIR}"
 
-	# If no backup of this version already exists, create a new one
-	if [ "${EXISTENT_BACKUP_TAR}" ]; then
-		printf '%b\n' "A backup of this version already exists : ${EXISTENT_BACKUP_TAR}"
+		## Create and go to a temp directory
+		cd -- "${CEPH_DEB_PKG_DIR}" > /dev/null || exit 2
+
+		## Download deb files of all ceph related packages installed on the system
+		printf '%b\n' "Download deb files of all ceph related packages installed on the system."
+		apt download -- $(dpkg -l | awk -v pattern="${CEPH_DEB_PKG_PATTERN}" '$0~pattern {print $2"="$3}')
+
+		printf '%b\n' "Backup Ceph deb files in version : ${CEPH_VERSION}"
+		tar cf "${BKP_TAR_PATH}" ./*.deb > /dev/null 2>&1
+
+		## Remove deb files
+		rm -rf -- *.deb
+
+		cd - > /dev/null || exit 2
+
+		## Remove temp directory
+		rmdir -- "${CEPH_DEB_PKG_DIR}"
 	else
-		printf '%b\n' "Backup of Ceph deb files in version : ${CEPH_VERSION}"
-		tar cf "${BKP_TAR_PATH}" "${CEPH_DEB_DIR}"/*"${CEPH_VERSION}"*.deb > /dev/null 2>&1
+		printf '%b\n' "A backup of this version already exists : ${EXISTENT_BACKUP_TAR}"
+		exit 1
 	fi
 
+else
+	printf '%b\n' "Ceph doesn't seems to be available. Please take a look on \`ceph version\` command"
+	exit 1
 fi
 
 exit 0