Merge pull request #50 from benlangfeld/patch-1

Allow rolling backups to a limit

backup/pvc/VERSION.txt

@@ -1 +1 @@
-v0.0.3
+v0.0.4

backup/pvc/bin/backup.sh

@@ -6,6 +6,11 @@ set -eo pipefail
 [[ -z "${BACKUP_DIR}" ]] && echo "Required 'BACKUP_DIR' env not set" && exit 1;
 [[ -z "${JENKINS_HOME}" ]] && echo "Required 'JENKINS_HOME' env not set" && exit 1;
 
+if [[ ! -z "${BACKUP_COUNT}" ]]; then
+  echo "Trimming to only $((BACKUP_COUNT-1)) recent backups in preparation for new backup"
+  ls -1t ${BACKUP_DIR} | tail -n +${BACKUP_COUNT} | xargs -I '{}' rm -f ${BACKUP_DIR}/'{}'
+fi
+
 backup_number=$1
 echo "Running backup"
 
@@ -14,4 +19,4 @@ tar -C ${JENKINS_HOME} -czf "${BACKUP_DIR}/${backup_number}.tar.gz" --exclude jo
 [[ ! -s ${BACKUP_DIR}/${backup_number}.tar.gz ]] && echo "backup file '${BACKUP_DIR}/${backup_number}.tar.gz' is empty" && exit 1;
 
 echo Done
-exit 0
+exit 0

docs/getting-started.md

@@ -423,7 +423,9 @@ spec:
         value: /backup
       - name: JENKINS_HOME
         value: /jenkins-home
-      image: virtuslab/jenkins-operator-backup-pvc:v0.0.3 # look at backup/pvc directory
+      - name: BACKUP_COUNT
+        value: "2" # keep only the 2 most recent backups
+      image: virtuslab/jenkins-operator-backup-pvc:v0.0.4 # look at backup/pvc directory
       imagePullPolicy: IfNotPresent
       volumeMounts:
       - mountPath: /jenkins-home # Jenkins home volume