1 files changed, 42 insertions, 0 deletions
diff --git a/experiment/scripts/prometheus-backup.sh b/experiment/scripts/prometheus-backup.sh
new file mode 100755
index 0000000..08cd9aa
--- /dev/null
+++ b/experiment/scripts/prometheus-backup.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# Script which creates a snapshot of a running Prometheus instance
+
+# This will copy the snapshot to the configured LOG_DIR
+# (setup.sh) hopefully persistent on the Grid5000 NFS
+
+# Usage: ./data-backup.sh
+# Used by taler-databackup.service
+
+set -eu
+
+if [[ $(ps -aux | grep "[data]-backup.sh" | wc -l) -eq 1 ]]; then
+  echo "Previous backup still running, skipping"
+  exit 0
+fi
+
+PROMETHEUS_DATA_DIR=/var/lib/prometheus/metrics2/snapshots
+
+SNAPSHOT_COPY_PATH=${EXPERIMENT_DATA_DIR}/prometheus-tmp
+SNAPSHOT_PATH=${EXPERIMENT_DATA_DIR}/prometheus
+
+END_TIME=$(date +%s)
+
+SNAPSHOT="${PROMETHEUS_DATA_DIR}/$(\
+  curl \
+    -X POST \
+    http://localhost:8080/api/v1/admin/tsdb/snapshot \
+  | jq -r '.data.name'
+)"
+
+# copy first because its nfs, when copied remove the previous one
+cp -r "${SNAPSHOT}" "${SNAPSHOT_COPY_PATH}"
+rm -rf "${SNAPSHOT_PATH}"
+mv "${SNAPSHOT_COPY_PATH}" "${SNAPSHOT_PATH}"
+
+# export timestamps for the recover script in g5k-repo/additional
+echo "
+EXPERIMENT_START=${START_TIME}
+SNAPSHOT_TIME=${END_TIME}
+" > "${EXPERIMENT_DATA_DIR}/times.env"
+