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-rw-r--r--cluster/prod/app/backup/build/backup-garage/Dockerfile2
-rw-r--r--cluster/prod/app/backup/build/backup-garage/do-backup.sh71
2 files changed, 36 insertions, 37 deletions
diff --git a/cluster/prod/app/backup/build/backup-garage/Dockerfile b/cluster/prod/app/backup/build/backup-garage/Dockerfile
index ea42331..ffb558c 100644
--- a/cluster/prod/app/backup/build/backup-garage/Dockerfile
+++ b/cluster/prod/app/backup/build/backup-garage/Dockerfile
@@ -1,6 +1,6 @@
FROM alpine:3.17
-RUN apk add rclone btrfs-progs curl bash jq
+RUN apk add rclone curl bash jq
COPY do-backup.sh /do-backup.sh
diff --git a/cluster/prod/app/backup/build/backup-garage/do-backup.sh b/cluster/prod/app/backup/build/backup-garage/do-backup.sh
index 36ba2f2..c8e01aa 100644
--- a/cluster/prod/app/backup/build/backup-garage/do-backup.sh
+++ b/cluster/prod/app/backup/build/backup-garage/do-backup.sh
@@ -1,34 +1,53 @@
#!/usr/bin/env bash
-# DEPENDENCIES: btrfs-progs curl rclone jq
-
+# DESCRIPTION:
+# Script to backup all buckets on a Garage cluster using rclone.
+#
+# REQUIREMENTS:
+# An access key for the backup script must be created in Garage beforehand.
+# This script will use the Garage administration API to grant read access
+# to this key on all buckets.
+#
+# A rclone configuration file is expected to be located at `/etc/secrets/rclone.conf`,
+# which contains credentials to the following two remotes:
+# garage: the Garage server, for read access (using the backup access key)
+# backup: the backup location
+#
+# DEPENDENCIES: (see Dockerfile)
+# curl
+# jq
+# rclone
+#
# PARAMETERS (environmenet variables)
-# $BACKUP_BASEDIR => where to store backups and btrfs snapshots
+# $GARAGE_ADMIN_API_URL => Garage administration API URL (e.g. http://localhost:3903)
# $GARAGE_ADMIN_TOKEN => Garage administration access token
-# $GARAGE_ACCESS_KEY => Garage access key
-# $GARAGE_SECRET_KEY => Garage secret key
+# $GARAGE_ACCESS_KEY => Garage access key ID
+# $TARGET_BACKUP_DIR => Folder on the backup remote where to store buckets
-if [ -z "$BACKUP_BASEDIR" -o -z "$GARAGE_ACCESS_KEY" -o -z "$GARAGE_ADMIN_TOKEN" ]; then
+if [ -z "$GARAGE_ACCESS_KEY" -o -z "$GARAGE_ADMIN_TOKEN" -o -z "$GARAGE_ADMIN_API_URL" ]; then
echo "Missing parameters"
fi
-if [ ! -d "$BACKUP_BASEDIR/buckets" ]; then
- btrfs subvolume create "$BACKUP_BASEDIR/buckets"
-fi
-
+# copy potentially immutable file to a mutable location,
+# otherwise rclone complains
+mkdir -p /root/.config/rclone
+cp /etc/secrets/rclone.conf /root/.config/rclone/rclone.conf
function gcurl {
curl -s -H "Authorization: Bearer $GARAGE_ADMIN_TOKEN" $@
}
-BUCKETS=$(gcurl "http://localhost:3903/v0/bucket" | jq -r '.[].id')
+BUCKETS=$(gcurl "$GARAGE_ADMIN_API_URL/v0/bucket" | jq -r '.[].id')
+
+mkdir -p /tmp/buckets-info
for BUCKET in $BUCKETS; do
echo "==== BUCKET $BUCKET ===="
- gcurl "http://localhost:3903/v0/bucket?id=$BUCKET" > "$BACKUP_BASEDIR/buckets/$BUCKET.json"
+ gcurl "http://localhost:3903/v0/bucket?id=$BUCKET" > "/tmp/buckets-info/$BUCKET.json"
+ rclone copy "/tmp/buckets-info/$BUCKET.json" "backup:$TARGET_BACKUP_DIR/" 2>&1
- ALIASES=$(jq -r '.globalAliases[]' < "$BACKUP_BASEDIR/buckets/$BUCKET.json")
+ ALIASES=$(jq -r '.globalAliases[]' < "/tmp/buckets-info/$BUCKET.json")
echo "(aka. $ALIASES)"
case $ALIASES in
@@ -41,10 +60,6 @@ for BUCKET in $BUCKETS; do
*)
echo "Backing up $BUCKET"
- if [ ! -d "$BACKUP_BASEDIR/buckets/$BUCKET" ]; then
- mkdir "$BACKUP_BASEDIR/buckets/$BUCKET"
- fi
-
gcurl -X POST -H "Content-Type: application/json" --data @- "http://localhost:3903/v0/bucket/allow" >/dev/null <<EOF
{
"bucketId": "$BUCKET",
@@ -53,32 +68,16 @@ for BUCKET in $BUCKETS; do
}
EOF
- rclone sync --s3-endpoint http://localhost:3900 \
- --s3-access-key-id $GARAGE_ACCESS_KEY \
- --s3-secret-access-key $GARAGE_SECRET_KEY \
- --s3-region garage \
- --s3-force-path-style \
- --transfers 32 \
+ rclone sync \
+ --transfers 32 \
--fast-list \
--stats-one-line \
--stats 10s \
--stats-log-level NOTICE \
- ":s3:$BUCKET" "$BACKUP_BASEDIR/buckets/$BUCKET" 2>&1
+ "garage:$BUCKET" "backup:$TARGET_BACKUP_DIR/$BUCKET" 2>&1
;;
esac
done
echo "========= DONE SYNCHRONIZING =========="
-if [ ! -d "$BACKUP_BASEDIR/snapshots" ]; then
- mkdir "$BACKUP_BASEDIR/snapshots"
-fi
-
-SNAPSHOT="$BACKUP_BASEDIR/snapshots/buckets-$(date +%F)"
-if [ ! -e "$SNAPSHOT" ]; then
- echo "Making snapshot: $SNAPSHOT"
- btrfs subvolume snapshot "$BACKUP_BASEDIR/buckets" "$SNAPSHOT"
- btrfs prop set "$SNAPSHOT" ro true
-fi
-
-