Garage backup to SFTP target hosted by Max
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@ -1,6 +1,6 @@
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FROM alpine:3.17
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RUN apk add rclone btrfs-progs curl bash jq
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RUN apk add rclone curl bash jq
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COPY do-backup.sh /do-backup.sh
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@ -1,34 +1,53 @@
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#!/usr/bin/env bash
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# DEPENDENCIES: btrfs-progs curl rclone jq
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# DESCRIPTION:
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# Script to backup all buckets on a Garage cluster using rclone.
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#
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# REQUIREMENTS:
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# An access key for the backup script must be created in Garage beforehand.
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# This script will use the Garage administration API to grant read access
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# to this key on all buckets.
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#
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# A rclone configuration file is expected to be located at `/etc/secrets/rclone.conf`,
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# which contains credentials to the following two remotes:
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# garage: the Garage server, for read access (using the backup access key)
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# backup: the backup location
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#
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# DEPENDENCIES: (see Dockerfile)
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# curl
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# jq
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# rclone
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#
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# PARAMETERS (environmenet variables)
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# $BACKUP_BASEDIR => where to store backups and btrfs snapshots
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# $GARAGE_ADMIN_API_URL => Garage administration API URL (e.g. http://localhost:3903)
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# $GARAGE_ADMIN_TOKEN => Garage administration access token
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# $GARAGE_ACCESS_KEY => Garage access key
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# $GARAGE_SECRET_KEY => Garage secret key
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# $GARAGE_ACCESS_KEY => Garage access key ID
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# $TARGET_BACKUP_DIR => Folder on the backup remote where to store buckets
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if [ -z "$BACKUP_BASEDIR" -o -z "$GARAGE_ACCESS_KEY" -o -z "$GARAGE_ADMIN_TOKEN" ]; then
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if [ -z "$GARAGE_ACCESS_KEY" -o -z "$GARAGE_ADMIN_TOKEN" -o -z "$GARAGE_ADMIN_API_URL" ]; then
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echo "Missing parameters"
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fi
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if [ ! -d "$BACKUP_BASEDIR/buckets" ]; then
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btrfs subvolume create "$BACKUP_BASEDIR/buckets"
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fi
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# copy potentially immutable file to a mutable location,
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# otherwise rclone complains
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mkdir -p /root/.config/rclone
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cp /etc/secrets/rclone.conf /root/.config/rclone/rclone.conf
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function gcurl {
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curl -s -H "Authorization: Bearer $GARAGE_ADMIN_TOKEN" $@
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}
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BUCKETS=$(gcurl "http://localhost:3903/v0/bucket" | jq -r '.[].id')
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BUCKETS=$(gcurl "$GARAGE_ADMIN_API_URL/v0/bucket" | jq -r '.[].id')
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mkdir -p /tmp/buckets-info
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for BUCKET in $BUCKETS; do
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echo "==== BUCKET $BUCKET ===="
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gcurl "http://localhost:3903/v0/bucket?id=$BUCKET" > "$BACKUP_BASEDIR/buckets/$BUCKET.json"
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gcurl "http://localhost:3903/v0/bucket?id=$BUCKET" > "/tmp/buckets-info/$BUCKET.json"
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rclone copy "/tmp/buckets-info/$BUCKET.json" "backup:$TARGET_BACKUP_DIR/" 2>&1
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ALIASES=$(jq -r '.globalAliases[]' < "$BACKUP_BASEDIR/buckets/$BUCKET.json")
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ALIASES=$(jq -r '.globalAliases[]' < "/tmp/buckets-info/$BUCKET.json")
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echo "(aka. $ALIASES)"
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case $ALIASES in
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@ -41,10 +60,6 @@ for BUCKET in $BUCKETS; do
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*)
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echo "Backing up $BUCKET"
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if [ ! -d "$BACKUP_BASEDIR/buckets/$BUCKET" ]; then
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mkdir "$BACKUP_BASEDIR/buckets/$BUCKET"
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fi
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gcurl -X POST -H "Content-Type: application/json" --data @- "http://localhost:3903/v0/bucket/allow" >/dev/null <<EOF
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{
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"bucketId": "$BUCKET",
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@ -53,32 +68,16 @@ for BUCKET in $BUCKETS; do
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}
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EOF
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rclone sync --s3-endpoint http://localhost:3900 \
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--s3-access-key-id $GARAGE_ACCESS_KEY \
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--s3-secret-access-key $GARAGE_SECRET_KEY \
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--s3-region garage \
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--s3-force-path-style \
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--transfers 32 \
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rclone sync \
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--transfers 32 \
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--fast-list \
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--stats-one-line \
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--stats 10s \
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--stats-log-level NOTICE \
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":s3:$BUCKET" "$BACKUP_BASEDIR/buckets/$BUCKET" 2>&1
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"garage:$BUCKET" "backup:$TARGET_BACKUP_DIR/$BUCKET" 2>&1
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;;
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esac
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done
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echo "========= DONE SYNCHRONIZING =========="
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if [ ! -d "$BACKUP_BASEDIR/snapshots" ]; then
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mkdir "$BACKUP_BASEDIR/snapshots"
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fi
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SNAPSHOT="$BACKUP_BASEDIR/snapshots/buckets-$(date +%F)"
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if [ ! -e "$SNAPSHOT" ]; then
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echo "Making snapshot: $SNAPSHOT"
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btrfs subvolume snapshot "$BACKUP_BASEDIR/buckets" "$SNAPSHOT"
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btrfs prop set "$SNAPSHOT" ro true
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fi
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@ -239,48 +239,4 @@ EOH
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}
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}
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}
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group "backup-garage" {
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constraint {
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attribute = "${attr.unique.hostname}"
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operator = "="
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value = "abricot"
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}
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task "main" {
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driver = "docker"
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config {
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image = "lxpz/backup_garage:4"
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network_mode = "host"
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volumes = [
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"/mnt/storage/backup/garage.deuxfleurs.fr:/backup"
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]
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}
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template {
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data = <<EOH
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BACKUP_BASEDIR=/backup
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GARAGE_ADMIN_TOKEN={{ key "secrets/garage/admin_token" }}
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GARAGE_ACCESS_KEY={{ key "secrets/backup/garage/s3_access_key_id" }}
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GARAGE_SECRET_KEY={{ key "secrets/backup/garage/s3_secret_access_key" }}
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EOH
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destination = "secrets/env_vars"
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env = true
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}
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resources {
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cpu = 500
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memory = 200
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memory_max = 4000
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}
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restart {
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attempts = 2
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interval = "30m"
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delay = "15s"
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mode = "fail"
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}
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}
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}
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}
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@ -0,0 +1,72 @@
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job "backup-garage" {
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datacenters = ["neptune", "bespin"]
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type = "batch"
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priority = "60"
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periodic {
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cron = "@daily"
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// Do not allow overlapping runs.
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prohibit_overlap = true
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}
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group "backup-garage" {
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task "main" {
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driver = "docker"
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config {
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image = "lxpz/backup_garage:9"
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network_mode = "host"
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volumes = [
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"secrets/rclone.conf:/etc/secrets/rclone.conf"
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]
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}
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template {
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data = <<EOH
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GARAGE_ADMIN_TOKEN={{ key "secrets/garage/admin_token" }}
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GARAGE_ADMIN_API_URL=http://localhost:3903
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GARAGE_ACCESS_KEY={{ key "secrets/backup/garage/s3_access_key_id" }}
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TARGET_BACKUP_DIR={{ key "secrets/backup/garage/target_sftp_directory" }}
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EOH
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destination = "secrets/env_vars"
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env = true
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}
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template {
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data = <<EOH
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[garage]
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type = s3
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provider = Other
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env_auth = false
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access_key_id = {{ key "secrets/backup/garage/s3_access_key_id" }}
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secret_access_key = {{ key "secrets/backup/garage/s3_secret_access_key" }}
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endpoint = http://localhost:3900
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region = garage
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[backup]
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type = sftp
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host = {{ key "secrets/backup/garage/target_sftp_host" }}
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user = {{ key "secrets/backup/garage/target_sftp_user" }}
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port = {{ key "secrets/backup/garage/target_sftp_port" }}
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key_pem = {{ key "secrets/backup/garage/target_sftp_key_pem" | replaceAll "\n" "\\n" }}
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shell_type = unix
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EOH
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destination = "secrets/rclone.conf"
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}
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resources {
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cpu = 500
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memory = 200
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memory_max = 4000
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}
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restart {
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attempts = 2
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interval = "30m"
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delay = "15s"
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mode = "fail"
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}
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}
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}
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}
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