Finish Schoolhouse programming submission flow

home/doris-schoolhouse/bin/backup-to-serenity.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SERENITY_NFS_EXPORT="${SERENITY_NFS_EXPORT:-10.5.1.5:/mnt/user/data}"
+SERENITY_MOUNT_POINT="${SERENITY_MOUNT_POINT:-/mnt/serenity-data}"
+SCHOOLHOUSE_DATA_ROOT="${SCHOOLHOUSE_DATA_ROOT:-/opt/doris-schoolhouse/data}"
+SERENITY_BACKUP_SUBDIR="${SERENITY_BACKUP_SUBDIR:-backups/nomad/doris-schoolhouse}"
+RSYNC_BIN="${RSYNC_BIN:-/usr/bin/rsync}"
+SUDO_BIN="${SUDO_BIN:-/usr/bin/sudo}"
+MOUNT_BIN="${MOUNT_BIN:-/usr/bin/mount}"
+DATE_BIN="${DATE_BIN:-/usr/bin/date}"
+HOSTNAME_BIN="${HOSTNAME_BIN:-/usr/bin/hostname}"
+
+if [[ ! -d "$SCHOOLHOUSE_DATA_ROOT" ]]; then
+  echo "Schoolhouse data root missing: $SCHOOLHOUSE_DATA_ROOT" >&2
+  exit 1
+fi
+
+"$SUDO_BIN" mkdir -p "$SERENITY_MOUNT_POINT"
+if ! mountpoint -q "$SERENITY_MOUNT_POINT"; then
+  "$SUDO_BIN" "$MOUNT_BIN" -t nfs -o rw,nfsvers=4 "$SERENITY_NFS_EXPORT" "$SERENITY_MOUNT_POINT"
+fi
+
+dest_root="$SERENITY_MOUNT_POINT/$SERENITY_BACKUP_SUBDIR"
+mkdir -p "$dest_root/data"
+
+"$RSYNC_BIN" -rlt --delete --omit-dir-times --no-perms --no-owner --no-group "$SCHOOLHOUSE_DATA_ROOT/" "$dest_root/data/"
+
+stamp="$("$DATE_BIN" -u +%Y-%m-%dT%H:%M:%SZ)"
+host_name="$("$HOSTNAME_BIN")"
+printf '%s\n' "$stamp" > "$dest_root/last_success_utc.txt"
+printf '%s\n' "$host_name" > "$dest_root/source_host.txt"
+
+echo "Schoolhouse backup synced to $dest_root at $stamp"