Add scripts for restoring and dumping the piler database

imageroot/actions/restore-module/40restoreDB

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2024 Nethesis S.r.l.
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+
+set -e -o pipefail
+exec 1>&2 # Redirect any output to the journal (stderr)
+
+# Prepare an initialization script that restores the dump file
+mkdir -vp initdb.d
+mv -v piler.sql initdb.d
+#do the bash file to restore and exit once done
+cat - >initdb.d/zz_piler_restore.sh <<'EOS'
+# Print additional information:
+mysql --version
+# The script is sourced, override entrypoint args and exit:
+set -- true
+docker_temp_server_stop
+exit 0
+EOS
+
+# once we exit we remove initdb.d
+trap 'rm -rfv initdb.d/' EXIT
+
+# we start a container to initiate a database and load the dump
+# at the end of piler_restore.sh the dump is loaded and 
+# we exit the container
+podman run \
+  --rm \
+  --interactive \
+  --network=none \
+  --volume=./initdb.d:/docker-entrypoint-initdb.d:z \
+  --volume mysql-data:/var/lib/mysql/:Z \
+  --env MARIADB_ROOT_PASSWORD=Nethesis,1234 \
+  --env MARIADB_DATABASE=piler \
+  --env MARIADB_USER=piler \
+  --env MARIADB_PASSWORD=piler \
+  --replace --name=restore_db \
+  ${MARIADB_IMAGE}

imageroot/bin/module-cleanup-state

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2024 Nethesis S.r.l.
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+
+rm -vf piler.sql

imageroot/bin/module-dump-state

@@ -0,0 +1,21 @@
+#!/bin/bash
+
+#
+# Copyright (C) 2023 Nethesis S.r.l.
+# SPDX-License-Identifier: GPL-3.0-or-later
+#
+
+set -e
+
+if ! systemctl --user -q is-active piler.service; then
+    exit 0
+fi
+
+podman exec mariadb-app mysqldump \
+        --databases piler \
+        --default-character-set=utf8mb4 \
+        --skip-dump-date \
+        --ignore-table=mysql.event \
+        --single-transaction \
+        --quick \
+        --add-drop-table  > piler.sql

imageroot/etc/state-include.conf

@@ -1,3 +1,10 @@
+#
+# SOGo state/backup include patterns for Restic
+# Syntax reference: https://pkg.go.dev/path/filepath#Glob
+# Restic --files-from: https://restic.readthedocs.io/en/stable/040_backup.html#including-files
+#
+state/piler.sql
 volumes/mysql-conf.d
-volumes/mysql-data
-volumes/piler_var
+volumes/piler_manticore
+volumes/piler_store
+volumes/piler_etc