Update Nextcloud backup #2

backups/create_nextcloud_backup.sh

@@ -1,40 +0,0 @@
-#!/bin/bash
-# Backup script for Nextcloud in a kubernetes cluster
-
-BACKUP_DEST='/mnt/PRIVATE_DOCS/home/backup'
-PASSFILE='./nextcloud_pass.txt'
-
-# Create filename for database
-database_backupfile="nextcloud-sqlbkp_$(date +'%Y%m%d').bak"
-
-# Retrieve container names
-base_container="$( docker ps --format '{{.Names}}' | grep hugocloud-nextcloud_hugocloud-nextcloud )"
-database_container="$( docker ps --format '{{.Names}}' | grep hugocloud-postgresql_hugocloud-postgresql )"
-
-# Abort entire script if any command fails
-set -e
-
-# Turn on maintenance mode
-docker exec --user www-data "${base_container}" php occ maintenance:mode --on
-
-# Database backup
->&2 echo 'Backing up database'
-internal_database_backupfile="/tmp/${database_backupfile}"
-docker exec --env-file "${PASSFILE}" "${database_container}" pg_dump 'nextcloud' -cwv -h 'localhost' -U 'nextcloud' -f "${internal_database_backupfile}"
-docker cp "${database_container}":"${internal_database_backupfile}" "${BACKUP_DEST}"
-
-# Files backup
-for file in 'config' 'themes'; do
-	>&2 printf 'Copying %s\n' "${file}"
-	docker cp -a "${base_container}":"/var/www/html/${file}" "${BACKUP_DEST}"
-done
-
-# Turn off maintenance mode
-docker exec --user www-data "${base_container}" php occ maintenance:mode --off
-
-# Backup cleanup
-# Only keep 30 days of backups
->&2 echo 'Clean up old database backups'
-find "${BACKUP_DEST}" -name '*sqlbkp*' -type f -mtime +30 -print -delete
-
->&2 echo 'Done'

scripts/nextcloud/backup-database.sh

@@ -0,0 +1,78 @@
+#!/bin/bash
+# Backup Nextcloud database in a Kubernetes environment.
+# Usage: backup-database <destination>
+
+usage() {
+    >&2 printf "Usage: %s <destination>\n" "${0}"
+    exit "${1:-1}"
+}
+
+# Get options
+
+while getopts ":e:" option; do
+    case "${option}" in
+        e)
+            if ! [ -f "${OPTARG}" ]; then
+                >&2 printf "Error: Specified environment file does not exist: '%s'.\n" "${OPTARG}"
+            elif ! [ -r "${OPTARG}" ]; then
+                >&2 printf "Error: Specified environment file is not readable: '%s'.\n" "${OPTARG}"
+            fi
+            env_file="${OPTARG}"
+            ;;
+        *)
+            >&2 printf "Error: Invalid option: '%s'.\n" "${option}"
+            usage
+            ;;
+    esac
+done
+
+# Check arguments.
+
+if [ $# -ne 1 ]; then
+    >&2 printf "Error: You need to specify a destination.\n"
+    usage
+elif ! [ -d "${1}" ]; then
+    >&2 printf "Error: Specified destination does not exist or is not readable : '%s'.\n" "${1}"
+    usage
+else
+    destination="${1}"
+fi
+
+# Filename for database backup
+database_backupfile="nextcloud-sqlbkp_$(date +'%Y%m%d').bak"
+
+# Retrieve container names
+base_container="$( docker ps --format '{{.Names}}' | grep -E 'nextcloud-2_nextcloud-2-[0-9a-z]{10}-[0-9a-z]{5}' )"
+database_container="$( docker ps --format '{{.Names}}' | grep postgres_nextcloud-2-cnpg-main-1 )"
+
+if ! [[ -n "${base_container}" && -n "${database_container}" ]]; then
+    >&2 printf "Error: Not all containers could be found.\n"
+    exit 2
+fi
+
+# Abort entire script if any command fails
+set -e
+
+# Turn on maintenance mode
+docker exec "${base_container}" php occ maintenance:mode --on
+
+# Database backup
+echo 'Backing up database'
+host_database_backupfile="${destination}/${database_backupfile}"
+docker exec --env-file "${env_file:='./nextcloud.env'}" "${database_container}" pg_dump 'nextcloud' -cwv -h 'localhost' -U 'nextcloud' > "${host_database_backupfile}"
+
+# Files backup
+for file in 'config' 'themes'; do
+	printf 'Copying %s\n' "${file}"
+    docker cp -a "${base_container}":"/var/www/html/${file}" "${destination}"
+done
+
+# Turn off maintenance mode
+docker exec "${base_container}" php occ maintenance:mode --off
+
+# Backup cleanup
+# Only keep 30 days of backups
+printf 'Clean up old database backups'
+find "${destination}" -name '*sqlbkp*' -type f -mtime +30 -print -delete
+
+printf 'Done'