feat: support postgresql database

scripts/backup.sh

@@ -8,8 +8,10 @@ function clear_dir() {
 
 function backup_init() {
     NOW="$(date +"${BACKUP_FILE_DATE_FORMAT}")"
-    # backup vaultwarden database file
+    # backup vaultwarden database file (sqlite)
-    BACKUP_FILE_DB="${BACKUP_DIR}/db.${NOW}.sqlite3"
+    BACKUP_FILE_DB_SQLITE="${BACKUP_DIR}/db.${NOW}.sqlite3"
+    # backup vaultwarden database file (postgresql)
+    BACKUP_FILE_DB_POSTGRESQL="${BACKUP_DIR}/db.${NOW}.dump"
     # backup vaultwarden config file
     BACKUP_FILE_CONFIG="${BACKUP_DIR}/config.${NOW}.json"
     # backup vaultwarden rsakey files
@@ -22,16 +24,29 @@ function backup_init() {
     BACKUP_FILE_ZIP="${BACKUP_DIR}/backup.${NOW}.${ZIP_TYPE}"
 }
 
-function backup_db() {
+function backup_db_sqlite() {
     color blue "backup vaultwarden sqlite database"
 
     if [[ -f "${DATA_DB}" ]]; then
-        sqlite3 "${DATA_DB}" ".backup '${BACKUP_FILE_DB}'"
+        sqlite3 "${DATA_DB}" ".backup '${BACKUP_FILE_DB_SQLITE}'"
     else
         color yellow "not found vaultwarden sqlite database, skipping"
     fi
 }
 
+function backup_db_postgresql() {
+    color blue "backup vaultwarden postgresql database"
+
+    pg_dump -Fc -h "${PG_HOST}" -p "${PG_PORT}" -d "${PG_DBNAME}" -U "${PG_USERNAME}" -f "${BACKUP_FILE_DB_POSTGRESQL}"
+    if [[ $? != 0 ]]; then
+        color red "backup vaultwarden postgresql database failed"
+
+        send_mail_content "FALSE" "Backup failed at $(date +"%Y-%m-%d %H:%M:%S %Z"). Reason: Backup postgresql database failed."
+
+        exit 1
+    fi
+}
+
 function backup_config() {
     color blue "backup vaultwarden config"
 
@@ -90,7 +105,11 @@ function backup_sends() {
 function backup() {
     mkdir -p "${BACKUP_DIR}"
 
-    backup_db
+    case "${DB_TYPE}" in
+        SQLITE)     backup_db_sqlite ;;
+        POSTGRESQL) backup_db_postgresql ;;
+    esac
+
     backup_config
     backup_rsakey
     backup_attachments

scripts/entrypoint.sh

@@ -36,6 +36,13 @@ if [[ "$1" == "restore" ]]; then
     exit 0
 fi
 
+function configure_postgresql() {
+    if [[ "${DB_TYPE}" == "POSTGRESQL" ]]; then
+        echo "${PG_HOST}:${PG_PORT}:${PG_DBNAME}:${PG_USERNAME}:${PG_PASSWORD}" > ~/.pgpass
+        chmod 0600 ~/.pgpass
+    fi
+}
+
 function configure_timezone() {
     ln -sf "/usr/share/zoneinfo/${TIMEZONE}" "${LOCALTIME_FILE}"
 }
@@ -49,6 +56,7 @@ function configure_cron() {
 
 init_env
 check_rclone_connection
+configure_postgresql
 configure_timezone
 configure_cron
 

scripts/includes.sh

@@ -237,6 +237,7 @@ function init_env() {
     export_env_file
 
     init_env_dir
+    init_env_db
     init_env_mail
 
     # CRON
@@ -305,11 +306,19 @@ function init_env() {
 
     color yellow "========================================"
     color yellow "DATA_DIR: ${DATA_DIR}"
-    color yellow "DATA_DB: ${DATA_DB}"
     color yellow "DATA_CONFIG: ${DATA_CONFIG}"
     color yellow "DATA_RSAKEY: ${DATA_RSAKEY}"
     color yellow "DATA_ATTACHMENTS: ${DATA_ATTACHMENTS}"
     color yellow "DATA_SENDS: ${DATA_SENDS}"
+    color yellow "========================================"
+    color yellow "DB_TYPE: ${DB_TYPE}"
+
+    if [[ "${DB_TYPE}" == "POSTGRESQL" ]]; then
+        color yellow "DB_URL: ${PG_HOST}:${PG_PORT}:${PG_DBNAME}:${PG_USERNAME}:***(${#PG_PASSWORD} Chars)"
+    else
+        color yellow "DATA_DB: ${DATA_DB}"
+    fi
+
     color yellow "========================================"
     color yellow "CRON: ${CRON}"
 
@@ -369,6 +378,35 @@ function init_env_dir() {
     DATA_SENDS_BASENAME="$(basename "${DATA_SENDS}")"
 }
 
+function init_env_db() {
+    # DB_TYPE
+    get_env DB_TYPE
+
+    if [[ "${DB_TYPE^^}" == "POSTGRESQL" ]]; then # postgresql
+        DB_TYPE="POSTGRESQL"
+
+        # PG_HOST
+        get_env PG_HOST
+
+        # PG_PORT
+        get_env PG_PORT
+        PG_PORT="${PG_PORT:-"5432"}"
+
+        # PG_DBNAME
+        get_env PG_DBNAME
+        PG_DBNAME="${PG_DBNAME:-"vaultwarden"}"
+
+        # PG_USERNAME
+        get_env PG_USERNAME
+        PG_USERNAME="${PG_USERNAME:-"vaultwarden"}"
+
+        # PG_PASSWORD
+        get_env PG_PASSWORD
+    else # sqlite
+        DB_TYPE="SQLITE"
+    fi
+}
+
 function init_env_mail() {
     # MAIL_SMTP_ENABLE
     # MAIL_TO