Import alt-mysql plugin

2026-07-04 15:48:19 +02:00
commit d71fcf9ace
101 changed files with 18635 additions and 0 deletions
@@ -0,0 +1,99 @@
+#!/bin/bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+# shellcheck source=./mysql_common.sh
+source "$SCRIPT_DIR/mysql_common.sh"
+
+BASE_DIR="${BASE_DIR:-/home/admin/mysql_backup}"
+DATE_FORMAT="${DATE_FORMAT:-%d-%m-%Y}"
+ADD_TIME="${ADD_TIME:-0}"
+RETENTION="${RETENTION:-7}"
+ENABLE_COMPRESSION="${ENABLE_COMPRESSION:-1}"
+LOG_FILE="${LOG_FILE:-/var/log/mysql_backup.log}"
+
+timestamp() {
+    date '+%Y-%m-%d %H:%M:%S'
+}
+
+log() {
+    printf '[%s] %s\n' "$(timestamp)" "$*" | tee -a "$LOG_FILE"
+}
+
+dump_globals_file() {
+    local output_file="$1"
+    local tmp_file
+    tmp_file="$(mktemp)"
+    {
+        echo "-- Global users and grants for MySQL"
+        echo "-- Generated at $(timestamp)"
+    } > "$tmp_file"
+
+    while IFS=$'\t' read -r db_user db_host; do
+        [ -n "$db_user" ] || continue
+        [ -n "$db_host" ] || continue
+        printf "DROP USER IF EXISTS '%s'@'%s';\n" "$db_user" "$db_host" >> "$tmp_file"
+        mysql_exec mysql -Nse "SHOW CREATE USER '${db_user}'@'${db_host}'" >> "$tmp_file" || true
+        echo ";" >> "$tmp_file"
+        while IFS= read -r grant_line; do
+            [ -n "$grant_line" ] || continue
+            printf "%s;\n" "$grant_line" >> "$tmp_file"
+        done < <(mysql_exec mysql -Nse "SHOW GRANTS FOR '${db_user}'@'${db_host}'" || true)
+        echo >> "$tmp_file"
+    done < <(
+        mysql_exec mysql -Nse "
+            SELECT user, host
+            FROM mysql.user
+            WHERE user <> ''
+              AND user NOT IN ('mysql.sys', 'mysql.session', 'mysql.infoschema', 'mariadb.sys')
+            ORDER BY user, host
+        " || true
+    )
+
+    if [ "$ENABLE_COMPRESSION" = "1" ]; then
+        gzip -9 < "$tmp_file" > "$output_file"
+    else
+        mv "$tmp_file" "$output_file"
+        return 0
+    fi
+    rm -f "$tmp_file"
+}
+
+mysql_load_alt_credentials
+
+mkdir -p "$BASE_DIR"
+
+if [ "$ADD_TIME" = "1" ]; then
+    DATE_STR="$(date +"${DATE_FORMAT}_%H-%M")"
+else
+    DATE_STR="$(date +"${DATE_FORMAT}")"
+fi
+BACKUP_DIR="${BASE_DIR}/${DATE_STR}"
+mkdir -p "$BACKUP_DIR"
+
+log "Start backupu MySQL do ${BACKUP_DIR}"
+
+GLOBALS_FILE="${BACKUP_DIR}/_globals.sql"
+if [ "$ENABLE_COMPRESSION" = "1" ]; then
+    GLOBALS_FILE="${GLOBALS_FILE}.gz"
+fi
+dump_globals_file "$GLOBALS_FILE"
+log "Zapisano ${GLOBALS_FILE##*/}"
+
+while IFS= read -r db_name; do
+    [ -n "$db_name" ] || continue
+    target_file="${BACKUP_DIR}/${db_name}.sql"
+    if [ "$ENABLE_COMPRESSION" = "1" ]; then
+        mysqldump_exec --single-transaction --skip-lock-tables --routines --triggers --events --databases "$db_name" | gzip -9 > "${target_file}.gz"
+        log "Backup ${db_name} -> ${target_file##*/}.gz"
+    else
+        mysqldump_exec --single-transaction --skip-lock-tables --routines --triggers --events --databases "$db_name" > "$target_file"
+        log "Backup ${db_name} -> ${target_file##*/}"
+    fi
+done < <(mysql_non_system_databases)
+
+if [ "$RETENTION" -gt 0 ]; then
+    find "$BASE_DIR" -mindepth 1 -maxdepth 1 -type d -mtime +"$RETENTION" -exec rm -rf {} +
+fi
+
+log "Backup MySQL zakończony."