aggiunta backup logic per database

mariadb-backup/mariadb-backup-full.sh

@@ -3,7 +3,7 @@ set -euo pipefail
 
 ulimit -n 65536
 
-BACKUP_BASE=/var/backups/nfs
+BACKUP_BASE=/var/backups/tscale01
 TIMESTAMP=$(date +%Y%m%d-%H%M%S)
 TARGET="$BACKUP_BASE/backup-full-$TIMESTAMP"
 LOGFILE=/var/log/mariadb-backup.log

mariadb-backup/mariadb-backup-incremental.sh

@@ -3,7 +3,7 @@ set -euo pipefail
 
 ulimit -n 65536
 
-BACKUP_BASE=/var/backups/nfs
+BACKUP_BASE=/var/backups/tscale01
 FULL_PREFIX=backup-full-
 INC_PREFIX=backup-inc-
 TIMESTAMP=$(date +%Y%m%d-%H%M%S)

mariadb-backup/mariadb-backup-logic-per-database.sh

@@ -0,0 +1,104 @@
+#!/bin/bash
+set -euo pipefail
+
+ulimit -n 65536
+
+BACKUP_BASE=/var/backups/tscale01
+PREFIX=eqn-bck-logic-
+TIMESTAMP=$(date +%Y%m%d-%H%M%S)
+TARGET="$BACKUP_BASE/${PREFIX}${TIMESTAMP}"
+
+LOGFILE=/var/log/mariadb-backup.log
+LOCKFILE=/var/lock/mariadb-backup.lock
+
+SERVER_NAME=$(hostname -s)
+
+# binari e opzioni (root senza password)
+MYSQL_BIN=$(command -v mariadb || true)
+MYSQLDUMP_BIN=$(command -v mariadb-dump || true)
+MYSQLDUMP_OPTS="--user=root --single-transaction --quick --skip-lock-tables"
+
+# logfile
+touch "$LOGFILE"
+chown root:root "$LOGFILE"
+chmod 600 "$LOGFILE"
+
+(
+  flock -n 9 || { echo "[$(date '+%F %T')] [$SERVER_NAME] SKIP: another backup is running" >> "$LOGFILE"; exit 0; }
+
+  if [ -z "$MYSQL_BIN" ]; then
+    echo "[$(date '+%F %T')] [$SERVER_NAME] ERROR: mariadb client not found in PATH" >> "$LOGFILE"
+    exit 1
+  fi
+
+  if [ -z "$MYSQLDUMP_BIN" ]; then
+    echo "[$(date '+%F %T')] [$SERVER_NAME] ERROR: mariadb-dump not found in PATH" >> "$LOGFILE"
+    exit 1
+  fi
+
+  mkdir -p "$TARGET"
+  chown mysql:mysql "$TARGET"
+  chmod 750 "$TARGET"
+
+  TMPLOG=$(mktemp /tmp/mariadb-backup-logic.XXXXXX)
+
+  echo "---------------------" >> "$LOGFILE"
+  echo "[$(date '+%F %T')] [$SERVER_NAME] START logic backup (per-database) $TARGET" >> "$LOGFILE"
+
+  # elenco database (escludo schemi di sistema)
+  DB_LIST=$($MYSQL_BIN -N -e "SHOW DATABASES" | grep -vE '^(information_schema|performance_schema|mysql|sys)$' || true)
+
+  if [ -z "$DB_LIST" ]; then
+    echo "[$(date '+%F %T')] [$SERVER_NAME] WARNING: no user databases found to dump" >> "$LOGFILE"
+  fi
+
+  FAILED=0
+  FAILED_DBS=""
+
+  for db in $DB_LIST; do
+    DUMPFILE="$TARGET/${db}.sql"
+    echo "[$(date '+%F %T')] [$SERVER_NAME] START dump database '$db' -> $DUMPFILE" >> "$LOGFILE"
+
+    if $MYSQLDUMP_BIN $MYSQLDUMP_OPTS "$db" >"$DUMPFILE" 2>"$TMPLOG"; then
+      echo "[$(date '+%F %T')] [$SERVER_NAME] END dump database '$db'" >> "$LOGFILE"
+    else
+      echo "[$(date '+%F %T')] [$SERVER_NAME] ERROR dumping database '$db'. See $TMPLOG" >> "$LOGFILE"
+      tail -n 100 "$TMPLOG" >> "$LOGFILE"
+      FAILED=1
+      FAILED_DBS="$FAILED_DBS $db"
+      # continuo con i successivi
+    fi
+  done
+
+  # misura dimensioni complessive
+  size_apparent_bytes=$(find "$TARGET" -type f -printf '%s\n' 2>/dev/null | awk '{s+=$1} END{print s+0}')
+  size_apparent_human=$(numfmt --to=iec --suffix=B "$size_apparent_bytes" 2>/dev/null || echo "${size_apparent_bytes}B")
+
+  size_disk_bytes=$(du -s --block-size=1 "$TARGET" 2>/dev/null | cut -f1 || echo 0)
+  size_disk_human=$(numfmt --to=iec --suffix=B "$size_disk_bytes" 2>/dev/null || echo "${size_disk_bytes}B")
+
+  echo "[$(date '+%F %T')] [$SERVER_NAME] SIZE apparent: $size_apparent_human ($size_apparent_bytes bytes) for $TARGET" >> "$LOGFILE"
+  echo "[$(date '+%F %T')] [$SERVER_NAME] SIZE on-disk: $size_disk_human ($size_disk_bytes bytes) for $TARGET" >> "$LOGFILE"
+
+  if [ "$FAILED" -eq 0 ]; then
+    echo "[$(date '+%F %T')] [$SERVER_NAME] RESULT: OK, all databases dumped successfully" >> "$LOGFILE"
+  else
+    echo "[$(date '+%F %T')] [$SERVER_NAME] RESULT: PARTIAL, failed databases:$FAILED_DBS" >> "$LOGFILE"
+  fi
+
+  rm -f "$TMPLOG"
+
+  # rotazione: mantieni 7 giorni per i logic
+  TO_DELETE=$(find "$BACKUP_BASE" -maxdepth 1 -type d -name "${PREFIX}*" -mtime +7 -print 2>/dev/null || true)
+
+  if [ -n "$TO_DELETE" ]; then
+    echo "[$(date '+%F %T')] [$SERVER_NAME] ROTATE: removing old logic backups:" >> "$LOGFILE"
+    echo "$TO_DELETE" >> "$LOGFILE"
+    echo "$TO_DELETE" | tr '\n' '\0' | xargs -0 -r rm -rf --
+  else
+    echo "[$(date '+%F %T')] [$SERVER_NAME] ROTATE: no logic backups to remove (<=7 days)" >> "$LOGFILE"
+  fi
+
+  echo " " >> "$LOGFILE"
+
+) 9>"$LOCKFILE"

mariadb-backup/mariadb-backup-logic.sh

@@ -3,7 +3,7 @@ set -euo pipefail
 
 ulimit -n 65536
 
-BACKUP_BASE=/var/backups/nfs
+BACKUP_BASE=/var/backups/tscale01
 PREFIX=backup-logic-
 TIMESTAMP=$(date +%Y%m%d-%H%M%S)
 TARGET="$BACKUP_BASE/${PREFIX}${TIMESTAMP}"