diff --git a/cluster/postgres/standby-entrypoint.sh b/cluster/postgres/standby-entrypoint.sh
deleted file mode 100755
index e80e11f..0000000
--- a/cluster/postgres/standby-entrypoint.sh
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/bin/bash
-set -e
-
-# PostgreSQL standby bootstrap entrypoint
-# If data dir is empty, pull base backup from primary, then hand off to postgres entrypoint
-
-PRIMARY_HOST="${PG_PRIMARY_HOST:-host1}"
-PRIMARY_PORT="${PG_PRIMARY_PORT:-5432}"
-REPL_PASSWORD="${REPL_PASSWORD:-Bjang09@686-Repl}"
-PGDATA="/var/lib/postgresql/data"
-
-if [ ! -s "$PGDATA/PG_VERSION" ]; then
-  echo "[standby] Data directory empty, bootstrapping from primary $PRIMARY_HOST:$PRIMARY_PORT"
-
-  # Wait for primary to accept connections
-  for i in $(seq 1 30); do
-    if PGPASSWORD="$REPL_PASSWORD" pg_isready -h "$PRIMARY_HOST" -p "$PRIMARY_PORT" -U replicator >/dev/null 2>&1; then
-      break
-    fi
-    echo "[standby] Waiting for primary to be ready (attempt $i/30)..."
-    sleep 2
-  done
-
-  # Pull base backup from primary
-  echo "[standby] Running pg_basebackup..."
-  PGPASSWORD="$REPL_PASSWORD" pg_basebackup -h "$PRIMARY_HOST" -p "$PRIMARY_PORT" \
-    -U replicator -D "$PGDATA" -P -R \
-    -S replication_slot_slave --checkpoint=fast --wal-method=stream
-
-  # Ensure standby signal file exists
-  touch "$PGDATA/standby.signal"
-
-  echo "[standby] Bootstrap complete, starting standby..."
-fi
-
-# Hand off to the standard postgres entrypoint
-exec /usr/local/bin/docker-entrypoint.sh "$@"
diff --git a/docker-compose-infra-main.yml b/docker-compose-infra-main.yml
index 76fec95..397b5b4 100644
--- a/docker-compose-infra-main.yml
+++ b/docker-compose-infra-main.yml
@@ -28,7 +28,6 @@ services:
       - ../data/postgres:/var/lib/postgresql/data
       - ./sql/init.sql:/docker-entrypoint-initdb.d/init.sql
       - ./sql/init-replication.sql:/docker-entrypoint-initdb.d/init-replication.sql
-      - ./sql/init-pg-hba.sh:/docker-entrypoint-initdb.d/init-pg-hba.sh
     command: ["postgres", "-c", "wal_level=replica", "-c", "max_wal_senders=10", "-c", "max_replication_slots=10", "-c", "hot_standby=on"]
     networks:
       - redfuture-net
@@ -48,7 +47,6 @@ services:
         condition: service_healthy
     volumes:
       - /data/pgsql/backup:/backup
-      - ./scripts/postgres-backup.sh:/usr/local/bin/backup.sh
     environment:
       PGUSER: postgres
       PGPASSWORD: Bjang09@686^*^
@@ -56,9 +54,19 @@ services:
       PGPORT: 5432
       BACKUP_DIR: /backup
       RETENTION_DAYS: 7
-    command: sh /usr/local/bin/backup.sh
-    networks:
-      - redfuture-net
+    entrypoint: ["/bin/sh", "-c"]
+    command:
+      - |
+        set -e
+        mkdir -p "/backup"
+        while true; do
+          f="backup_$(date +%Y%m%d_%H%M%S).sql.gz"
+          echo "[$(date '+%Y-%m-%d %H:%M:%S')] Starting backup: $${f}"
+          pg_dumpall -h postgres -U postgres | gzip > "/backup/$${f}"
+          echo "[$(date '+%Y-%m-%d %H:%M:%S')] Backup complete"
+          find /backup -name "backup_*.sql.gz" -mtime +7 -delete 2>/dev/null || true
+          sleep 86400
+        done
 
   # ---- Redis ----
   redis:
diff --git a/scripts/postgres-backup.sh b/scripts/postgres-backup.sh
deleted file mode 100755
index 3f3d7a8..0000000
--- a/scripts/postgres-backup.sh
+++ /dev/null
@@ -1,39 +0,0 @@
-#!/bin/sh
-set -e
-
-CREDENTIALS="-h ${PGHOST:-postgres} -U ${PGUSER:-postgres}"
-BACKUP_DIR=${BACKUP_DIR:-/backup}
-RETENTION_DAYS=${RETENTION_DAYS:-7}
-
-# 自动创建备份目录
-mkdir -p "$BACKUP_DIR"
-
-backup() {
-  local filename="backup_$(date +%Y%m%d_%H%M%S).sql.gz"
-  echo "[$(date +%Y-%m-%d\ %H:%M:%S)] Starting backup: $filename"
-  pg_dumpall $CREDENTIALS | gzip > "$BACKUP_DIR/$filename"
-  echo "[$(date +%Y-%m-%d\ %H:%M:%S)] Backup complete: $(du -h "$BACKUP_DIR/$filename" | cut -f1)"
-}
-
-cleanup() {
-  local count=$(find "$BACKUP_DIR" -name "backup_*.sql.gz" -mtime +$RETENTION_DAYS | wc -l)
-  if [ "$count" -gt 0 ]; then
-    find "$BACKUP_DIR" -name "backup_*.sql.gz" -mtime +$RETENTION_DAYS -delete
-    echo "[$(date +%Y-%m-%d\ %H:%M:%S)] Cleaned up $count backup(s) older than $RETENTION_DAYS days"
-  fi
-}
-
-# Run immediately on startup
-backup
-cleanup
-
-# Schedule: calculate seconds until next 2:00 AM, then run every 24h
-while true; do
-  now=$(date +%s)
-  target=$(date -d "tomorrow 02:00" +%s)
-  sleep_seconds=$((target - now))
-  echo "[$(date +%Y-%m-%d\ %H:%M:%S)] Next backup scheduled at $(date -d @$target '+%Y-%m-%d %H:%M:%S')"
-  sleep $sleep_seconds
-  backup
-  cleanup
-done
diff --git a/sql/init-pg-hba.sh b/sql/init-pg-hba.sh
deleted file mode 100644
index 9d9031d..0000000
--- a/sql/init-pg-hba.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-# 添加 pg_hba 复制访问规则（在 docker-entrypoint 初始化后执行）
-echo "host replication all 0.0.0.0/0 md5" >> "$PGDATA/pg_hba.conf"