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