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dsh_shenxian/scripts/setup-pg-47.sh
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#!/usr/bin/env bash
. "$(cd "$(dirname "$0")/.." && pwd)/config/load.sh"
# 在 47 初始化「控制面 PG」:独立数据目录 <data-root>-pg + 专用 unit dshs-pg.service
# 设计口径:控制面 DB 在 Manager 侧、仅 loopback、scram 认证。
set -uo pipefail
PGDATA="${DSH_PG_DATA_DIR}"
PGPORT=15432
DBPW="${DSHS_PG_PASSWORD:-dshs_cluster_2026}"
PGVER=$(/usr/bin/postgres --version | grep -oE '[0-9]+' | head -1)
echo " PG 版本: $(/usr/bin/postgres --version)"
# 别让发行版的默认单元意外起来(我们用自己的 unit + 自己的数据目录)
systemctl disable --now postgresql 2>/dev/null >/dev/null || true
if [ ! -f "$PGDATA/PG_VERSION" ]; then
install -d -o postgres -g postgres -m 700 "$PGDATA"
su - postgres -c "/usr/bin/initdb -D $PGDATA -E UTF8 --locale=C.UTF-8 --auth-local=peer --auth-host=scram-sha-256" >/tmp/initdb.log 2>&1 \
&& echo " ✓ initdb 完成" || { echo " ✗ initdb 失败"; tail -5 /tmp/initdb.log; exit 1; }
cat >> "$PGDATA/postgresql.conf" <<CONF
# ── DSHS 控制面(2026-09-15 集群化切换)──
listen_addresses = '127.0.0.1'
port = $PGPORT
unix_socket_directories = '/var/run/postgresql'
max_connections = 100
shared_buffers = 128MB
CONF
chown postgres:postgres "$PGDATA/postgresql.conf"
echo " ✓ 已写入 listen=127.0.0.1 port=$PGPORT"
fi
cat > /etc/systemd/system/dshs-pg.service <<UNIT
[Unit]
Description=DSHS control-plane PostgreSQL (cluster mode)
After=network.target
[Service]
Type=notify
User=postgres
Group=postgres
ExecStart=/usr/bin/postgres -D $PGDATA
ExecReload=/bin/kill -HUP \$MAINPID
KillMode=mixed
TimeoutStopSec=30
Restart=on-failure
[Install]
WantedBy=multi-user.target
UNIT
systemctl daemon-reload
systemctl enable --now dshs-pg >/dev/null 2>&1
sleep 3
echo " dshs-pg: $(systemctl is-active dshs-pg) 监听: $(ss -lntp 2>/dev/null | grep -c $PGPORT)"
# 角色 + 库(幂等)
su - postgres -c "/usr/bin/psql -p $PGPORT -tAc \"select 1 from pg_roles where rolname='dshs'\"" 2>/dev/null | grep -q 1 \
|| su - postgres -c "/usr/bin/psql -p $PGPORT -c \"create role dshs login password '$DBPW'\"" >/dev/null 2>&1
su - postgres -c "/usr/bin/psql -p $PGPORT -tAc \"select 1 from pg_database where datname='dshs'\"" 2>/dev/null | grep -q 1 \
|| su - postgres -c "/usr/bin/psql -p $PGPORT -c \"create database dshs owner dshs\"" >/dev/null 2>&1
echo " --- 连接自检(dshs 角色) ---"
PGPASSWORD="$DBPW" /usr/bin/psql -h 127.0.0.1 -p $PGPORT -U dshs -d dshs -tAc "select current_user||'@'||current_database()||' pg='||version()" 2>&1 | head -1 | cut -c1-90
echo " 连接串(含密码,勿外传): postgres://dshs:$DBPW@127.0.0.1:$PGPORT/dshs"