panic: failed to init pg db: failed to connect to `host=safeline-pg user=safeline-ce database=safeline-ce`: dial error (dial tcp 172.22.222.2:5432: connect: no route to host)

启用防火墙的状态下，使用雷池初始化，会报错：

panic: failed to init pg db: failed to connect to host=safeline-pg user=safeline-ce database=safeline-ce: dial error (dial tcp 172.22.222.2:5432: connect: no route to host)

解决办法：

# 查看 Docker 网桥接口名称（safeline-ce 对应的网桥名）
ip link show | grep safeline-ce

# 放行该接口的所有流量
firewall-cmd --permanent --zone=trusted --add-interface=safeline-ce

# 重新加载规则
firewall-cmd --reload

panic: failed to init pg db: failed to connect to `host=safeline-pg user=safeline-ce database=safeline-ce`: dial error (dial tcp 172.22.222.2:5432: connect: no route to host)

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