报错信息：
harbor-db容器重启报错：initdb: error: directory “/var/lib/postgresql/data/pg13“ exists but is not empty
现象：
在重启docker服务或者通过docker-compose重启harbor服务时，harbor-db容器都一直处于Restarting状态，无法恢复UP状态。
Harbor版本：v2.3.2
查看日志：
1.查看harbor所有容器启动日志路径
代码语言：javascript复制[root@k8s-master harbor]# vim harbor.yml
...
112 # Log configurations
113 log:
114 # options are debug, info, warning, error, fatal
115 level: info
116 # configs for logs in local storage
117 local:
118 # Log files are rotated log_rotate_count times before being removed. If count is 0, old versions are remov ed rather than rotated.
119 rotate_count: 50
120 # Log files are rotated only if they grow bigger than log_rotate_size bytes. If size is followed by k, the size is assumed to be in kilobytes.
121 # If the M is used, the size is in megabytes, and if G is used, the size is in gigabytes. So size 100, siz e 100k, size 100M and size 100G
122 # are all valid.
123 rotate_size: 200M
124 # The directory on your host that store log
125 location: /var/log/harbor //Harbor所有容器运行的日志存放路径
2.查看harbor-db容器启动日志
代码语言：javascript复制[root@k8s-master harbor]# cat /var/log/harbor/postgresql.log | tail -20
...
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: This user must also own the server process.
Oct 13 08:14:22 172.23.0.1 postgresql[28777]:
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: The database cluster will be initialized with locales
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: COLLATE: en_US.UTF-8
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: CTYPE: en_US.UTF-8
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: MESSAGES: C
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: MONETARY: C
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: NUMERIC: C
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: TIME: C
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: The default text search configuration will be set to "english".
Oct 13 08:14:22 172.23.0.1 postgresql[28777]:
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: Data page checksums are disabled.
Oct 13 08:14:22 172.23.0.1 postgresql[28777]:
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: initdb: error: directory "/var/lib/postgresql/data/pg13" exists but is not empty
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: If you want to create a new database system, either remove or empty
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: the directory "/var/lib/postgresql/data/pg13" or run initdb
Oct 13 08:14:22 172.23.0.1 postgresql[28777]: with an argument other than "/var/lib/postgresql/data/pg13".
解决：
1.从上面日志中的提示directory "/var/lib/postgresql/data/pg13" exists but is not empty可以清楚/var/lib/postgresql/data/pg13这个目录存在，并且不为空，但是在宿主机上找不到这个目录。
代码语言：javascript复制[root@k8s-master harbor]# ll /var/lib/postgresql/data/pg13
ls: 无法访问/var/lib/postgresql/data/pg13: 没有那个文件或目录
2.于是想到查看一下docker-compose的yaml文件，查看一下harbor-db容器的挂载目录的信息。
代码语言：javascript复制[root@k8s-master harbor]# vim docker-compose.yml
...
postgresql:
image: goharbor/harbor-db:v2.3.2
container_name: harbor-db
restart: always
cap_drop:
- ALL
cap_add:
- CHOWN
- DAC_OVERRIDE
- SETGID
- SETUID
volumes:
- /home/harbor/data/database:/var/lib/postgresql/data:z //挂载目录信息
networks:
harbor:
dns_search: .
env_file:
- ./common/config/db/env
depends_on:
- log
logging:
driver: "syslog"
options:
syslog-address: "tcp://127.0.0.1:1514"
tag: "postgresql"
...
3.从docker-compose.yaml文件中可以看到宿主机上的/home/harbor/data/database目录挂载到容器中的/var/lib/postgresql/data目录下，那会不会是/home/harbor/data/database目录不为空呢？删除掉它试试。
代码语言：javascript复制[root@k8s-master harbor]# rm -rf /home/harbor/data/database
4.删除/home/harbor/data/database目录后将harbor运行的容器删除，在重新创建并启动。
代码语言：javascript复制[root@k8s-master harbor]# docker-compose down -v
Stopping harbor-jobservice ... done
Stopping nginx ... done
Stopping harbor-core ... done
Stopping redis ... done
Stopping harbor-portal ... done
Stopping harbor-db ... done
Stopping registry ... done
Stopping registryctl ... done
Stopping harbor-log ... done
Removing harbor-jobservice ... done
Removing nginx ... done
Removing harbor-core ... done
Removing redis ... done
Removing harbor-portal ... done
Removing harbor-db ... done
Removing registry ... done
Removing registryctl ... done
Removing harbor-log ... done
Removing network harbor_harbor
[root@k8s-master harbor]# docker-compose up -d
Creating nginx ... done
Creating registryctl ...
Creating registry ...
Creating harbor-db ...
Creating redis ...
Creating harbor-portal ...
Creating harbor-core ...
Creating harbor-jobservice ...
Creating nginx ...
[root@k8s-master harbor]# docker-compose ps
Name Command State Ports
--------------------------------------------------------------------------------------
harbor-core /harbor/entrypoint.sh Up
harbor-db /docker-entrypoint.sh Up
harbor-jobservice /harbor/entrypoint.sh Up
harbor-log /bin/sh -c /usr/local/bin/ ... Up 127.0.0.1:1514->10514/tcp
harbor-portal nginx -g daemon off; Up
nginx nginx -g daemon off; Up 0.0.0.0:80->8080/tcp
redis redis-server /etc/redis.conf Up
registry /home/harbor/entrypoint.sh Up
registryctl /home/harbor/start.sh Up
可以看到harbor-db已经启动成功，恢复正常了。
原因：
1.出现如上的原因很大可能是之前在这台机器上安装过Harbor服务，第一次安装的时候在挂载目录下创建了数据，再次安装时需要将之前的脏数据都清空才可以；
2.还遇到过一种情况，那就是在清理了挂载目录的脏数据之后重启docker服务或者使用docker-compose重启Harbor服务时，harbor-db容器还是一直处于Restarting状态，这种情况下可以将Harbor所有容器都down -v删除掉，修改harbor.yaml中data_volume数据挂载目录，再重新up -d（成功过）。或者换一个Harbor的版本，实测Harbor v2.1.1版本可以（之前是Harbor v2.3.2）。
