目前,我想为Postgres挂载日志文件夹,这样即使主机重启,日志信息也能保留。
我使用以下的docker-compose.yml
文件:
version: '2'
services:
postgres:
image: postgres:latest
restart: always
environment:
- POSTGRES_USER=postgres
- POSTGRES_PASSWORD=55F4rGFwsXXXXXX
ports:
- "5432:5432"
volumes:
- postgres_data:/var/lib/postgresql/data
- postgres_logs:/logs
# Make Postgres log to a file.
# More on logging with Postgres: https://www.postgresql.org/docs/current/static/runtime-config-logging.html
command: postgres -c logging_collector=on -c log_destination=stderr -c log_directory=/logs
volumes:
postgres_data:
postgres_logs:
然而,我遇到了以下权限被拒绝的错误。
postgres_1 | 2018-02-19 09:03:45.359 UTC [1] LOG: database system is shut down
postgres_1 | 2018-02-19 09:04:45.963 UTC [1] LOG: listening on IPv4 address "0.0.0.0", port 5432
postgres_1 | 2018-02-19 09:04:45.963 UTC [1] LOG: listening on IPv6 address "::", port 5432
postgres_1 | 2018-02-19 09:04:45.965 UTC [1] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
postgres_1 | 2018-02-19 09:04:45.972 UTC [1] FATAL: could not open log file "/logs/postgresql-2018-02-19_090445.log": Permission denied
postgres_1 | 2018-02-19 09:04:45.974 UTC [1] LOG: database system is shut down
postgres_1 | 2018-02-19 09:05:46.741 UTC [1] LOG: listening on IPv4 address "0.0.0.0", port 5432
postgres_1 | 2018-02-19 09:05:46.741 UTC [1] LOG: listening on IPv6 address "::", port 5432
postgres_1 | 2018-02-19 09:05:46.744 UTC [1] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
postgres_1 | 2018-02-19 09:05:46.753 UTC [1] FATAL: could not open log file "/logs/postgresql-2018-02-19_090546.log": Permission denied
postgres_1 | 2018-02-19 09:05:46.755 UTC [1] LOG: database system is shut down
postgres_1 | 2018-02-19 09:06:47.366 UTC [1] LOG: listening on IPv4 address "0.0.0.0", port 5432
postgres_1 | 2018-02-19 09:06:47.366 UTC [1] LOG: listening on IPv6 address "::", port 5432
postgres_1 | 2018-02-19 09:06:47.368 UTC [1] LOG: listening on Unix socket "/var/run/postgresql/.s.PGSQL.5432"
postgres_1 | 2018-02-19 09:06:47.375 UTC [1] FATAL: could not open log file "/logs/postgresql-2018-02-19_090647.log": Permission denied
postgres_1 | 2018-02-19 09:06:47.377 UTC [1] LOG: database system is shut down
有人知道我如何解决这种错误吗?
docker-compose build
和docker-compose up -d
命令之前,我会使用docker-compose down -v
明确删除卷,并在此之后再次检查,使用docker-compose logs --follow postgres
。 - Cheok Yan Cheng- ./:/logs:z
是映射到主机本地文件夹的。我想要的是映射到一个Docker卷。 - Cheok Yan ChengRUN mkdir /postgres_logs
和RUN chown postgres:postgres /postgres_logs
可以解决这个问题。 - Cheok Yan Cheng