Solution to incorrect access log time when deploying Nginx in Docker
In the process of operating the website, I never took the logs too seriously. Although logging was turned on, I never analyzed the logs carefully. Today, when I looked at the logs on a whim, I found that the recorded time was 8 hours less than the server time. 8 hours, this is a special number. We know that the UTC time zone is the standard world time zone, and UTC+8 is 8 hours faster than the world time, and we happen to be in this time zone. My website is deployed using Docker+Nginx, so it is inferred here that the time zone used by Docker may be UTC. The time zone where our server is located is 8 hours faster than it. To verify our conjecture, use the following command to enter the docker container for viewing
$ docker exec -it nginx bash
After entering the container, execute datethe command and the following results are displayed:
Obviously, the time zone of the docker container is UTC. Knowing the problem, the next step is to correct the time zone of the docker container. There are basically three ways to do this online:
- localtime of shared hosting
- Copy the localtime of the host
- Creating a custom Dockerfile
I use the first method here, sharing the localtime of the host . I use it docker-compse. So just add a line of file mapping in the configuration file
version: '3'
services:
web:
...
volumes:
...
- /etc/localtime:/etc/localtime
...
...
Then rebuild the web image and start the container
$ docker-compose up web
After that, the time of the logs recorded by nginx will be synchronized with the server.
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