Iwan/baseimage-docker_fr
1
0
Fork 0
forked from Docker/baseimage-docker
Code Issues Pull Requests Releases Wiki Activity

Allow running scripts during startup.

Browse Source
This commit is contained in:
Hongli Lai (Phusion)
2014-01-31 15:44:50 +01:00
parent 2ac41ee8ab
commit 62859010cb
3 changed files with 76 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

19
README.md
View File

@@ -101,6 +101,25 @@ Here's an example showing you how to a memached server runit entry can be made.
Note that the shell script must run the daemon **without letting it daemonize/fork it**. Usually, daemons provide a command line flag or a config file option for that.
### Running scripts during container startup
The baseimage-docker init system, `/sbin/my_init`, runs the following scripts during startup, in the following order:
* All executable scripts in `/etc/my_init.d`, if this directory exists. The scripts are run during in lexicographic order.
* The script `/etc/rc.local`, if this file exists.
All scripts must exit correctly, e.g. with exit code 0. If any script exits with a non-zero exit code, the booting will fail.
The following example shows how you can add a startup script. This script simply logs the time of boot to the file /tmp/boottime.txt.
### In logtime.sh (make sure this file is chmod +x):
#!/bin/sh
date > /tmp/boottime.txt
### In Dockerfile:
RUN mkdir -p /etc/my_init.d
ADD logtime.sh /etc/my_init.d/logtime.sh
### Login to the container
You can use SSH to login to any container that is based on baseimage-docker.