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Merge pull request #236 from endersonmaia/fix-README

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Fix README changed on PR-182
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Hongli Lai 2015-07-15 22:44:28 +02:00
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README.md
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@ -530,45 +530,19 @@ If you want to call the resulting image something else, pass the NAME variable,
The default baseimage-docker installs `syslog-ng`, `cron` and `sshd` services during the build process.
In case you don't need one or more of these services in your image, you can disable its installation and/or install the substituite service of your preference.
In case you don't need one or more of these services in your image, you can disable its installation.
You can user the `ENV` directive in your Dockerfile for these three variables :
* `DISABLE_SYSLOG`
* `DISABLE_SSH`
* `DISABLE_CRON`
For ex., if you want to disable ssh on your image :
#...
FROM phusion/baseimage:<VERSION>
# Set correct environment variables.
ENV HOME /root
# Disable SSH
ENV DISABLE_SSH 1
# Use baseimage-docker's init system.
CMD ["/sbin/my_init"]
# ...put your own build instructions here...
# Clean up APT when done.
RUN apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
If you don't want to use the `ENV` directive inside your Dockerfile and avoid creating another image layer, as shown in the following example, to prevent `sshd` from being installed into your image, set `1` to the `DISABLE_SSH` variable in the `./image/buildconfig` file.
As shown in the following example, to prevent `sshd` from being installed into your image, set `1` to the `DISABLE_SSH` variable in the `./image/buildconfig` file.
### In ./image/buildconfig
# ...
# Default services
# Set 1 to the service you want to disable
export DISABLE_SYSLOG=${DISABLE_SYSLOG:-0}
export DISABLE_SSH=${DISABLE_SSH:-1}
export DISABLE_CRON=${DISABLE_CRON:-0}
export DISABLE_SYSLOG=0
export DISABLE_SSH=1
export DISABLE_CRON=0
Then you can proceed with `docker build` command.
Then you can proceed with `make build` command.
<a name="conclusion"></a>
## Conclusion