Tao Wang d545e32b56 Add environment variable support for Docker image (#2201) ... * Add `gettext` dependencies as we need `envsubst` command; * Modified s6's gitea setup script, instead of `cp` the template if no `app.ini` exist, it will substitude the envvars and generate the new `app.ini`; * Make `/docker/etc/templates/app.ini` a template contains environment variables; Signed-off-by: Tao Wang <twang2218@gmail.com>		2017-10-31 16:55:46 +08:00
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