
A public repository is a repository accessible using internet and have third party modules. By default ibiblio in m2 compatible mode is the public repository. It is also referred as maven 2 public repository.
By default ivy has its configurations in ivysettings.xml present in ivy.jar.
ivysettings.xml
<ivysettings>
<settings defaultResolver="default"/>
<include url="${ivy.default.settings.dir}/ivysettings-public.xml"/>
<include url="${ivy.default.settings.dir}/ivysettings-shared.xml"/>
<include url="${ivy.default.settings.dir}/ivysettings-local.xml"/>
<include url="${ivy.default.settings.dir}/ivysettings-main-chain.xml"/>
<include url="${ivy.default.settings.dir}/ivysettings-default-chain.xml"/>
</ivysettings>
To override public repository setting, update the contents of ivysettings-public.xml or create the ivysettings.xml in setting folder of your project.
ivysettings.xml
<ivysettings>
<settings defaultResolver="default"/>
<include url="http://customserver/ivy/ivysettings-public.xml"/>
<include url="${ivy.default.settings.dir}/ivysettings-shared.xml"/>
<include url="${ivy.default.settings.dir}/ivysettings-local.xml"/>
<include url="${ivy.default.settings.dir}/ivysettings-main-chain.xml"/>
<include url="${ivy.default.settings.dir}/ivysettings-default-chain.xml"/>
</ivysettings>
Update the default ivysetting-public.xml contents.
Original - ivysetting-public.xml
<ivysettings>
<resolvers>
<ibiblio name="public" m2compatible="true"/>
</resolvers>
</ivysettings>
Updated - ivysetting-public.xml
<ivysettings>
<resolvers>
<filesystem name="public">
<ivy pattern="/path/to/my/public/rep/[organisation]/[module]/ivy-[revision].xml" />
<artifact pattern="/path/to/my/public/rep/[organisation]/[module]/[artifact]-[revision].[ext]" />
</filesystem>
</resolvers>
</ivysettings>