Plugins

All available Twig files for your templates need to be based in your Orca project directory.
With plugins it's possible to add an additional directory (anywhere) with more components and scripts.

Manifest

Please configure your manifest.json and provide a folder for all your additional scripts and plugins.

Component

In that folder create a new sub folder structure like '/mysql/5.7" and place an "install.sh.twig" file in it.
You can use any individual code and script.

We personally like to create reusable installer components that receive parameters for their individual integration.
These files can also be shared with a community.
Here is a sample of a MySQL installation with custom root password: 

                            
RUN echo debconf mysql-server/root_password password {{ pwd }} | debconf-set-selections

RUN echo debconf mysql-server/root_password_again password {{ pwd }} | debconf-set-selections



RUN DEBIAN_FRONTEND=noninteractive \

&& apt-get update \

&& apt-get install -y -q mysql-server \

&& usermod -d /var/lib/mysql/ mysql \

&& rm -rf /var/lib/apt/lists/* /var/cache/apt/*

Usage

Now that we have created our reusable script, we simply add it to the part of our Dockerfile where we want to install it.
Include the Twig file from the plugin folder and provide your parameter for the password.
In our case, the password is originally coming from an Orca variable. 

                            
{% include 'components/mysql/5.7/install.sh.twig' with { 'pwd' : db.pwd } %}

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