About Back to Top

This command-line tool is simply a templating tool which consumes environment variables as an input and provides different kinds of helpers to transform a file input into another templated file.

Getting Started Back to Top

Installation

So far we are offering only a few different variants for the installation. You can choose between Docker or pre-built binaries which are stored on our download mirror and GitHub releases. Maybe we will also provide system packages for the major distributions later if we see the need for it.

Docker

Generally we are offering the images through quay.io/webhippie/templater and webhippie/templater, so feel free to choose one of the providers. Maybe we will come up with Kustomize manifests or some Helm chart.

Binaries

Simply download a binary matching your operating system and your architecture from our downloads or the GitHub releases and place it within your path like /usr/local/bin if you are using macOS or Linux.

Configuration

We provide overall three different variants of configuration. The variant based on environment variables and commandline flags are split up into global values and command-specific values.

Envrionment variables

If you prefer to configure the service with environment variables you can see the available variables below.

Global

TEMPLATER_LOG_LEVEL
Set logging level, defaults to info
TEMPLATER_LOG_COLOR
Enable colored logging, defaults to true
TEMPLATER_LOG_PRETTY
Enable pretty logging, defaults to true

Generate

TEMPLATER_GENERATE_PREFIX
Prefix of the env variables
TEMPLATER_GENERATE_OUTPUT
Different output than stdout

Commandline flags

If you prefer to configure the service with commandline flags you can see the available variables below.

Global

–log-level
Set logging level, defaults to info
–log-color
Enable colored logging, defaults to true
–log-pretty
Enable pretty logging, defaults to true

Generate

–prefix
Prefix of the env variables
–output
Different output than stdout

Configuration file

So far we support multiple file formats like json or yaml, if you want to get a full example configuration just take a look at our repository, there you can always see the latest configuration format. These example configs include all available options and the default values. The configuration file will be automatically loaded if it’s placed at /etc/templater/config.yml, ${HOME}/.templater/config.yml or $(pwd)/templater/config.yml.

Usage

The program provides a few sub-commands on execution. The available config methods have already been mentioned above. Generally you can always see a formated help output if you execute the binary similar to something like templater --help.

Building Back to Top

As this project is built with Go you need to install Go first. The installation of Go is out of the scope of this document, please follow the official documentation. After the installation of Go you need to get the sources:

git clone https://github.com/webhippie/templater.git
cd templater/

All required tool besides Go itself are bundled by Go modules, all you need is part of the Makfile:

make generate build

Finally you should have the binary within the bin/ folder now, give it a try with ./bin/templater -h to see all available options.

License Back to Top

This project is licensed under the Apache 2.0 license. For the license of the used libraries you have to check the respective sources.