Build your own DSL with go and HCl

DSL For domain specific languages .

Kubernetes、Docker compose、Jenkins CI、Gitlab CI or Ansible The main goal of such tools is to customize their behavior through configuration . They are like a black box , According to input （YAML/JSON The descriptor ） Will produce different outputs .

HCL representative HashiCorp Configuration language , It is better than JSON or YAML More powerful , Because it provides a mechanism . Implement dynamic configuration file , We'll see later .HCL Some of its advantages are listed below ：

• Even for non-technical people , It's also easy to read （ And writing ）.
• As we will do , Implement customization DSL Not rocket science , Because parsing 、 Validation and a lot of things are out of the box .
• A bunch of existing functions have been provided .
• image HashiCorp Such a well-known company participated in the project ,Terraform、Nomad and Vault And other great products have been used HCL. It means Ops The community is used to this grammar .

On the other hand , Based on HCL The custom of DSL, You will need to know Go.

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