[post] How to use go's builtin template

[at15]

Type

• request post from @at15

Related

Description

Go's built in text/template and html/template is pretty useful for generating code, custom output (e.g. docker, kubectl, helm).
However every time I need to use it I need to learn it again ... this post should list common syntax (and pitfalls)

• reference variables
• writing for loop
• custom function

And common places to use go template

• code generator
• docker
• helm

Update

• 2020-08-07 Add usage section