Variables are normally not "global". They are scoped to the block in which they are declared. Earlier, we assigned `$relname` in the top level of the template. That variable will be in scope for the entire template. But in our last example, `$key` and `$val` will only be in scope inside of the `{{range...}}{{end}}` block.
However, there is one variable that is always global - `$` - this
variable will always point to the root context. This can be very
useful when you are looping in a range need to know the chart's release
name.
However, there is one variable that is always global - `$` - this variable will always point to the root context. This can be very useful when you are looping in a range and need to know the chart's release name.