feat: add template common.container

templates/_utils.tpl

@@ -0,0 +1,34 @@
+{{/* vim: set filetype=mustache: */}}
+
+{{- /*
+Merge one or more YAML templates and output the result.
+This takes an list of values:
+- the first item is the top context
+- the rest items are template names of the templates, the former one will override the latter.
+*/ -}}
+{{- define "common.utils.merge" -}}
+{{- $top := first . -}}
+{{- $dest := dict -}}
+{{- range (rest .) -}}
+  {{- $src := fromYaml (include . $top) | default (dict) -}}
+  {{- $dest = merge $dest $src -}}
+{{- end -}}
+{{- toYaml $dest -}}
+{{- end -}}
+
+{{- /*
+Flatten list of arguments before rendering the given template.
+This takes an list of values:
+- the first item is the template name to be rendered
+- the second item is either an list of arguments or a single argument
+- the rest items are the appended arguments
+*/ -}}
+{{- define "common.utils.flattenCall" -}}
+{{- $tpl := first . -}}
+{{- $args := index . 1 -}}
+{{- if not (typeIs "[]interface {}" $args) -}}
+  {{- $args = list $args -}}
+{{- end -}}
+{{- $args = concat $args (slice . 2) -}}
+{{- include $tpl $args -}}
+{{- end -}}