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config: detect provisioner-only resource in JSON and error [GH-4385]

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This commit is contained in:
Mitchell Hashimoto 2016-01-19 12:19:32 -08:00
parent 7ab19c62e6
commit 8e7b0d90e3
1 changed files with 9 additions and 0 deletions
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9
config/loader_hcl.go
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@ -405,6 +405,15 @@ func loadResourcesHcl(list *ast.ObjectList) ([]*Resource, error) {
// Now go over all the types and their children in order to get
// all of the actual resources.
for _, item := range list.Items {
// GH-4385: We detect a pure provisioner resource and give the user
// an error about how to do it cleanly.
if len(item.Keys) == 4 && item.Keys[2].Token.Value().(string) == "provisioner" {
return nil, fmt.Errorf(
"position %s: provisioners in a resource should be wrapped in a list\n\n"+
"Example: \"provisioner\": [ { \"local-exec\": ... } ]",
item.Pos())
}
if len(item.Keys) != 2 {
return nil, fmt.Errorf(
"position %s: resource must be followed by exactly two strings, a type and a name",