Ignored YAML tag - go

Question

I have config.yml file:
vcenter:
connection: https
hostname: vcenter.mydomain.lan
username: readonlyauto#vsphere.local
password: mypasspord
port: 443
EsxiExcludeDatastores:
- datastore1
- datastore2
EsxiExcludeDatastores2:
datastores:
- datastore1
- datastore2
I'm trying to parse it with "gopkg.in/yaml.v2"
I created struct:
type FileConfig struct {
Vcenter struct {
ConnectionType string `yaml:"connection"`
Hostname string `yaml:"hostname"`
Username string `yaml:"username"`
Password string `yaml:"password"`
Port int `yaml:"port"`
} `yaml:"vcenter"`
EsxiExcludeDatastores struct {
Datastores []string `yaml:"EsxiExcludeDatastores"`
}
EsxiExcludeDatastores2 struct {
Datastores []string `yaml:"datastores"`
} `yaml:"EsxiExcludeDatastores2"`
}
var AppConfig FileConfig
After parsing, I print results:
fmt.Println("Num of EsxiExcludeDatastores.Datastores = ", len(AppConfig.EsxiExcludeDatastores.Datastores))
fmt.Println("Num of EsxiExcludeDatastores2.Datastores = ", len(AppConfig.EsxiExcludeDatastores2.Datastores))
Num of EsxiExcludeDatastores.Datastores = 0
Num of EsxiExcludeDatastores2.Datastores = 2
Can you help me, where I did mistake in EsxiExcludeDatastores struct? As you see, everything is fine with EsxiExcludeDatastores2, but EsxiExcludeDatastores is empty.
I tried to do this in different ways, but with no result ...

Answer 1

You're almost there.
To "promote" yaml struct tag(s) to the "parent" field, add:
EsxiExcludeDatastores struct {
Datastores []string `yaml:"EsxiExcludeDatastores"`
} `yaml:",inline"` // <- this
https://play.golang.org/p/S7QxGaspTyN
From the yaml.v2 docs, a struct tag that uses the inline flag does the following:
Inline the field, which must be a struct or a map, causing all of its
fields or keys to be processed as if they were part of the outer
struct. For maps, keys must not conflict with the yaml keys of other
struct fields.