change type structs encoding tag to json

Signed-off-by: Josh Wolf <josh@wolfs.io>

pkg/build/types/build_option.go

@@ -17,30 +17,30 @@ package types
 // ListOption describes an optional deviation to a list, for example, a
 // list of packages.
 type ListOption struct {
-	Add    []string `yaml:"add,omitempty"`
-	Remove []string `yaml:"remove,omitempty"`
+	Add    []string `json:"add,omitempty"`
+	Remove []string `json:"remove,omitempty"`
 }
 
 // ContentsOption describes an optional deviation to an apko environment's
 // contents block.
 type ContentsOption struct {
-	Packages ListOption `yaml:"packages,omitempty"`
+	Packages ListOption `json:"packages,omitempty"`
 }
 
 // AccountsOption describes an optional deviation to an apko environment's
 // run-as setting.
 type AccountsOption struct {
-	RunAs string `yaml:"run-as,omitempty"`
+	RunAs string `json:"run-as,omitempty"`
 }
 
 // BuildOption describes an optional deviation to an apko environment.
 type BuildOption struct {
-	Contents ContentsOption `yaml:"contents,omitempty"`
-	Accounts AccountsOption `yaml:"accounts,omitempty"`
+	Contents ContentsOption `json:"contents,omitempty"`
+	Accounts AccountsOption `json:"accounts,omitempty"`
 
-	Environment map[string]string `yaml:"environment,omitempty"`
+	Environment map[string]string `json:"environment,omitempty"`
 
-	Entrypoint ImageEntrypoint `yaml:"entrypoint,omitempty"`
+	Entrypoint ImageEntrypoint `json:"entrypoint,omitempty"`
 }
 
 // Apply applies a patch described by a BuildOption to an apko environment.

pkg/build/types/types.go

@@ -24,7 +24,7 @@ import (
 
 type User struct {
 	// Required: The name of the user
-	UserName string `json:"user_name"`
+	UserName string `json:"username"`
 	// Required: The user ID
 	UID uint32 `json:"uid"`
 	// Required: The user's group ID
@@ -33,7 +33,7 @@ type User struct {
 
 type Group struct {
 	// Required: The name of the group
-	GroupName string `json:"group_name"`
+	GroupName string `json:"groupname"`
 	// Required: The group ID
 	GID uint32 `json:"gid"`
 	// Required: The list of members of the group
@@ -87,7 +87,7 @@ type ImageEntrypoint struct {
 	// Optional: The type of entrypoint. Only "service-bundle" is supported.
 	Type string `json:"type,omitempty"`
 	// Required: The command of the entrypoint
-	Command string `json:"command,omitempty"`
+	Command string `json:"command"`
 	// Optional: The shell fragment of the entrypoint command
 	ShellFragment string `json:"shell-fragment,omitempty"`