feat(provider): Init

Adds Init function to allow the provider doing initial setup related things

cmd/tk/main.go

@@ -100,6 +100,9 @@ func main() {
 	if err != nil {
 		log.Fatalln("Setting up provider:", err)
 	}
+	if err := prov.Init(); err != nil {
+		log.Fatalln("initializing provider:", err)
+	}
 
 	rootCmd.AddCommand(providerCmd())
 

pkg/provider/kubernetes/kubernetes.go

@@ -16,6 +16,10 @@ type Kubernetes struct {
 
 var client = Kubectl{}
 
+// Init makes the provider ready to be used
+func (k *Kubernetes) Init() error {
+}
+
 // Reconcile receives the raw evaluated jsonnet as a marshaled json dict and
 // shall return it reconciled as a state object of the target system
 func (k *Kubernetes) Reconcile(raw map[string]interface{}) (state interface{}, err error) {

pkg/provider/provider.go

@@ -4,6 +4,10 @@ import "github.com/spf13/cobra"
 
 // Provider describes methods for functionality more advanced than evaluating jsonnet
 type Provider interface {
+	// Init may be used to do some setup related tasks.
+	// Called before any other requests to the provider are made
+	Init() error
+
 	// Reconcile receives the raw evaluated jsonnet as a marshaled json dict and
 	// shall return it reconciled as a state object of the target system
 	// `state` must be one of {`map[string]interface`, `[]map[string]interface`}