Add option to use prive ip for oci builder

builder/oracle/oci/config.go

@@ -32,6 +32,7 @@ type Config struct {
 	Fingerprint  string `mapstructure:"fingerprint"`
 	KeyFile      string `mapstructure:"key_file"`
 	PassPhrase   string `mapstructure:"pass_phrase"`
+	UsePrivateIP bool   `mapstructure:"use_private_ip"`
 
 	AvailabilityDomain string `mapstructure:"availability_domain"`
 	CompartmentID      string `mapstructure:"compartment_ocid"`

builder/oracle/oci/config_test.go

@@ -25,6 +25,7 @@ func testConfig(accessConfFile *os.File) map[string]interface{} {
 
 		// Comm
 		"ssh_username":   "opc",
+		"use_private_ip": false,
 	}
 }
 

builder/oracle/oci/driver_mock.go

@@ -24,6 +24,8 @@ type driverMock struct {
 	WaitForImageCreationErr error
 
 	WaitForInstanceStateErr error
+
+	cfg *Config
 }
 
 // CreateInstance creates a new compute instance.
@@ -57,11 +59,14 @@ func (d *driverMock) DeleteImage(id string) error {
 	return nil
 }
 
-// GetInstanceIP returns the public IP corresponding to the given instance id.
+// GetInstanceIP returns the public or private IP corresponding to the given instance id.
 func (d *driverMock) GetInstanceIP(id string) (string, error) {
 	if d.GetInstanceIPErr != nil {
 		return "", d.GetInstanceIPErr
 	}
+	if d.cfg.UsePrivateIP {
+		return "private_ip", nil
+	}
 	return "ip", nil
 }
 

builder/oracle/oci/driver_oci.go

@@ -63,7 +63,7 @@ func (d *driverOCI) DeleteImage(id string) error {
 	return d.client.Compute.Images.Delete(&client.DeleteImageParams{ID: id})
 }
 
-// GetInstanceIP returns the public IP corresponding to the given instance id.
+// GetInstanceIP returns the public or private IP corresponding to the given instance id.
 func (d *driverOCI) GetInstanceIP(id string) (string, error) {
 	// get nvic and cross ref to find pub ip address
 	vnics, err := d.client.Compute.VNICAttachments.List(
@@ -85,6 +85,9 @@ func (d *driverOCI) GetInstanceIP(id string) (string, error) {
 		return "", fmt.Errorf("Error getting VNIC details: %s", err)
 	}
 
+	if d.cfg.UsePrivateIP {
+		return vnic.PrivateIP, nil
+	}
 	return vnic.PublicIP, nil
 }
 

builder/oracle/oci/step_instance_info_test.go

@@ -1,11 +1,13 @@
 package oci
 
 import (
+	"bytes"
 	"context"
 	"errors"
 	"testing"
 
 	"github.com/hashicorp/packer/helper/multistep"
+	"github.com/hashicorp/packer/packer"
 )
 
 func TestInstanceInfo(t *testing.T) {
@@ -29,6 +31,36 @@ func TestInstanceInfo(t *testing.T) {
 	}
 }
 
+func TestInstanceInfoPrivateIP(t *testing.T) {
+	baseTestConfig := baseTestConfig()
+	baseTestConfig.UsePrivateIP = true
+	state := new(multistep.BasicStateBag)
+	state.Put("config", baseTestConfig)
+	state.Put("driver", &driverMock{cfg: baseTestConfig})
+	state.Put("hook", &packer.MockHook{})
+	state.Put("ui", &packer.BasicUi{
+		Reader: new(bytes.Buffer),
+		Writer: new(bytes.Buffer),
+	})
+	state.Put("instance_id", "ocid1...")
+
+	step := new(stepInstanceInfo)
+	defer step.Cleanup(state)
+
+	if action := step.Run(context.Background(), state); action != multistep.ActionContinue {
+		t.Fatalf("bad action: %#v", action)
+	}
+
+	instanceIPRaw, ok := state.GetOk("instance_ip")
+	if !ok {
+		t.Fatalf("should have instance_ip")
+	}
+
+	if instanceIPRaw.(string) != "private_ip" {
+		t.Fatalf("should've got ip ('%s' != 'private_ip')", instanceIPRaw.(string))
+	}
+}
+
 func TestInstanceInfo_GetInstanceIPErr(t *testing.T) {
 	state := testState()
 	state.Put("instance_id", "ocid1...")

builder/oracle/oci/step_test.go

@@ -37,6 +37,7 @@ func baseTestConfig() *Config {
 
 		// Comm
 		"ssh_username":   "opc",
+		"use_private_ip": false,
 	})
 
 	// Once we have a config object they key file isn't re-read so we can
@@ -50,9 +51,10 @@ func baseTestConfig() *Config {
 }
 
 func testState() multistep.StateBag {
+	baseTestConfig := baseTestConfig()
 	state := new(multistep.BasicStateBag)
-	state.Put("config", baseTestConfig())
-	state.Put("driver", &driverMock{})
+	state.Put("config", baseTestConfig)
+	state.Put("driver", &driverMock{cfg: baseTestConfig})
 	state.Put("hook", &packer.MockHook{})
 	state.Put("ui", &packer.BasicUi{
 		Reader: new(bytes.Buffer),