[AIR-195] Extend config with isogen options

Change-Id: Ibde769336b955d450105c928e2be707327273879

cmd/bootstrap/bootstrap_isogen.go

@@ -9,16 +9,13 @@ import (
 
 // NewISOGenCommand creates a new command for ISO image creation
 func NewISOGenCommand(parent *cobra.Command, rootSettings *environment.AirshipCTLSettings) *cobra.Command {
-	settings := &isogen.Settings{AirshipCTLSettings: rootSettings}
 	imageGen := &cobra.Command{
 		Use:   "isogen",
 		Short: "Generate bootstrap ISO image",
 		RunE: func(cmd *cobra.Command, args []string) error {
-			return isogen.GenerateBootstrapIso(settings, args)
+			return isogen.GenerateBootstrapIso(rootSettings, args)
 		},
 	}
 
-	settings.InitFlags(imageGen)
-
 	return imageGen
 }

cmd/bootstrap/testdata/TestBootstrapGoldenOutput/bootstrap-isogen-cmd-with-help.golden

@@ -4,5 +4,4 @@ Usage:
   bootstrap isogen [flags]
 
 Flags:
-  -c, --config string   Configuration file path for ISO builder container.
-  -h, --help            help for isogen
+  -h, --help   help for isogen

pkg/bootstrap/isogen/command.go

@@ -8,8 +8,10 @@ import (
 	"strings"
 
 	"opendev.org/airship/airshipctl/pkg/bootstrap/cloudinit"
+	"opendev.org/airship/airshipctl/pkg/config"
 	"opendev.org/airship/airshipctl/pkg/container"
 	"opendev.org/airship/airshipctl/pkg/document"
+	"opendev.org/airship/airshipctl/pkg/environment"
 	"opendev.org/airship/airshipctl/pkg/errors"
 	"opendev.org/airship/airshipctl/pkg/log"
 	"opendev.org/airship/airshipctl/pkg/util"
@@ -22,24 +24,37 @@ const (
 )
 
 // GenerateBootstrapIso will generate data for cloud init and start ISO builder container
-func GenerateBootstrapIso(settings *Settings, args []string) error {
-	if settings.IsogenConfigFile == "" {
-		log.Print("Reading config file location from global settings is not supported")
-		return errors.ErrNotImplemented{}
-	}
-
+func GenerateBootstrapIso(settings *environment.AirshipCTLSettings, args []string) error {
 	ctx := context.Background()
-	cfg := &Config{}
 
-	if err := util.ReadYAMLFile(settings.IsogenConfigFile, &cfg); err != nil {
+	globalConf := settings.Config()
+	if err := globalConf.EnsureComplete(); err != nil {
 		return err
 	}
 
-	if err := verifyInputs(cfg, args); err != nil {
+	cfg, err := globalConf.CurrentContextBootstrapInfo()
+	if err != nil {
 		return err
 	}
 
-	docBundle, err := document.NewBundle(fs.MakeRealFS(), args[0], "")
+	var manifest *config.Manifest
+	manifest, err = globalConf.CurrentContextManifest()
+	if err != nil {
+		return err
+	}
+
+	// TODO (dukov) This check should be implemented as part of the config  module
+	if manifest == nil {
+		return errors.ErrMissingConfig{What: "manifest for currnet context not found"}
+	}
+
+	if err = verifyInputs(cfg); err != nil {
+		return err
+	}
+
+	// TODO (dukov) replace with the appropriate function once it's available
+	// in doncument module
+	docBundle, err := document.NewBundle(fs.MakeRealFS(), manifest.TargetPath, "")
 	if err != nil {
 		return err
 	}
@@ -60,12 +75,7 @@ func GenerateBootstrapIso(settings *Settings, args []string) error {
 	return verifyArtifacts(cfg)
 }
 
-func verifyInputs(cfg *Config, args []string) error {
-	if len(args) == 0 {
-		log.Print("Specify path to document model. Config param from global settings is not supported")
-		return errors.ErrNotImplemented{}
-	}
-
+func verifyInputs(cfg *config.Bootstrap) error {
 	if cfg.Container.Volume == "" {
 		log.Print("Specify volume bind for ISO builder container")
 		return errors.ErrWrongConfig{}
@@ -87,21 +97,19 @@ func verifyInputs(cfg *Config, args []string) error {
 	return nil
 }
 
-func getContainerCfg(cfg *Config, userData []byte, netConf []byte) (map[string][]byte, error) {
+func getContainerCfg(cfg *config.Bootstrap, userData []byte, netConf []byte) map[string][]byte {
 	hostVol := strings.Split(cfg.Container.Volume, ":")[0]
 
 	fls := make(map[string][]byte)
 	fls[filepath.Join(hostVol, cfg.Builder.UserDataFileName)] = userData
 	fls[filepath.Join(hostVol, cfg.Builder.NetworkConfigFileName)] = netConf
-	builderData, err := cfg.ToYAML()
-	if err != nil {
-		return nil, err
-	}
+	// TODO (dukov) Get rid of this ugly conversion byte -> string -> byte
+	builderData := []byte(cfg.String())
 	fls[filepath.Join(hostVol, builderConfigFileName)] = builderData
-	return fls, nil
+	return fls
 }
 
-func verifyArtifacts(cfg *Config) error {
+func verifyArtifacts(cfg *config.Bootstrap) error {
 	hostVol := strings.Split(cfg.Container.Volume, ":")[0]
 	metadataPath := filepath.Join(hostVol, cfg.Builder.OutputMetadataFileName)
 	_, err := os.Stat(metadataPath)
@@ -111,22 +119,17 @@ func verifyArtifacts(cfg *Config) error {
 func generateBootstrapIso(
 	docBubdle document.Bundle,
 	builder container.Container,
-	cfg *Config,
+	cfg *config.Bootstrap,
 	debug bool,
 ) error {
 	cntVol := strings.Split(cfg.Container.Volume, ":")[1]
 	log.Print("Creating cloud-init for ephemeral K8s")
-	userData, netConf, err := cloudinit.GetCloudData(docBubdle, EphemeralClusterAnnotation)
-	if err != nil {
-		return err
-	}
-
-	var fls map[string][]byte
-	fls, err = getContainerCfg(cfg, userData, netConf)
+	userData, netConf, err := cloudinit.GetCloudData(docBubdle, document.EphemeralClusterMarker)
 	if err != nil {
 		return err
 	}
 
+	fls := getContainerCfg(cfg, userData, netConf)
 	if err = util.WriteFiles(fls, 0600); err != nil {
 		return err
 	}

pkg/bootstrap/isogen/command_test.go

@@ -10,6 +10,7 @@ import (
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
+	"opendev.org/airship/airshipctl/pkg/config"
 	"opendev.org/airship/airshipctl/pkg/document"
 	"opendev.org/airship/airshipctl/pkg/errors"
 	"opendev.org/airship/airshipctl/pkg/log"
@@ -51,12 +52,12 @@ func TestBootstrapIso(t *testing.T) {
 
 	volBind := "/tmp:/dst"
 	testErr := fmt.Errorf("TestErr")
-	testCfg := &Config{
-		Container: Container{
+	testCfg := &config.Bootstrap{
+		Container: &config.Container{
 			Volume:           volBind,
 			ContainerRuntime: "docker",
 		},
-		Builder: Builder{
+		Builder: &config.Builder{
 			UserDataFileName:      "user-data",
 			NetworkConfigFileName: "net-conf",
 		},
@@ -71,7 +72,7 @@ func TestBootstrapIso(t *testing.T) {
 
 	tests := []struct {
 		builder     *mockContainer
-		cfg         *Config
+		cfg         *config.Bootstrap
 		debug       bool
 		expectedOut []string
 		expectdErr  error
@@ -124,59 +125,53 @@ func TestBootstrapIso(t *testing.T) {
 
 func TestVerifyInputs(t *testing.T) {
 	tests := []struct {
-		cfg         *Config
+		cfg         *config.Bootstrap
 		args        []string
 		expectedErr error
 	}{
 		{
-			cfg:         &Config{},
-			args:        []string{},
-			expectedErr: errors.ErrNotImplemented{},
-		},
-		{
-			cfg:         &Config{},
-			args:        []string{"."},
+			cfg: &config.Bootstrap{
+				Container: &config.Container{},
+			},
 			expectedErr: errors.ErrWrongConfig{},
 		},
 		{
-			cfg: &Config{
-				Container: Container{
+			cfg: &config.Bootstrap{
+				Container: &config.Container{
 					Volume: "/tmp:/dst",
 				},
+				Builder: &config.Builder{},
 			},
-			args:        []string{"."},
 			expectedErr: errors.ErrWrongConfig{},
 		},
 		{
-			cfg: &Config{
-				Container: Container{
+			cfg: &config.Bootstrap{
+				Container: &config.Container{
 					Volume: "/tmp",
 				},
-				Builder: Builder{
+				Builder: &config.Builder{
 					UserDataFileName:      "user-data",
 					NetworkConfigFileName: "net-conf",
 				},
 			},
-			args:        []string{"."},
 			expectedErr: nil,
 		},
 		{
-			cfg: &Config{
-				Container: Container{
+			cfg: &config.Bootstrap{
+				Container: &config.Container{
 					Volume: "/tmp:/dst:/dst1",
 				},
-				Builder: Builder{
+				Builder: &config.Builder{
 					UserDataFileName:      "user-data",
 					NetworkConfigFileName: "net-conf",
 				},
 			},
-			args:        []string{"."},
 			expectedErr: errors.ErrWrongConfig{},
 		},
 	}
 
 	for _, tt := range tests {
-		actualErr := verifyInputs(tt.cfg, tt.args)
+		actualErr := verifyInputs(tt.cfg)
 		assert.Equal(t, tt.expectedErr, actualErr)
 	}
 }

pkg/bootstrap/isogen/config.go

@@ -1,61 +0,0 @@
-package isogen
-
-import (
-	"github.com/spf13/cobra"
-
-	"sigs.k8s.io/yaml"
-
-	"opendev.org/airship/airshipctl/pkg/environment"
-)
-
-const (
-	// TODO this should be part of a airshipctl config
-	EphemeralClusterAnnotation = "airshipit.org/clustertype=ephemeral"
-)
-
-// Settings settings for isogen command
-type Settings struct {
-	*environment.AirshipCTLSettings
-
-	// Configuration file (YAML-formatted) path for ISO builder container.
-	IsogenConfigFile string
-}
-
-// InitFlags adds falgs and their default settings for isogen command
-func (i *Settings) InitFlags(cmd *cobra.Command) {
-	flags := cmd.Flags()
-	flags.StringVarP(&i.IsogenConfigFile, "config", "c", "", "Configuration file path for ISO builder container.")
-}
-
-// Config ISO builder container configuration
-type Config struct {
-	// Configuration parameters for container
-	Container Container `json:"container,omitempty"`
-	// Configuration parameters for ISO builder
-	Builder Builder `json:"builder,omitempty"`
-}
-
-// Container parameters
-type Container struct {
-	// Container volume directory binding.
-	Volume string `json:"volume,omitempty"`
-	// ISO generator container image URL
-	Image string `json:"image,omitempty"`
-	// Container Runtime Interface driver
-	ContainerRuntime string `json:"containerRuntime,omitempty"`
-}
-
-// Builder parameters
-type Builder struct {
-	// Cloud Init user-data file name placed to the container volume root
-	UserDataFileName string `json:"userDataFileName,omitempty"`
-	// Cloud Init network-config file name placed to the container volume root
-	NetworkConfigFileName string `json:"networkConfigFileName,omitempty"`
-	// File name for output metadata
-	OutputMetadataFileName string `json:"outputMetadataFileName,omitempty"`
-}
-
-// ToYAML serializes confid to YAML
-func (c *Config) ToYAML() ([]byte, error) {
-	return yaml.Marshal(c)
-}

pkg/bootstrap/isogen/config_test.go

@@ -1,24 +0,0 @@
-package isogen
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-)
-
-func TestToYaml(t *testing.T) {
-	expectedBytes := []byte(`builder: {}
-container:
-  containerRuntime: docker
-`)
-	cnf := &Config{
-		Container: Container{
-			ContainerRuntime: "docker",
-		},
-	}
-
-	actualBytes, err := cnf.ToYAML()
-	require.NoError(t, err)
-	assert.Equal(t, actualBytes, expectedBytes)
-}

pkg/config/config.go

@@ -400,6 +400,7 @@ func (c *Config) GetCluster(cName, cType string) (*Cluster, error) {
 	}
 	return cluster, nil
 }
+
 func (c *Config) AddCluster(theCluster *ClusterOptions) (*Cluster, error) {
 	// Need to create new cluster placeholder
 	// Get list of ClusterPurposes that match the theCluster.name
@@ -589,6 +590,20 @@ func (c *Config) CurrentContextManifest() (*Manifest, error) {
 	return c.Manifests[currentContext.Manifest], nil
 }
 
+// CurrentContextBootstrapInfo returns bootstrap info for current context
+func (c *Config) CurrentContextBootstrapInfo() (*Bootstrap, error) {
+	currentCluster, err := c.CurrentContextCluster()
+	if err != nil {
+		return nil, err
+	}
+
+	bootstrap, exists := c.ModulesConfig.BootstrapInfo[currentCluster.Bootstrap]
+	if !exists {
+		return nil, ErrBootstrapInfoNotFound{Name: currentCluster.Bootstrap}
+	}
+	return bootstrap, nil
+}
+
 // Purge removes the config file
 func (c *Config) Purge() error {
 	return os.Remove(c.loadedConfigPath)
@@ -602,10 +617,10 @@ func (c *Config) Equal(d *Config) bool {
 	authInfoEq := reflect.DeepEqual(c.AuthInfos, d.AuthInfos)
 	contextEq := reflect.DeepEqual(c.Contexts, d.Contexts)
 	manifestEq := reflect.DeepEqual(c.Manifests, d.Manifests)
+	modulesEq := reflect.DeepEqual(c.ModulesConfig, d.ModulesConfig)
 	return c.Kind == d.Kind &&
 		c.APIVersion == d.APIVersion &&
-		clusterEq && authInfoEq && contextEq && manifestEq &&
-		c.ModulesConfig.Equal(d.ModulesConfig)
+		clusterEq && authInfoEq && contextEq && manifestEq && modulesEq
 }
 
 // Cluster functions
@@ -753,7 +768,7 @@ func (m *Modules) Equal(n *Modules) bool {
 	if n == nil {
 		return n == m
 	}
-	return m.Dummy == n.Dummy
+	return reflect.DeepEqual(m.BootstrapInfo, n.BootstrapInfo)
 }
 func (m *Modules) String() string {
 	yaml, err := yaml.Marshal(&m)
@@ -763,6 +778,60 @@ func (m *Modules) String() string {
 	return string(yaml)
 }
 
+// Bootstrap functions
+func (b *Bootstrap) Equal(c *Bootstrap) bool {
+	if c == nil {
+		return b == c
+	}
+	contEq := reflect.DeepEqual(b.Container, c.Container)
+	bldrEq := reflect.DeepEqual(b.Builder, c.Builder)
+	return contEq && bldrEq
+}
+
+func (b *Bootstrap) String() string {
+	yaml, err := yaml.Marshal(&b)
+	if err != nil {
+		return ""
+	}
+	return string(yaml)
+}
+
+// Container functions
+func (c *Container) Equal(d *Container) bool {
+	if d == nil {
+		return d == c
+	}
+	return c.Volume == d.Volume &&
+		c.Image == d.Image &&
+		c.ContainerRuntime == d.ContainerRuntime
+}
+
+func (c *Container) String() string {
+	yaml, err := yaml.Marshal(&c)
+	if err != nil {
+		return ""
+	}
+	return string(yaml)
+}
+
+// Builder functions
+func (b *Builder) Equal(c *Builder) bool {
+	if c == nil {
+		return b == c
+	}
+	return b.UserDataFileName == c.UserDataFileName &&
+		b.NetworkConfigFileName == c.NetworkConfigFileName &&
+		b.OutputMetadataFileName == c.OutputMetadataFileName
+}
+
+func (b *Builder) String() string {
+	yaml, err := yaml.Marshal(&b)
+	if err != nil {
+		return ""
+	}
+	return string(yaml)
+}
+
 // ClusterComplexName functions
 func (c *ClusterComplexName) validName() bool {
 	err := ValidClusterType(c.clusterType)

pkg/config/config_test.go

@@ -67,6 +67,30 @@ func TestString(t *testing.T) {
 			name:     "repository",
 			stringer: DummyRepository(),
 		},
+		{
+			name:     "bootstrap",
+			stringer: DummyBootstrap(),
+		},
+		{
+			name:     "bootstrap",
+			stringer: DummyBootstrap(),
+		},
+		{
+			name: "builder",
+			stringer: &Builder{
+				UserDataFileName:       "user-data",
+				NetworkConfigFileName:  "netconfig",
+				OutputMetadataFileName: "output-metadata.yaml",
+			},
+		},
+		{
+			name: "container",
+			stringer: &Container{
+				Volume:           "/dummy:dummy",
+				Image:            "dummy_image:dummy_tag",
+				ContainerRuntime: "docker",
+			},
+		},
 	}
 
 	for _, tt := range tests {
@@ -139,14 +163,48 @@ func TestEqual(t *testing.T) {
 		assert.False(t, testRepository1.Equal(nil))
 	})
 
-	// TODO(howell): this needs to be fleshed out when the Modules type is finished
 	t.Run("modules-equal", func(t *testing.T) {
-		testModules1 := &Modules{Dummy: "same"}
-		testModules2 := &Modules{Dummy: "different"}
+		testModules1 := NewModules()
+		testModules2 := NewModules()
+		testModules2.BootstrapInfo["different"] = &Bootstrap{
+			Container: &Container{Volume: "different"},
+		}
 		assert.True(t, testModules1.Equal(testModules1))
 		assert.False(t, testModules1.Equal(testModules2))
 		assert.False(t, testModules1.Equal(nil))
 	})
+
+	t.Run("bootstrap-equal", func(t *testing.T) {
+		testBootstrap1 := &Bootstrap{
+			Container: &Container{
+				Image: "same",
+			},
+		}
+		testBootstrap2 := &Bootstrap{
+			Container: &Container{
+				Image: "different",
+			},
+		}
+		assert.True(t, testBootstrap1.Equal(testBootstrap1))
+		assert.False(t, testBootstrap1.Equal(testBootstrap2))
+		assert.False(t, testBootstrap1.Equal(nil))
+	})
+
+	t.Run("container-equal", func(t *testing.T) {
+		testContainer1 := &Container{Image: "same"}
+		testContainer2 := &Container{Image: "different"}
+		assert.True(t, testContainer1.Equal(testContainer1))
+		assert.False(t, testContainer1.Equal(testContainer2))
+		assert.False(t, testContainer1.Equal(nil))
+	})
+
+	t.Run("builder-equal", func(t *testing.T) {
+		testBuilder1 := &Builder{UserDataFileName: "same"}
+		testBuilder2 := &Builder{UserDataFileName: "different"}
+		assert.True(t, testBuilder1.Equal(testBuilder1))
+		assert.False(t, testBuilder1.Equal(testBuilder2))
+		assert.False(t, testBuilder1.Equal(nil))
+	})
 }
 
 func TestLoadConfig(t *testing.T) {

pkg/config/errors.go

@@ -0,0 +1,15 @@
+package config
+
+import (
+	"fmt"
+)
+
+// ErrBootstrapInfoNotFound returned if bootstrap
+// information is not found for cluster
+type ErrBootstrapInfoNotFound struct {
+	Name string
+}
+
+func (e ErrBootstrapInfoNotFound) Error() string {
+	return fmt.Sprintf("Bootstrap info %s not found", e.Name)
+}

pkg/config/test_utils.go

@@ -79,7 +79,7 @@ func DummyCluster() *Cluster {
 	cluster.CertificateAuthority = "dummy_ca"
 	c.SetKubeCluster(cluster)
 	c.NameInKubeconf = "dummycluster_target"
-	c.Bootstrap = "dummy_bootstrap"
+	c.Bootstrap = "dummy_bootstrap_config"
 	return c
 }
 
@@ -108,7 +108,9 @@ func DummyAuthInfo() *AuthInfo {
 }
 
 func DummyModules() *Modules {
-	return &Modules{Dummy: "dummy-module"}
+	m := NewModules()
+	m.BootstrapInfo["dummy_bootstrap_config"] = DummyBootstrap()
+	return m
 }
 
 // DummyClusterPurpose , utility function used for tests
@@ -166,6 +168,25 @@ func DummyContextOptions() *ContextOptions {
 	return co
 }
 
+func DummyBootstrap() *Bootstrap {
+	bs := &Bootstrap{}
+	cont := Container{
+		Volume:           "/dummy:dummy",
+		Image:            "dummy_image:dummy_tag",
+		ContainerRuntime: "docker",
+	}
+	builder := Builder{
+		UserDataFileName:       "user-data",
+		NetworkConfigFileName:  "netconfig",
+		OutputMetadataFileName: "output-metadata.yaml",
+	}
+
+	bs.Container = &cont
+	bs.Builder = &builder
+
+	return bs
+}
+
 const (
 	testConfigYAML = `apiVersion: airshipit.org/v1alpha1
 clusters:

pkg/config/testdata/bootstrap-string.yaml

@@ -0,0 +1,8 @@
+builder:
+  networkConfigFileName: netconfig
+  outputMetadataFileName: output-metadata.yaml
+  userDataFileName: user-data
+container:
+  containerRuntime: docker
+  image: dummy_image:dummy_tag
+  volume: /dummy:dummy

pkg/config/testdata/builder-string.yaml

@@ -0,0 +1,3 @@
+networkConfigFileName: netconfig
+outputMetadataFileName: output-metadata.yaml
+userDataFileName: user-data

pkg/config/testdata/cluster-string.yaml

@@ -1,4 +1,4 @@
-bootstrap-info: dummy_bootstrap
+bootstrap-info: dummy_bootstrap_config
 cluster-kubeconf: dummycluster_target
 
 LocationOfOrigin: ""

pkg/config/testdata/config-string.yaml

@@ -3,10 +3,10 @@ clusters:
   dummy_cluster:
     cluster-type:
       ephemeral:
-        bootstrap-info: dummy_bootstrap
+        bootstrap-info: dummy_bootstrap_config
         cluster-kubeconf: dummycluster_ephemeral
       target:
-        bootstrap-info: dummy_bootstrap
+        bootstrap-info: dummy_bootstrap_config
         cluster-kubeconf: dummycluster_target
 contexts:
   dummy_context:
@@ -32,6 +32,15 @@ manifests:
         username: dummy_user
     target-path: /var/tmp/
 modules-config:
-  dummy-for-tests: dummy-module
+  bootstrapInfo:
+    dummy_bootstrap_config:
+      builder:
+        networkConfigFileName: netconfig
+        outputMetadataFileName: output-metadata.yaml
+        userDataFileName: user-data
+      container:
+        containerRuntime: docker
+        image: dummy_image:dummy_tag
+        volume: /dummy:dummy
 users:
   dummy_user: {}

pkg/config/testdata/container-string.yaml

@@ -0,0 +1,3 @@
+containerRuntime: docker
+image: dummy_image:dummy_tag
+volume: /dummy:dummy

pkg/config/testdata/modules-string.yaml

@@ -1 +1,10 @@
-dummy-for-tests: dummy-module
+bootstrapInfo:
+  dummy_bootstrap_config:
+    builder:
+      networkConfigFileName: netconfig
+      outputMetadataFileName: output-metadata.yaml
+      userDataFileName: user-data
+    container:
+      containerRuntime: docker
+      image: dummy_image:dummy_tag
+      volume: /dummy:dummy

pkg/config/testdata/prettycluster-string.yaml

@@ -1,6 +1,6 @@
 Cluster: dummycluster
 target:
-bootstrap-info: dummy_bootstrap
+bootstrap-info: dummy_bootstrap_config
 cluster-kubeconf: dummycluster_target
 
 LocationOfOrigin: ""

pkg/config/types.go

@@ -94,7 +94,7 @@ type Cluster struct {
 // Configuration that the Document Module would need
 // Configuration that the Workflows Module would need
 type Modules struct {
-	Dummy string `json:"dummy-for-tests"`
+	BootstrapInfo map[string]*Bootstrap `json:"bootstrapInfo"`
 }
 
 // Context is a tuple of references to a cluster (how do I communicate with a kubernetes context),
@@ -148,3 +148,31 @@ type ClusterComplexName struct {
 	clusterName string
 	clusterType string
 }
+
+// Bootstrap holds configurations for bootstrap steps
+type Bootstrap struct {
+	// Configuration parameters for container
+	Container *Container `json:"container,omitempty"`
+	// Configuration parameters for ISO builder
+	Builder *Builder `json:"builder,omitempty"`
+}
+
+// Container parameters
+type Container struct {
+	// Container volume directory binding.
+	Volume string `json:"volume,omitempty"`
+	// ISO generator container image URL
+	Image string `json:"image,omitempty"`
+	// Container Runtime Interface driver
+	ContainerRuntime string `json:"containerRuntime,omitempty"`
+}
+
+// Builder parameters
+type Builder struct {
+	// Cloud Init user-data file name placed to the container volume root
+	UserDataFileName string `json:"userDataFileName,omitempty"`
+	// Cloud Init network-config file name placed to the container volume root
+	NetworkConfigFileName string `json:"networkConfigFileName,omitempty"`
+	// File name for output metadata
+	OutputMetadataFileName string `json:"outputMetadataFileName,omitempty"`
+}

pkg/config/utils.go

@@ -56,7 +56,9 @@ func NewAuthInfo() *AuthInfo {
 }
 
 func NewModules() *Modules {
-	return &Modules{}
+	return &Modules{
+		BootstrapInfo: make(map[string]*Bootstrap),
+	}
 }
 
 // NewClusterPurpose is a convenience function that returns a new ClusterPurpose

pkg/document/constants.go

@@ -0,0 +1,9 @@
+package document
+
+// Document lables and annotations
+const (
+	ClusterType = "clustertype"
+	// TODO (dukov) Replace with constants defined in config module once
+	// module dependency loop has been resolved
+	EphemeralClusterMarker = "airshipit.org/clustertype=ephemeral"
+)