config.go

/*
Copyright 2019 The Skaffold Authors

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package v2beta2

import (
	v1 "k8s.io/api/core/v1"

	"github.com/GoogleContainerTools/skaffold/v2/pkg/skaffold/schema/util"
)

// !!! WARNING !!! This config version is already released, please DO NOT MODIFY the structs in this file.
const Version string = "skaffold/v2beta2"

// NewSkaffoldConfig creates a SkaffoldConfig
func NewSkaffoldConfig() util.VersionedConfig {
	return new(SkaffoldConfig)
}

// SkaffoldConfig holds the fields parsed from the Skaffold configuration file (skaffold.yaml).
type SkaffoldConfig struct {
	// APIVersion is the version of the configuration.
	APIVersion string `yaml:"apiVersion" yamltags:"required"`

	// Kind is always `Config`. Defaults to `Config`.
	Kind string `yaml:"kind" yamltags:"required"`

	// Metadata holds additional information about the config.
	Metadata Metadata `yaml:"metadata,omitempty"`

	// Pipeline defines the Build/Test/Deploy phases.
	Pipeline `yaml:",inline"`

	// Profiles *beta* can override be used to `build`, `test` or `deploy` configuration.
	Profiles []Profile `yaml:"profiles,omitempty"`
}

// Metadata holds an optional name of the project.
type Metadata struct {
	// Name is an identifier for the project.
	Name string `yaml:"name,omitempty"`
}

// Pipeline describes a Skaffold pipeline.
type Pipeline struct {
	// Build describes how images are built.
	Build BuildConfig `yaml:"build,omitempty"`

	// Test describes how images are tested.
	Test []*TestCase `yaml:"test,omitempty"`

	// Deploy describes how images are deployed.
	Deploy DeployConfig `yaml:"deploy,omitempty"`

	// PortForward describes user defined resources to port-forward.
	PortForward []*PortForwardResource `yaml:"portForward,omitempty"`
}

func (c *SkaffoldConfig) GetVersion() string {
	return c.APIVersion
}

// ResourceType describes the Kubernetes resource types used for port forwarding.
type ResourceType string

// PortForwardResource describes a resource to port forward.
type PortForwardResource struct {
	// Type is the Kubernetes type that should be port forwarded.
	// Acceptable resource types include: `Service`, `Pod` and Controller resource type that has a pod spec: `ReplicaSet`, `ReplicationController`, `Deployment`, `StatefulSet`, `DaemonSet`, `Job`, `CronJob`.
	Type ResourceType `yaml:"resourceType,omitempty"`

	// Name is the name of the Kubernetes resource to port forward.
	Name string `yaml:"resourceName,omitempty"`

	// Namespace is the namespace of the resource to port forward.
	Namespace string `yaml:"namespace,omitempty"`

	// Port is the resource port that will be forwarded.
	Port int `yaml:"port,omitempty"`

	// Address is the local address to bind to. Defaults to the loopback address 127.0.0.1.
	Address string `yaml:"address,omitempty"`

	// LocalPort is the local port to forward to. If the port is unavailable, Skaffold will choose a random open port to forward to. *Optional*.
	LocalPort int `yaml:"localPort,omitempty"`
}

// BuildConfig contains all the configuration for the build steps.
type BuildConfig struct {
	// Artifacts lists the images you're going to be building.
	Artifacts []*Artifact `yaml:"artifacts,omitempty"`

	// InsecureRegistries is a list of registries declared by the user to be insecure.
	// These registries will be connected to via HTTP instead of HTTPS.
	InsecureRegistries []string `yaml:"insecureRegistries,omitempty"`

	// TagPolicy *beta* determines how images are tagged.
	// A few strategies are provided here, although you most likely won't need to care!
	// If not specified, it defaults to `gitCommit: {variant: Tags}`.
	TagPolicy TagPolicy `yaml:"tagPolicy,omitempty"`

	BuildType `yaml:",inline"`
}

// TagPolicy contains all the configuration for the tagging step.
type TagPolicy struct {
	// GitTagger *beta* tags images with the git tag or commit of the artifact's workspace.
	GitTagger *GitTagger `yaml:"gitCommit,omitempty" yamltags:"oneOf=tag"`

	// ShaTagger *beta* tags images with their sha256 digest.
	ShaTagger *ShaTagger `yaml:"sha256,omitempty" yamltags:"oneOf=tag"`

	// EnvTemplateTagger *beta* tags images with a configurable template string.
	EnvTemplateTagger *EnvTemplateTagger `yaml:"envTemplate,omitempty" yamltags:"oneOf=tag"`

	// DateTimeTagger *beta* tags images with the build timestamp.
	DateTimeTagger *DateTimeTagger `yaml:"dateTime,omitempty" yamltags:"oneOf=tag"`
}

// ShaTagger *beta* tags images with their sha256 digest.
type ShaTagger struct{}

// GitTagger *beta* tags images with the git tag or commit of the artifact's workspace.
type GitTagger struct {
	// Variant determines the behavior of the git tagger. Valid variants are
	// `Tags` (default): use git tags or fall back to abbreviated commit hash.
	// `CommitSha`: use the full git commit sha.
	// `AbbrevCommitSha`: use the abbreviated git commit sha.
	// `TreeSha`: use the full tree hash of the artifact workingdir.
	// `AbbrevTreeSha`: use the abbreviated tree hash of the artifact workingdir.
	Variant string `yaml:"variant,omitempty"`
}

// EnvTemplateTagger *beta* tags images with a configurable template string.
type EnvTemplateTagger struct {
	// Template used to produce the image name and tag.
	// See golang [text/template](https://golang.org/pkg/text/template/).
	// The template is executed against the current environment,
	// with those variables injected:
	//   IMAGE_NAME   |  Name of the image being built, as supplied in the artifacts section.
	// For example: `{{.RELEASE}}-{{.IMAGE_NAME}}`.
	Template string `yaml:"template,omitempty" yamltags:"required"`
}

// DateTimeTagger *beta* tags images with the build timestamp.
type DateTimeTagger struct {
	// Format formats the date and time.
	// See [#Time.Format](https://golang.org/pkg/time/#Time.Format).
	// Defaults to `2006-01-02_15-04-05.999_MST`.
	Format string `yaml:"format,omitempty"`

	// TimeZone sets the timezone for the date and time.
	// See [Time.LoadLocation](https://golang.org/pkg/time/#Time.LoadLocation).
	// Defaults to the local timezone.
	TimeZone string `yaml:"timezone,omitempty"`
}

// BuildType contains the specific implementation and parameters needed
// for the build step. Only one field should be populated.
type BuildType struct {
	// LocalBuild *beta* describes how to do a build on the local docker daemon
	// and optionally push to a repository.
	LocalBuild *LocalBuild `yaml:"local,omitempty" yamltags:"oneOf=build"`

	// GoogleCloudBuild *beta* describes how to do a remote build on
	// [Google Cloud Build](https://cloud.google.com/cloud-build/).
	GoogleCloudBuild *GoogleCloudBuild `yaml:"googleCloudBuild,omitempty" yamltags:"oneOf=build"`

	// Cluster *beta* describes how to do an on-cluster build.
	Cluster *ClusterDetails `yaml:"cluster,omitempty" yamltags:"oneOf=build"`
}

// LocalBuild *beta* describes how to do a build on the local docker daemon
// and optionally push to a repository.
type LocalBuild struct {
	// Push should images be pushed to a registry.
	// If not specified, images are pushed only if the current Kubernetes context
	// connects to a remote cluster.
	Push *bool `yaml:"push,omitempty"`

	// UseDockerCLI use `docker` command-line interface instead of Docker Engine APIs.
	UseDockerCLI bool `yaml:"useDockerCLI,omitempty"`

	// UseBuildkit use BuildKit to build Docker images. If unspecified, uses the Docker default.
	UseBuildkit *bool `yaml:"useBuildkit,omitempty"`

	// Concurrency is how many artifacts can be built concurrently. 0 means "no-limit".
	// Defaults to `1`.
	Concurrency *int `yaml:"concurrency,omitempty"`
}

// GoogleCloudBuild *beta* describes how to do a remote build on
// [Google Cloud Build](https://cloud.google.com/cloud-build/docs/).
// Docker and Jib artifacts can be built on Cloud Build. The `projectId` needs
// to be provided and the currently logged in user should be given permissions to trigger
// new builds.
type GoogleCloudBuild struct {
	// ProjectID is the ID of your Cloud Platform Project.
	// If it is not provided, Skaffold will guess it from the image name.
	// For example, given the artifact image name `gcr.io/myproject/image`, Skaffold
	// will use the `myproject` GCP project.
	ProjectID string `yaml:"projectId,omitempty"`

	// DiskSizeGb is the disk size of the VM that runs the build.
	// See [Cloud Build Reference](https://cloud.google.com/cloud-build/docs/api/reference/rest/v1/projects.builds#buildoptions).
	DiskSizeGb int64 `yaml:"diskSizeGb,omitempty"`

	// MachineType is the type of the VM that runs the build.
	// See [Cloud Build Reference](https://cloud.google.com/cloud-build/docs/api/reference/rest/v1/projects.builds#buildoptions).
	MachineType string `yaml:"machineType,omitempty"`

	// Timeout is the amount of time (in seconds) that this build should be allowed to run.
	// See [Cloud Build Reference](https://cloud.google.com/cloud-build/docs/api/reference/rest/v1/projects.builds#resource-build).
	Timeout string `yaml:"timeout,omitempty"`

	// DockerImage is the image that runs a Docker build.
	// See [Cloud Builders](https://cloud.google.com/cloud-build/docs/cloud-builders).
	// Defaults to `gcr.io/cloud-builders/docker`.
	DockerImage string `yaml:"dockerImage,omitempty"`

	// KanikoImage is the image that runs a Kaniko build.
	// See [Cloud Builders](https://cloud.google.com/cloud-build/docs/cloud-builders).
	// Defaults to `gcr.io/kaniko-project/executor`.
	KanikoImage string `yaml:"kanikoImage,omitempty"`

	// MavenImage is the image that runs a Maven build.
	// See [Cloud Builders](https://cloud.google.com/cloud-build/docs/cloud-builders).
	// Defaults to `gcr.io/cloud-builders/mvn`.
	MavenImage string `yaml:"mavenImage,omitempty"`

	// GradleImage is the image that runs a Gradle build.
	// See [Cloud Builders](https://cloud.google.com/cloud-build/docs/cloud-builders).
	// Defaults to `gcr.io/cloud-builders/gradle`.
	GradleImage string `yaml:"gradleImage,omitempty"`

	// PackImage is the image that runs a Cloud Native Buildpacks build.
	// See [Cloud Builders](https://cloud.google.com/cloud-build/docs/cloud-builders).
	// Defaults to `gcr.io/k8s-skaffold/pack`.
	PackImage string `yaml:"packImage,omitempty"`

	// Concurrency is how many artifacts can be built concurrently. 0 means "no-limit".
	// Defaults to `0`.
	Concurrency int `yaml:"concurrency,omitempty"`
}

// KanikoCache configures Kaniko caching. If a cache is specified, Kaniko will
// use a remote cache which will speed up builds.
type KanikoCache struct {
	// Repo is a remote repository to store cached layers. If none is specified, one will be
	// inferred from the image name. See [Kaniko Caching](https://github.com/GoogleContainerTools/kaniko#caching).
	Repo string `yaml:"repo,omitempty"`
	// HostPath specifies a path on the host that is mounted to each pod as read only cache volume containing base images.
	// If set, must exist on each node and prepopulated with kaniko-warmer.
	HostPath string `yaml:"hostPath,omitempty"`
}

// ClusterDetails *beta* describes how to do an on-cluster build.
type ClusterDetails struct {
	// HTTPProxy for kaniko pod.
	HTTPProxy string `yaml:"HTTP_PROXY,omitempty"`

	// HTTPSProxy for kaniko pod.
	HTTPSProxy string `yaml:"HTTPS_PROXY,omitempty"`

	// PullSecret is the path to the Google Cloud service account secret key file.
	PullSecret string `yaml:"pullSecret,omitempty"`

	// PullSecretName is the name of the Kubernetes secret for pulling base images
	// and pushing the final image. If given, the secret needs to contain the Google Cloud
	// service account secret key under the key `kaniko-secret`.
	// Defaults to `kaniko-secret`.
	PullSecretName string `yaml:"pullSecretName,omitempty"`

	// PullSecretMountPath is the path the pull secret will be mounted at within the running container.
	PullSecretMountPath string `yaml:"pullSecretMountPath,omitempty"`

	// Namespace is the Kubernetes namespace.
	// Defaults to current namespace in Kubernetes configuration.
	Namespace string `yaml:"namespace,omitempty"`

	// Timeout is the amount of time (in seconds) that this build is allowed to run.
	// Defaults to 20 minutes (`20m`).
	Timeout string `yaml:"timeout,omitempty"`

	// DockerConfig describes how to mount the local Docker configuration into a pod.
	DockerConfig *DockerConfig `yaml:"dockerConfig,omitempty"`

	// Resources define the resource requirements for the kaniko pod.
	Resources *ResourceRequirements `yaml:"resources,omitempty"`

	// Concurrency is how many artifacts can be built concurrently. 0 means "no-limit".
	// Defaults to `0`.
	Concurrency int `yaml:"concurrency,omitempty"`

	// Volumes defines container mounts for ConfigMap and Secret resources.
	Volumes []v1.Volume `yaml:"volumes,omitempty"`

	// RandomPullSecret adds a random UUID postfix to the default name of the pull secret to facilitate parallel builds, e.g. kaniko-secretdocker-cfgfd154022-c761-416f-8eb3-cf8258450b85.
	RandomPullSecret bool `yaml:"randomPullSecret,omitempty"`

	// RandomDockerConfigSecret adds a random UUID postfix to the default name of the docker secret to facilitate parallel builds, e.g. docker-cfgfd154022-c761-416f-8eb3-cf8258450b85.
	RandomDockerConfigSecret bool `yaml:"randomDockerConfigSecret,omitempty"`
}

// DockerConfig contains information about the docker `config.json` to mount.
type DockerConfig struct {
	// Path is the path to the docker `config.json`.
	Path string `yaml:"path,omitempty"`

	// SecretName is the Kubernetes secret that contains the `config.json` Docker configuration.
	// Note that the expected secret type is not 'kubernetes.io/dockerconfigjson' but 'Opaque'.
	SecretName string `yaml:"secretName,omitempty"`
}

// ResourceRequirements describes the resource requirements for the kaniko pod.
type ResourceRequirements struct {
	// Requests [resource requests](https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/#resource-requests-and-limits-of-pod-and-container) for the Kaniko pod.
	Requests *ResourceRequirement `yaml:"requests,omitempty"`

	// Limits [resource limits](https://kubernetes.io/docs/concepts/configuration/manage-compute-resources-container/#resource-requests-and-limits-of-pod-and-container) for the Kaniko pod.
	Limits *ResourceRequirement `yaml:"limits,omitempty"`
}

// ResourceRequirement stores the CPU/Memory requirements for the pod.
type ResourceRequirement struct {
	// CPU the number cores to be used.
	// For example: `2`, `2.0` or `200m`.
	CPU string `yaml:"cpu,omitempty"`

	// Memory the amount of memory to allocate to the pod.
	// For example: `1Gi` or `1000Mi`.
	Memory string `yaml:"memory,omitempty"`

	// EphemeralStorage the amount of Ephemeral storage to allocate to the pod.
	// For example: `1Gi` or `1000Mi`.
	EphemeralStorage string `yaml:"ephemeralStorage,omitempty"`

	// ResourceStorage the amount of resource storage to allocate to the pod.
	// For example: `1Gi` or `1000Mi`.
	ResourceStorage string `yaml:"resourceStorage,omitempty"`
}

// TestCase is a list of structure tests to run on images that Skaffold builds.
type TestCase struct {
	// ImageName is the artifact on which to run those tests.
	// For example: `gcr.io/k8s-skaffold/example`.
	ImageName string `yaml:"image" yamltags:"required"`

	// StructureTests lists the [Container Structure Tests](https://github.com/GoogleContainerTools/container-structure-test)
	// to run on that artifact.
	// For example: `["./test/*"]`.
	StructureTests []string `yaml:"structureTests,omitempty"`
}

// DeployConfig contains all the configuration needed by the deploy steps.
type DeployConfig struct {
	DeployType `yaml:",inline"`

	// StatusCheckDeadlineSeconds *beta* is the deadline for deployments to stabilize in seconds.
	StatusCheckDeadlineSeconds int `yaml:"statusCheckDeadlineSeconds,omitempty"`

	// KubeContext is the Kubernetes context that Skaffold should deploy to.
	// For example: `minikube`.
	KubeContext string `yaml:"kubeContext,omitempty"`
}

// DeployType contains the specific implementation and parameters needed
// for the deploy step. All three deployer types can be used at the same
// time for hybrid workflows.
type DeployType struct {
	// HelmDeploy *beta* uses the `helm` CLI to apply the charts to the cluster.
	HelmDeploy *HelmDeploy `yaml:"helm,omitempty"`

	// KubectlDeploy *beta* uses a client side `kubectl apply` to deploy manifests.
	// You'll need a `kubectl` CLI version installed that's compatible with your cluster.
	KubectlDeploy *KubectlDeploy `yaml:"kubectl,omitempty"`

	// KustomizeDeploy *beta* uses the `kustomize` CLI to "patch" a deployment for a target environment.
	KustomizeDeploy *KustomizeDeploy `yaml:"kustomize,omitempty"`
}

// KubectlDeploy *beta* uses a client side `kubectl apply` to deploy manifests.
// You'll need a `kubectl` CLI version installed that's compatible with your cluster.
type KubectlDeploy struct {
	// Manifests lists the Kubernetes yaml or json manifests.
	// Defaults to `["k8s/*.yaml"]`.
	Manifests []string `yaml:"manifests,omitempty"`

	// RemoteManifests lists Kubernetes manifests in remote clusters.
	RemoteManifests []string `yaml:"remoteManifests,omitempty"`

	// Flags are additional flags passed to `kubectl`.
	Flags KubectlFlags `yaml:"flags,omitempty"`
}

// KubectlFlags are additional flags passed on the command
// line to kubectl either on every command (Global), on creations (Apply)
// or deletions (Delete).
type KubectlFlags struct {
	// Global are additional flags passed on every command.
	Global []string `yaml:"global,omitempty"`

	// Apply are additional flags passed on creations (`kubectl apply`).
	Apply []string `yaml:"apply,omitempty"`

	// Delete are additional flags passed on deletions (`kubectl delete`).
	Delete []string `yaml:"delete,omitempty"`

	// DisableValidation passes the `--validate=false` flag to supported
	// `kubectl` commands when enabled.
	DisableValidation bool `yaml:"disableValidation,omitempty"`
}

// HelmDeploy *beta* uses the `helm` CLI to apply the charts to the cluster.
type HelmDeploy struct {
	// Releases is a list of Helm releases.
	Releases []HelmRelease `yaml:"releases,omitempty" yamltags:"required"`

	// Flags are additional option flags that are passed on the command
	// line to `helm`.
	Flags HelmDeployFlags `yaml:"flags,omitempty"`
}

// HelmDeployFlags are additional option flags that are passed on the command
// line to `helm`.
type HelmDeployFlags struct {
	// Global are additional flags passed on every command.
	Global []string `yaml:"global,omitempty"`

	// Install are additional flags passed to (`helm install`).
	Install []string `yaml:"install,omitempty"`

	// Upgrade are additional flags passed to (`helm upgrade`).
	Upgrade []string `yaml:"upgrade,omitempty"`
}

// KustomizeDeploy *beta* uses the `kustomize` CLI to "patch" a deployment for a target environment.
type KustomizeDeploy struct {
	// KustomizePaths is the path to Kustomization files.
	// Defaults to `["."]`.
	KustomizePaths []string `yaml:"paths,omitempty"`

	// Flags are additional flags passed to `kubectl`.
	Flags KubectlFlags `yaml:"flags,omitempty"`

	// BuildArgs are additional args passed to `kustomize build`.
	BuildArgs []string `yaml:"buildArgs,omitempty"`
}

// HelmRelease describes a helm release to be deployed.
type HelmRelease struct {
	// Name is the name of the Helm release.
	Name string `yaml:"name,omitempty" yamltags:"required"`

	// ChartPath is the path to the Helm chart.
	ChartPath string `yaml:"chartPath,omitempty" yamltags:"required"`

	// ValuesFiles are the paths to the Helm `values` files.
	ValuesFiles []string `yaml:"valuesFiles,omitempty"`

	// Values are key-value pairs supplementing the Helm `values` file.
	Values map[string]string `yaml:"values,omitempty,omitempty"`

	// Namespace is the Kubernetes namespace.
	Namespace string `yaml:"namespace,omitempty"`

	// Version is the version of the chart.
	Version string `yaml:"version,omitempty"`

	// SetValues are key-value pairs.
	// If present, Skaffold will send `--set` flag to Helm CLI and append all pairs after the flag.
	SetValues map[string]string `yaml:"setValues,omitempty"`

	// SetValueTemplates are key-value pairs.
	// If present, Skaffold will try to parse the value part of each key-value pair using
	// environment variables in the system, then send `--set` flag to Helm CLI and append
	// all parsed pairs after the flag.
	SetValueTemplates map[string]string `yaml:"setValueTemplates,omitempty"`

	// SetFiles are key-value pairs.
	// If present, Skaffold will send `--set-file` flag to Helm CLI and append all pairs after the flag.
	SetFiles map[string]string `yaml:"setFiles,omitempty"`

	// Wait if `true`, Skaffold will send `--wait` flag to Helm CLI.
	// Defaults to `false`.
	Wait bool `yaml:"wait,omitempty"`

	// RecreatePods if `true`, Skaffold will send `--recreate-pods` flag to Helm CLI
	// when upgrading a new version of a chart in subsequent dev loop deploy.
	// Defaults to `false`.
	RecreatePods bool `yaml:"recreatePods,omitempty"`

	// SkipBuildDependencies should build dependencies be skipped.
	SkipBuildDependencies bool `yaml:"skipBuildDependencies,omitempty"`

	// UseHelmSecrets instructs skaffold to use secrets plugin on deployment.
	UseHelmSecrets bool `yaml:"useHelmSecrets,omitempty"`

	// Remote specifies whether the chart path is remote, or exists on the host filesystem.
	// `remote: true` implies `skipBuildDependencies: true`.
	Remote bool `yaml:"remote,omitempty"`

	// Overrides are key-value pairs.
	// If present, Skaffold will build a Helm `values` file that overrides
	// the original and use it to call Helm CLI (`--f` flag).
	Overrides util.HelmOverrides `yaml:"overrides,omitempty"`

	// Packaged parameters for packaging helm chart (`helm package`).
	Packaged *HelmPackaged `yaml:"packaged,omitempty"`

	// ImageStrategy adds image configurations to the Helm `values` file.
	ImageStrategy HelmImageStrategy `yaml:"imageStrategy,omitempty"`
}

// HelmPackaged parameters for packaging helm chart (`helm package`).
type HelmPackaged struct {
	// Version sets the `version` on the chart to this semver version.
	Version string `yaml:"version,omitempty"`

	// AppVersion sets the `appVersion` on the chart to this version.
	AppVersion string `yaml:"appVersion,omitempty"`
}

// HelmImageStrategy adds image configurations to the Helm `values` file.
type HelmImageStrategy struct {
	HelmImageConfig `yaml:",inline"`
}

// HelmImageConfig describes an image configuration.
type HelmImageConfig struct {
	// HelmFQNConfig is the image configuration uses the syntax `IMAGE-NAME=IMAGE-REPOSITORY:IMAGE-TAG`.
	HelmFQNConfig *HelmFQNConfig `yaml:"fqn,omitempty" yamltags:"oneOf=helmImageStrategy"`

	// HelmConventionConfig is the image configuration uses the syntax `IMAGE-NAME.repository=IMAGE-REPOSITORY, IMAGE-NAME.tag=IMAGE-TAG`.
	HelmConventionConfig *HelmConventionConfig `yaml:"helm,omitempty" yamltags:"oneOf=helmImageStrategy"`
}

// HelmFQNConfig is the image config to use the FullyQualifiedImageName as param to set.
type HelmFQNConfig struct {
	// Property defines the image config.
	Property string `yaml:"property,omitempty"`
}

// HelmConventionConfig is the image config in the syntax of image.repository and image.tag.
type HelmConventionConfig struct {
	// ExplicitRegistry separates `image.registry` to the image config syntax. Useful for some charts e.g. `postgresql`.
	ExplicitRegistry bool `yaml:"explicitRegistry,omitempty"`
}

// Artifact are the items that need to be built, along with the context in which
// they should be built.
type Artifact struct {
	// ImageName is the name of the image to be built.
	// For example: `gcr.io/k8s-skaffold/example`.
	ImageName string `yaml:"image,omitempty" yamltags:"required"`

	// Workspace is the directory containing the artifact's sources.
	// Defaults to `.`.
	Workspace string `yaml:"context,omitempty"`

	// Sync *beta* lists local files synced to pods instead
	// of triggering an image build when modified.
	// If no files are listed, sync all the files and infer the destination.
	// Defaults to `infer: ["**/*"]`.
	Sync *Sync `yaml:"sync,omitempty"`

	// ArtifactType describes how to build an artifact.
	ArtifactType `yaml:",inline"`
}

// Sync *beta* specifies what files to sync into the container.
// This is a list of sync rules indicating the intent to sync for source files.
// If no files are listed, sync all the files and infer the destination.
// Defaults to `infer: ["**/*"]`.
type Sync struct {
	// Manual lists manual sync rules indicating the source and destination.
	Manual []*SyncRule `yaml:"manual,omitempty" yamltags:"oneOf=sync"`

	// Infer lists file patterns which may be synced into the container.
	// The container destination is inferred by the builder.
	// Currently only available for docker artifacts.
	Infer []string `yaml:"infer,omitempty" yamltags:"oneOf=sync"`

	// Auto delegates discovery of sync rules to the build system.
	// Currently only available for jib.
	Auto *Auto `yaml:"auto,omitempty" yamltags:"oneOf=sync"`
}

// SyncRule specifies which local files to sync to remote folders.
type SyncRule struct {
	// Src is a glob pattern to match local paths against.
	// Directories should be delimited by `/` on all platforms.
	// For example: `"css/**/*.css"`.
	Src string `yaml:"src,omitempty" yamltags:"required"`

	// Dest is the destination path in the container where the files should be synced to.
	// For example: `"app/"`
	Dest string `yaml:"dest,omitempty" yamltags:"required"`

	// Strip specifies the path prefix to remove from the source path when
	// transplanting the files into the destination folder.
	// For example: `"css/"`
	Strip string `yaml:"strip,omitempty"`
}

// Auto cannot be customized.
type Auto struct{}

// Profile is used to override any `build`, `test` or `deploy` configuration.
type Profile struct {
	// Name is a unique profile name.
	// For example: `profile-prod`.
	Name string `yaml:"name,omitempty" yamltags:"required"`

	// Pipeline contains the definitions to replace the default skaffold pipeline.
	Pipeline `yaml:",inline"`

	// Patches lists patches applied to the configuration.
	// Patches use the JSON patch notation.
	Patches []JSONPatch `yaml:"patches,omitempty"`

	// Activation criteria by which a profile can be auto-activated.
	// The profile is auto-activated if any one of the activations are triggered.
	// An activation is triggered if all of the criteria (env, kubeContext, command) are triggered.
	Activation []Activation `yaml:"activation,omitempty"`
}

// JSONPatch patch to be applied by a profile.
type JSONPatch struct {
	// Op is the operation carried by the patch: `add`, `remove`, `replace`, `move`, `copy` or `test`.
	// Defaults to `replace`.
	Op string `yaml:"op,omitempty"`

	// Path is the position in the yaml where the operation takes place.
	// For example, this targets the `dockerfile` of the first artifact built.
	// For example: `/build/artifacts/0/docker/dockerfile`.
	Path string `yaml:"path,omitempty" yamltags:"required"`

	// From is the source position in the yaml, used for `copy` or `move` operations.
	From string `yaml:"from,omitempty"`

	// Value is the value to apply. Can be any portion of yaml.
	Value *util.YamlpatchNode `yaml:"value,omitempty"`
}

// Activation criteria by which a profile is auto-activated.
type Activation struct {
	// Env is a `key=pattern` pair. The profile is auto-activated if an Environment
	// Variable `key` matches the pattern. If the pattern starts with `!`, activation
	// happens if the remaining pattern is _not_ matched. The pattern matches if the
	// Environment Variable value is exactly `pattern`, or the regex `pattern` is
	// found in it. An empty `pattern` (e.g. `env: "key="`) always only matches if
	// the Environment Variable is undefined or empty.
	// For example: `ENV=production`
	Env string `yaml:"env,omitempty"`

	// KubeContext is a Kubernetes context for which the profile is auto-activated.
	// For example: `minikube`.
	KubeContext string `yaml:"kubeContext,omitempty"`

	// Command is a Skaffold command for which the profile is auto-activated.
	// For example: `dev`.
	Command string `yaml:"command,omitempty"`
}

// ArtifactType describes how to build an artifact.
type ArtifactType struct {
	// DockerArtifact *beta* describes an artifact built from a Dockerfile.
	DockerArtifact *DockerArtifact `yaml:"docker,omitempty" yamltags:"oneOf=artifact"`

	// BazelArtifact *beta* requires bazel CLI to be installed and the sources to
	// contain [Bazel](https://bazel.build/) configuration files.
	BazelArtifact *BazelArtifact `yaml:"bazel,omitempty" yamltags:"oneOf=artifact"`

	// JibArtifact builds images using the
	// [Jib plugins for Maven or Gradle](https://github.com/GoogleContainerTools/jib/).
	JibArtifact *JibArtifact `yaml:"jib,omitempty" yamltags:"oneOf=artifact"`

	// KanikoArtifact builds images using [kaniko](https://github.com/GoogleContainerTools/kaniko).
	KanikoArtifact *KanikoArtifact `yaml:"kaniko,omitempty" yamltags:"oneOf=artifact"`

	// BuildpackArtifact builds images using [Cloud Native Buildpacks](https://buildpacks.io/).
	BuildpackArtifact *BuildpackArtifact `yaml:"buildpack,omitempty" yamltags:"oneOf=artifact"`

	// CustomArtifact *beta* builds images using a custom build script written by the user.
	CustomArtifact *CustomArtifact `yaml:"custom,omitempty" yamltags:"oneOf=artifact"`
}

// BuildpackArtifact *alpha* describes an artifact built using [Cloud Native Buildpacks](https://buildpacks.io/).
// It can be used to build images out of project's sources without any additional configuration.
type BuildpackArtifact struct {
	// Builder is the builder image used.
	Builder string `yaml:"builder" yamltags:"required"`

	// RunImage overrides the stack's default run image.
	RunImage string `yaml:"runImage,omitempty"`

	// Env are environment variables, in the `key=value` form,  passed to the build.
	// Values can use the go template syntax.
	// For example: `["key1=value1", "key2=value2", "key3={{.ENV_VARIABLE}}"]`.
	Env []string `yaml:"env,omitempty"`

	// Buildpacks is a list of strings, where each string is a specific buildpack to use with the builder.
	// If you specify buildpacks the builder image automatic detection will be ignored. These buildpacks will be used to build the Image from your source code.
	// Order matters.
	Buildpacks []string `yaml:"buildpacks,omitempty"`

	// Dependencies are the file dependencies that skaffold should watch for both rebuilding and file syncing for this artifact.
	Dependencies *BuildpackDependencies `yaml:"dependencies,omitempty"`
}

// BuildpackDependencies *alpha* is used to specify dependencies for an artifact built by a buildpack.
type BuildpackDependencies struct {
	// Paths should be set to the file dependencies for this artifact, so that the skaffold file watcher knows when to rebuild and perform file synchronization.
	Paths []string `yaml:"paths,omitempty" yamltags:"oneOf=dependency"`

	// Ignore specifies the paths that should be ignored by skaffold's file watcher. If a file exists in both `paths` and in `ignore`, it will be ignored, and will be excluded from both rebuilds and file synchronization.
	// Will only work in conjunction with `paths`.
	Ignore []string `yaml:"ignore,omitempty"`
}

// CustomArtifact *beta* describes an artifact built from a custom build script
// written by the user. It can be used to build images with builders that aren't directly integrated with skaffold.
type CustomArtifact struct {
	// BuildCommand is the command executed to build the image.
	BuildCommand string `yaml:"buildCommand,omitempty"`
	// Dependencies are the file dependencies that skaffold should watch for both rebuilding and file syncing for this artifact.
	Dependencies *CustomDependencies `yaml:"dependencies,omitempty"`
}

// CustomDependencies *beta* is used to specify dependencies for an artifact built by a custom build script.
// Either `dockerfile` or `paths` should be specified for file watching to work as expected.
type CustomDependencies struct {
	// Dockerfile should be set if the artifact is built from a Dockerfile, from which skaffold can determine dependencies.
	Dockerfile *DockerfileDependency `yaml:"dockerfile,omitempty" yamltags:"oneOf=dependency"`
	// Command represents a custom command that skaffold executes to obtain dependencies. The output of this command *must* be a valid JSON array.
	Command string `yaml:"command,omitempty" yamltags:"oneOf=dependency"`
	// Paths should be set to the file dependencies for this artifact, so that the skaffold file watcher knows when to rebuild and perform file synchronization.
	Paths []string `yaml:"paths,omitempty" yamltags:"oneOf=dependency"`
	// Ignore specifies the paths that should be ignored by skaffold's file watcher. If a file exists in both `paths` and in `ignore`, it will be ignored, and will be excluded from both rebuilds and file synchronization.
	// Will only work in conjunction with `paths`.
	Ignore []string `yaml:"ignore,omitempty"`
}

// DockerfileDependency *beta* is used to specify a custom build artifact that is built from a Dockerfile. This allows skaffold to determine dependencies from the Dockerfile.
type DockerfileDependency struct {
	// Path locates the Dockerfile relative to workspace.
	Path string `yaml:"path,omitempty"`

	// BuildArgs are arguments passed to the docker build.
	// It also accepts environment variables via the go template syntax.
	// For example: `{"key1": "value1", "key2": "value2", "key3": "'{{.ENV_VARIABLE}}'"}`.
	BuildArgs map[string]*string `yaml:"buildArgs,omitempty"`
}

// KanikoArtifact describes an artifact built from a Dockerfile,
// with kaniko.
type KanikoArtifact struct {
	// AdditionalFlags are additional flags to be passed to Kaniko command line.
	// See [Kaniko Additional Flags](https://github.com/GoogleContainerTools/kaniko#additional-flags).
	// Deprecated - instead the named, unique fields should be used, e.g. `buildArgs`, `cache`, `target`.
	AdditionalFlags []string `yaml:"flags,omitempty"`

	// DockerfilePath locates the Dockerfile relative to workspace.
	// Defaults to `Dockerfile`.
	DockerfilePath string `yaml:"dockerfile,omitempty"`

	// Target is the Dockerfile target name to build.
	Target string `yaml:"target,omitempty"`

	// BuildArgs are arguments passed to the docker build.
	// It also accepts environment variables via the go template syntax.
	// For example: `{"key1": "value1", "key2": "value2", "key3": "'{{.ENV_VARIABLE}}'"}`.
	BuildArgs map[string]*string `yaml:"buildArgs,omitempty"`

	// Env are environment variables passed to the kaniko pod.
	Env []v1.EnvVar `yaml:"env,omitempty"`

	// InitImage is the image used to run init container which mounts kaniko context.
	InitImage string `yaml:"initImage,omitempty"`

	// Image is the Docker image used by the Kaniko pod.
	// Defaults to the latest released version of `gcr.io/kaniko-project/executor`.
	Image string `yaml:"image,omitempty"`

	// Cache configures Kaniko caching. If a cache is specified, Kaniko will
	// use a remote cache which will speed up builds.
	Cache *KanikoCache `yaml:"cache,omitempty"`

	// Reproducible is used to strip timestamps out of the built image.
	Reproducible bool `yaml:"reproducible,omitempty"`

	// SkipTLS skips TLS verification when pulling and pushing the image.
	SkipTLS bool `yaml:"skipTLS,omitempty"`

	// VolumeMounts are volume mounts passed to kaniko pod.
	VolumeMounts []v1.VolumeMount `yaml:"volumeMounts,omitempty"`
}

// DockerArtifact describes an artifact built from a Dockerfile,
// usually using `docker build`.
type DockerArtifact struct {
	// DockerfilePath locates the Dockerfile relative to workspace.
	// Defaults to `Dockerfile`.
	DockerfilePath string `yaml:"dockerfile,omitempty"`

	// Target is the Dockerfile target name to build.
	Target string `yaml:"target,omitempty"`

	// BuildArgs are arguments passed to the docker build.
	// For example: `{"key1": "value1", "key2": "value2"}`.
	BuildArgs map[string]*string `yaml:"buildArgs,omitempty"`

	// NetworkMode is passed through to docker and overrides the
	// network configuration of docker builder. If unset, use whatever
	// is configured in the underlying docker daemon. Valid modes are
	// `host`: use the host's networking stack.
	// `bridge`: use the bridged network configuration.
	// `none`: no networking in the container.
	NetworkMode string `yaml:"network,omitempty"`

	// CacheFrom lists the Docker images used as cache sources.
	// For example: `["golang:1.10.1-alpine3.7", "alpine:3.7"]`.
	CacheFrom []string `yaml:"cacheFrom,omitempty"`

	// NoCache used to pass in --no-cache to docker build to prevent caching.
	NoCache bool `yaml:"noCache,omitempty"`
}

// BazelArtifact describes an artifact built with [Bazel](https://bazel.build/).
type BazelArtifact struct {
	// BuildTarget is the `bazel build` target to run.
	// For example: `//:skaffold_example.tar`.
	BuildTarget string `yaml:"target,omitempty" yamltags:"required"`

	// BuildArgs are additional args to pass to `bazel build`.
	// For example: `["-flag", "--otherflag"]`.
	BuildArgs []string `yaml:"args,omitempty"`
}

// JibArtifact builds images using the
// [Jib plugins for Maven and Gradle](https://github.com/GoogleContainerTools/jib/).
type JibArtifact struct {
	// Project selects which sub-project to build for multi-module builds.
	Project string `yaml:"project,omitempty"`

	// Flags are additional build flags passed to the builder.
	// For example: `["--no-build-cache"]`.
	Flags []string `yaml:"args,omitempty"`

	// Type the Jib builder type; normally determined automatically. Valid types are
	// `maven`: for Maven.
	// `gradle`: for Gradle.
	Type string `yaml:"type,omitempty"`
}