model

package
v0.15.2 Latest Latest
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 Go to latest Published: Mar 5, 2022 License: Apache-2.0 Imports: 22 Imported by: 0

Documentation

Overview

Package model contains the app definition and interfaces for dealing with K8s objects.

Index

Constants

View Source 
const (
	DefaultComponentsDir = "components"       // the default components directory
	DefaultParamsFile    = "params.libsonnet" // the default params files
)

Default values

View Source 
const Baseline = "_"

Baseline is a special environment name that represents the baseline environment with no customizations.

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const LatestAPIVersion = "qbec.io/v1alpha1"

LatestAPIVersion is the latest version of the API we support.

View Source 
const QBECDirectivesNamespace = "directives.qbec.io/"

QBECDirectivesNamespace is the leading path for all directives set by the user for qbec use.

View Source 
const QBECMetadataPrefix = "qbec.io/"

QBECMetadataPrefix is the leading path for all metadata set by qbec.

Variables

View Source 
var QbecNames = struct {
	ApplicationLabel    string // the label to use for tagging an object with an application name
	TagLabel            string // the label to use for tagging an object with a scoped GC tag
	ComponentAnnotation string // the label to use for tagging an object with a component
	ComponentLabel      string // the label to use for tagging an object with a component
	EnvironmentLabel    string // the label to use for tagging an object with an annotation
	PristineAnnotation  string // the annotation to use for storing the pristine object
	EnvVarName          string // the name of the external variable that has the environment name
	EnvPropsVarName     string // the name of the external variable that has the environment properties object
	TagVarName          string // the name of the external variable that has the tag name
	DefaultNsVarName    string // the name of the external variable that has the default namespace
	CleanModeVarName    string // name of external variable that has the indicator for clean mode
	Directives          Directives
}{
	ApplicationLabel:    QBECMetadataPrefix + "application",
	TagLabel:            QBECMetadataPrefix + "tag",
	ComponentAnnotation: QBECMetadataPrefix + "component",
	ComponentLabel:      QBECMetadataPrefix + "component",
	EnvironmentLabel:    QBECMetadataPrefix + "environment",
	PristineAnnotation:  QBECMetadataPrefix + "last-applied",
	EnvVarName:          QBECMetadataPrefix + "env",
	EnvPropsVarName:     QBECMetadataPrefix + "envProperties",
	TagVarName:          QBECMetadataPrefix + "tag",
	DefaultNsVarName:    QBECMetadataPrefix + "defaultNs",
	CleanModeVarName:    QBECMetadataPrefix + "cleanMode",
	Directives: Directives{
		ApplyOrder:   QBECDirectivesNamespace + "apply-order",
		DeletePolicy: QBECDirectivesNamespace + "delete-policy",
		UpdatePolicy: QBECDirectivesNamespace + "update-policy",
		WaitPolicy:   QBECDirectivesNamespace + "wait-policy",
	},
}

QbecNames is the set of names used by Qbec.

Functions

func AssertMetadataValid added in v0.10.0 

func AssertMetadataValid(data map[string]interface{}) error

AssertMetadataValid asserts that the object metadata for the supplied unstructured object is valid.

func NameForDisplay added in v0.7.1 

func NameForDisplay(m K8sMeta) string

NameForDisplay returns the local name of the metadata object, taking generated names into account.

func NewFilters added in v0.15.2 

func NewFilters(flags *pflag.FlagSet, includeAllFilters bool) func() (Filters, error)

NewFilters sets up options in the supplied flags and returns a function to return filters.

Types

type App 

type App struct {
	// contains filtered or unexported fields
}

App is a qbec application wrapped with some runtime attributes.

func NewApp 

func NewApp(file string, envFiles []string, tag string) (*App, error)

NewApp returns an app loading its details from the supplied file.

func (*App) AddComponentLabel added in v0.13.3 

func (a *App) AddComponentLabel() bool

AddComponentLabel returns if the qbec component name should be added as an object label in addition to the standard annotation.

func (*App) BaseProperties added in v0.10.2 

func (a *App) BaseProperties() map[string]interface{}

BaseProperties returns the baseline properties defined for the app.

func (*App) ClusterScopedLists added in v0.13.0 

func (a *App) ClusterScopedLists() bool

ClusterScopedLists returns the value of the qbec app attribute to determine if cluster scope lists should be performed when multiple namespaces are present.

func (*App) ComponentsForEnvironment 

func (a *App) ComponentsForEnvironment(env string, includes, excludes []string) ([]Component, error)

ComponentsForEnvironment returns a slice of components for the specified environment, taking intrinsic as well as specified inclusions and exclusions into account. All names in the supplied subsets must be valid component names. If a specified component is valid but has been excluded for the environment, it is simply not returned. The environment can be specified as the baseline environment.

func (*App) Context added in v0.11.1 

func (a *App) Context(env string) (string, error)

Context returns the context for the supplied environment, if set.

func (*App) DataSourceExamples added in v0.14.4 

func (a *App) DataSourceExamples() map[string]interface{}

DataSourceExamples returns example output for data sources keyed by name.

func (*App) DataSources added in v0.14.0 

func (a *App) DataSources() []string

DataSources returns the datasource URIs defined for the app.

func (*App) DeclaredComputedVars added in v0.14.0 

func (a *App) DeclaredComputedVars() []ComputedVar

DeclaredComputedVars returns a list of all computed variables.

func (*App) DeclaredTopLevelVars added in v0.6.2 

func (a *App) DeclaredTopLevelVars() map[string]interface{}

DeclaredTopLevelVars returns a map of all declared TLA variables, keyed by variable name. The values are always `true`.

func (*App) DeclaredVars added in v0.6.2 

func (a *App) DeclaredVars() map[string]interface{}

DeclaredVars returns defaults for all declared external variables, keyed by variable name.

func (*App) DefaultNamespace added in v0.6.2 

func (a *App) DefaultNamespace(env string) string

DefaultNamespace returns the default namespace for the environment, potentially suffixing it with any app-tag, if configured.

func (*App) Environments added in v0.7.1 

func (a *App) Environments() map[string]Environment

Environments returns the environments defined for the app.

func (*App) LibPaths added in v0.6.2 

func (a *App) LibPaths() []string

LibPaths returns the library paths set up for the app.

func (*App) Name 

func (a *App) Name() string

Name returns the name of the application.

func (*App) ParamsFile added in v0.6.2 

func (a *App) ParamsFile() string

ParamsFile returns the runtime parameters file for the app.

func (*App) PostProcessors added in v0.13.4 

func (a *App) PostProcessors() []string

PostProcessors returns the post processor files for the app.

func (*App) Properties added in v0.10.2 

func (a *App) Properties(env string) (map[string]interface{}, error)

Properties returns the configured properties for the supplied environment, merge patched into the base properties object.

func (*App) ServerURL added in v0.6.2 

func (a *App) ServerURL(env string) (string, error)

ServerURL returns the server URL for the supplied environment.

func (*App) SetOverrideNamespace added in v0.11.0 

func (a *App) SetOverrideNamespace(ns string)

SetOverrideNamespace sets an override namespace that is returned in preference to the value configured in qbec.yaml for any environment.

func (*App) Tag added in v0.6.2 

func (a *App) Tag() string

Tag returns the tag to be used for the current invocation.

type AppMeta 

type AppMeta struct {
	// required: true
	Name string `json:"name"`
}

AppMeta is the simplified metadata object for a qbec app.

type AppSpec 

type AppSpec struct {
	// directory containing component files, default to components/
	ComponentsDir string `json:"componentsDir,omitempty"`
	// standard file containing parameters for all environments returning correct values based on qbec.io/env external
	// variable, defaults to params.libsonnet
	ParamsFile string `json:"paramsFile,omitempty"`
	// file containing jsonnet code that can be used to post-process all objects, typically adding metadata like
	// annotations.
	PostProcessor string `json:"postProcessor,omitempty"`
	// the interface for jsonnet variables.
	Vars Variables `json:"vars,omitempty"`
	// data sources defined for the app.
	DataSources []string `json:"dataSources,omitempty"`
	// example outputs for data sources for linter use
	DataSourceExamples map[string]interface{} `json:"dsExamples,omitempty"`
	// set of environments for the app
	Environments map[string]Environment `json:"environments"`
	// additional environments pulled in from external files
	EnvFiles []string `json:"envFiles,omitempty"`
	// list of components to exclude by default for every environment
	Excludes []string `json:"excludes,omitempty"`
	// list of library paths to add to the jsonnet VM at evaluation
	LibPaths []string `json:"libPaths,omitempty"`
	// automatically suffix default namespace defined for environment when app-tag provided.
	NamespaceTagSuffix bool `json:"namespaceTagSuffix,omitempty"`
	// properties for the baseline environment, can be used to define what env properties should look like
	BaseProperties map[string]interface{} `json:"baseProperties,omitempty"`
	// whether remote lists for GC purposes should use cluster scoped queries
	// when multiple namespaces are present. Not used when only one namespace is present.
	ClusterScopedLists bool `json:"clusterScopedLists,omitempty"`
	// add component name as label to Kubernetes objects, default to false
	AddComponentLabel bool `json:"addComponentLabel,omitempty"`
}

AppSpec is the user-supplied configuration of the qbec app.

type Component 

type Component struct {
	Name         string   // component name
	Files        []string // path to main component file and possibly additional files
	TopLevelVars []string // the top-level variables used by the component
}

Component is one or more logically related files that contains objects to be applied to a cluster.

type ComputedVar added in v0.14.0 

type ComputedVar struct {
	Var
	Code string `json:"code"` // inline code
}

ComputedVar is a variable that is computed based on evaluating jsonnet code.

type Directives added in v0.10.0 

type Directives struct {
	ApplyOrder   string // numeric apply order for object
	DeletePolicy string // delete policy "default" | "never"
	UpdatePolicy string // update policy "default" | "never"
	WaitPolicy   string // wait policy "default" | "never"
}

Directives is the list of directive names we support.

type Environment 

type Environment struct {
	DefaultNamespace string                 `json:"defaultNamespace"`     // default namespace to set for k8s context
	Server           string                 `json:"server,omitempty"`     // server URL of server, must be present unless
	Context          string                 `json:"context,omitempty"`    // named context to use instead of deriving from server URL
	Includes         []string               `json:"includes,omitempty"`   // components to be included in this env even if excluded at the app level
	Excludes         []string               `json:"excludes,omitempty"`   // additional components to exclude for this env
	Properties       map[string]interface{} `json:"properties,omitempty"` // properties attached to the environment, exposed via an extvar
}

Environment points to a specific destination and has its own set of runtime parameters.

type ExternalVar added in v0.6.2 

type ExternalVar struct {
	Var
	Default interface{} `json:"default,omitempty"` // the default value to use if none specified on the command line.
}

ExternalVar is a variable that is set as an extVar in the jsonnet VM

type Filter 

type Filter interface {
	HasFilters() bool            // returns true if filtering is needed
	ShouldInclude(s string) bool // returns true if the supplied string matches the filter
}

Filter filters inputs.

func NewComponentFilter 

func NewComponentFilter(includes, excludes []string) (Filter, error)

NewComponentFilter returns a filter for component names.

type Filters added in v0.15.2 

type Filters struct {
	// contains filtered or unexported fields
}

Filters is a collection of filters.

func (Filters) ComponentExcludes added in v0.15.2 

func (f Filters) ComponentExcludes() []string

ComponentExcludes returns the components requested to be excluded

func (Filters) ComponentIncludes added in v0.15.2 

func (f Filters) ComponentIncludes() []string

ComponentIncludes returns the components requested to be included

func (Filters) GVKFilter added in v0.15.2 

func (f Filters) GVKFilter(gvk schema.GroupVersionKind) bool

GVKFilter returns true if the supplied GVK should be included.

func (Filters) HasNamespaceFilters added in v0.15.2 

func (f Filters) HasNamespaceFilters() bool

HasNamespaceFilters returns true if filters based on namespace scope are in effect.

func (Filters) Match added in v0.15.2 

func (f Filters) Match(o K8sQbecMeta, client Namespaced, defaultNS string) (bool, error)

Match returns true if the current filters match the supplied object. The client can be nil if namespace scope filters are not in effect.

type K8sLocalObject 

type K8sLocalObject interface {
	K8sObject
	QbecMeta
}

K8sLocalObject is the interface to access a kubernetes object that has additional qbec attributes. It can be serialized to valid JSON or YAML that represents the fully-formed object.

func NewK8sLocalObject 

func NewK8sLocalObject(data map[string]interface{}, attrs LocalAttrs) K8sLocalObject

NewK8sLocalObject wraps a K8sLocalObject implementation around the unstructured object data specified as a bag of attributes for the supplied application, component and environment.

type K8sMeta 

type K8sMeta interface {
	GetKind() string
	GroupVersionKind() schema.GroupVersionKind
	GetNamespace() string
	GetName() string
	GetGenerateName() string
	GetAnnotations() map[string]string
}

K8sMeta is the minimum metadata needed for an object and is satisfied by an unstructured.Unstructured instance.

type K8sObject 

type K8sObject interface {
	K8sMeta
	ToUnstructured() *unstructured.Unstructured
}

K8sObject is the interface to access a kubernetes object. It can be serialized to valid JSON or YAML that represents the fully-formed object.

func NewK8sObject 

func NewK8sObject(data map[string]interface{}) K8sObject

NewK8sObject wraps a K8sObject implementation around the unstructured object data specified as a bag of attributes.

type K8sQbecMeta 

type K8sQbecMeta interface {
	K8sMeta
	QbecMeta
}

K8sQbecMeta has K8s as well as qbec metadata.

type LocalAttrs added in v0.13.4 

type LocalAttrs struct {
	App               string
	Tag               string
	Component         string
	Env               string
	SetComponentLabel bool
}

LocalAttrs are the attributes used to create local k8s objects.

type Namespaced added in v0.15.2 

type Namespaced interface {
	IsNamespaced(gvk schema.GroupVersionKind) (bool, error)
}

Namespaced provides metadata relating to whether a K8s type is namespaced or cluster scoped.

type QbecApp 

type QbecApp struct {
	// object kind
	// required: true
	// pattern: ^App$
	Kind string `json:"kind"`
	// requested API version
	// required: true
	APIVersion string `json:"apiVersion"`
	// app metadata
	// required: true
	Metadata AppMeta `json:"metadata,omitempty"`
	// app specification
	// required: true
	Spec AppSpec `json:"spec"`
}

QbecApp is a set of components that can be applied to multiple environments with tweaked runtime configurations. The list of all components for the app is derived as all the supported (jsonnet, json, yaml) files in the components subdirectory. swagger:model App

type QbecEnvironmentMap added in v0.10.2 

type QbecEnvironmentMap struct {
	// object kind
	// required: true
	// pattern: ^Environments$
	Kind string `json:"kind"`
	// requested API version
	// required: true
	APIVersion string `json:"apiVersion"`
	// environments spec
	// require: true
	Spec QbecEnvironmentMapSpec `json:"spec"`
}

QbecEnvironmentMap is a standalone object that contains a map of environments keyed by name.

type QbecEnvironmentMapSpec added in v0.10.2 

type QbecEnvironmentMapSpec struct {
	// set of declared environments, keyed by name
	// required: true
	Environments map[string]Environment `json:"environments"`
}

QbecEnvironmentMapSpec is the spec for a QbecEnvironmentMap object.

type QbecMeta 

type QbecMeta interface {
	Application() string // the application name
	Component() string   // the component name
	Environment() string // the environment name
	Tag() string         // the GC Tag name
}

QbecMeta provides qbec metadata.

type TopLevelVar added in v0.6.2 

type TopLevelVar struct {
	Var
	Components []string `json:"components,omitempty"` // the components for which this TLA is applicable
}

TopLevelVar is a variable that is set as a TLA in the jsonnet VM. Note that there is no provision to set a default value - default values should be set in the jsonnet code instead.

type Var added in v0.6.2 

type Var struct {
	Name   string `json:"name"`             // variable name
	Secret bool   `json:"secret,omitempty"` // true if the variable is a secret
}

Var is a base variable.

type Variables added in v0.6.2 

type Variables struct {
	External []ExternalVar `json:"external,omitempty"` // collection of ext vars
	TopLevel []TopLevelVar `json:"topLevel,omitempty"` // collection of TLAs
	Computed []ComputedVar `json:"computed,omitempty"` // ordered collection of computed vars
}

Variables is a collection of external and top-level variables.

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