extensions

Documentation

Index

• Constants
• Variables
• func BuildPrerequisiteInstallationName(installation string, dependency string) string
• func DependencyReader(bun bundle.Bundle) (interface{}, error)
• func DockerExtensionReader(bun bundle.Bundle) (interface{}, error)
• func HasDependencies(bun bundle.Bundle) bool
• func HasParameterSources(b bundle.Bundle) bool
• func ParameterSourcesReader(bun bundle.Bundle) (interface{}, error)
• type Dependencies
  • func ReadDependencies(bun bundle.Bundle) (Dependencies, error)
  • func (d Dependencies) ListBySequence() []Dependency
• type Dependency
• type DependencyLock
• type DependencyOutputParameterSource
• type DependencySolver
  • func (s *DependencySolver) ResolveDependencies(bun bundle.Bundle) ([]DependencyLock, error)
  • func (s *DependencySolver) ResolveVersion(name string, dep Dependency) (reference.NamedTagged, error)
• type DependencyVersion
• type Docker
• type OutputParameterSource
• type ParameterSource
  • func (s ParameterSource) ListSourcesByPriority() []ParameterSourceDefinition
• type ParameterSourceDefinition
• type ParameterSourceMap
  • func (m *ParameterSourceMap) UnmarshalJSON(data []byte) error
• type ParameterSources
  • func ReadParameterSources(bun bundle.Bundle) (ParameterSources, error)
  • func (ps *ParameterSources) SetParameterFromDependencyOutput(parameter string, dep string, output string)
  • func (ps *ParameterSources) SetParameterFromOutput(parameter string, output string)
• type ProcessedExtensions
  • func ProcessRequiredExtensions(b bundle.Bundle) (ProcessedExtensions, error)
  • func (e ProcessedExtensions) GetDocker() (dockerExt Docker, dockerRequired bool, err error)
  • func (e ProcessedExtensions) GetParameterSources() (ParameterSources, bool, error)
• type RequiredExtension
  • func GetSupportedExtension(e string) (*RequiredExtension, error)

Constants

const (
	// DependenciesKey represents the full key for the Dependencies Extension
	DependenciesKey = "io.cnab.dependencies"
	// DependenciesSchema represents the schema for the Dependencies Extension
	DependenciesSchema = "https://cnab.io/v1/dependencies.schema.json"
)

const (
	// DockerExtensionKey represents the full key for the Docker Extension
	DockerExtensionKey = "io.cnab.docker"
	// DockerExtensionSchema represents the schema for the Docker Extension
	DockerExtensionSchema = "schema/io-cnab-docker.schema.json"
)

const (
	// ParameterSourcesExtensionKey represents the full key for the Parameter Sources Extension.
	ParameterSourcesKey = "io.cnab.parameter-sources"
	// ParameterSourcesExtensionSchema represents the schema for the Docker Extension.
	ParameterSourcesSchema = "https://cnab.io/v1/parameter-sources.schema.json"
	// ParameterSourceTypeOutput defines a type of parameter source that is provided by a bundle output.
	ParameterSourceTypeOutput = "output"
	// ParameterSourceTypeDependencyOutput defines a type of parameter source that is provided by a bundle's dependency
	// output.
	ParameterSourceTypeDependencyOutput = "dependencies.output"
)

Variables

var DependenciesExtension = RequiredExtension{
	Shorthand: "dependencies",
	Key:       DependenciesKey,
	Schema:    DependenciesSchema,
	Reader:    DependencyReader,
}

DependenciesExtension represents the required extension to enable dependencies

var DockerExtension = RequiredExtension{
	Shorthand: "docker",
	Key:       DockerExtensionKey,
	Schema:    DockerExtensionSchema,
	Reader:    DockerExtensionReader,
}

DockerExtension represents a required extension enabling access to the host Docker daemon

var ParameterSourcesExtension = RequiredExtension{
	Shorthand: "parameter-sources",
	Key:       ParameterSourcesKey,
	Schema:    ParameterSourcesSchema,
	Reader:    ParameterSourcesReader,
}

ParameterSourcesExtension represents a required extension that specifies how to default parameter values.

var SupportedExtensions = []RequiredExtension{
	DependenciesExtension,
	DockerExtension,
	ParameterSourcesExtension,
}

SupportedExtensions represent a listing of the current required extensions that Porter supports

Functions

func BuildPrerequisiteInstallationName

func BuildPrerequisiteInstallationName(installation string, dependency string) string

BuildPrerequisiteInstallationName generates the name of a prerequisite dependency installation.

func DependencyReader

func DependencyReader(bun bundle.Bundle) (interface{}, error)

DependencyReader is a Reader for the DependenciesExtension, which reads from the applicable section in the provided bundle and returns a the raw data in the form of an interface

func DockerExtensionReader

func DockerExtensionReader(bun bundle.Bundle) (interface{}, error)

DockerExtensionReader is a Reader for the DockerExtension, which reads from the applicable section in the provided bundle and returns a the raw data in the form of an interface

func HasDependencies

func HasDependencies(bun bundle.Bundle) bool

HasDependencies returns whether or not the bundle has dependencies defined.

func HasParameterSources

func HasParameterSources(b bundle.Bundle) bool

HasParameterSources returns whether or not the bundle has parameter sources defined.

func ParameterSourcesReader

func ParameterSourcesReader(bun bundle.Bundle) (interface{}, error)

ParameterSourcesReader is a Reader for the ParameterSourcesExtension, which reads from the applicable section in the provided bundle and returns a the raw data in the form of an interface

Types

type Dependencies

type Dependencies struct {
	// Sequence is a list to order the dependencies
	Sequence []string `json:"sequence,omitempty" mapstructure:"sequence"`

	// Requires is a list of bundles required by this bundle
	Requires map[string]Dependency `json:"requires,omitempty" mapstructure:"requires"`
}

Dependencies describes the set of custom extension metadata associated with the dependencies spec https://github.com/cnabio/cnab-spec/blob/master/500-CNAB-dependencies.md

func ReadDependencies

func ReadDependencies(bun bundle.Bundle) (Dependencies, error)

ReadDependencies is a convenience method for returning a bonafide Dependencies reference after reading from the applicable section from the provided bundle

func (Dependencies) ListBySequence

func (d Dependencies) ListBySequence() []Dependency

ListBySequence returns the dependencies by the defined sequence, if none is specified, they are unsorted.

type Dependency

type Dependency struct {
	// Name of the dependency
	Name string `json:"name" mapstructure:"name"`

	// Bundle is the location of the bundle in a registry, for example REGISTRY/NAME:TAG
	Bundle string `json:"bundle" mapstructure:"bundle"`

	// Version is a set of allowed versions
	Version *DependencyVersion `json:"version,omitempty" mapstructure:"version"`
}

Dependency describes a dependency on another bundle

type DependencyLock

type DependencyLock struct {
	Alias     string
	Reference string
}

type DependencyOutputParameterSource

type DependencyOutputParameterSource struct {
	Dependency string `json:"dependency" mapstructure:"dependency"`
	OutputName string `json:"name" mapstructure:"name"`
}

DependencyOutputParameterSource represents a parameter that is set using the value from a bundle's dependency output.

type DependencySolver

type DependencySolver struct {
}

func (*DependencySolver) ResolveDependencies

func (s *DependencySolver) ResolveDependencies(bun bundle.Bundle) ([]DependencyLock, error)

func (*DependencySolver) ResolveVersion

func (s *DependencySolver) ResolveVersion(name string, dep Dependency) (reference.NamedTagged, error)

ResolveVersion returns the bundle name, its version and any error.

type DependencyVersion

type DependencyVersion struct {
	// Ranges of semantic versions, with or without the leading v prefix, allowed by the dependency
	Ranges []string `json:"ranges,omitempty" mapstructure:"ranges"`

	// AllowPrereleases specifies if prerelease versions can satisfy the dependency
	AllowPrereleases bool `json:"prereleases" mapstructure:"prereleases"`
}

DependencyVersion is a set of allowed versions for a dependency

type Docker

type Docker struct {
	// Privileged represents whether or not the Docker container should run as --privileged
	Privileged bool `json:"privileged,omitempty"`
}

Docker describes the set of custom extension metadata associated with the Docker extension

type OutputParameterSource

type OutputParameterSource struct {
	OutputName string `json:"name" mapstructure:"name"`
}

OutputParameterSource represents a parameter that is set using the value from a bundle output.

type ParameterSource

type ParameterSource struct {
	// Priority is an array of source types in the priority order that they should be used to
	// populated the parameter.
	Priority []string `json:"priority" mapstructure:"priority"`

	// Sources is a map of key/value pairs of a source type and definition for
	// the parameter value.
	Sources ParameterSourceMap `json:"sources" mapstructure:"sources"`
}

func (ParameterSource) ListSourcesByPriority

func (s ParameterSource) ListSourcesByPriority() []ParameterSourceDefinition

ListSourcesByPriority returns the parameter sources by the requested priority, if none is specified, they are unsorted.

type ParameterSourceDefinition

type ParameterSourceDefinition interface {
}

type ParameterSourceMap

type ParameterSourceMap map[string]ParameterSourceDefinition

func (*ParameterSourceMap) UnmarshalJSON

func (m *ParameterSourceMap) UnmarshalJSON(data []byte) error

type ParameterSources

type ParameterSources map[string]ParameterSource

ParameterSources describes the set of custom extension metadata associated with the Parameter Sources extension

func ReadParameterSources

func ReadParameterSources(bun bundle.Bundle) (ParameterSources, error)

ReadParameterSources is a convenience method for returning a bonafide ParameterSources reference after reading from the applicable section from the provided bundle

func (*ParameterSources) SetParameterFromDependencyOutput

func (ps *ParameterSources) SetParameterFromDependencyOutput(parameter string, dep string, output string)

SetParameterFromDependencyOutput creates an entry in the parameter sources section setting the parameter's value using the specified dependency's output value.

func (*ParameterSources) SetParameterFromOutput

func (ps *ParameterSources) SetParameterFromOutput(parameter string, output string)

SetParameterFromOutput creates an entry in the parameter sources section setting the parameter's value using the specified output's value.

type ProcessedExtensions

type ProcessedExtensions map[string]interface{}

ProcessedExtensions represents a map of the extension name to the processed extension configuration

func ProcessRequiredExtensions

func ProcessRequiredExtensions(b bundle.Bundle) (ProcessedExtensions, error)

ProcessRequiredExtensions checks all required extensions in the provided bundle and makes sure Porter supports them.

If an unsupported required extension is found, an error is returned.

For each supported required extension, the configuration for that extension is read and returned in the form of a map of the extension name to the extension configuration

func (ProcessedExtensions) GetDocker

func (e ProcessedExtensions) GetDocker() (dockerExt Docker, dockerRequired bool, err error)

GetDocker checks if the docker extension is present and returns its extension configuration.

func (ProcessedExtensions) GetParameterSources

func (e ProcessedExtensions) GetParameterSources() (ParameterSources, bool, error)

GetParameterSources checks if the parameter sources extension is present and returns its extension configuration.

type RequiredExtension

type RequiredExtension struct {
	Shorthand string
	Key       string
	Schema    string
	Reader    func(b bundle.Bundle) (interface{}, error)
}

RequiredExtension represents a required extension that is known and supported by Porter

func GetSupportedExtension

func GetSupportedExtension(e string) (*RequiredExtension, error)

GetSupportedExtension returns a supported extension according to the provided name, or an error