Kerry.Engine

All strings within templates are processed by a common Packer templating engine, where variables and functions can be used to modify the value of a configuration parameter at runtime.

Documentation

newtype Template

Constructors

Template

Fields

• renderTemplate :: Text

Instances

Eq Template

Defined in Kerry.Engine

Methods

(==) :: Template -> Template -> Bool

(/=) :: Template -> Template -> Bool

Show Template

Defined in Kerry.Engine

Methods

showsPrec :: Int -> Template -> ShowS

show :: Template -> String

showList :: [Template] -> ShowS

data RawTemplate

Instances

Eq RawTemplate

Defined in Kerry.Engine

Methods

(==) :: RawTemplate -> RawTemplate -> Bool

(/=) :: RawTemplate -> RawTemplate -> Bool

Show RawTemplate

Defined in Kerry.Engine

Methods

showsPrec :: Int -> RawTemplate -> ShowS

show :: RawTemplate -> String

showList :: [RawTemplate] -> ShowS

toTemplate :: RawTemplate -> Template

renderRawTemplate :: RawTemplate -> Text

User Variable

user :: Text -> RawTemplate

User variables

Template Variable

templateVariable :: Text -> Template

Template variables are special variables automatically set by Packer at build time. Some builders, provisioners and other components have template variables that are available only for that component. Template variables are recognizable because they're prefixed by a period, such as {{ .Name }}.

Functions

buildName :: RawTemplate

The name of the build being run.

buildType :: RawTemplate

The type of the builder being used currently.

env :: Text -> RawTemplate

Returns environment variables. See example in using home variable

isotime :: Text -> RawTemplate

UTC time, which can be formatted. See more examples below in the isotime format reference.

lower :: RawTemplate

Lowercases the string.

pwd :: RawTemplate

The working directory while executing Packer.

sed :: Text -> Text -> RawTemplate

Use a golang implementation of sed to parse an input string.

split :: Text -> Text -> Int -> RawTemplate

Split an input string using separator and return the requested substring.

templateDir :: RawTemplate

The directory to the template for the build.

timestamp :: RawTemplate

The current Unix timestamp in UTC.

uuid :: RawTemplate

Returns a random UUID.

upper :: RawTemplate

Uppercases the string.

packerVersion :: RawTemplate

Returns Packer version.

cleanResourceName :: RawTemplate

Image names can only contain certain characters and have a maximum length, eg 63 on GCE & 80 on Azure. clean_resource_name will convert upper cases to lower cases and replace illegal characters with a "-" character.