Documentation
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Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
func WriteVars ¶
WriteVars will write the outputs from a foundation and put them into a key/value file within the foundation directories that is available when uploaded. This allows the build scripts to access the outputs at runtime.
Ideally this sort of thing would be possible at compile-time but the values of these variables come at runtime so we need to populate this at runtime.
By having a var file, it removes the burden of knowing what variables to send in to the foundation from the App implementation. They just need to call this function, upload the folder, and call main.sh.
Types ¶
type CompileResult ¶
type CompileResult struct{}
CompileResult is the structure containing compilation result values.
This is empty now but may be used in the future.
type Config ¶
type Config struct {
// Service settings are used to configure the service discovery
// (if there is any).
//
// ServiceName is the name of the service. If this is blank,
// service discovery won't be configured for this application.
//
// ServicePort is the port this service is running on.
//
// ServiceTags is a list of tags associated with the service.
ServiceName string
ServicePort int
ServiceTags []string
}
Config is the configuration of the various foundational domains that Otto supports.
type Context ¶
type Context struct {
// Action is the sub-action to take when being executed.
//
// ActionArgs is the list of arguments for this action.
//
// Both of these fields will only be set for the Infra call currently.
Action string
ActionArgs []string
// Config is the raw configuration from the Appfile itself for
// this foundation.
Config map[string]interface{}
// AppConfig is the foundation configuration that was returned by the
// application that we're working with. This is only available during
// the Compile function if we're compiling for an application.
//
// It should be expected during compilation that this might be nil.
// The cases where it is nil are not currently well defined, but the
// behavior in the nil case should be to do nothing except Deploy.
AppConfig *Config
// Dir is the directory that the compilation is allowed to write to
// for persistant storage of data that is available during task
// execution. For tasks, this will be the directory that compilation
// wrote to. Whenever a compilation is done, this directory is
// cleared. Data that should be persistant across compilations should
// be stored in the directory service.
Dir string
// Tuple is the tuple used for this foundation.
Tuple Tuple
}
Context is the context for operations on a Foundation.
type Factory ¶
type Factory func() (Foundation, error)
Factory is a factory function for creating foundations.
func StructFactory ¶
func StructFactory(v Foundation) Factory
StructFactory returns a factory function for creating a newly instantiated copy of the type of v.
type Foundation ¶
type Foundation interface {
// Compile is called to compile the files that are used to manage
// this foundation.
Compile(*Context) (*CompileResult, error)
// Infra is called to build or destroy the infrastructure for this
// foundation. The "Action" field in the Context can be used to
// determine the desired action. This will be either "" (build)
// or "destroy". Foundations currently don't support any other
// actions.
Infra(*Context) error
}
Foundation is the interface that must be implemented by each foundation. A foundation is a fundamental building block of a real infrastructure, and can be categorized such as service discovery, security, etc.
Foundations are bound to a (name, infra type, infra flavor) 3-tuple.
type Tuple ¶
type Tuple struct {
Type string // Type is the foundation type, i.e. "consul"
Infra string // Infra is the infra type, i.e. "aws"
InfraFlavor string // InfraFlavor is the flavor, i.e. "vpc-public-private"
}
Tuple is the tupled used for looking up the Foundation implementation for an Appfile. This struct is usually used in its non-pointer form, to be a key for maps.
type TupleMap ¶
TupleMap is an alias of map[Tuple]Factory that adds additional helper methods on top to help work with app tuples.
type TupleSlice ¶
type TupleSlice []Tuple
TupleSlice is an alias of []Tuple that implements sort.Interface for sorting tuples. See the tests in tuple_test.go to see the sorting order.
func (TupleSlice) Less ¶
func (s TupleSlice) Less(i, j int) bool
func (TupleSlice) Map ¶
func (s TupleSlice) Map(f Factory) TupleMap
Map turns a TupleSlice into a map where all the tuples in the slice are mapped to a single factory function.
func (TupleSlice) Swap ¶
func (s TupleSlice) Swap(i, j int)
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