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70 lines
2.9 KiB
Go
70 lines
2.9 KiB
Go
package terraform
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import (
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"github.com/hashicorp/terraform/configs/configschema"
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"github.com/hashicorp/terraform/provisioners"
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)
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// ResourceProvisioner is an interface that must be implemented by any
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// resource provisioner: the thing that initializes resources in
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// a Terraform configuration.
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type ResourceProvisioner interface {
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// GetConfigSchema returns the schema for the provisioner type's main
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// configuration block. This is called prior to Validate to enable some
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// basic structural validation to be performed automatically and to allow
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// the configuration to be properly extracted from potentially-ambiguous
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// configuration file formats.
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GetConfigSchema() (*configschema.Block, error)
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// Validate is called once at the beginning with the raw
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// configuration (no interpolation done) and can return a list of warnings
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// and/or errors.
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//
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// This is called once per resource.
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//
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// This should not assume any of the values in the resource configuration
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// are valid since it is possible they have to be interpolated still.
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// The primary use case of this call is to check that the required keys
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// are set and that the general structure is correct.
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Validate(*ResourceConfig) ([]string, []error)
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// Apply runs the provisioner on a specific resource and returns an error.
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// Instead of a diff, the ResourceConfig is provided since provisioners
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// only run after a resource has been newly created.
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Apply(UIOutput, *InstanceState, *ResourceConfig) error
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// Stop is called when the provisioner should halt any in-flight actions.
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//
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// This can be used to make a nicer Ctrl-C experience for Terraform.
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// Even if this isn't implemented to do anything (just returns nil),
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// Terraform will still cleanly stop after the currently executing
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// graph node is complete. However, this API can be used to make more
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// efficient halts.
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//
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// Stop doesn't have to and shouldn't block waiting for in-flight actions
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// to complete. It should take any action it wants and return immediately
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// acknowledging it has received the stop request. Terraform core will
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// automatically not make any further API calls to the provider soon
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// after Stop is called (technically exactly once the currently executing
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// graph nodes are complete).
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//
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// The error returned, if non-nil, is assumed to mean that signaling the
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// stop somehow failed and that the user should expect potentially waiting
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// a longer period of time.
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Stop() error
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}
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// ResourceProvisionerCloser is an interface that provisioners that can close
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// connections that aren't needed anymore must implement.
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type ResourceProvisionerCloser interface {
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Close() error
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}
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// ResourceProvisionerFactory is a function type that creates a new instance
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// of a resource provisioner.
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type ResourceProvisionerFactory func() (ResourceProvisioner, error)
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// ProvisionerFactory is a function type that creates a new instance
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// of a provisioners.Interface.
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type ProvisionerFactory = provisioners.Factory
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