16ade183d8
This change adds a new manifest section to the checkpoint files.
The existing time moves into it, and we add to it the version of
the Pulumi CLI that created it, along with the names, types, and
versions of all plugins used to generate the file. There is a
magic cookie that we also use during verification.
This is to help keep us sane when debugging problems "in the wild,"
and I'm sure we will add more to it over time (checksum, etc).
For example, after an up, you can now see this in `pulumi stack`:
```
Current stack is demo:
Last updated at 2017-12-01 13:48:49.815740523 -0800 PST
Pulumi version v0.8.3-79-g1ab99ad
Plugin pulumi-provider-aws [resource] version v0.8.3-22-g4363e77
Plugin pulumi-langhost-nodejs [language] version v0.8.3-79-g77bb6b6
Checkpoint file is /Users/joeduffy/dev/code/src/github.com/pulumi/pulumi-aws/.pulumi/stacks/webserver/demo.json
```
This addresses pulumi/pulumi#628.
61 lines
3.3 KiB
Go
61 lines
3.3 KiB
Go
// Copyright 2016-2017, Pulumi Corporation. All rights reserved.
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package plugin
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import (
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"io"
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"github.com/pulumi/pulumi/pkg/resource"
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"github.com/pulumi/pulumi/pkg/tokens"
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)
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// Provider presents a simple interface for orchestrating resource create, reead, update, and delete operations. Each
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// provider understands how to handle all of the resource types within a single package.
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//
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// This interface hides some of the messiness of the underlying machinery, since providers are behind an RPC boundary.
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//
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// It is important to note that provider operations are not transactional. (Some providers might decide to offer
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// transactional semantics, but such a provider is a rare treat.) As a result, failures in the operations below can
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// range from benign to catastrophic (possibly leaving behind a corrupt resource). It is up to the provider to make a
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// best effort to ensure catastrophes do not occur. The errors returned from mutating operations indicate both the
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// underlying error condition in addition to a bit indicating whether the operation was successfully rolled back.
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type Provider interface {
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// Closer closes any underlying OS resources associated with this provider (like processes, RPC channels, etc).
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io.Closer
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// Pkg fetches this provider's package.
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Pkg() tokens.Package
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// Configure configures the resource provider with "globals" that control its behavior.
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Configure(vars map[tokens.ModuleMember]string) error
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// Check validates that the given property bag is valid for a resource of the given type.
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Check(urn resource.URN, props resource.PropertyMap) (resource.PropertyMap, []CheckFailure, error)
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// Diff checks what impacts a hypothetical update will have on the resource's properties.
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Diff(urn resource.URN, id resource.ID, olds resource.PropertyMap, news resource.PropertyMap) (DiffResult, error)
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// Create allocates a new instance of the provided resource and returns its unique resource.ID.
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Create(urn resource.URN, props resource.PropertyMap) (resource.ID, resource.PropertyMap, resource.Status, error)
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// Update updates an existing resource with new values.
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Update(urn resource.URN, id resource.ID,
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olds resource.PropertyMap, news resource.PropertyMap) (resource.PropertyMap, resource.Status, error)
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// Delete tears down an existing resource.
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Delete(urn resource.URN, id resource.ID, props resource.PropertyMap) (resource.Status, error)
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// Invoke dynamically executes a built-in function in the provider.
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Invoke(tok tokens.ModuleMember, args resource.PropertyMap) (resource.PropertyMap, []CheckFailure, error)
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// GetPluginInfo returns this plugin's information.
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GetPluginInfo() (Info, error)
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}
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// CheckFailure indicates that a call to check failed; it contains the property and reason for the failure.
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type CheckFailure struct {
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Property resource.PropertyKey // the property that failed checking.
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Reason string // the reason the property failed to check.
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}
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// DiffResult indicates whether an operation should replace or update an existing resource.
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type DiffResult struct {
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ReplaceKeys []resource.PropertyKey // an optional list of replacement keys.
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StableKeys []resource.PropertyKey // an optional list of property keys that are stable.
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}
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// Replace returns true if this diff represents a replacement.
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func (r DiffResult) Replace() bool {
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return len(r.ReplaceKeys) > 0
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}
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