pulumi/sdk/nodejs/resource.ts

1515 lines
54 KiB
TypeScript

// Copyright 2016-2018, Pulumi Corporation.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import * as url from "url";
import { ResourceError } from "./errors";
import * as log from "./log";
import { Input, Inputs, interpolate, Output, output } from "./output";
import {
getResource,
readResource,
registerResource,
registerResourceOutputs,
SourcePosition,
} from "./runtime/resource";
import { unknownValue } from "./runtime/rpc";
import { getProject, getStack } from "./runtime/settings";
import { getStackResource } from "./runtime/state";
import * as utils from "./utils";
export type ID = string; // a provider-assigned ID.
export type URN = string; // an automatically generated logical URN, used to stably identify resources.
/**
* {@link createUrn} computes a URN from the combination of a resource name,
* resource type, optional parent, optional project and optional stack.
*/
export function createUrn(
name: Input<string>,
type: Input<string>,
parent?: Resource | Input<URN>,
project?: string,
stack?: string,
): Output<string> {
let parentPrefix: Output<string>;
if (parent) {
let parentUrn: Output<string>;
if (Resource.isInstance(parent)) {
parentUrn = parent.urn;
} else {
parentUrn = output(parent);
}
parentPrefix = parentUrn.apply((parentUrnString) => {
const prefix = parentUrnString.substring(0, parentUrnString.lastIndexOf("::")) + "$";
if (prefix.endsWith("::pulumi:pulumi:Stack$")) {
// Don't prefix the stack type as a parent type
return `urn:pulumi:${stack || getStack()}::${project || getProject()}::`;
}
return prefix;
});
} else {
parentPrefix = output(`urn:pulumi:${stack || getStack()}::${project || getProject()}::`);
}
return interpolate`${parentPrefix}${type}::${name}`;
}
/**
* {@link inheritedChildAlias} computes the alias that should be applied to a
* child based on an alias applied to its parent. This may involve changing the
* name of the resource in cases where the resource has a named derived from the
* name of the parent, and the parent name changed.
*/
function inheritedChildAlias(
childName: string,
parentName: string,
parentAlias: Input<string>,
childType: string,
): Output<string> {
// If the child name has the parent name as a prefix, then we make the assumption that it was
// constructed from the convention of using `{name}-details` as the name of the child resource. To
// ensure this is aliased correctly, we must then also replace the parent aliases name in the prefix of
// the child resource name.
//
// For example:
// * name: "newapp-function"
// * opts.parent.__name: "newapp"
// * parentAlias: "urn:pulumi:stackname::projectname::awsx:ec2:Vpc::app"
// * parentAliasName: "app"
// * aliasName: "app-function"
// * childAlias: "urn:pulumi:stackname::projectname::aws:s3/bucket:Bucket::app-function"
let aliasName = output(childName);
if (childName.startsWith(parentName)) {
aliasName = output(parentAlias).apply((parentAliasUrn) => {
const parentAliasName = parentAliasUrn.substring(parentAliasUrn.lastIndexOf("::") + 2);
return parentAliasName + childName.substring(parentName.length);
});
}
return createUrn(aliasName, childType, parentAlias);
}
/**
* Extracts the type and name from a URN.
*/
function urnTypeAndName(urn: URN) {
const parts = urn.split("::");
const typeParts = parts[2].split("$");
return {
name: parts[3],
type: typeParts[typeParts.length - 1],
};
}
/**
* {@link allAliases} computes the full set of aliases for a child resource
* given a set of aliases applied to the child and parent resources. This
* includes the child resource's own aliases, as well as aliases inherited from
* the parent. If there are N child aliases, and M parent aliases, there will be
* (M+1)*(N+1)-1 total aliases, or, as calculated in the logic below,
* N+(M*(1+N)).
*/
export function allAliases(
childAliases: Input<URN | Alias>[],
childName: string,
childType: string,
parent: Resource,
parentName: string,
): Output<URN>[] {
const aliases: Output<URN>[] = [];
for (const childAlias of childAliases) {
aliases.push(collapseAliasToUrn(childAlias, childName, childType, parent));
}
for (const parentAlias of parent.__aliases || []) {
// For each parent alias, add an alias that uses that base child name and the parent alias
aliases.push(inheritedChildAlias(childName, parentName, parentAlias, childType));
// Also add an alias for each child alias and the parent alias
for (const childAlias of childAliases) {
const inheritedAlias = collapseAliasToUrn(childAlias, childName, childType, parent).apply(
(childAliasURN) => {
const { name: aliasedChildName, type: aliasedChildType } = urnTypeAndName(childAliasURN);
return inheritedChildAlias(aliasedChildName, parentName, parentAlias, aliasedChildType);
},
);
aliases.push(inheritedAlias);
}
}
return aliases;
}
/**
* {@link Resource} represents a class whose CRUD operations are implemented by
* a provider plugin.
*/
export abstract class Resource {
/**
* A regexp for use with {@link sourcePosition}.
*/
private static sourcePositionRegExp =
/Error:\s*\n\s*at new Resource \(.*\)\n\s*at new \S*Resource \(.*\)\n(\s*at new \S* \(.*\)\n)?[^(]*\((?<file>.*):(?<line>[0-9]+):(?<col>[0-9]+)\)\n/;
/**
* A private field to help with RTTI that works in SxS scenarios.
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
public readonly __pulumiResource: boolean = true;
/**
* The optional parent of this resource.
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
public readonly __parentResource: Resource | undefined;
/**
* The child resources of this resource. We use these (only from a
* {@link ComponentResource}) to allow code to depend on a
* {@link ComponentResource} and have that effectively mean that it is
* depending on all the {@link CustomResource} children of that component.
*
* Important! We only walk through {@link ComponentResources}. They're the
* only resources that serve as an aggregation of other primitive (i.e.
* custom) resources. While a custom resource can be a parent of other
* resources, we don't want to ever depend on those child resources. If we
* do, it's simple to end up in a situation where we end up depending on a
* child resource that has a data cycle dependency due to the data passed
* into it.
*
* An example of how this would be bad is:
*
* ```ts
* var c1 = new CustomResource("c1");
* var c2 = new CustomResource("c2", { parentId: c1.id }, { parent: c1 });
* var c3 = new CustomResource("c3", { parentId: c1.id }, { parent: c1 });
* ```
*
* The problem here is that 'c2' has a data dependency on 'c1'. If it tries
* to wait on `c1` it will walk to the children and wait on them. This will
* mean it will wait on `c3`. But `c3` will be waiting in the same manner
* on `c2`, and a cycle forms.
*
* This normally does not happen with component resources as they do not
* have any data flowing into them. The only way you would be able to have a
* problem is if you had this sort of coding pattern:
*
* ```ts
* var c1 = new ComponentResource("c1");
* var c2 = new CustomResource("c2", { parentId: c1.urn }, { parent: c1 });
* var c3 = new CustomResource("c3", { parentId: c1.urn }, { parent: c1 });
* ```
*
* However, this would be pretty nonsensical as there is zero need for a
* custom resource to ever need to reference the URN of a component
* resource. So it's acceptable if that sort of pattern fails in practice.
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
public __childResources: Set<Resource> | undefined;
/**
* The stable logical URN used to distinctly address a resource, both before
* and after deployments.
*/
public readonly urn!: Output<URN>;
/**
* When set to true, ensures that this resource cannot be deleted.
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
private readonly __protect: boolean;
/**
* A collection of transformations to apply as part of resource
* registration.
*
* Note: This is marked optional only because older versions of this library
* may not have had this property, and marking it as optional forces
* consumers of the property to defensively handle cases where they are
* passed "old" resources.
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
__transformations?: ResourceTransformation[];
/**
* A list of aliases applied to this resource.
*
* Note: This is marked optional only because older versions of this library
* may not have had this property, and marking it as optional forces
* consumers of the property to defensively handle cases where they are
* passed "old" resources.
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
readonly __aliases?: Input<URN>[];
/**
* The name assigned to the resource at construction.
*
* Note: This is marked optional only because older versions of this library
* may not have had this property, and marking it as optional forces
* consumers of the property to defensively handle cases where they are
* passed "old" resources.
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
readonly __name?: string;
/**
* The set of providers to use for child resources. Keyed by package name
* (e.g. "aws").
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
private readonly __providers: Record<string, ProviderResource>;
/**
* The specified provider or provider determined from the parent for custom
* or remote resources. It is passed along in the `Call` gRPC request for
* resource method calls (when set) so that the call goes to the same
* provider as the resource.
*
* @internal
*/
// Note: This is deliberately not named `__provider` as that conflicts with the property
// used by the `dynamic.Resource` class.
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
readonly __prov?: ProviderResource;
/**
* The specified provider version.
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
readonly __version?: string;
/**
* The specified provider download URL.
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
readonly __pluginDownloadURL?: string;
/**
* A private field containing the type ID for this object. Useful for
* implementing `isInstance` on classes that inherit from `Resource`.
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
public readonly __pulumiType: string;
public static isInstance(obj: any): obj is Resource {
return utils.isInstance<Resource>(obj, "__pulumiResource");
}
/**
* Returns the source position of the user code that instantiated this
* resource.
*
* This is somewhat brittle in that it expects a call stack of the form:
*
* - {@link Resource} class constructor
* - abstract {@link Resource} subclass constructor
* - concrete {@link Resource} subclass constructor
* - user code
*
* This stack reflects the expected class hierarchy of:
*
* Resource > Custom/Component resource > Cloud/Component resource
*
* For example, consider the AWS S3 Bucket resource. When user code
* instantiates a Bucket, the stack will look like this:
*
* new Resource (/path/to/resource.ts:123:45)
* new CustomResource (/path/to/resource.ts:678:90)
* new Bucket (/path/to/bucket.ts:987:65)
* <user code> (/path/to/index.ts:4:3)
*
* Because Node can only give us the stack trace as text, we parse out the
* source position using a regex that matches traces of this form (see
* the {@link sourcePositionRegExp} above).
*/
private static sourcePosition(): SourcePosition | undefined {
const stackObj: any = {};
Error.captureStackTrace(stackObj, Resource.sourcePosition);
// Parse out the source position of the user code. If any part of the match is missing, return undefined.
const { file, line, col } = Resource.sourcePositionRegExp.exec(stackObj.stack)?.groups || {};
if (!file || !line || !col) {
return undefined;
}
// Parse the line and column numbers. If either fails to parse, return undefined.
//
// Note: this really shouldn't happen given the regex; this is just a bit of defensive coding.
const lineNum = parseInt(line, 10);
const colNum = parseInt(col, 10);
if (Number.isNaN(lineNum) || Number.isNaN(colNum)) {
return undefined;
}
return {
uri: url.pathToFileURL(file).toString(),
line: lineNum,
column: colNum,
};
}
/**
* Returns the provider for the given module member, if one exists.
*/
public getProvider(moduleMember: string): ProviderResource | undefined {
const pkg = pkgFromType(moduleMember);
if (pkg === undefined) {
return undefined;
}
return this.__providers[pkg];
}
/**
* Creates and registers a new resource object. `t` is the fully qualified
* type token and `name` is the "name" part to use in creating a stable and
* globally unique URN for the object. `dependsOn` is an optional list of
* other resources that this resource depends on, controlling the order in
* which we perform resource operations.
*
* @param t
* The type of the resource.
* @param name
* The _unique_ name of the resource.
* @param custom
* True to indicate that this is a custom resource, managed by a plugin.
* @param props
* The arguments to use to populate the new resource.
* @param opts
* A bag of options that control this resource's behavior.
* @param remote
* True if this is a remote component resource.
* @param dependency
* True if this is a synthetic resource used internally for dependency tracking.
*/
constructor(
t: string,
name: string,
custom: boolean,
props: Inputs = {},
opts: ResourceOptions = {},
remote: boolean = false,
dependency: boolean = false,
packageRef?: Promise<string | undefined>,
) {
this.__pulumiType = t;
if (dependency) {
this.__protect = false;
this.__providers = {};
return;
}
if (opts.parent && !Resource.isInstance(opts.parent)) {
throw new Error(`Resource parent is not a valid Resource: ${opts.parent}`);
}
if (!t) {
throw new ResourceError("Missing resource type argument", opts.parent);
}
if (!name) {
throw new ResourceError("Missing resource name argument (for URN creation)", opts.parent);
}
// Before anything else - if there are transformations registered, invoke them in order to transform the properties and
// options assigned to this resource.
const parent = opts.parent || getStackResource();
this.__transformations = [...(opts.transformations || []), ...(parent?.__transformations || [])];
for (const transformation of this.__transformations) {
const tres = transformation({ resource: this, type: t, name, props, opts });
if (tres) {
if (tres.opts.parent !== opts.parent) {
// This is currently not allowed because the parent tree is needed to establish what
// transformation to apply in the first place, and to compute inheritance of other
// resource options in the Resource constructor before transformations are run (so
// modifying it here would only even partially take affect). It's theoretically
// possible this restriction could be lifted in the future, but for now just
// disallow re-parenting resources in transformations to be safe.
throw new Error("Transformations cannot currently be used to change the `parent` of a resource.");
}
props = tres.props;
opts = tres.opts;
}
}
this.__name = name;
// Make a shallow clone of opts to ensure we don't modify the value passed in.
opts = Object.assign({}, opts);
// Check the parent type if one exists and fill in any default options.
this.__providers = {};
if (parent) {
this.__parentResource = parent;
this.__parentResource.__childResources = this.__parentResource.__childResources || new Set();
this.__parentResource.__childResources.add(this);
if (opts.protect === undefined) {
opts.protect = parent.__protect;
}
this.__providers = parent.__providers;
}
// providers is found by combining (in ascending order of priority)
// 1. provider
// 2. self_providers
// 3. opts.providers
this.__providers = {
...this.__providers,
...convertToProvidersMap((<ComponentResourceOptions>opts).providers),
...convertToProvidersMap(opts.provider ? [opts.provider] : {}),
};
const pkg = pkgFromType(t);
// provider is the first option that does not return none
// 1. opts.provider
// 2. a matching provider in opts.providers
// 3. a matching provider inherited from opts.parent
if ((custom || remote) && opts.provider === undefined) {
const parentProvider = parent?.getProvider(t);
if (pkg && pkg in this.__providers) {
opts.provider = this.__providers[pkg];
} else if (parentProvider) {
opts.provider = parentProvider;
}
}
// Custom and remote resources have a backing provider. If this is a custom or
// remote resource and a provider has been specified that has the same package
// as the resource's package, save it in `__prov`.
// If the provider's package isn't the same as the resource's package, don't
// save it in `__prov` because the user specified `provider: someProvider` as
// shorthand for `providers: [someProvider]`, which is a provider intended for
// the component's children and not for this resource itself.
// `__prov` is passed along in `Call` gRPC requests for resource method calls
// (when set) so that the call goes to the same provider as the resource.
if ((custom || remote) && opts.provider) {
if (pkg && pkg === opts.provider.getPackage()) {
this.__prov = opts.provider;
}
}
this.__protect = !!opts.protect;
this.__version = opts.version;
this.__pluginDownloadURL = opts.pluginDownloadURL;
// Collapse any `Alias`es down to URNs. We have to wait until this point to do so because we do not know the
// default `name` and `type` to apply until we are inside the resource constructor.
this.__aliases = [];
if (opts.aliases) {
for (const alias of opts.aliases) {
this.__aliases.push(collapseAliasToUrn(alias, name, t, parent));
}
}
const sourcePosition = Resource.sourcePosition();
if (opts.urn) {
// This is a resource that already exists. Read its state from the engine.
getResource(this, parent, props, custom, opts.urn);
} else if (opts.id) {
// If this is a custom resource that already exists, read its state from the provider.
if (!custom) {
throw new ResourceError(
"Cannot read an existing resource unless it has a custom provider",
opts.parent,
);
}
readResource(this, parent, t, name, props, opts, sourcePosition, packageRef);
} else {
// Kick off the resource registration. If we are actually performing a deployment, this
// resource's properties will be resolved asynchronously after the operation completes, so
// that dependent computations resolve normally. If we are just planning, on the other
// hand, values will never resolve.
registerResource(
this,
parent,
t,
name,
custom,
remote,
(urn) => new DependencyResource(urn),
props,
opts,
sourcePosition,
packageRef,
);
}
}
}
function convertToProvidersMap(providers: Record<string, ProviderResource> | ProviderResource[] | undefined) {
if (!providers) {
return {};
}
if (!Array.isArray(providers)) {
return providers;
}
const result: Record<string, ProviderResource> = {};
for (const provider of providers) {
result[provider.getPackage()] = provider;
}
return result;
}
(<any>Resource).doNotCapture = true;
/**
* A constant to represent the "root stack" resource for a Pulumi application.
* The purpose of this is solely to make it easy to write an {@link Alias} like
* so:
*
* `aliases: [{ parent: rootStackResource }]`.
*
* This indicates that the prior name for a resource was created based on it
* being parented directly by the stack itself and no other resources. Note:
* this is equivalent to:
*
* `aliases: [{ parent: undefined }]`
*
* However, the former form is preferable as it is more self-descriptive, while
* the latter may look a bit confusing and may incorrectly look like something
* that could be removed without changing semantics.
*/
export const rootStackResource: Resource = undefined!;
/**
* {@link Alias} is a partial description of prior names used for a resource. It
* can be processed in the context of a resource creation to determine what the
* full aliased URN would be.
*
* Note there is a semantic difference between properties being absent from this
* type and properties having the `undefined` value. Specifically, there is a
* difference between:
*
* ```ts
* { name: "foo", parent: undefined } // and
* { name: "foo" }
* ```
*
* The presence of a property indicates if its value should be used. If absent,
* then the value is not used. So, in the above while `alias.parent` is
* `undefined` for both, the first alias means "the original URN had no parent"
* while the second alias means "use the current parent".
*
* Note: to indicate that a resource was previously parented by the root stack,
* it is recommended that you use:
*
* `aliases: [{ parent: pulumi.rootStackResource }]`
*
* This form is self-descriptive and makes the intent clearer than using:
*
* `aliases: [{ parent: undefined }]`
*/
export interface Alias {
/**
* The previous name of the resource. If not provided, the current name of
* the resource is used.
*/
name?: Input<string>;
/**
* The previous type of the resource. If not provided, the current type of
* the resource is used.
*/
type?: Input<string>;
/**
* The previous parent of the resource. If not provided (i.e. `{ name: "foo"
* }`), the current parent of the resource is used (`opts.parent` if
* provided, else the implicit stack resource parent).
*
* To specify no original parent, use `{ parent: pulumi.rootStackResource }`.
*/
parent?: Resource | Input<URN>;
/**
* The previous stack of the resource. If not provided, defaults to
* `pulumi.getStack()`.
*/
stack?: Input<string>;
/**
* The previous project of the resource. If not provided, defaults to
* `pulumi.getProject()`.
*/
project?: Input<string>;
}
/**
* Converts an alias into a URN given a set of default data for the missing
* values.
*/
function collapseAliasToUrn(
alias: Input<Alias | string>,
defaultName: string,
defaultType: string,
defaultParent: Resource | undefined,
): Output<URN> {
return output(alias).apply((a) => {
if (typeof a === "string") {
return output(a);
}
const name = a.hasOwnProperty("name") ? a.name : defaultName;
const type = a.hasOwnProperty("type") ? a.type : defaultType;
const parent = a.hasOwnProperty("parent") ? a.parent : defaultParent;
const project = a.hasOwnProperty("project") ? a.project : getProject();
const stack = a.hasOwnProperty("stack") ? a.stack : getStack();
if (name === undefined) {
throw new Error("No valid 'name' passed in for alias.");
}
if (type === undefined) {
throw new Error("No valid 'type' passed in for alias.");
}
return createUrn(name, type, parent, project, stack);
});
}
/**
* {@link ResourceOptions} is a bag of optional settings that control a
* resource's behavior.
*/
export interface ResourceOptions {
// !!! IMPORTANT !!! If you add a new field to this type, make sure to add test that verifies that
// mergeOptions works properly for it. Also be sure to update the logic in callbacks.ts that marshals to
// and from this type to the wire protocol.
/**
* An optional existing ID to load, rather than create.
*/
id?: Input<ID>;
/**
* An optional parent resource to which this resource belongs.
*/
parent?: Resource;
/**
* An optional additional explicit dependencies on other resources.
*/
dependsOn?: Input<Input<Resource>[]> | Input<Resource>;
/**
* When set to true, protect ensures this resource cannot be deleted.
*/
protect?: boolean;
/**
* Ignore changes to any of the specified properties.
*/
ignoreChanges?: string[];
/**
* Changes to any of these property paths will force a replacement. If this list includes `"*"`, changes to any
* properties will force a replacement. Initialization errors from previous deployments will require replacement
* instead of update only if `"*"` is passed.
*/
replaceOnChanges?: string[];
/**
* An optional version, corresponding to the version of the provider plugin that should be used when operating on
* this resource. This version overrides the version information inferred from the current package and should
* rarely be used.
*/
version?: string;
/**
* An optional list of aliases to treat this resource as matching.
*/
aliases?: Input<URN | Alias>[];
/**
* An optional provider to use for this resource's CRUD operations. If no provider is supplied,
* the default provider for the resource's package will be used. The default provider is pulled
* from the parent's provider bag (see also ComponentResourceOptions.providers).
*
* If this is a [ComponentResourceOptions] do not provide both [provider] and [providers]
*/
provider?: ProviderResource;
/**
* An optional customTimeouts configuration block.
*/
customTimeouts?: CustomTimeouts;
/**
* Optional list of transformations to apply to this resource during construction. The
* transformations are applied in order, and are applied prior to transformation applied to
* parents walking from the resource up to the stack.
*/
transformations?: ResourceTransformation[];
/**
* Optional list of transforms to apply to this resource during construction. The
* transforms are applied in order, and are applied prior to transforms applied to
* parents walking from the resource up to the stack.
*
* This property is experimental.
*/
transforms?: ResourceTransform[];
/**
* The URN of a previously-registered resource of this type to read from the engine.
*/
urn?: URN;
/**
* An option to specify the URL from which to download this resources
* associated plugin. This version overrides the URL information inferred
* from the current package and should rarely be used.
*/
pluginDownloadURL?: string;
/**
* If set to True, the providers Delete method will not be called for this resource.
*/
retainOnDelete?: boolean;
/**
* If set, the providers Delete method will not be called for this resource
* if specified is being deleted as well.
*/
deletedWith?: Resource;
// !!! IMPORTANT !!! If you add a new field to this type, make sure to add test that verifies
// that mergeOptions works properly for it.
}
export interface CustomTimeouts {
/**
* The optional create timeout represented as a string e.g. 5m, 40s, 1d.
*/
create?: string;
/**
* The optional update timeout represented as a string e.g. 5m, 40s, 1d.
*/
update?: string;
/**
* The optional delete timeout represented as a string e.g. 5m, 40s, 1d.
*/
delete?: string;
}
/**
* {@link ResourceTransformation} is the callback signature for the
* `transformations` resource option. A transformation is passed the same set
* of inputs provided to the {@link Resource} constructor, and can optionally
* return back alternate values for the `props` and/or `opts` prior to the
* resource actually being created. The effect will be as though those props
* and opts were passed in place of the original call to the {@link Resource}
* constructor. If the transformation returns `undefined`, this indicates that
* the resource will not be transformed.
*/
export type ResourceTransformation = (args: ResourceTransformationArgs) => ResourceTransformationResult | undefined;
/**
* {@link ResourceTransform} is the callback signature for the `transforms`
* resource option. A transform is passed the same set of inputs provided to
* the {@link Resource} constructor, and can optionally return back alternate
* values for the `props` and/or `opts` prior to the resource actually being
* created. The effect will be as though those props and opts were passed in
* place of the original call to the {@link Resource} constructor. If the
* transform returns `undefined`, this indicates that the resource will not be
* transformed.
*/
export type ResourceTransform = (
args: ResourceTransformArgs,
) => Promise<ResourceTransformResult | undefined> | ResourceTransformResult | undefined;
/**
* {@link ResourceTransformArgs} is the argument bag passed to a resource transform.
*/
export interface ResourceTransformArgs {
/**
* True if the resource is a custom resource, false if it is a component resource.
*/
custom: boolean;
/**
* The type of the resource.
*/
type: string;
/**
* The name of the resource.
*/
name: string;
/**
* The original properties passed to the resource constructor.
*/
props: Inputs;
/**
* The original resource options passed to the resource constructor.
*/
opts: ResourceOptions;
}
/**
* {@link ResourceTransformResult} is the result that must be returned by a
* resource transform callback. It includes new values to use for the
* `props` and `opts` of the {@link Resource} in place of the originally
* provided values.
*/
export interface ResourceTransformResult {
/**
* The new properties to use in place of the original `props`
*/
props: Inputs;
/**
* The new resource options to use in place of the original `opts`
*/
opts: ResourceOptions;
}
/**
* {@link ResourceTransformationArgs} is the argument bag passed to a resource
* transformation.
*/
export interface ResourceTransformationArgs {
/**
* The {@link Resource} instance that is being transformed.
*/
resource: Resource;
/**
* The type of the resource.
*/
type: string;
/**
* The name of the resource.
*/
name: string;
/**
* The original properties passed to the resource constructor.
*/
props: Inputs;
/**
* The original resource options passed to the resource constructor.
*/
opts: ResourceOptions;
}
/**
* {@link ResourceTransformationResult} is the result that must be returned by a
* resource transformation callback. It includes new values to use for the
* `props` and `opts` of the {@link Resource} in place of the originally
* provided values.
*/
export interface ResourceTransformationResult {
/**
* The new properties to use in place of the original `props`
*/
props: Inputs;
/**
* The new resource options to use in place of the original `opts`
*/
opts: ResourceOptions;
}
/**
* {@link CustomResourceOptions} is a bag of optional settings that control a
* custom resource's behavior.
*/
export interface CustomResourceOptions extends ResourceOptions {
// !!! IMPORTANT !!! If you add a new field to this type, make sure to add test that verifies
// that mergeOptions works properly for it.
/**
* When set to true, indicates that this resource should be deleted before
* its replacement is created when replacement is necessary.
*/
deleteBeforeReplace?: boolean;
/**
* The names of outputs for this resource that should be treated as secrets.
* This augments the list that the resource provider and Pulumi engine
* already determine based on inputs to your resource. It can be used to
* mark certain ouputs as a secrets on a per resource basis.
*/
additionalSecretOutputs?: string[];
/**
* When provided with a resource ID, indicates that this resource's provider
* should import its state from the cloud resource with the given ID. The
* inputs to the resource's constructor must align with the resource's
* current state. Once a resource has been imported, the import property
* must be removed from the resource's options.
*/
import?: ID;
// !!! IMPORTANT !!! If you add a new field to this type, make sure to add test that verifies
// that mergeOptions works properly for it.
}
/**
* {@link ComponentResourceOptions} is a bag of optional settings that control a
* component resource's behavior.
*/
export interface ComponentResourceOptions extends ResourceOptions {
// !!! IMPORTANT !!! If you add a new field to this type, make sure to add test that verifies
// that mergeOptions works properly for it.
/**
* An optional set of providers to use for child resources. Either keyed by
* package name (e.g. "aws"), or just provided as an array. In the latter
* case, the package name will be retrieved from the provider itself.
*
* Note: only a list should be used. Mapping keys are not respected.
*/
providers?: Record<string, ProviderResource> | ProviderResource[];
// !!! IMPORTANT !!! If you add a new field to this type, make sure to add test that verifies
// that mergeOptions works properly for it.
}
/**
* {@link CustomResource} is a resource whose create, read, update, and delete
* (CRUD) operations are managed by performing external operations on some
* physical entity. The engine understands how to diff and perform partial
* updates of them, and these CRUD operations are implemented in a dynamically
* loaded plugin for the defining package.
*/
export abstract class CustomResource extends Resource {
/**
* A private field to help with RTTI that works in SxS scenarios.
* @internal
*
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
public readonly __pulumiCustomResource: boolean;
/**
* The provider-assigned unique ID for this managed resource. It is set
* during deployments and may be missing (undefined) during planning phases.
*/
public readonly id!: Output<ID>;
/**
* Returns true if the given object is a {@link CustomResource}. This is
* designed to work even when multiple copies of the Pulumi SDK have been
* loaded into the same process.
*/
public static isInstance(obj: any): obj is CustomResource {
return utils.isInstance<CustomResource>(obj, "__pulumiCustomResource");
}
/**
* Creates and registers a new managed resource. `t` is the fully qualified
* type token and `name` is the "name" part to use in creating a stable and
* globally unique URN for the object. `dependsOn` is an optional list of
* other resources that this resource depends on, controlling the order in
* which we perform resource operations. Creating an instance does not
* necessarily perform a create on the physical entity which it represents.
* Instead, this is dependent upon the diffing of the new goal state
* compared to the current known resource state.
*
* @param t
* The type of the resource.
* @param name
* The _unique_ name of the resource.
* @param props
* The arguments to use to populate the new resource.
* @param opts
* A bag of options that control this resource's behavior.
* @param dependency
* True if this is a synthetic resource used internally for dependency tracking.
*/
constructor(
t: string,
name: string,
props?: Inputs,
opts: CustomResourceOptions = {},
dependency = false,
packageRef?: Promise<string | undefined>,
) {
if ((<ComponentResourceOptions>opts).providers) {
throw new ResourceError(
"Do not supply 'providers' option to a CustomResource. Did you mean 'provider' instead?",
opts.parent,
);
}
super(t, name, true, props, opts, false, dependency, packageRef);
this.__pulumiCustomResource = true;
}
}
(<any>CustomResource).doNotCapture = true;
/**
* {@link ProviderResource} is a resource that implements CRUD operations for
* other custom resources. These resources are managed similarly to other
* resources, including the usual diffing and update semantics.
*/
export abstract class ProviderResource extends CustomResource {
/**
* @internal
*/
private readonly pkg: string;
/**
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
public __registrationId?: string;
public static async register(provider: ProviderResource | undefined): Promise<string | undefined> {
if (provider === undefined) {
return undefined;
}
if (!provider.__registrationId) {
const providerURN = await provider.urn.promise();
const providerID = (await provider.id.promise()) || unknownValue;
provider.__registrationId = `${providerURN}::${providerID}`;
}
return provider.__registrationId;
}
/**
* Creates and registers a new provider resource for a particular package.
*
* @param pkg
* The package associated with this provider.
* @param name
* The _unique_ name of the provider.
* @param props
* The configuration to use for this provider.
* @param opts
* A bag of options that control this provider's behavior.
* @param dependency
* True if this is a synthetic resource used internally for dependency tracking.
*/
constructor(
pkg: string,
name: string,
props?: Inputs,
opts: ResourceOptions = {},
dependency: boolean = false,
packageRef?: Promise<string | undefined>,
) {
super(`pulumi:providers:${pkg}`, name, props, opts, dependency, packageRef);
this.pkg = pkg;
}
/**
* @internal
*/
public getPackage() {
return this.pkg;
}
}
/**
* {@link ComponentResource} is a resource that aggregates one or more other
* child resources into a higher level abstraction. The component resource
* itself is a resource, but does not require custom CRUD operations for
* provisioning.
*/
export class ComponentResource<TData = any> extends Resource {
/**
* A private field to help with RTTI that works in SxS scenarios.
*
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
public readonly __pulumiComponentResource = true;
/**
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
public readonly __data: Promise<TData>;
/**
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
private __registered = false;
/**
* @internal
*/
// eslint-disable-next-line @typescript-eslint/naming-convention,no-underscore-dangle,id-blacklist,id-match
public readonly __remote: boolean;
/**
* Returns true if the given object is a {@link CustomResource}. This is
* designed to work even when multiple copies of the Pulumi SDK have been
* loaded into the same process.
*/
public static isInstance(obj: any): obj is ComponentResource {
return utils.isInstance<ComponentResource>(obj, "__pulumiComponentResource");
}
/**
* Creates and registers a new component resource. `type` is the fully
* qualified type token and `name` is the "name" part to use in creating a
* stable and globally unique URN for the object. `opts.parent` is the
* optional parent for this component, and `opts.dependsOn` is an optional
* list of other resources that this resource depends on, controlling the
* order in which we perform resource operations.
*
* @param type
* The type of the resource.
* @param name
* The _unique_ name of the resource.
* @param args
* Information passed to [initialize] method.
* @param opts
* A bag of options that control this resource's behavior.
* @param remote
* True if this is a remote component resource.
*/
constructor(
type: string,
name: string,
args: Inputs = {},
opts: ComponentResourceOptions = {},
remote: boolean = false,
packageRef?: Promise<string | undefined>,
) {
// Explicitly ignore the props passed in. We allow them for back compat reasons. However,
// we explicitly do not want to pass them along to the engine. The ComponentResource acts
// only as a container for other resources. Another way to think about this is that a normal
// 'custom resource' corresponds to real piece of cloud infrastructure. So, when it changes
// in some way, the cloud resource needs to be updated (and vice versa). That is not true
// for a component resource. The component is just used for organizational purposes and does
// not correspond to a real piece of cloud infrastructure. As such, changes to it *itself*
// do not have any effect on the cloud side of things at all.
super(
type,
name,
/*custom:*/ false,
/*props:*/ remote || opts?.urn ? args : {},
opts,
remote,
false,
packageRef,
);
this.__remote = remote;
this.__registered = remote || !!opts?.urn;
this.__data = remote || opts?.urn ? Promise.resolve(<TData>{}) : this.initializeAndRegisterOutputs(args);
}
/**
* @internal
*/
private async initializeAndRegisterOutputs(args: Inputs) {
const data = await this.initialize(args);
this.registerOutputs();
return data;
}
/**
* Can be overridden by a subclass to asynchronously initialize data for this component
* automatically when constructed. The data will be available immediately for subclass
* constructors to use. To access the data use {@link getData}.
*/
protected async initialize(args: Inputs): Promise<TData> {
return <TData>undefined!;
}
/**
* Retrieves the data produces by {@link initialize}. The data is
* immediately available in a derived class's constructor after the
* `super(...)` call to `ComponentResource`.
*/
protected getData(): Promise<TData> {
return this.__data;
}
/**
* Registers synthetic outputs that a component has initialized, usually by
* allocating other child sub-resources and propagating their resulting
* property values.
*
* Component resources can call this at the end of their constructor to
* indicate that they are done creating child resources. This is not
* strictly necessary as this will automatically be called after the {@link
* initialize} method completes.
*/
protected registerOutputs(outputs?: Inputs | Promise<Inputs> | Output<Inputs>): void {
if (this.__registered) {
return;
}
this.__registered = true;
registerResourceOutputs(this, outputs || {});
}
}
(<any>ComponentResource).doNotCapture = true;
(<any>ComponentResource.prototype).registerOutputs.doNotCapture = true;
(<any>ComponentResource.prototype).initialize.doNotCapture = true;
(<any>ComponentResource.prototype).initializeAndRegisterOutputs.doNotCapture = true;
/**
* @internal
*/
export const testingOptions = {
isDryRun: false,
};
/**
* {@link mergeOptions} takes two {@link ResourceOptions} values and produces a new
* {@link ResourceOptions} with the respective properties of `opts2` merged over the
* same properties in `opts1`. The original options objects will be unchanged.
*
* Conceptually property merging follows these basic rules:
*
* 1. if the property is a collection, the final value will be a collection
* containing the values from each options object.
*
* 2. Simple scaler values from `opts2` (i.e. strings, numbers, bools) will
* replace the values of `opts1`.
*
* 3. `opts2` can have properties explicitly provided with `null` or
* `undefined` as the value. If explicitly provided, then that will be the
* final value in the result.
*
* 4. For the purposes of merging `dependsOn`, `provider` and `providers` are
* always treated as collections, even if only a single value was provided.
*/
export function mergeOptions(
opts1: CustomResourceOptions | undefined,
opts2: CustomResourceOptions | undefined,
): CustomResourceOptions;
export function mergeOptions(
opts1: ComponentResourceOptions | undefined,
opts2: ComponentResourceOptions | undefined,
): ComponentResourceOptions;
export function mergeOptions(opts1: ResourceOptions | undefined, opts2: ResourceOptions | undefined): ResourceOptions;
export function mergeOptions(opts1: ResourceOptions | undefined, opts2: ResourceOptions | undefined): ResourceOptions {
const dest = <any>{ ...opts1 };
const source = <any>{ ...opts2 };
// Ensure provider/providers are all expanded into the `ProviderResource[]` form.
// This makes merging simple.
expandProviders(dest);
expandProviders(source);
// iterate specifically over the supplied properties in [source]. Note: there may not be an
// corresponding value in [dest].
for (const key of Object.keys(source)) {
const destVal = dest[key];
const sourceVal = source[key];
// For 'dependsOn' we might have singleton resources in both options bags. We
// want to make sure we combine them into a collection.
if (key === "dependsOn") {
dest[key] = merge(destVal, sourceVal, /*alwaysCreateArray:*/ true);
continue;
}
dest[key] = merge(destVal, sourceVal, /*alwaysCreateArray:*/ false);
}
// Now, if we are left with a .providers that is just a single key/value pair, then
// collapse that down into .provider form.
normalizeProviders(dest);
return dest;
}
function isPromiseOrOutput(val: any): boolean {
return val instanceof Promise || Output.isInstance(val);
}
/**
* @internal
*/
export function expandProviders(options: ComponentResourceOptions) {
// Convert 'providers' map to array form.
if (options.providers && !Array.isArray(options.providers)) {
for (const k in options.providers) {
if (Object.prototype.hasOwnProperty.call(options.providers, k)) {
const v = options.providers[k];
if (k !== v.getPackage()) {
const message = `provider resource map where key ${k} doesn't match provider ${v.getPackage()}`;
log.warn(message);
}
}
}
options.providers = utils.values(options.providers);
}
}
function normalizeProviders(opts: ComponentResourceOptions) {
// If we have 0 providers, delete providers. Otherwise, convert providers into a map.
const providers = <ProviderResource[]>opts.providers;
if (providers) {
if (providers.length === 0) {
opts.providers = undefined;
} else {
opts.providers = {};
for (const res of providers) {
opts.providers[res.getPackage()] = res;
}
}
}
}
/**
* @internal
* This is exported for testing purposes.
*/
export function merge(dest: any, source: any, alwaysCreateArray: boolean): any {
// unwind any top level promise/outputs.
if (isPromiseOrOutput(dest)) {
return output(dest).apply((d) => merge(d, source, alwaysCreateArray));
}
if (isPromiseOrOutput(source)) {
return output(source).apply((s) => merge(dest, s, alwaysCreateArray));
}
// If either are an array, make a new array and merge the values into it.
// Otherwise, just overwrite the destination with the source value.
if (alwaysCreateArray || Array.isArray(dest) || Array.isArray(source)) {
const result: any[] = [];
addToArray(result, dest);
addToArray(result, source);
return result;
}
return source;
}
function addToArray(resultArray: any[], value: any) {
if (Array.isArray(value)) {
resultArray.push(...value);
} else if (value !== undefined && value !== null) {
resultArray.push(value);
}
}
/**
* A {@link DependencyResource} is a resource that is used to indicate that an
* {@link Output} has a dependency on a particular resource. These resources are
* only created when dealing with remote component resources.
*/
export class DependencyResource extends CustomResource {
constructor(urn: URN) {
super("", "", {}, {}, true);
(<any>this).urn = new Output(
<any>this,
Promise.resolve(urn),
Promise.resolve(true),
Promise.resolve(false),
Promise.resolve([]),
);
}
}
/**
* A {@link DependencyProviderResource} is a resource that is used by the
* provider SDK as a stand-in for a provider that is only used for its
* reference. Its only valid properties are its URN and ID.
*/
export class DependencyProviderResource extends ProviderResource {
constructor(ref: string) {
const [urn, id] = parseResourceReference(ref);
const urnParts = urn.split("::");
const qualifiedType = urnParts[2];
const type = qualifiedType.split("$").pop()!;
// type will be "pulumi:providers:<package>" and we want the last part.
const typeParts = type.split(":");
const pkg = typeParts.length > 2 ? typeParts[2] : "";
super(pkg, "", {}, {}, true);
(<any>this).urn = new Output(
<any>this,
Promise.resolve(urn),
Promise.resolve(true),
Promise.resolve(false),
Promise.resolve([]),
);
(<any>this).id = new Output(
<any>this,
Promise.resolve(id),
Promise.resolve(true),
Promise.resolve(false),
Promise.resolve([]),
);
}
}
/**
* Parses the URN and ID out of the provider reference.
*
* @internal
*/
export function parseResourceReference(ref: string): [string, string] {
const lastSep = ref.lastIndexOf("::");
if (lastSep === -1) {
throw new Error(`expected '::' in provider reference ${ref}`);
}
const urn = ref.slice(0, lastSep);
const id = ref.slice(lastSep + 2);
return [urn, id];
}
/**
* Extracts the package from the type token of the form "pkg:module:member".
*
* @internal
*/
export function pkgFromType(type: string): string | undefined {
const parts = type.split(":");
if (parts.length === 3) {
return parts[0];
}
return undefined;
}