pulumi

Improvements

• Slight tweak to Output.apply signature to help TypeScript infer types better.

This update includes several changes to core @pulumi/pulumi constructs that will not play nicely in side-by-side applications that pull in prior versions of this package. As such, we are rev'ing the minor version of the package from 0.16 to 0.17. Recent version of pulumi will now detect, and warn, if different versions of @pulumi/pulumi are loaded into the same application. If you encounter this warning, it is recommended you move to versions of the @pulumi/... packages that are compatible. i.e. keep everything on 0.16.x until you are ready to move everything to 0.17.x.

Improvements

• Output<T> now 'lifts' property members from the value it wraps, simplifying common coding patterns. For example:

interface Widget { text: string, x: number, y: number };
var v: Output<Widget>;

var widgetX = v.x;
// `widgetX` has the type Output<number>.
// This is equivalent to writing `v.apply(w => w.x)`

Note: this 'lifting' only occurs for POJO values. It does not happen for Output<Resource>s. Similarly, this only happens for properties. Functions are not lifted.

• Depending on a Component Resource will now depend on all other Resources parented by that Resource. This will help out the programming model for Component Resources as your consumers can just depend on a Component and have that automatically depend on all the child Resources created by that Component. Note: this does not apply to a Custom resource. Depending on a CustomResource will still only wait on that single resource being created, not any other Resources that consider that CustomResource to be a parent.

• Rolled back change where calling toString/toJSON on an Output would cause a message to be logged to the pulumi diagnostics stream.

• Fix an issue where the Pulumi CLI would load the newest plugin for a resource provider instead of the version that was requested, which could result in the Pulumi CLI loading a resource provider plugin that is incompatible with the program. This has the potential to disrupt users that previously had working configurations; if you are experiencing problems after upgrading to 0.16.17, you can opt-in to the legacy plugin load behavior by setting the environnment variable PULUMI_ENABLE_LEGACY_PLUGIN_SEARCH=1. You can also install plugins that are missing with the command pulumi plugin install resource <name> <version> --exact.

Improvements

• Attempting to convert an [Output<T>] to a string or to JSON will now result in a warning message being printed, as well as information on how to rectify the situation. This is to help with diagnosing cryptic problems that can occur when Outputs are accidentally concatenated into a string in some part of the program.

• Fixes incorrect closure serialization issue (https://github.com/pulumi/pulumi/pull/2497)

• pulumi will now check that all versions of @pulumi/pulumi are compatible in your node_modules folder, and will issue a warning message if not. To be compatible, the versions of @pulumi/pulumi must agree on their major and minor versions. Running incompatible versions is not something that will be blocked, but it is discouraged as it may lead to subtle problems if one version of @pulumi/pulumi is loaded and passes objects to/from an incompatible version.

Improvements

• Rolling back the change: "Depending on a Resource will now depend on all other Resource's parented by that Resource."

  Unforeseen problems cropped up that caused deadlocks. Removing this change until we can have a high quality solution without these issues.