Pulumi

Improvements

- In the nodejs SDK, `pulumi.interpolate` and `pulumi.concat` have been added as convenient ways to combine Output values into strings.

- Added `pulumi history` to show information about the history of updates to a stack.

- When creating a project with `pulumi new` the generated `Pulumi.yaml` file no longer contains the template section, which was unused after creating a project

- In the Python SDK, the `is_dry_run` function just always returned `true`, even when an update (and not a preview) was being preformed. This has been fixed.

- Python programs will no longer deadlock due to exceptions in functions run during applies.

Improvements

- Support for first-class providers in Python.

- Fix a bug where `StackReference` outputs were not updated when changes occured in the referenced stack.

- Added `pulumi stack tag` commands for managing stack tags stored in the cloud backend.

- Link directly to /account/tokens when prompting for an access token.

- Exporting a Resource from an application Stack now exports it as a rich recursive pojo instead of just being an opaque URN (fixes https://github.com/pulumi/pulumi/issues/1858).

Improvements

- Update the error message when When `pulumi` commands fail to detect your project to mention that `pulumi new` can be used to create a new project (fixes [pulumi/pulumi2234](https://github.com/pulumi/pulumi/issues/2234))

- Added a `--stack` argument (short form `-s`) to `pulumi stack`, `pulumi stack init`, `pulumi state delete` and `pulumi state unprotect` to allow operating on a different stack than the currently selected stack. This brings these commands in line with the other commands that operate on stacks and already provided a `--stack` option (fixes [pulumi/pulumi1648](https://github.com/pulumi/pulumi/issues/1648))

- Added `Output.all` and `Output.from_input` to the Python SDK.

- During previews and updates, read operations (i.e. calls to `.get` methods) are no longer shown in the output unless they cause any changes.

- Fix a performance regression where `pulumi preview` and `pulumi up` would hang for a few moments at the end of a preview or update, in addition to the overall operation being slower.

Improvements

- Fix an issue that caused panics due to shutting the Jaeger tracing infrastructure down before all traces had finished ([pulumi/pulumi1850](https://github.com/pulumi/pulumi/issues/1850))

Improvements

- Configuration and stack commands now take a `--config-file` options. This option allows the user to override the file used to fetch and store config information for a stack during the execution of a command.

- Fix an issue where ANSI escape codes would appear in messages printed from the CLI when running on Windows.

- Fix an error about a bad icotl when trying to read sensitive input from the console and standard in was not connected to a terminal.

- The dynamic provider would fail to launch if your `node_modules` folder was non in the default location or had a non standard layout. This has been fixed so we correctly find your `node_modules` folder in the same way node does. (fixes [pulumi/pulumi2261](https://github.com/pulumi/pulumi/issues/2261))

Major Changes

- When running a Python program, pulumi will now run `python3` instead of `python`, since `python` often points at Python 2.7 binary, and Pulumi requires Python 3.6 or later. The environment variable `PULUMI_PYTHON_CMD` can be used to provide a different binary to run.

Improvements

- Allow `Output`s in the dependsOn property of `ResourceOptions` (fixes [pulumi/pulumi991](https://github.com/pulumi/pulumi/issues/991))

- Add a new `StackReference` type to the node SDK which allows referencing an output of another stack (fixes [pulumi/pulumi109](https://github.com/pulumi/pulumi/issues/109))

- Fix an issue where `pulumi` would not respect common `NO_PROXY` settings (fixes [pulumi/pulumi2134](https://github.com/pulumi/pulumi/issues/2134))

- The CLI wil now correctly report any output from a Python program which writes to `sys.stderr` (fixes [pulumi/pulumi1542](https://github.com/pulumi/pulumi/issues/1542))

- Don't install packages by default for Python projects when creating a new project from a template using `pulumi new`. Previously, `pulumi` would install these packages using `pip install` and they would be installed globally when `pulumi` was run outside a virtualenv.

- Fix an issue where `pulumi` could panic during a peview when using a first class provider which was constructed using an output property of another resource (fixes [pulumi/pulumi2223](https://github.com/pulumi/pulumi/issues/2223))

- Fix an issue where `pulumi` would fail to load resource plugins for newer dev builds.

- Fix an issue where running two copies of `pulumi plugin install` in parallel for the same plugin version could cause one to fail with an error about renaming a directory.

- Fix an issue where if the directory containing the `pulumi` executable was not on the `$PATH` we would fail to load language plugins. We now will also search next to the current running copy of Pulumi (fixes [pulumi/pulumi1956](https://github.com/pulumi/pulumi/issues/1956))

- Fix an issue where passing a key of the form `foo:config:bar:baz` to `pulumi config set` would succeed but cause errors later when trying to interact with the stack. Setting this value is now blocked eagerly (fixes [pulumi/pulumi2171](https://github.com/pulumi/pulumi/issues/2171))