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# Description
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Please also include relevant motivation and context. -->
This is two changes rolled together in a way.
Firstly passing some of the data that we pass on language runtime
startup to also pass it to Run/GetRequiredPlugins/etc. This is needed
for matrix testing, as we only get to start the language runtime up once
for that but want to execute multiple programs with it.
I feel it's also a little more consistent as we use the language
runtimes in other contexts (codegen) where there isn't really a root
directory, and aren't any options (and if we did do options the options
for codegen are not going to be the same as for execution). It also
means we can reuse a language host for shimless and substack programs,
as before they heavily relied on their current working directory to
calculate paths, and obviosly could only take one set of options at
startup. Imagine a shimless python package + a python root program, that
would have needed two startups of the python language host to deal with,
this unblocks it so we can make the engine smarter and only use one.
Secondly renaming some of the fields we pass to
Run/GetRequiredPlugins/etc today. `Pwd` and `Program` were not very
descriptive and had pretty non-obvious documentation:
```
string pwd = 3; // the program's working directory.
string program = 4; // the path to the program to execute.
```
`pwd` will remain, although probably rename it to `working_directory` at
some point, because while today we always start programs up with the
working directory equal to the program directory that definitely is
going to change in the future (at least for MLCs and substack programs).
But the name `pwd` doesn't make it clear that this was intended to be
the working directory _and_ the directory which contains the program.
`program` was in fact nearly always ".", and if it wasn't that it was
just a filename. The engine never sent a path for `program` (although we
did have some unit tests to check how that worked for the nodejs and
python hosts).
These are now replaced by a new structure with (I think) more clearly
named and documented fields (see ProgramInfo in langauge.proto).
The engine still sends the old data for now, we need to update
dotnet/yaml/java before we break the old interface and give Virtus Labs
a chance to update [besom](https://github.com/VirtusLab/besom).
## Checklist
- [x] I have run `make tidy` to update any new dependencies
- [x] I have run `make lint` to verify my code passes the lint check
- [ ] I have formatted my code using `gofumpt`
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- [x] I have added tests that prove my fix is effective or that my
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- [ ] I have run `make changelog` and committed the
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We used to test that various errors we're written out to the user in
these langhost tests, but at some point those test were removed (I
suspect because we stopped printing them to stderr).
This adds in the ability to check for a log message in the engine
diagnostics stream, and makes use of that in one of the tests.
Add support to the core SDKs for reporting resource source positions.
In each SDK, this is implemented by crawling the stack when a resource
is registered in order to determine the position of the user code that
registered the resource.
This is somewhat brittle in that it expects a call stack of the form:
- Resource class constructor
- abstract Resource subclass constructor
- concrete Resource subclass constructor
- user code
This stack reflects the expected class hierarchy of "cloud resource /
component resource < customresource/componentresource < resource".
For example, consider the AWS S3 Bucket resource. When user code
instantiates a Bucket, the stack will look like
this in NodeJS:
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)
In order to determine the source position, we locate the fourth frame
(the `<user code>` frame).
This PR combines the Program failed with an unhandled exception: and traceback error messages and puts them into a single log message as well as omits the existing an unhandled error occurred message.
Adds a new resource option to force replacement when certain properties report changes, even if the resource provider itself does not require a replacement.
Fixes#6753.
Co-authored-by: Levi Blackstone <levi@pulumi.com>
A resource can be imported by setting the `import` property in the
resource options bag when instantiating a resource. In order to
successfully import a resource, its desired configuration (i.e. its
inputs) must not differ from its actual configuration (i.e. its state)
as calculated by the resource's provider.
There are a few interesting state transitions hiding here when importing
a resource:
1. No prior resource exists in the checkpoint file. In this case, the
resource is simply imported.
2. An external resource exists in the checkpoint file. In this case, the
resource is imported and the old external state is discarded.
3. A non-external resource exists in the checkpoint file and its ID is
different from the ID to import. In this case, the new resource is
imported and the old resource is deleted.
4. A non-external resource exists in the checkpoint file, but the ID is
the same as the ID to import. In this case, the import ID is ignored
and the resource is treated as it would be in all cases except for
changes that would replace the resource. In that case, the step
generator issues an error that indicates that the import ID should be
removed: were we to move forward with the replace, the new state of
the stack would fall under case (3), which is almost certainly not
what the user intends.
Fixes#1662.
This commit implements read_resource functionality for Python in a
manner identical to the NodeJS implementation. If an "id" option is
passed to a resource via ResourceOptions on construction, that resource
will be read and not created.
* NodeJS: allow callers to override provider version
* Python: allow callers to override provider version
* NodeJS: add version for invoke
* Python: add version to invoke
* NodeJS: add tests for ReadResource
* Post-merge cleanup
* update doc comments
Fixes#2277.
Adds a new ignoreChanges resource option that allows specifying a list of property names whose values will be ignored during updates. The property values will be used for Create, but will be ignored for purposes of updates, and as a result also cannot trigger replacements.
This is a feature of the Pulumi engine, not of the resource providers, so no new logic is needed in providers to support this feature. Instead, the engine simply replaces the values of input properties in the goal state with old inputs for properties marked as ignoreChanges.
Currently, only top level properties may be specified in ignoreChanges. In the future, this could be extended to support paths to nested properties (including into array elements) with a JSONPath/JMESPath syntax.
These changes add a new flag to the various `ResourceOptions` types that
indicates that a resource should be deleted before it is replaced, even
if the provider does not require this behavior. The usual
delete-before-replace cascade semantics apply.
Fixes#1620.
This implements the new algorithm for deciding which resources must be
deleted due to a delete-before-replace operation.
We need to compute the set of resources that may be replaced by a
change to the resource under consideration. We do this by taking the
complete set of transitive dependents on the resource under
consideration and removing any resources that would not be replaced by
changes to their dependencies. We determine whether or not a resource
may be replaced by substituting unknowns for input properties that may
change due to deletion of the resources their value depends on and
calling the resource provider's Diff method.
This is perhaps clearer when described by example. Consider the
following dependency graph:
A
__|__
B C
| _|_
D E F
In this graph, all of B, C, D, E, and F transitively depend on A. It may
be the case, however, that changes to the specific properties of any of
those resources R that would occur if a resource on the path to A were
deleted and recreated may not cause R to be replaced. For example, the
edge from B to A may be a simple dependsOn edge such that a change to
B does not actually influence any of B's input properties. In that case,
neither B nor D would need to be deleted before A could be deleted.
In order to make the above algorithm a reality, the resource monitor
interface has been updated to include a map that associates an input
property key with the list of resources that input property depends on.
Older clients of the resource monitor will leave this map empty, in
which case all input properties will be treated as depending on all
dependencies of the resource. This is probably overly conservative, but
it is less conservative than what we currently implement, and is
certainly correct.
Invoke in Node.js allows users to optionally pass a parent or a provider
to the invoke, which dictates either explicitly or implicitly which
provider to use when performing an invoke. If a provider is specified
explicitly, that provider is used to perform the invoke. If a parent is
specified, that parent's provider is used to perform the invoke.
* Implement first-class providers for Python
First-class providers are an explicit projection of providers themselves
into Pulumi programs. For the most post, providers are just regular
resources, but the addition of providers to the fray (and the ability of
resources to be constructed by providers in the same program) requires
some changes to the Python resource model.
A summary of the changes:
1. Added ProviderResource, a custom resource that is the base class of
all providers.
2. ResourceOptions now has 'provider' and 'providers' fields.
'provider', when passed to a custom resource, allows users to override
the provider that is used to construct a resource to an instance of a
ProviderResource. 'providers', when passed to a component resource,
allows users to override providers used to construct children of the
component resource.
3. 'protect', 'providers', and 'provider' are all now inherited from
a resource's parent if they aren't specified in the child.
This commit adds the requisite code for the above changes and, in
addition, adds a number of new tests that exercise them and related code
paths.
* Rebase against master
* Fix, formalize and add tests for property rewrites
The Python SDK provides two hooks for resources to override how their
properties are communicated to and from the engine. The code that
performs this transformation is subtle and, before this commit, subtly
incorrect.
This commit adds a test that verifies that the SDK correctly transforms
properties recursively according to the two transformation hooks, while
also fixing a smattering of test issues encountered when adding the new
test.
* CR feedback
future_input tests that it's possible to use coroutines as inputs to
Pulumi resources. resource_thens tests that it's possible to use outputs
to chain resource inputs and outputs together and that the SDK reports
correct dependencies to the engine.
This PR also fixes two bugs exposed by the new tests: first, coroutines
needed to be scheduled before awaiting (otherwise we'd deadlock) and
Nones in maps needed to be ignored when serializing and deserializing.
* Implement RPC for Python 3
* Try not setting PYTHONPATH
* Remove PYTHONPATH line
* Implement Invoke for Python 3
* Implement register resource
* progress
* Rewrite the whole thing
* Fix a few bugs
* All tests pass
* Fix an abnormal shutdown bug
* CR feedback
* Provide a hook for resources to rename properties
As dictionaries and other classes come from the engine, the
translate_property hook can be used to intercept them and rename
properties if desired.
* Fix variable names and comments
* Disable Python integration tests for now
This commit introduces a 'next' package which we can use as a staging
ground for incrementally adopting new Python 3 code. The next package is
initially populated with the non-runtime portions of the Python SDK,
which is enough to pass all tests when running on Python 3. Future
commits will reach further into the runtime.
* Test the Python language host end-to-end
This commit introduces an end-to-end language host testing framework for
the Python SDK, similar to what already exists for the Node SDK. The
real language host is used to run Pulumi programs written in Python
while mocking out the resource monitor.
* Add new tests
* Print out better diagnostics when the langhost fails to launch
* Use the in-tree executor for testing
* CR: Place tests and code being tested in the same directory for ease of understanding, add a README
* Turns out I misunderstood the semantics of resource registration - fix two tests so that they pass now and fix a few bugs in the test harness