Codepaths which could result in a hang will print a message to the console indicating the problem, along with a link to documentation on how to restructure code to best address it.
`StackReference.getOutputSync` and `requireOutputSync` have been deprecated as they may cause hangs on some combinations of Node and certain OS platforms. `StackReference.getOutput` and `requireOutput` should be used instead.
- If an untargeted create would not affect the inputs of any targeted
resources, do not fail the update. Untargeted creates that are
directly dependend on by targeted resources will still cause failures
that inform the user to add the untargeted resources to the --target
list.
- Users may now pass the `--target-dependents` flag to allow targeted
destroys to automatically target dependents that must be destroyed in
order to destroy an explicitly targeted resource.
These changes restore a more-correct version of the behavior that was
disabled with #3014. The original implementation of this behavior was
done in the SDKs, which do not have access to the complete inputs for a
resource (in particular, default values filled in by the provider during
`Check` are not exposed to the SDK). This lack of information meant that
the resolved output values could disagree with the typings present in
a provider SDK. Exacerbating this problem was the fact that unknown
values were dropped entirely, causing `undefined` values to appear in
unexpected places.
By doing this in the engine and allowing unknown values to be
represented in a first-class manner in the SDK, we can attack both of
these issues.
Although this behavior is not _strictly_ consistent with respect to the
resource model--in an update, a resource's output properties will come
from its provider and may differ from its input properties--this
behavior was present in the product for a fairly long time without
significant issues. In the future, we may be able to improve the
accuracy of resource outputs during a preview by allowing the provider
to dry-run CRUD operations and return partially-known values where
possible.
These changes also introduce new APIs in the Node and Python SDKs
that work with unknown values in a first-class fashion:
- A new parameter to the `apply` function that indicates that the
callback should be run even if the result of the apply contains
unknown values
- `containsUnknowns` and `isUnknown`, which return true if a value
either contains nested unknown values or is exactly an unknown value
- The `Unknown` type, which represents unknown values
The primary use case for these APIs is to allow nested, properties with
known values to be accessed via the lifted property accessor even when
the containing property is not fully know. A common example of this
pattern is the `metadata.name` property of a Kubernetes `Namespace`
object: while other properties of the `metadata` bag may be unknown,
`name` is often known. These APIs allow `ns.metadata.name` to return a
known value in this case.
In order to avoid exposing downlevel SDKs to unknown values--a change
which could break user code by exposing it to unexpected values--a
language SDK must indicate whether or not it supports first-class
unknown values as part of each `RegisterResourceRequest`.
These changes also allow us to avoid breaking user code with the new
behavior introduced by the prior commit.
Fixes#3190.
Allow the user to specify a set of resources to replace via the
`--replace` flag on the CLI. This can be combined with `--target` to
replace a specific set of resources without changing any other
resources. `--target-replace` is shorthand for `--replace urn --target urn`.
Fixes#2643.
This commit will introduce the ability to load providers in `query`
mode.
Previously, `query` mode has been effectively a stand-alone execution
environment for language hosts, running without (e.g.) the
`StepExecutor` and similar engine facilities, but with some minimal
constructs hooked up, notably the ability to retrieve stack snapshots
from the backend for querying.
This commit extends this functionality somewhat by allowing `query` to
load Pulumi resource providers, and to run `Invoke` on them. This will
allow us, in the future, to "query" resource providers in the same way
we can query stack snapshots.
This method can be used to check whether or not a URN is well-formed.
This is used by the provider reference parser to avoid panicking on
malformed URNs.
The dependency graph used to determine the set of resources that
depend on a resource being DBR'd is constructured from the list of
resource states present in the old snapshot. However, the dependencies
of resources that are present in both the old snapshot and the current
plan can be different, which in turn can cause the engine to make
incorrect decisions during DBR with respect to which resources need to
be replaced. For example, consider the following program:
```
var resA = new Resource("a", {dbr: "foo"});
var resB = new Resource("b", {dbr: resA.prop});
```
If this program is then changed to:
```
var resB = new Resource("b", {dbr: "<literal value of resA.prop>"});
var resA = new Resource("a", {dbr: "bar"});
```
The engine will first decide to make no changes to "b", as its input
property values have not changed. "b" has changed, however, such that it
no longer has a dependency on "a".
The engine will then decide to DBR "a". In the process, it will
determine that it first needs to delete "b", because the state for "b"
that is used when calculating "a"'s dependents does not reflect the
changes made during the plan.
To fix this issue, we rely on the observation that dependents can only
have been _removed_ from the base dependency graph: for a dependent to
have been added, it would have had to have been registered prior to the
root--a resource it depends on--which is not a valid operation. This
means that any resources that depend on the root must not yet have
been registered, which in turn implies that resources that have already
been registered must not depend on the root. Thus, we ignore these
resources if they are encountered while walking the old dependency graph
to determine the set of dependents.
These changes restore a more-correct version of the behavior that was
disabled with #3014. The original implementation of this behavior was
done in the SDKs, which do not have access to the complete inputs for a
resource (in particular, default values filled in by the provider during
`Check` are not exposed to the SDK). This lack of information meant that
the resolved output values could disagree with the typings present in
a provider SDK. Exacerbating this problem was the fact that unknown
values were dropped entirely, causing `undefined` values to appear in
unexpected places.
By doing this in the engine and allowing unknown values to be
represented in a first-class manner in the SDK, we can attack both of
these issues.
Although this behavior is not _strictly_ consistent with respect to the
resource model--in an update, a resource's output properties will come
from its provider and may differ from its input properties--this
behavior was present in the product for a fairly long time without
significant issues. In the future, we may be able to improve the
accuracy of resource outputs during a preview by allowing the provider
to dry-run CRUD operations and return partially-known values where
possible.
These changes also introduce new APIs in the Node and Python SDKs
that work with unknown values in a first-class fashion:
- A new parameter to the `apply` function that indicates that the
callback should be run even if the result of the apply contains
unknown values
- `containsUnknowns` and `isUnknown`, which return true if a value
either contains nested unknown values or is exactly an unknown value
- The `Unknown` type, which represents unknown values
The primary use case for these APIs is to allow nested, properties with
known values to be accessed via the lifted property accessor even when
the containing property is not fully know. A common example of this
pattern is the `metadata.name` property of a Kubernetes `Namespace`
object: while other properties of the `metadata` bag may be unknown,
`name` is often known. These APIs allow `ns.metadata.name` to return a
known value in this case.
In order to avoid exposing downlevel SDKs to unknown values--a change
which could break user code by exposing it to unexpected values--a
language SDK must indicate whether or not it supports first-class
unknown values as part of each `RegisterResourceRequest`.
These changes also allow us to avoid breaking user code with the new
behavior introduced by the prior commit.
Fixes#3190.
Adds the ability to provide `transformations` to modify the properties and resource options that will be used for any child resource of a component or stack.
This offers an "escape hatch" to modify the behaviour of a component by peeking behind it's abstraction. For example, it can be used to add a resource option (`additionalSecretOutputs`, `aliases`, `protect`, etc.) to a specific known child of a component, or to modify some input property to a child resource if the component does not (yet) expose the ability to control that input directly. It could also be used for more interesting scenarios - such as:
1. Automatically applying tags to all resources that support them in a stack (or component)
2. Injecting real dependencies between stringly-referenced resources in a Helm Chart
3. Injecting explicit names using a preferred naming convention across all resources in a stack
4. Injecting `import` onto all resources by doing a lookup into a name=>id mapping
Because this feature makes it possible to peek behind a component abstraction, it must be used with care in cases where the component is versioned independently of the use of transformations. Also, this can result in "spooky action at a distance", so should be used judiciously. That said - this can be used as an escape hatch to unblock a wide variety of common use cases without waiting on changes to be made in a component implementation.
Each transformation is passed the `resource`, `name`, `type`, `props` and `opts` that are passed into the `Resource` constructor for any resource descended from the resource that has the transformation applied. The transformation callback can optionally return alternate versions of the `props` and `opts` to be used in place of the original values provided to the resource constructor.
Fixes#2068.
* Fix some tracing issues.
- Add endpoints for `startUpdate` and `postEngineEventsBatch` so that
spans for these invocations have proper names
- Inject a tracing span when walking a plan so that resource operations
are properly parented
- When handling gRPC calls, inject a tracing span into the call's
metadata if no span is already present so that resource monitor and
engine spans are properly parented
- Do not trace client gRPC invocations of the empty method so that these
calls (which are used to determine server availability) do not muddy
the trace. Note that I tried parenting these spans appropriately, but
doing so broke the trace entirely.
With these changes, the only unparented span in a typical Pulumi
invocation is a single call to `getUser`. This span is unparented
because that call does not have a context available. Plumbing a context
into that particular call is surprisingly tricky, as it is often called
by other context-less functions.
* Make tracing support more flexible.
- Add support for writing trace data to a local file using Appdash
- Add support for viewing Appdash traces via the CLI
With these changes, a user may explicitly set `deleteBeforeReplace` to
`false` in order to disable DBR behavior for a particular resource. This
is the SDK + CLI escape hatch for cases where the changes in
https://github.com/pulumi/pulumi-terraform/pull/465 cause undesirable
behavior.
* Allow resource IDs to change on reresh steps
This is a requirement for us to be able to move forward with
versions of the Terraform Azurerm provider. In v1.32.1, there was
a state migration that changed the ID format of the azure table
storage resource
We used to have a check in place for old ID being equal to new ID.
This has been changed now and we allow the change of ID to happen
in the RefreshStep
* Update pkg/resource/deploy/step.go
Co-Authored-By: Pat Gavlin <pat@pulumi.com>
When using StackReference, if the stack you reference contains any
secret outputs, we have to mark the entire `outputs` member as a
secret output. This is because we only track secretness on a per
`Output<T>` basis.
For `getSecret` and friends, however, we know the name of the output
you are looking up and we can be smarter about if the returned
`Output<T>` should be treated as a secret or not.
This change augments the provider for StackReference such that it also
returns a list of top level stack output names who's values contain
secrets. In the language SDKs, we use this information, when present,
to decide if we should return an `Output<T>` that is marked as a
secret or not. Since the SDK and CLI are independent components, care
is taken to ensure that when the CLI does not return this information,
we behave as we did before (i.e. if any output is a secret, we treat
every output as a secret).
Fixes#2744
These changes add support for passing `ignoreChanges` paths to resource
providers. This is intended to accommodate providers that perform diffs
between resource inputs and resource state (e.g. all Terraform-based
providers, the k8s provider when using API server dry-runs). These paths
are specified using the same syntax as the paths used in detailed diffs.
In addition to passing these paths to providers, the existing support
for `ignoreChanges` in inputs has been extended to accept paths rather
than top-level keys. It is an error to specify a path that is missing
one or more component in the old or new inputs.
Fixes#2936, #2663.
Most of these options are typically left unset. In order to make it
easier to update the lifecycle test when adding new options, collect
them in a bag s.t. most callsites can go without being updated.
If we encounter a provider with old inputs but no old outputs when reading
a checkpoint file, use the old inputs as the old outputs. This handles the
scenario where the CLI is being upgraded from a version that did not
reflect provider inputs to provider outputs, and a provider is being
upgraded from a version that did not implement `DiffConfig` to a version
that does.
Fixes https://github.com/pulumi/pulumi-kubernetes/issues/645.
Currently, `pulumi preview` fails immediately when any resource
definition in a Pulumi app is found to be in violation of a resource
policy. But, users would like `preview` to report as many policy
violations as it can before terminating with an error, so that they can
fix many of them before running `preview` again.
This commit will thus change `pulumi preview` to do this sort of
"batching" for policy violations. The engine will attempt to run the
entire preview step, validating every resource definition with the
relevant known resource policies, before finally reporting an error if
any violations are detected.
Fixespulumi/pulumi-policy#31
* Plumbing the custom timeouts from the engine to the providers
* Plumbing the CustomTimeouts through to the engine and adding test to show this
* Change the provider proto to include individual timeouts
* Plumbing the CustomTimeouts from the engine through to the Provider RPC interface
* Change how the CustomTimeouts are sent across RPC
These errors were spotted in testing. We can now see that the timeout
information is arriving in the RegisterResourceRequest
```
req=&pulumirpc.RegisterResourceRequest{
Type: "aws:s3/bucket:Bucket",
Name: "my-bucket",
Parent: "urn:pulumi:dev::aws-vpc::pulumi:pulumi:Stack::aws-vpc-dev",
Custom: true,
Object: &structpb.Struct{},
Protect: false,
Dependencies: nil,
Provider: "",
PropertyDependencies: {},
DeleteBeforeReplace: false,
Version: "",
IgnoreChanges: nil,
AcceptSecrets: true,
AdditionalSecretOutputs: nil,
Aliases: nil,
CustomTimeouts: &pulumirpc.RegisterResourceRequest_CustomTimeouts{
Create: 300,
Update: 400,
Delete: 500,
XXX_NoUnkeyedLiteral: struct {}{},
XXX_unrecognized: nil,
XXX_sizecache: 0,
},
XXX_NoUnkeyedLiteral: struct {}{},
XXX_unrecognized: nil,
XXX_sizecache: 0,
}
```
* Changing the design to use strings
* CHANGELOG entry to include the CustomTimeouts work
* Changing custom timeouts to be passed around the engine as converted value
We don't want to pass around strings - the user can provide it but we want
to make the engine aware of the timeout in seconds as a float64
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.
Thse changes make a subtle but critical adjustment to the process the
Pulumi engine uses to determine whether or not a difference exists
between a resource's actual and desired states, and adjusts the way this
difference is calculated and displayed accordingly.
Today, the Pulumi engine get the first chance to decide whether or not
there is a difference between a resource's actual and desired states. It
does this by comparing the current set of inputs for a resource (i.e.
the inputs from the running Pulumi program) with the last set of inputs
used to update the resource. If there is no difference between the old
and new inputs, the engine decides that no change is necessary without
consulting the resource's provider. Only if there are changes does the
engine consult the resource's provider for more information about the
difference. This can be problematic for a number of reasons:
- Not all providers do input-input comparison; some do input-state
comparison
- Not all providers are able to update the last deployed set of inputs
when performing a refresh
- Some providers--either intentionally or due to bugs--may see changes
in resources whose inputs have not changed
All of these situations are confusing at the very least, and the first
is problematic with respect to correctness. Furthermore, the display
code only renders diffs it observes rather than rendering the diffs
observed by the provider, which can obscure the actual changes detected
at runtime.
These changes address both of these issues:
- Rather than comparing the current inputs against the last inputs
before calling a resource provider's Diff function, the engine calls
the Diff function in all cases.
- Providers may now return a list of properties that differ between the
requested and actual state and the way in which they differ. This
information will then be used by the CLI to render the diff
appropriately. A provider may also indicate that a particular diff is
between old and new inputs rather than old state and new inputs.
Fixes#2453.
This commit will expose the new `Invoke` routine that lists resource
outputs through the Node.js SDK.
This API is implemented via a new API, `EnumerablePromise`, which is a
collection of simple query primitives built onto the `Promise` API. The
query model is lazy and LINQ-like, and generally intended to make
`Promise` simpler to deal with in query scenarios. See #2601 for more
details.
Fixes#2600.
This commit touches an intersection of a few different provider-oriented
features that combined to cause a particularly severe bug that made it
impossible for users to upgrade provider versions without seeing
replacements with their resources.
For some context, Pulumi models all providers as resources and places
them in the snapshot like any other resource. Every resource has a
reference to the provider that created it. If a Pulumi program does not
specify a particular provider to use when performing a resource
operation, the Pulumi engine injects one automatically; these are called
"default providers" and are the most common ways that users end up with
providers in their snapshot. Default providers can be identified by
their name, which is always prefixed with "default".
Recently, in an effort to make the Pulumi engine more flexible with
provider versions, it was made possible for the engine to have multiple
default providers active for a provider of a particular type, which was
previously not possible. Because a provider is identified as a tuple of
package name and version, it was difficult to find a name for these
duplicate default providers that did not cause additional problems. The
provider versioning PR gave these default providers a name that was
derived from the version of the package. This proved to be a problem,
because when users upgraded from one version of a package to another,
this changed the name of their default provider which in turn caused all
of their resources created using that provider (read: everything) to be
replaced.
To combat this, this PR introduces a rule that the engine will apply
when diffing a resource to determine whether or not it needs to be
replaced: "If a resource's provider changes, and both old and new
providers are default providers whose properties do not require
replacement, proceed as if there were no diff." This allows the engine
to gracefully recognize and recover when a resource's default provider changes
names, as long as the provider's config has not changed.
Previously, when the CLI wanted to install a plugin, it used a special
method, `DownloadPlugin` on the `httpstate` backend to actually fetch
the tarball that had the plugin. The reason for this is largely tied
to history, at one point during a closed beta, we required presenting
an API key to download plugins (as a way to enforce folks outside the
beta could not download them) and because of that it was natural to
bake that functionality into the part of the code that interfaced with
the rest of the API from the Pulumi Service.
The downside here is that it means we need to host all the plugins on
`api.pulumi.com` which prevents community folks from being able to
easily write resource providers, since they have to manually manage
the process of downloading a provider to a machine and getting it on
the `$PATH` or putting it in the plugin cache.
To make this easier, we add a `--server` argument you can pass to
`pulumi plugin install` to control the URL that it attempts to fetch
the tarball from. We still have perscriptive guidence on how the
tarball must be
named (`pulumi-[<type>]-[<provider-name>]-vX.Y.Z.tar.gz`) but the base
URL can now be configured.
Folks publishing packages can use install scripts to run `pulumi
plugin install` passing a custom `--server` argument, if needed.
There are two improvements we can make to provide a nicer end to end
story here:
- We can augment the GetRequiredPlugins method on the language
provider to also return information about an optional server to use
when downloading the provider.
- We can pass information about a server to download plugins from as
part of a resource registration or creation of a first class
provider.
These help out in cases where for one reason or another where `pulumi
plugin install` doesn't get run before an update takes place and would
allow us to either do the right thing ahead of time or provide better
error messages with the correct `--server` argument. But, for now,
this unblocks a majority of the cases we care about and provides a
path forward for folks that want to develop and host their own
resource providers.
Adds a new resource option `aliases` which can be used to rename a resource. When making a breaking change to the name or type of a resource or component, the old name can be added to the list of `aliases` for a resource to ensure that existing resources will be migrated to the new name instead of being deleted and replaced with the new named resource.
There are two key places this change is implemented.
The first is the step generator in the engine. When computing whether there is an old version of a registered resource, we now take into account the aliases specified on the registered resource. That is, we first look up the resource by its new URN in the old state, and then by any aliases provided (in order). This can allow the resource to be matched as a (potential) update to an existing resource with a different URN.
The second is the core `Resource` constructor in the JavaScript (and soon Python) SDKs. This change ensures that when a parent resource is aliased, that all children implicitly inherit corresponding aliases. It is similar to how many other resource options are "inherited" implicitly from the parent.
Four specific scenarios are explicitly tested as part of this PR:
1. Renaming a resource
2. Adopting a resource into a component (as the owner of both component and consumption codebases)
3. Renaming a component instance (as the owner of the consumption codebase without changes to the component)
4. Changing the type of a component (as the owner of the component codebase without changes to the consumption codebase)
4. Combining (1) and (3) to make both changes to a resource at the same time
We model providers as resources in our state file, but we were
neglecting to set Outputs for these resources. This was problematic
when we started to try to run DiffConfig, because when diffing a
resource we compare thed new inputs and the old outputs, but the
resource never had any old outputs, so it was impossible for the
provider to see what the old state of the resource was.
To fix this, we now reflect the inputs we use the create the provider
reference as outputs on the resource.
For provider plugins, the gRPC interfaces expect that a URN would be
included as part of the DiffConfig/CheckConfig request, which means we
need to flow this value into our Provider interface.
This change does that.
In our system, we model secrets as outputs with an additional bit of
metadata that says they are secret. For Read and Register resource
calls, our RPC interface says if the client side of the interface can
handle secrets being returned (i.e. the language SDK knows how to
sniff for the special signiture and resolve the output with the
special bit set).
For Invoke, we have no such model. Instead, we return a `Promise<T>`
where T's shape has just regular property fields. There's no place
for us to tack the secretness onto, since there are no Outputs.
So, for now, don't even return secret values back across the invoke
channel. We can still take them as arguments (which is good) but we
can't even return secrets as part of invoke calls. This is not ideal,
but given the way we model these sources, there's no way around
this. Fortunately, the result of these invoke calls are not stored in
the checkpoint and since the type is not Output<T> it will be clear
that the underlying value is just present in plaintext. A user that
wants to pass the result of an invoke into a resource can turn an
existing property into a secret via `pulumi.secret`.
We have many cases where we want to do the following:
deployment -> snapshot -> process snapshot -> deployment
We now retain information in the snapshot about the secrets manager
that was used to construct it, so in these round trip cases, we can
re-use the existing manager.
A new `Secret` property value is introduced, and plumbed across the
engine.
- When Unmarshalling properties /from/ RPC calls, we instruct the
marshaller to retain secrets, since we now understand them in the
rest of the engine.
- When Marshalling properties /to/ RPC calls, we use or tracked data
to understand if the other side of the connection can accept
secrets. If they can, we marshall them in a similar manner to assets
where we have a special object with a signiture specific for secrets
and an underlying value (which is the /plaintext/ value). In cases
where the other end of the connection does not understand secrets,
we just drop the metadata and marshal the underlying value as we
normally would.
- Any secrets that are passed across the engine events boundary are
presently passed as just `[secret]`.
- When persisting secret values as part of a deployment, we use a rich
object so that we can track the value is a secret, but right now the
underlying value is not actually encrypted.
In previous commits, we have changed the language plugin protocol to
allow the host to communicate that the plugin is meant to boot in "query
mode." In nodejs, this involves not doing things like registering the
default stack resource. This commit will implement this functionality.
This command exposes a new resource `Invoke` operation,
`pulumi:pulumi:readStackResourceOutputs` which retrieves all resource
outputs for some user-specified stack, not including those deleted.
Fixes#2600.
`pulumi query` is designed, essentially, as a souped-up `exec`. We
execute a query program, and add a few convenience constructs (e.g., the
default providers that give you access to things like `getStack`).
Early in the design process, we decided to not re-use the `up`/update
path, both to minimize risk to update operations, and to simplify the
implementation.
This commit will add this "parallel query universe" into the engine
package. In particular, this includes:
* `QuerySource`, which executes the language provider running the query
program, and providing it with some simple constructs, such as the
default provider, which provides access to `getStack`. This is much
like a very simplified `EvalSource`, though notably without any of the
planning/step execution machinery.
* `queryResmon`, which disallows all resource operations, except the
`Invoke` that retrieves the resource outputs of some stack's last
snapshot. This is much like a simplified `resmon`, but without any of
the provider resolution, and without and support for resource
operations generally.
* Various static functions that pull together miscellaneous things
needed to execute a query program. Notably, this includes gathering
language plugins.
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.
Fixes#2650.
We have historically relied on merging inputs and outputs in several places in the engine. This used to be necessary, as discussed in #2650 (comment), but our core engine model has moved away from depending on this. However, we still have a couple places we do this merge, and those places have triggered several severe issues recently in subtle cases.
We believe that this merging should no longer be needed for a correct interpretation of the current engine model, and indeed that doing the merge actively violates the contract with providers. In this PR we remove the remaining places where this input + output merge was being done. In all three cases, we use just the Outputs, which for most providers will already include the same values as the inputs - but correctly as determined by the provider itself.
* Load specific provider versions if requested
As part of pulumi/pulumi#2389, we need the ability for language hosts to
tell the engine that a particular resource registration, read, or invoke
needs to use a particular version of a resource provider. This was not
previously possible before; the engine prior to this commit loaded
plugins from a default provider map, which was inferred for every
resource provider based on the contents of a user's package.json, and
was itself prone to bugs.
This PR adds the engine support needed for language hosts to request a
particular version of a provider. If this occurs, the source evaluator
specifically records the intent to load a provider with a given version
and produces a "default" provider registration that requests exactly
that version. This allows the source evaluator to produce multiple
default providers for a signle package, which was previously not
possible.
This is accomplished by having the source evaluator deal in the
"ProviderRequest" type, which is a tuple of version and package. A
request to load a provider whose version matches the package of a
previously loaded provider will re-use the existing default provider. If
the version was not previously loaded, a new default provider is
injected.
* CR Feedback: raise error if semver is invalid
* CR: call String() if you want a hash key
* Update pkg/resource/deploy/providers/provider.go
Co-Authored-By: swgillespie <sean@pulumi.com>
Fixes#2633.
Currently when a user runs `refresh` and a resource is in a state of
error, the `refresh` will fail and the resource state will not be
persisted. This can make it vastly harder to incrementally fix
infrastructure. The issue mentioned above explains more of the
historical context, as well as some specific failure modes.
This commit resolves this issue by causing refresh to *not* report an
error in this case, and instead to simply log a warning that the
`refresh` has recognized that the resource is in an unhealthy state
during state sync.
This commit switches from dep to Go 1.12 modules for tracking Pulumi
dependencies. Rather than _building_ using Go modules, we instead use the `go
mod vendor` command to populate a vendor tree in the same way as `dep ensure`
was previously doing.
In order to prevent checksum mismatches, it was necessary to also update CI to
use Go 1.12 instead of 1.11 - which also necessitated fixing some linting errors
which appeared with the upgraded golangci-lint for 1.12.
* Install missing plugins on startup
This commit addresses the problem of missing plugins by scanning the
snapshot and language host on startup for the list of required plugins
and, if there are any plugins that are required but not installed,
installs them. The mechanism by which plugins are installed is exactly
the same as 'pulumi plugin install'.
The installation of missing plugins is best-effort and, if it fails,
will not fail the update.
This commit addresses pulumi/pulumi-azure#200, where users using Pulumi
in CI often found themselves missing plugins.
* Add CHANGELOG
* Skip downloading plugins if no client provided
* Reduce excessive test output
* Update Gopkg.lock
* Update pkg/engine/destroy.go
Co-Authored-By: swgillespie <sean@pulumi.com>
* CR: make pluginSet a newtype
* CR: Assign loop induction var to local var
These changes take advantage of the newly-added support for returning
inputs from Read to update a resource's inputs as part of a refresh.
As a consequence, the Pulumi engine will now properly detect drift
between the actual state of a resource and the desired state described
by the program and generate appropriate update or replace steps.
As part of these changes, a resource's old inputs are now passed to the
provider when performing a refresh. The provider can take advantage of
this to maintain the accuracy of any additional data or metadata in the
resource's inputs that may need to be updated during the refresh.
This is required for the complete implementation of
https://github.com/pulumi/pulumi-terraform/pull/349. Without access to
the old inputs for a resource, TF-based providers would lose all
information about default population during a refresh.
If a provider returns information about the top-level properties that
differ, use those keys to filter the diffs that are rendered to the
user.
Fixes#2453.
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.
In general, a "delete" in Pulumi is destroying an actual physical
resource. In the case of a read resource, however, the delete is
merely removing the resource from the stack; the physical resource
is not affected. These changes attempt to clarify this situation by
using the term "discard" rather than "delete".
Fixes#2015.
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.
This ensures that the gRPC server is properly shut down. This fixes an
issue in which a resource plugin that is still configuring could report
log messages to the plugin host, which would in turn attempt to send
diagnostic packets over a closed channel, causing a panic.
Fixes#2170.
After #2088, we began calling `Diff` on providers that are not configured
due to unknown configuration values. This hit an assertion intended to
detect exactly this scenario, which was previously unexpected.
These changes adjust `Diff` to indicate that a Diff is unavailable and
return an error message that describes why. The step generator then
interprets the diff as indicating a normal update and issues the error
message to the diagnostic stream.
Fixes#2223.
These changes add a new resource to the Pulumi SDK,
`pulumi.StackReference`, that represents a reference to another stack.
This resource has an output property, `outputs`, that contains the
complete set of outputs for the referenced stack. The Pulumi account
performing the deployment that creates a `StackReference` must have
access to the referenced stack or the call will fail.
This resource is implemented by a builtin provider managed by the engine.
This provider will be used for any custom resources and invokes inside
the `pulumi:pulumi` module. Currently this provider supports only the
`pulumi:pulumi:StackReference` resource.
Fixes#109.
We run the same suite of changes that we did on gometalinter. This
ended up catching a few new issues, some of which were addressed and
some of which were baselined.
In preparation for some workspace restructuring, I decided to scratch a
few itches of my own in the code:
* Change project's RuntimeInfo field to just Runtime, to match the
serialized name in JSON/YAML.
* Eliminate the no-longer-used Context and NoDefaultIgnores fields on
project, and all of the associated legacy PPC-related code.
* Eliminate the no-longer-used IgnoreFile constant.
* Remove a bunch of "// nolint: lll" annotations, and simply format
the structures with comments on dedicated lines, to avoid overly
lengthy lines and lint suppressions.
* Mark Dependencies and InitErrors as `omitempty` in the JSON
serialization directives for CheckpointV2 files. This was done for
the YAML directives, but (presumably accidentally) omitted for JSON.
Downlevel versions of the Pulumi Node SDK assumed that a parallelism
level of zero implied serial execution, which current CLIs use to signal
unbounded parallelism. This commit works around the downlevel issue by
using math.MaxInt32 to signal unbounded parallelism.
The provider registry was checking for a `nil` provider instance before
checking for a non-nil error. This caused the CLI to fail to report
important errors during the plugin load process (e.g. invalid checkpoint
errors) and instead report a failure to find a matching plugin.
Some providers (namely Kubernetes) require unbounded parallelism in
order to function correctly. This commit enables the engine to operate
in a mode with unbounded parallelism and switches to that mode by
default.
The preview will proceed as if the operations had not been issued (i.e.
we will not speculate on a new state for the stack). This is consistent
with our behavior prior to the changes that added pending operations to
the checkpoint.
* Process deletions conservatively in parallel
This commit allows the engine to conservatively delete resources in
parallel when it is sure that it is legal to do so. In the absence of a
true data-flow oriented step scheduler, this approach provides a
significant improvement over the existing serial deletion mechanism.
Instead of processing deletes serially, this commit will partition the
set of condemned resources into sets of resources that are known to be
legally deletable in parallel. The step executor will then execute those
independent lists of steps one-by-one until all steps are complete.
* CR: Make ResourceSet a normal map
* Only use the dependency graph if we can trust it
* Reverse polarity of pendingDeletesAreReplaces
* CR: un-export a few types
* CR: simplify control flow in step generator when scheduling
* CR: parents are dependencies, fix loop index
* CR: Remove ParentOf, add new test for parent dependencies
Recently, we eliminated bright black text, which IMHO makes the
"same" lines really stand out more than we want them to. This is
partly just due to the heavyweight nature of the "*" character,
which we precede every line with. This has the effect of making it
toughter to scan the update to see what's going to happen. The goal
of SpecUnimportant (bright black) was that we wanted to draw less
attention to certain elements of the CLI text -- and have them fade
into the background (apparently it was too successful at this ;-))
So, this change eliminates the "*" prefix for same operations
altogether. It reads better to my eyes and keeps the original intent.
* Retire pending deletions at start of plan
Instead of letting pending deletions pile up to be retired at the end of
a plan, this commit eagerly disposes of any pending deletions that were
pending at the end of the previous plan. This is a nice usability win
and also reclaims an invariant that at most one resource with a given
URN is live and at most one is pending deletion at any point in time.
* Rebase against master
* Fix a test issue arising from shared snapshots
* CR feedback
* plan -> replacement
* Use ephemeral statuses to communicate deletions
We signal provider cancellation by hangning a goroutine off of the plan
executor's parent context. To ensure clean shutdown, this goroutine also
listens on a channel that closes once the plan has finished executing.
Unfortunately, we were closing this channel too early, and the close was
racing with the cancellation signal. These changes ensure that the
channel closes after the plan has fully completed.
Fixes#1906.
Fixespulumi/pulumi-kubernetes#185.
