When reading a configuration value from standard in and standard in is
not connected to a terminal, read until EOF and then trim a trailing
newline (if present) to get the value
Fixes#822
Resources in the checkpoint file which are pending-delete represent old versions of resources which are no longer part of the active deployment. For purposes of constructing the active resource tree, we should skip these resources.
As it stands, we currently hammer the service's update logs endpoint in
a tight loop while waiting for a deployment to complete. This is not
necessary, and can indeed be deletrious to the user experience: it
appears that this may be exacerbating some mysterious 500 responses from
API gateway.
These changes add a brief sleep in the relevant loop that waits for 5
seconds if the last call produced new log entries or 15 seconds if it
did not.
Fixes#844.
Today we don't send any version information with API requests to the service, so we cannot make breaking changes between versions of the backend API while preserving backwards compatibility.
This PR adds a `User-Agent` header with REST requests that sends a CLI version number of "1". If the service were to make a breaking change, it could use this header to determine which response handler to use. (e.g. return a different response for "" or "1" and another for "2".) Obviously we want to avoid being in this situation, but in the event that we need to make a breaking change, we'll need this value.
We send the Pulumi version as well, though the SDK will probably rev much more quickly than the backend API client version.
Fixes#848
We were pretty careful to keep the test directory around if the test ever
exited early due to a panic or error return. But if the test ran to
completion and failed -- for example, if ExtraRuntimeValidation caused the
test to fail -- we would end up deleting the test directory.
Fixes#868
Previously, when uploading a projectm to the service, we would only
upload the folder rooted by the Pulumi.yaml for that project. This
worked well, but it meant that customers needed to structure their
code in a way such that Pulumi.yaml was always as the root of their
project, and if they wanted to share common files between two projects
there was no good solution for doing this.
This change introduces an optional piece of metadata, named context,
that can be added to Pulumi.yaml, which allows controlling the root
folder used for computing the root folder to archive from. When it is
set, it is combined with the location of the Pulumi.yaml file for the
project we are uploading and that folder is uses as the root of what
we upload to the service.
Fixes: #574
The existing logic would flow colorization information into the
engine, so depending on the settings in the CLI, the engine may or may
not have emitted colorized events. This coupling is not great and we
want to start moving to a world where the presentation happens
exclusively at the CLI level.
With this change, the engine will always produce strings that have the
colorization formatting directives (i.e. the directives that
reconquest/loreley understands) and the CLI will apply
colorization (which could mean either running loreley to turn the
directives into ANSI escape codes, or drop them or retain them, for
debuging purposes).
Fixes#742
If we do not do this, the engine will assume that it should elide
unknown input/output properties when interacting with the language
and resource providers and we will produce unexpected results.
This PR adds a new `pulumi history` command, which prints the update history for a stack.
The local backend stores the update history in a JSON file on disk, next to the checkpoint file. The cloud backend simply provides the update metadata, and expects to receive all the data from a (NYI) `/history` REST endpoint.
`pkg/backend/updates.go` defines the data that is being persisted. The way the data is wired through the system is adding a new `backend.UpdateMetadata` parameter to a Stack/Backend's `Update` and `Destroy` methods.
I use `tests/integration/stack_outputs/` as the simple app for the related tests, hence the addition to the `.gitignore` and fixing the name in the `Pulumi.yaml`.
Fixes#636.
Previously, the `pulumi` tool did not show any indication of progress
when doing a deployment. Combined with the fact that we do not create
resources in parallel it meant that sometime `pulumi` would appear to
hang, when really it was just waiting on some resource to be created
in AWS. In addition, some AWS resources take a long time to create and
CI systems like travis will kill the job if there is no output. This
causes us (and our customers) to have to do crazy dances where we
launch shell scripts that write a dot to the console every once in a
while so we don't get killed. While we plan to overhaul the output
logic (see #617), we take a first step towards interactivity by simply
having a nice little spinner (in the interactive case) and when run
non interactive have `pulumi` print a message that it is still
working.
Fixes#794
This PR exports the aggregate resource changes for update and destroy operations. We'll use this information in #636 when summarizing previous updates.
I initially started with a new struct that had fields like `Created`, `Deleted`, `Unchanged`, etc. But it became cumbersome with the seven different type of resource operations we perform. So instead went with the more flexible `map[deploy.StepOp]int`.
Surprisingly `pulumi login -c https://google.com` would succeed. This was because we were too lax in our way of validating credentials. We take the provided cloud URL and call the "GetCurrentUserHandler" method. But we were only checking that it returned a successful response, not that it was actually valid JSON.
So in the "https://google.com" case, Google returned HTML describing a 404 error, but since the sever response was 200, the Pulumi CLI assumed things were on the up and up.
We now parse the response as JSON, and confirm the response has a `name` property that is non-nil. This heuristic covers the majority of false-positive cases, but without us needing to move all of the service's API shape for users, which includes organizations, which includes Clouds, etc. into `pulumi`.
Fixes https://github.com/pulumi/pulumi-service/issues/457. As an added bonus, we now return a much more useful error message.
In the Pulumi Cloud, there is no guarantee that two stacks will share
the same encryption key. This means that encrypted config can not be
shared across stacks (in the Pulumi.yaml) file. To mimic this behavior
in the local experience, we now use a unique key per stack.
When upgrading an existing project, for any stack with existing
secrets, we copy the existing key into this stack. Future stacks will
get thier own encryption key. This strikes a balance between
expediency of implementation, the end user UX and not having to make a
breaking change.
As part of this change, I have introduced a CHANGELOG.md file in the
root of the repository and added a small note about the change to it.
Fixes#769
We did not pretty print either the workspace settings file or the
repository settings file, but pretty print other files like the
credentials file and checkpoints. Now we do.
Fixes#540
This PR surfaces the configuration options available to updates, previews, and destroys to the Pulumi Service. As part of this I refactored the options to unify them into a single `engine.UpdateOptions`, since they were all overlapping to various degrees.
With this PR we are adding several new flags to commands, e.g. `--summary` was not available on `pulumi destroy`.
There are also a few minor breaking changes.
- `pulumi destroy --preview` is now `pulumi destroy --dry-run` (to match the actual name of the field).
- The default behavior for "--color" is now `Always`. Previously it was `Always` or `Never` based on the value of a `--debug` flag. (You can specify `--color always` or `--color never` to get the exact behavior.)
Fixes#515, and cleans up the code making some other features slightly easier to add.
In travis, we've seen cases where writes to our standard streams
results in an error like: `/dev/stderr: resource temporarily
unavailable` which causes the tests to panic.
Now, in a perfect world, writes to /dev/stderr would not fail in this
way, but we do not live in a perfect world. Other processes on the
machine may make stderr/stdout non-blocking. We've are now seeing this
failure in Travis more often and it is masking real Pulumi failures
we want to debug.
This change restructures the test framework code a bit, to make it
easier to introduce additional languages. Our knowledge of Yarn and
Node.js project structure, for instance, was previously baked in to
the test logic, in a way that was hard to make, for instance, Yarn
optional. (In Python, of course, it will not be used.) To better
support this, I've moved some state onto a new programTester struct
that we can use to lazily find binaries required during the testing
(such as Yarn, Pip, and so on). I'm committing this separately so
that I can minimize merge conflicts in the Python work.
Fix two references to the now-unnamed `dir` that should have been to
other variables.
Check a real condition before the deferred call to RemoveAll instead of
checking the error return.
My previous change to stop supplying unknown properties to providers
broke `pulumi preview` in the case of unknown inputs. This change
restores the previous behavior for previews only; the new unknown-free
behavior remains for applies.
Fixes#790.
Before these changes, we were inconsistent in our treatment of unknown
property values across the resource provider RPC interface. `Check` and
`Diff` were retaining unknown properties in inputs and outputs;
`Create`, `Update`, and `Delete` were not. This interacted badly with
recent changes to `Check` to return all provider inputs--i.e. not just
defaults--from that method: if an unknown input was provided, it would
be present in the returned inputs, which would eventually confuse the
differ by giving the appearance of changes where none were present.
These changes remove unknowns from the provider interface entirely:
unknown property values are never passed to a provider, and a provider
must never return an unknown property value.
This is the primary piece of the fix for pulumi/pulumi-terraform#93.
These changes refactor the engine's entrypoints--Deploy, Destroy, and
Preview--to be update-centric rather than stack-centric. Each of these
methods now takes a value of a new type, Update, that abstracts away the
vagaries of fetching and maintaining the update's state. This
refactoring also reinforces Pulumi.yaml as a CLI concept rather than an
engine concept; the CLI is now the only reader/writer of this format.
These changes will smooth the way for a few refactorings on the service
side that will aid in update isolation.
These changes add the ability to export a stack's latest deployment or
import a new deployment to a stack via the Pulumi CLI. These
capabilities are exposed by two new verbs under `stack`:
- export, which writes the current stack's latest deployment to stdout
- import, which reads a new deployment from stdin and applies it to the
current stack.
In the local case, this simply involves reading/writing the stack's
latest checkpoint file. In the cloud case, this involves hitting two new
endpoints on the service to perform the export or import.
This PR updates the `pkg/testing/integration` package to support running integration tests against the Pulumi Service if desired. This is done through adding new options to `ProgramTestOptions`. (Generally adding support for providing values to flags that were previously inaccessible.)
I added an integration test to confirm that it all works if the PULUMI_API environment variable is set. These tests aren't run in Travis, only manually. Since we cannot reliably run tests from `master` against the service because of the delay in rolling out updates to the Pulumi SDK, etc.
This change incorporates feedback on https://github.com/pulumi/pulumi/pull/764,
in addition to refactoring the retry logic to use our retry framework rather
than hand-rolling it in the REST API code. It's a minor improvement, but at
least lets us consolidate some of this logic which we'll undoubtedly use more
of over time.
We saw an issue where a user was mid-update, and got a networking
error stating `read: operation timed out`. We believe this was simply
a local client error, due to a flaky network. We should be resilient
to such things during updates, particularly when there's no way to
"reattach" to an in-progress udpate (see pulumi/pulumi#762).
This change accomplishes this by changing our retry logic in the
cloud backend's waitForUpdates function. Namely:
* We recognize three types of failure, and react differently:
- Expected HTTP errors. For instance, the 504 Gateway Timeouts
that we already retried in the face of. In these cases, we will
silently retry up to 10 times. After 10 times, we begin warning
the user just in case this is a persistent condition.
- Unexpected HTTP errors. The CLI will quit immediately and issue
an error to the user, in the usual ways. This covers
Unauthorized among other things. Over time, we may find that we
want to intentionally move some HTTP errors into the above.
- Anything else. This covers the transient networking errors case
that we have just seen. I'll admit, it's a wide net, but any
instance of this error issues a warning and it's up to the user
to ^C out of it. We also log the error so that we'll see it if
the user shares their logs with us.
* We implement backoff logic so that we retry very quickly (100ms)
on the first failure, and more slowly thereafter (1.5x, up to a max
of 5 seconds). This helps to avoid accidentally DoSing our service.
This merging causes similar issues to those it did in `Check`, and
differs from the approach we take to `Diff`. This can causes problems
such as an inability to remove properties.
Use the new {en,de}crypt endpoints in the Pulumi.com API to secure
secret config values. The ciphertext for a secret config value is bound
to the stack to which it applies and cannot be shared with other stacks
(e.g. by copy/pasting it around in Pulumi.yaml). All secrets will need
to be encrypted once per target stack.
This fixes a few more edit directory issues, where we didn't
correctly propagate the changes in edit directory required during
subsequent destroy/stack activities. It also fixes a few error
paths so that we preserve the right directory to be removed.
This change implements resource protection, as per pulumi/pulumi#689.
The overall idea is that a resource can be marked as "protect: true",
which will prevent deletion of that resource for any reason whatsoever
(straight deletion, replacement, etc). This is expressed in the
program. To "unprotect" a resource, one must perform an update setting
"protect: false", and then afterwards, they can delete the resource.
For example:
let res = new MyResource("precious", { .. }, { protect: true });
Afterwards, the resource will display in the CLI with a lock icon, and
any attempts to remove it will fail in the usual ways (in planning or,
worst case, during an actual update).
This was done by adding a new ResourceOptions bag parameter to the
base Resource types. This is unfortunately a breaking change, but now
is the right time to take this one. We had been adding new settings
one by one -- like parent and dependsOn -- and this new approach will
set us up to add any number of additional settings down the road,
without needing to worry about breaking anything ever again.
This is related to protected stacks, as described in
pulumi/pulumi-service#399. Most likely this will serve as a foundational
building block that enables the coarser grained policy management.
This change adds the ability to do very coarse-grained negative
tests in our integration test framework. Either a test itself,
or one of its edits, may be marked ExpectFailure == true, at which
point either the preview or update MUST fail (and, if one fails
without this being set, we still treat it as an error).
Our recent changes to colorization changed from a boolean to a tri-valued
enum (Always, Never, Raw). The events from the service, however, are still
boolean-valued. This changes the message payload to carry the full values.
The prior behavior with cloud authentication was a bit confusing
when authenticating against anything but https://pulumi.com/. This
change fixes a few aspects of this:
* Improve error messages to differentiate between "authentication
failed" and "you haven't logged into the target cloud URL."
* Default to the cloud you're currently authenticated with, rather
than unconditionally selecting https://pulumi.com/. This ensures
$ pulumi login -c https://api.moolumi.io
$ pulumi stack ls
works, versus what was currently required
$ pulumi login -c https://api.moolumi.io
$ pulumi stack ls -c https://api.moolumi.io
with confusing error messages if you forgot the second -c.
* To do this, our default cloud logic changes to
1) Prefer the explicit -c if supplied;
2) Otherwise, pick the "currently authenticated" cloud; this is
the last cloud to have been targeted with pulumi login, or
otherwise the single cloud in the list if there is only one;
3) https://pulumi.com/ otherwise.
We hadn't previously passed the planning flag when printing resource
outputs, meaning any computed ones now are being printed as "undefined".
Instead, we prefer to see the "computed<string>" type name.
We do not need all of the information in the old state for this call, as
outputs will not be read by the provider during validation or defaults
computation.
This change adds a bit more tracing context to RPC marshaling
logging so that it's easier to attribute certain marshaling calls.
Prior to this, we'd just have a flat list of "marshaled property X"
without any information about what the marshaling pertained to.
This change passes a resource's old output state, so that it contains
everything -- defaults included -- for purposes of the provider's diffing.
Not doing so can lead the provider into thinking some of the requisite
state is missing.
Part of the work to make it easier to tests of diff output. Specifically, we now allow users to pass --color=option for several pulumi commands. 'option' can be one of 'always', 'never', 'raw', and 'auto' (the default).
The meaning of these flags are:
1. auto: colorize normally, unless in --debug
2. always: always colorize no matter what
3. never: never colorize no matter what.
4. raw: colorize, but preserve the original "<{%%}>" style control codes and not the translated platform specific codes. This is for testing purposes and ensures we can have test for this stuff across platform.
This will allow us to remove a lot of current boilerplate in individual tests, and move it into the test harness.
Note that this will require updating users of the integration test framework. By moving to a property bag of inputs, we should avoid needing future breaking changes to this API though.
This change adds rudimentary delete-before-create support (see
pulumi/pulumi#450). This cannot possibly be complete until we also
implement pulumi/pulumi#624, becuase we may try to delete a resource
while it still has dependent resources (which almost certainly will
fail). But until then, we can use this to manually unwedge ourselves
for leaf-node resources that do not support old and new resources
living side-by-side.
As articulated in #714, the way config defaults to workspace-local
configuration is a bit error prone, especially now with the cloud
workflow being the default. This change implements several improvements:
* First, --save defaults to true, so that configuration changes will
persist into your project file. If you want the old local workspace
behavior, you can specify --save=false.
* Second, the order in which we applied configuration was a little
strange, because workspace settings overwrote project settings.
The order is changed now so that we take most specific over least
specific configuration. Per-stack is considered more specific
than global and project settings are considered more specific
than workspace.
* We now warn anytime workspace local configuration is used. This
is a developer scenario and can have subtle effects. It is simply
not safe to use in a team environment. In fact, I lost an arm
this morning due to workspace config... and that's why you always
issue warnings for unsafe things.
If the service returns a 504, we happily keep looping around and
retrying until we get a valid update. Unfortunately, we missed the
else condition, which is what happens when this isn't a 504, leading
us to swallow real errors (500 and the like). Trivial fix.
Fixespulumi/pulumi#712.
Rather than displaying `computed` as we do during previews, display
`undefined` instead, as these values may be intentionally undefined by
the user's program.
Fixes#633.
Previously, we would compute all the output from the preview operation
and then display it as a single event. Instead, we should do this how
we handle things during deploy. Each logical print operaton gets a
single event and we stream them back over a channel during planning.
Fixes#660
This change just flows the project's "main" directory all the way
through to the plugins, fixing #667. In that work item, we discussed
alternative approaches, such as rewriting the asset paths, but this
is tricky because it's very tough to do without those absolute paths
somehow ending up in the checkpoint files. Just launching the
processes with the right pwd is far easier and safer, and it turns
out that, conveniently, we set up the plugin context in exactly the
same place that we read the project information.
If the stack config specifies AWS credentials, these should be used in the operations provider instead of ambient credentials. This is necessary to ensure that we have access to resources in the target account.
Fixespulumi/pulumi-service#389
* Take an options pointer so values can change as a test runs.
* Don't pass redundant information.
* Extract initialization routine.
* Fix caller.
* Check return value.
* Extract destruction logic.
* Move preview and update into their own function.
* Inline null check.
This change adds a `pulumi stack output` command. When passed no
arguments, it prints all stack output properties, in exactly the
same format as `pulumi stack` does (just without all the other stuff).
More importantly, if you pass a specific output property, a la
`pulumi stack output clusterARN`, just that property will be printed,
in a scriptable-friendly manner. This will help us automate wiring
multiple layers of stacks together during deployments.
This fixespulumi/pulumi#659.
* Revert "Make sure we properly update dir so that pulumi-destroy works."
This reverts commit 56bfc57998.
* Revert "Edits needs to continuously pass along the new directory. (#668)"
This reverts commit 8bd1822722.
* Revert "Refactor test code to make it simpler to validate code in the middle. (#662)"
This reverts commit ed65360157.
If a cloud you've previously authenticated with goes away -- as ours
sort of did, because the cloud endpoing in the CLI changed (to actually
be correct) -- then you can't logout without manually editing the
credentials file in your workspace. This is a little annoying. So,
rather than that, let's have a `pulumi logout --all` command that just
logs out of all clouds you are presently authenticated with.
This changes two things:
1) Always show the root stack, even when unchanged. This ensures
that you see the outputs during any updates, etc., which is nice.
2) Always show all outputs after operations. Before, we did some
diffing between old/new, which actually doesn't make much sense.
- Fix#644 "Re-enable use of local dev stacks". Rather than trying to be smart about using "pulumi.com" and inferring "api.pulumi.com", we just use whatever cloud URL the user provides. (e.g. "http://localhost:8080") We can improve the user experience later by providing friendly names for these things upon login. So we can show "Pulumi" or "Contoso" instead of the URL -- but let's cross that bridge later.
- Fix#640, "Better error on `pulumi login`". We only provide the more friendly error about needing to login IFF you are trying to use an authenticated Pulumi API without having creds.
The two-phase output properties change broke the ability to recover
from a failed replacement that yields pending deletes in the checkpoint.
The issue here is simply that we should remember pending registrations
only for logical operations that *also* have a "new" state (create or
update). This commit fixes this, and also adds a new step test with
fault injection to probe many interesting combinations of steps.
If the process we are trying to kill has already exited, don't treat
this as an error. This can happen when we snapshot the process tree
before the process exits but it has exited by the time we get to
trying to kill it.
Fixes#654
Every single resource has a type prefix of
pulumi:pulumi:Stack$
which makes URNs quite lengthy without adding any value. Since
they all have this prefix, adding it doesn't help to disambiguate.
This change skips adding the parent URN part when it is the built-in
automatic stack type name.
At some point, we fixed a bug in the way state is managed for "same"
steps, which meant that we wouldn't see newly added output properties.
This had the effect that, if you had a stack already stood up, and
updated it to have output properties, we would miss them. (Stacks
stood up from scratch would still have them.) This fixes that problem,
in addition to two other things: 1) we need to sort output property
names to ensure a deterministic ordering, and 2) we need to also
unconditionally apply the outputs RPC coming in, to ensure that the
resulting resource always has the correct outputs (so that for example
deleting prior output properties actually deletes them).
Also add some testing for this area to make sure we don't break again.
Fixespulumi/pulumi#631.
These changes push the `config.{Map,Value}` interfaces further down into
the deployment engine so that configuration can be decrypted nearer to
its use.
This is the first part of the fix for pulumi/pulumi-ppc#112.
As documented in issue #616, the inputs/defaults/outputs model we have
today has fundamental problems. The crux of the issue is that our
current design requires that defaults present in the old state of a
resource are applied to the new inputs for that resource.
Unfortunately, it is not possible for the engine to decide which
defaults remain applicable and which do not; only the provider has that
knowledge.
These changes take a more tactical approach to resolving this issue than
that originally proposed in #616 that avoids breaking compatibility with
existing checkpoints. Rather than treating the Pulumi inputs as the
provider input properties for a resource, these inputs are first
translated by `Check`. In order to accommodate provider defaults that
were chosen for the old resource but should not change for the new,
`Check` now takes the old provider inputs as well as the new Pulumi
inputs. Rather than the Pulumi inputs and provider defaults, the
provider inputs returned by `Check` are recorded in the checkpoint file.
Put simply, these changes remove defaults as a first-class concept
(except inasmuch as is required to retain the ability to read old
checkpoint files) and move the responsibilty for manging and
merging defaults into the provider that supplies them.
Fixes#616.
This change implements some feedback from @ellismg.
* Make backend.Stack an interface and let backends implement it,
enabling dynamic type testing/casting to access information
specific to that backend. For instance, the cloud.Stack conveys
the cloud URL, org name, and PPC name, for each stack.
* Similarly expose specialized backend.Backend interfaces,
local.Backend and cloud.Backend, to convey specific information.
* Redo a bunch of the commands in terms of these.
* Keeping with this theme, turn the CreateStack options into an
opaque interface{}, and let the specific backends expose their
own structures with their own settings (like PPC name in cloud).
* Show both the org and PPC names in the cloud column printed in
the stack ls command, in addition to the Pulumi Cloud URL.
Unrelated, but useful:
* Special case the 401 HTTP response and make a friendly error,
to tell the developer they must use `pulumi login`. This is
better than tossing raw "401: Unauthorized" errors in their face.
* Change the "Updating stack '..' in the Pulumi Cloud" message to
use the correct action verb ("Previewing", "Destroying", etc).
This change does two things:
1) Adds progress reporting to our uploads.
2) Eliminate the sleeps that burned 7 seconds at the front of
any cloud update, needlessly. It's actually impressively
fast without these!
This improves the overall cloud CLI experience workflow.
Now whether a stack is local or cloud is inherent to the stack
itself. If you interact with a cloud stack, we transparently talk
to the cloud; if you interact with a local stack, we just do the
right thing, and perform all operations locally. Aside from sometimes
seeing a cloud emoji pop-up ☁️, the experience is quite similar.
For example, to initialize a new cloud stack, simply:
$ pulumi login
Logging into Pulumi Cloud: https://pulumi.com/
Enter Pulumi access token: <enter your token>
$ pulumi stack init my-cloud-stack
Note that you may log into a specific cloud if you'd like. For
now, this is just for our own testing purposes, but someday when we
support custom clouds (e.g., Enterprise), you can just say:
$ pulumi login --cloud-url https://corp.acme.my-ppc.net:9873
The cloud is now the default. If you instead prefer a "fire and
forget" style of stack, you can skip the login and pass `--local`:
$ pulumi stack init my-faf-stack --local
If you are logged in and run `pulumi`, we tell you as much:
$ pulumi
Usage:
pulumi [command]
// as before...
Currently logged into the Pulumi Cloud ☁️https://pulumi.com/
And if you list your stacks, we tell you which one is local or not:
$ pulumi stack ls
NAME LAST UPDATE RESOURCE COUNT CLOUD URL
my-cloud-stack 2017-12-01 ... 3 https://pulumi.com/
my-faf-stack n/a 0 n/a
And `pulumi stack` by itself prints information like your cloud org,
PPC name, and so on, in addition to the usuals.
I shall write up more details and make sure to document these changes.
This change also fairly significantly refactors the layout of cloud
versus local logic, so that the cmd/ package is resonsible for CLI
things, and the new pkg/backend/ package is responsible for the
backends. The following is the overall resulting package architecture:
* The backend.Backend interface can be implemented to substitute
a new backend. This has operations to get and list stacks,
perform updates, and so on.
* The backend.Stack struct is a wrapper around a stack that has
or is being manipulated by a Backend. It resembles our existing
Stack notions in the engine, but carries additional metadata
about its source. Notably, it offers functions that allow
operations like updating and deleting on the Backend from which
it came.
* There is very little else in the pkg/backend/ package.
* A new package, pkg/backend/local/, encapsulates all local state
management for "fire and forget" scenarios. It simply implements
the above logic and contains anything specific to the local
experience.
* A peer package, pkg/backend/cloud/, encapsulates all logic
required for the cloud experience. This includes its subpackage
apitype/ which contains JSON schema descriptions required for
REST calls against the cloud backend. It also contains handy
functions to list which clouds we have authenticated with.
* A subpackage here, pkg/backend/state/, is not a provider at all.
Instead, it contains all of the state management functions that
are currently shared between local and cloud backends. This
includes configuration logic -- including encryption -- as well
as logic pertaining to which stacks are known to the workspace.
This addresses pulumi/pulumi#629 and pulumi/pulumi#494.
This change adds a new manifest section to the checkpoint files.
The existing time moves into it, and we add to it the version of
the Pulumi CLI that created it, along with the names, types, and
versions of all plugins used to generate the file. There is a
magic cookie that we also use during verification.
This is to help keep us sane when debugging problems "in the wild,"
and I'm sure we will add more to it over time (checksum, etc).
For example, after an up, you can now see this in `pulumi stack`:
```
Current stack is demo:
Last updated at 2017-12-01 13:48:49.815740523 -0800 PST
Pulumi version v0.8.3-79-g1ab99ad
Plugin pulumi-provider-aws [resource] version v0.8.3-22-g4363e77
Plugin pulumi-langhost-nodejs [language] version v0.8.3-79-g77bb6b6
Checkpoint file is /Users/joeduffy/dev/code/src/github.com/pulumi/pulumi-aws/.pulumi/stacks/webserver/demo.json
```
This addresses pulumi/pulumi#628.
This change introduces automatic integrity checking for snapshots.
Hopefully this will help us track down what's going on in
pulumi/pulumi#613. Eventually we probably want to make this opt-in,
or disable it entirely other than for internal Pulumi debugging, but
until we add more complete DAG verification, it's relatively cheap
and is worthwhile to leave on for now.
