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Author SHA1 Message Date
epriestley
2ef5b5321d Move Drydock logs to PHIDs and increased structure
Summary:
Ref T9252. Several general changes here:

  - Moves logs to use PHIDs instead of IDs. This generally improves flexibility (for example, it's a lot easier to render handles).
  - Adds `blueprintPHID` to logs. Although you can usually figure this out from the leasePHID or resourcePHID, it lets us query relevant logs on Blueprint views.
  - Instead of making logs a top-level object, make them strictly a sub-object of Blueprints, Resources and Leases. So you go Drydock > Lease > Logs, etc., to get to logs.
    - I might restore the "everything" view eventually, but it doesn't interact well with policies and I'm not sure it's very useful. A policy-violating `bin/drydock log` might be cleaner.
  - Policy-wise, we always show you that logs exist, we just don't show you log content if it's about something you can't see. This is similar to seeing restricted handles in other applications.
  - Instead of just having a message, give logs "type" + "data". This will let logs be more structured and translatable. This is similar to recent changes to Herald which seem to have worked well.

Test Plan:
Added some placeholder log writes, viewed those logs in the UI.

{F855199}

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9252

Differential Revision: https://secure.phabricator.com/D14196
2015-10-01 08:06:23 -07:00
epriestley
9b29d46e60 Make Drydock lease infrastructure more nimble
Summary:
Ref T9252. Currently, Harbormaster does this when trying to acquire a working copy:

  - Ask for a working copy.
  - Yield for 15 seconds.
  - Check if we have a working copy yet.

That's OK, but Drydock takes ~1s to acquire a working copy lease if a resource is already available, so we end up doing this:

  - T+0: Ask for a working copy.
  - T+0: Yield for 15 seconds.
  - T+1: Working copy lease activates.
  - T+15: Working copy lease is used.
  - T+16: Build finishes.

So we end up spending about 2 seconds doing work and 14 seconds sleeping.

One way to fix this would be to fiddle with the yield duration, so we yield for 1, 2, 4, ... seconds or something. This probably isn't a bad idea for longer leases (i.e., wait for 15, 30, 45 ... seconds or similar) but it implies a lot of churn for short leases.

Instead, let tasks "awaken" other tasks when they complete. The "awaken" operation means: if a task is in a yielded state (no failures, no owner, explicitly yielded, future expires time), pretend it only yielded until right now instead of whenever it really yielded to.

Basically, this rewrites history so that even though Harbormaster did a `yield(15)`, we pretend it did a `yield(4)` after we activate the lease if lease activation took 4 seconds.

If this misses, it's fine: we fall back to the normal yield behavior and things move forward normally a few seconds later.

If it hits, we get a more nimble process pretty cleanly.

Test Plan:
  - Restarted a build plan (lease working copy + run `ls`) with this patch no-op'd, took about 16 seconds.
  - Restarted a build plan with this patch active, took about 1 second.

Reviewers: hach-que, chad

Reviewed By: chad

Maniphest Tasks: T9252

Differential Revision: https://secure.phabricator.com/D14178
2015-09-28 09:35:40 -07:00
epriestley
cd2dd2a08f Give visual feedback when a Drydock resource or lease is releasing
Summary: Ref T9252. Show the user when a resource or lease has a pending release command in queue.

Test Plan: Released a resource and lease from the web UI. In both cases, saw a "releasing" tag and the action disable.

Reviewers: hach-que, chad

Reviewed By: chad

Maniphest Tasks: T9252

Differential Revision: https://secure.phabricator.com/D14177
2015-09-28 09:35:26 -07:00
epriestley
ec6d69e74d Give Drydock resources a proper expiry mechanism
Summary:
Fixes T6569. This implements an expiry mechanism for Drydock resources which parallels the mechanism for leases.

A few things are missing that we'll probably need in the future:

  - An "EXPIRES" command to update the expiration time. This would let resources be permanent while leased, then expire after, say, 24 hours without any leases.
  - A callback like `shouldActuallyExpireRightNow()` for resources and leases that lets them decide not to expire at the last second.
  - A callback like `didAcquireLease()` for resource blueprints, to parallel `didReleaseLease()`, letting them clear or extend their timer.

However, this stuff would mostly just let us tune behaviors, not really open up new capabilities.

Test Plan: Changed host resources to expire after 60 seconds, leased one, saw it vanish 60 seconds later.

Reviewers: hach-que, chad

Reviewed By: chad

Maniphest Tasks: T6569

Differential Revision: https://secure.phabricator.com/D14176
2015-09-28 09:35:14 -07:00
epriestley
284fe0fe51 Allow Harbormaster to lease working copies from Drydock
Summary: Ref T9252. This is still crude in a few ways but basically works, at least for commits.

Test Plan:
  - Made a build plan with just this build step.
  - Ran `bin/harbormaster build --plan 10 ...` on a commit.
  - It actually built a working copy, leased it, took no action, and released the lease. MAGIC~~~

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9252

Differential Revision: https://secure.phabricator.com/D14160
2015-09-24 17:29:47 -07:00
epriestley
e117ace8c7 Convert Drydock lease and resource constants to strings
Summary:
Ref T9252. Drydock currently uses integer statuses, but there's no reason for this (they don't need to be ordered) and it makes debugging them, working with them, future APIs, etc., more cumbersome.

Switch to string instead.

Also rename `STATUS_OPEN` to `STATUS_ACTIVE` and `STATUS_CLOSED` to `STATUS_RELEASED` for consistency. This makes resources and leases have more similar states, and gives resource states more accurate names.

Test Plan: Browsed web UI, grepped for changed constants, applied patch, inspected database.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9252

Differential Revision: https://secure.phabricator.com/D14153
2015-09-24 07:57:05 -07:00
epriestley
c6aade4392 Give Drydock leases a resourcePHID instead of a resourceID
Summary:
Ref T9252. Leases currently have a `resourceID`, but this is a bit nonstandard and generally less flexible than giving them a `resourcePHID`.

In particular, a `resourcePHID` is easier to use when rendering interfaces, since you can get handles out of a PHID.

Add a PHID column, copy over all the PHIDs that correspond to existing IDs, then drop the ID column.

Test Plan:
  - Browsed web UIs.
  - Inspected database during/after migration.
  - Grepped for `resourceID`.
  - Allocated a new lease with `bin/drydock lease`.

Reviewers: chad, hach-que

Reviewed By: hach-que

Maniphest Tasks: T9252

Differential Revision: https://secure.phabricator.com/D14151
2015-09-24 04:19:27 -07:00
epriestley
309aadc595 Rename Drydock Lease STATUS_EXPIRED to STATUS_DESTROYED
Summary: Ref T9252. This is now more consistent (same as the equivalent Resource state) and accurate (leases can end up in this state a bunch of ways, including by expiring).

Test Plan: `grep`, browsed around web UI.

Reviewers: chad

Reviewed By: chad

Maniphest Tasks: T9252

Differential Revision: https://secure.phabricator.com/D14150
2015-09-23 20:48:51 -07:00
epriestley
3379904237 Allow Drydock leases to expire after a time limit
Summary: Ref T6569. If a lease is activated with an expiration date, schedule a task to try to clean it up after that time.

Test Plan:
  - Used `bin/drydock lease ... --until ...` to activate a lease in the near future.
  - Waited for a bit.
  - Saw it expire and get destroyed at the scheduled time.

Reviewers: hach-que, chad

Reviewed By: chad

Maniphest Tasks: T6569

Differential Revision: https://secure.phabricator.com/D14148
2015-09-23 13:54:27 -07:00
epriestley
fcb6d1e2fa Strip some obsolete code out of Drydock
Summary:
Ref T9252. This simplifies some Drydock code.

Most of this code relates to the old notion of Drydock being able to enumerate all the tasks it needs to complete in order to acquire a lease. The code has stepped back from this, since it's unnecessary, the queue is more powerful than it used to be, and it would be a lot of work to keep track of.

The ~only thing that should ever wait for leases in modern code is `bin/drydock lease`, and it's fine for it to just sit there sleeping, so this just does that.

This reduces the granularity of logging, but I'll address that separately in future logging-focused changes.

Test Plan: Used `bin/drydock lease` to acquire a lease, saw it acquire cleanly.

Reviewers: hach-que, chad

Reviewed By: chad

Maniphest Tasks: T9252

Differential Revision: https://secure.phabricator.com/D14147
2015-09-23 13:21:41 -07:00
epriestley
789df89c84 Add a command queue to Drydock to manage lease/resource release
Summary:
Ref T9252. Broadly, Drydock currently races on releasing objects from the "active" state. To reproduce this:

  - Scatter some sleep()s pretty much anywhere in the release code.
  - Release several times from web UI or CLI in quick succession.

Resources or leases will execute some release code twice or otherwise do inconsistent things.

(I didn't chase down a detailed reproduction scenario for this since inspection of the code makes it clear that there are no meaningful locks or mechanisms preventing this.)

Instead, add a Harbormaster-style command queue to resources and leases. When something wants to do a release, it adds a command to the queue and schedules a worker. The workers acquire a lock, then try to consume commands from the queue.

This guarantees that only one process is responsible for writes to active resource/leases.

This is the last major step to giving resources and leases a single writer during all states:

  - Resource, Unsaved: AllocatorWorker
  - Resource, Pending: ResourceWorker (Possible rename to "Allocated?")
  - Resource, Open: This diff, ResourceUpdateWorker. (Likely rename to "Active").
  - Resource, Closed/Broken: Future destruction worker. (Likely rename to "Released" / "Broken"; maybe remove "Broken").
  - Resource, Destroyed: No writes.
  - Lease, Unsaved: Whatever wants the lease.
  - Lease, Pending: AllocatorWorker
  - Lease, Acquired: LeaseWorker
  - Lease, Active: This diff, LeaseUpdateWorker.
  - Lease, Released/Broken: Future destruction worker (Maybe remove "Broken"?)
  - Lease, Expired: No writes. (Likely rename to "Destroyed").

In most phases, we can already guarantee that there is a single writer without doing any extra work. This is more complicated in the "Active" case because the release buttons on the web UI, the release tools on the CLI, the lease requestor itself, the garbage collector, and any other release process cleaning up related objects may try to effect a release. All of these could race one another (and, in many cases, race other processes from other phases because all of these get to act immediately) as this code is currently written. Using a queue here lets us make sure there's only a single writer in this phase.

One thing which is notable is that whatever acquires a lease **can not write to it**! It is never the writer once it queues the lease for activation. It can not write to any resources, either. And, likewise, Blueprints can not write to resources while acquiring or releasing leases.

We may need to provide a mechinism so that blueprints and/or resource/lease holders get to attach some storage to resources/leases for bookkeeping. For example, a blueprint might need to keep some kind of cache on a resource to help it manage state. But I think we can cross that bridge when we come to it, and nothing else would need to write to this storage so it's technically straightforward to introduce such a mechanism if we need one.

Test Plan:
  - Viewed buttons in web UI, checked enabled/disabled states.
  - Clicked the buttons.
  - Saw commands show up in the command queue.
  - Saw some daemon stuff get scheduled.
  - Ran CLI tools, saw commands get consumed and resources/leases release.

Reviewers: hach-que, chad

Reviewed By: chad

Maniphest Tasks: T9252

Differential Revision: https://secure.phabricator.com/D14143
2015-09-23 07:42:08 -07:00
epriestley
f1119ffcf5 Support working copies and separate allocate + activate steps for resources/leases in Drydock
Summary:
Ref T9253. For resources and leases that need to do something which takes a lot of time or requires waiting, allow them to allocate/acquire first and then activate later.

When we allocate a resource or acquire a lease, the blueprint can either activate it immediately (if all the work can happen quickly/inline) or activate it later. If the blueprint activates it later, we queue a worker to handle activating it.

Rebuild the "working copy" blueprint to work with this model: it allocates/acquires and activates in a separate step, once it is able to acquire a host.

Test Plan: With some power of imagination, brought up a bunch of working copies with `bin/drydock lease --type working-copy ...`

Reviewers: hach-que, chad

Reviewed By: hach-que, chad

Maniphest Tasks: T9253

Differential Revision: https://secure.phabricator.com/D14127
2015-09-21 04:46:24 -07:00
epriestley
3ac99006bf Implement optimistic "slot locks" in Drydock
Summary:
See discussion in D10304. There's a lot of context there, but the general idea is:

  - Blueprints should manage locks in a granular way during the actual allocation/acquisition phase.
  - Optimistic "slot locks" might a pretty good primitive to make that easy to implement and reason about in most cases.

The way these locks work is that you just pick some name for the lock (like the PHID of a resource) and say that it needs to be acquired for the allocation/acquisition to work:

```
...
->needSlotLock("mylock(PHID-XYZQ-...)")
...
```

When you fire off the acquisition or allocation, it fails unless it could acquire the slot with that name. This is really simple (no explicit lock management) and a pretty good fit for most of the locking that blueprints and leases need to do.

If you need to do limit-based locks (e.g., maximum of 3 locks) you could acquire a lock like this:

```
mylock(whatever).slot(2)
```

Blueprints generally only contend with themselves, so it's normally OK for them to pick whatever strategy works best for them in naming locks.

This may not work as well if you have a huge number of slots (e.g., 100TB you want to give out in 1MB chunks), or other complex needs for locks (like you have to synchronize access to some external resource), but slot locks don't need to be the only mechanism that blueprints use. If they run into a problem that slot locks aren't a good fit for, they can use something else instead. For now, slot locks seem like a good fit for the problems we currently face and most of the problems I anticipate facing.

(The release workflows have other race issues which I'm not addressing here. They work fine if nothing races, but aren't race-safe.)

Test Plan:
To create a race where the same binding is allocated as a resource twice:

  - Add `sleep(10)` near the beginning of `allocateResource()`, after the free bindings are loaded but before resources are allocated.
  - (Comment out slot lock acquisition if you have this patch.)
  - Run `bin/drydock lease ...` in two windows, within 10 seconds of one another.

This will reliably double-allocate the binding because both blueprints see a view of the world where the binding is free.

To verify the lock works, un-comment it (or apply this patch) and run the same test again. Now, the lock fails in one process and only one resource is allocated.

Reviewers: hach-que, chad

Reviewed By: hach-que, chad

Differential Revision: https://secure.phabricator.com/D14118
2015-09-21 04:45:25 -07:00
epriestley
6e03419593 Implement a rough AlmanacService blueprint in Drydock
Summary:
Ref T9253. Broadly, this realigns Allocator behavior to be more consistent and straightforward and amenable to intended future changes.

This attempts to make language more consistent: resources are "allocated" and leases are "acquired".

This prepares for (but does not implement) optimistic "slot locking", as discussed in D10304. Although I suspect some blueprints will need to perform other locking eventually, this does feel like a good fit for most of the locking blueprints need to do.

In particular, I've made the blueprint operations on `$resource` and `$lease` objects more purposeful: they need to invoke an activator on the appropriate object to be implemented correctly. Before they invoke this activator method, they configure the object. In a future diff, this configuration will include specifying slot locks that the lease or resource must acquire. So the API will be something like:

  $lease
    ->setActivateWhenAcquired(true)
    ->needSlotLock('x')
    ->needSlotLock('y')
    ->acquireOnResource($resource);

In the common case where slot locks are a good fit, I think this should make correct blueprint implementation very straightforward.

This prepares for (but does not implement) resources and leases which need significant setup steps. I've basically carved out two modes:

  - The "activate immediately" mode, as here, immediately opens the resource or activates the lease. This is appropriate if little or no setup is required. I expect many leases to operate in this mode, although I expect many resources will operate in the other mode.
  - The "allocate now, activate later" mode, which is not fully implemented yet. This will queue setup workers when the allocator exits. Overall, this will work very similarly to Harbormaster.
  - This new structure makes it acceptable for blueprints to sleep as long as they want during resource allocation and lease acquisition, so long as they are not waiting on anything which needs to be completed by the queue. Putting a `sleep(15 * 60)` in your EC2Blueprint to wait for EC2 to bring a machine up will perform worse than using delayed activation, but won't deadlock the queue or block any locks.

Overall, this flow is more similar to Harbormaster's flow. Having consistency between Harbormaster's model and Drydock's model is good, and I think Harbormaster's model is also simply much better than Drydock's (what exists today in Drydock was implemented a long time ago, and we had more support and infrastructure by the time Harbormaster was implemented, as well as a more clearly defined problem).

The particular strength of Harbormaster is that objects always (or almost always, at least) have a single, clearly defined writer. Ensuring objects have only one writer prevents races and makes reasoning about everything easier.

Drydock does not currently have a clearly defined single writer, but this moves us in that direction. We'll probably need more primitives eventually to flesh this out, like Harbormaster's command queue for messaging objects which you can't write to.

This blueprint was originally implemented in D13843. This makes a few changes to the blueprint itself:

  - A bunch of code from that (e.g., interfaces) doesn't exist yet.
  - I let the blueprint have multiple services. This simplifies the code a little and seems like it costs us nothing.

This also removes `bin/drydock create-resource`, which no longer makes sense to expose. It won't get locking, leasing, etc., correct, and can not be made correct.

NOTE: This technically works but doesn't do anything useful yet.

Test Plan: Used `bin/drydock lease --type host` to acquire leases against these blueprints.

Reviewers: hach-que, chad

Reviewed By: hach-que, chad

Subscribers: Mnkras

Maniphest Tasks: T9253

Differential Revision: https://secure.phabricator.com/D14117
2015-09-21 04:43:53 -07:00
Joshua Spence
36e2d02d6e phtize all the things
Summary: `pht`ize a whole bunch of strings in rP.

Test Plan: Intense eyeballing.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: hach-que, Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D12797
2015-05-22 21:16:39 +10:00
Joshua Spence
acb45968d8 Use __CLASS__ instead of hard-coding class names
Summary: Use `__CLASS__` instead of hard-coding class names. Depends on D12605.

Test Plan: Eyeball it.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: hach-que, Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D12806
2015-05-14 07:21:13 +10:00
Joshua Spence
d6b882a804 Fix visiblity of LiskDAO::getConfiguration()
Summary: Ref T6822.

Test Plan: `grep`

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: hach-que, Korvin, epriestley

Maniphest Tasks: T6822

Differential Revision: https://secure.phabricator.com/D11370
2015-01-14 06:54:13 +11:00
epriestley
943c62d1e9 Add missing expected keys and uniqueness
Summary:
Ref T1191.

  - Adds definitions for missing keys and keys with wrong uniqueness. Generally, I defined these before fixing the key query to actually pull all keys and support uniqueness.
  - Moves "key uniqueness" to note severity; this is fixable (probably?) and there are no remaining issues.
  - Moves "Missing Key" to note severity; missing keys are fixable and all remaining missing keys are really missing (either missing edge keys, or missing PHID keys):

{F210089}

  - Moves "Surplus Key" to note seveirty; surplus keys are fixable all remaining surplus keys are really surplus (duplicate key in Harbormaster, key on unused column in Worker):

{F210090}

Test Plan:
  - Vetted missing/surplus/unique messages.
  - 146 issues remaining.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T1191

Differential Revision: https://secure.phabricator.com/D10590
2014-10-01 07:53:50 -07:00
epriestley
67fbfe6ccc Generate expected schemata for Doorkeeper, Draft, Drydock, Feed
Summary:
Ref T1191. Notable:

  - Allowed objects to remove default columns (some feed tables have no `id`).
  - Added a "note" severity and moved all the charset stuff down to that to make progress more clear.

Test Plan:
Trying to make the whole thing blue...

{F205970}

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T1191

Differential Revision: https://secure.phabricator.com/D10519
2014-09-18 11:15:49 -07:00
Joshua Spence
97a8700e45 Rename PHIDType classes
Summary: Ref T5655. Rename `PhabricatorPHIDType` subclasses for clarity (see discussion in D9839). I'm not too keen on some of the resulting class names, so feel free to suggest alternatives.

Test Plan: Ran unit tests.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: epriestley, Korvin, hach-que

Maniphest Tasks: T5655

Differential Revision: https://secure.phabricator.com/D9986
2014-07-24 08:05:46 +10:00
Joshua Spence
0a62f13464 Change double quotes to single quotes.
Summary: Ran `arc lint --apply-patches --everything` over rP, mainly to change double quotes to single quotes where appropriate. These changes also validate that the `ArcanistXHPASTLinter::LINT_DOUBLE_QUOTE` rule is working as expected.

Test Plan: Eyeballed it.

Reviewers: #blessed_reviewers, epriestley

Reviewed By: #blessed_reviewers, epriestley

Subscribers: epriestley, Korvin, hach-que

Differential Revision: https://secure.phabricator.com/D9431
2014-06-09 11:36:50 -07:00
epriestley
9b0fa5747b Make Drydock more broadly aware of policies
Summary:
Ref T2015. Moves a bunch of raw object loads into modern policy-aware queries.

Also straightens out the Log and Lease policies a little bit: there are legitimate states where these objects are not attached to a resource (particularly, while a lease is being acquired). Handle these more gracefully.

Test Plan: Lint / browsed stuff.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D7836
2013-12-27 13:15:19 -08:00
epriestley
1650874004 Modernize Drydock CLI management of task execution
Summary:
Ref T2015. Currently, Drydock has a `wait-for-lease` workflow which is invoked in the background by the `lease` workflow.

The goal of this mechanism is to allow `bin/drydock lease` to print out logs as the lease is acquired. However, this predates the `runAllTasksInProcess` flags, and they provide a simpler and more robust way (potentially with `--trace` and `PhutilConsole`) to do synchronous execution and debug logging.

Simplify this whole mechanism: just run everything in-process in `bin/drydock lease`, and do logging via `--trace`. We could thread a `PhutilConsole` through things too, but this seems good enough for now.

Also various cleanup/etc.

Test Plan: Ran `bin/drydock lease`. Ran `bin/harbormaster build X --plan Y`, for `Y` being a Drydock-dependent build plan.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D7835
2013-12-27 13:15:12 -08:00
epriestley
1a82743491 Make Drydock Lease and Resource PHIDs use newer PHID infrastructure
Summary:
Ref T2015. These never got updated to the new stuff, move them out of the old `Constants` class and let them load handles, etc.

Also some half-cleanup of some Blueprint/BlueprintImplementation stuff.

Test Plan: Used `phid.query` to query a Resource, Lease, and Blueprint.

Reviewers: btrahan

Reviewed By: btrahan

CC: hach-que, aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D7828
2013-12-26 12:29:58 -08:00
epriestley
6b2d480fe7 Make DrydockLease a policy-aware object
Summary: Ref T2015. DrydockLease predates widespread adoption of policies. Make it -- and its query -- policy aware.

Test Plan: Browsed leases from the web UI. Grepped for callsites.

Reviewers: btrahan

Reviewed By: btrahan

CC: hach-que, aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D7826
2013-12-26 10:41:36 -08:00
Gareth Evans
fcba0c74d9 Replace all "attach first..." exceptions with assertAttached()
Summary:
Ref T3599
Go through everything, grep a bit, replace some bits.

Test Plan: Navigate around a bit

Reviewers: epriestley

Reviewed By: epriestley

CC: Korvin, aran

Maniphest Tasks: T3599

Differential Revision: https://secure.phabricator.com/D6871
2013-09-03 06:02:14 -07:00
epriestley
53c1483ee5 Make most Drydock web interfaces work with mobile
Summary: The logs bits still need some work but add crumbs/lists to everything else. Also build a propery DrydockResourceQuery.

Test Plan: Looked at lease list/detail; resource list/detail.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D4221
2012-12-17 14:47:21 -08:00
epriestley
97045077c7 Show Drydock resource leases, add DrydockLeaseQuery, allow reuse of working copies
Summary: Minor updates to Drydock things to make them work better. In particular, after this patch working copies are correctly allocated or reused.

Test Plan: Ran "reparse.php --harbormaster <derp derp>", saw reuse of working copies when unleased resources were avilable.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D4216
2012-12-17 13:53:32 -08:00
epriestley
adfe84ffce Add HarbormasterRunnerWorker, for running CI tests
Summary:
This is very preliminary and doesn't actually do anything useful. In theory, it uses Drydock to check out a working copy and run tests. In practice, it's not actually capable of running any of our tests (because of complicated interdependency stuff), but does check out a working copy and //try// to run tests there.

Adds various sorts of utility methods to various things as well.

Test Plan: Ran `reparse.php --harbormaster --trace <commit>`, observed attempt to run tests via Drydock.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2015, T1049

Differential Revision: https://secure.phabricator.com/D4215
2012-12-17 13:43:26 -08:00
epriestley
cce5ebebe9 Improve Drydock's ability to allocate leases correctly
Summary:
Right now, Drydock gives out multiple leases to the same working copy and gives out leases to working copies with repository "P" in them when the user requested some other repository.

Add two callbacks:

  - `canAllocateLease()` - allows a blueprint to reject a lease on a resource because of a fundamental incompatibility, like "it's a working copy with Phabricator in it, but the lease wants a working copy with Javelin in it".
  - `shouldAllocateLease()` - allows a blueprint to reject a lease on a resource because of resource limits, like "only one active lease can own a working copy at a time".

Also cleaned up various other things.

Test Plan:
After implementing the callbacks, Drydock has the correct behavior:

  - It gives multiple leases on `localhost`, but only one lease per working-copy resource.
  - It does not grant leases on resources with repository X to requests for repository Y.

Ran `bin/drydock lease --type working-copy --repositoryID 12` and similar repeatedly and verified results in the web console.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D4166
2012-12-12 18:42:12 -08:00
epriestley
150f711cc8 Make drydock case sensitive in attribute parsing
Summary: See D4047. Get rid of this strtolower() junk.

Test Plan:
```
$ /bin/drydock lease --type working-copy --attributes repositoryID=12
Acquired Lease 66
```

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D4048
2012-11-29 06:05:35 -08:00
epriestley
b04114f95c Allow Drydock to allocate (very basic) working copy resources
Summary: This is missing a lot of features, but technically allows working copy allocation.

Test Plan: Ran `drydock lease --type working-copy --attributes repositoryID=12`, got a working copy of Phabricator allocated on disk.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D3999
2012-11-27 12:48:14 -08:00
epriestley
7e0ce08154 Make various Drydock CLI/Allocator improvements
Summary:
  - Remove EC2, RemoteHost, Application, etc., blueprints for now. They're very proof-of-concept and Blueprints are getting API changes I don't want to bother propagating for now. Leave the abstract base class and the LocalHost blueprint. I'll restore the more complicated ones once better foundations are in place.
  - Remove the Allocate controller from the web UI. The original vision here was that you'd manually allocate resources in some cases, but it no longer makes sense to do so as all allocations come from leases now. This simplifies allocations and makes the rule for when we can clean up resources clear-cut (if a resource has no more active leases, it can be cleaned up). Instead, we'll build resources like the localhost and remote hosts lazily, when leases come in for them.
  - Add some configuration to manage the localhost blueprint.
  - Refactor `canAllocateResources()` into `isEnabled()` (for config checks) and `canAllocateMoreResources()` (for quota checks, e.g. too many resources are allocated already).
  - Juggle some signatures to align better with a world where blueprints generally do allocate.
  - Add some more logging and error handling.
  - Fix an issue with log ordering.

Test Plan: Allocated some localhost leases.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D3902
2012-11-06 15:30:11 -08:00
vrana
ef85f49adc Delete license headers from files
Summary:
This commit doesn't change license of any file. It just makes the license implicit (inherited from LICENSE file in the root directory).

We are removing the headers for these reasons:

- It wastes space in editors, less code is visible in editor upon opening a file.
- It brings noise to diff of the first change of any file every year.
- It confuses Git file copy detection when creating small files.
- We don't have an explicit license header in other files (JS, CSS, images, documentation).
- Using license header in every file is not obligatory: http://www.apache.org/dev/apply-license.html#new.

This change is approved by Alma Chao (Lead Open Source and IP Counsel at Facebook).

Test Plan: Verified that the license survived only in LICENSE file and that it didn't modify externals.

Reviewers: epriestley, davidrecordon

Reviewed By: epriestley

CC: aran, Korvin

Maniphest Tasks: T2035

Differential Revision: https://secure.phabricator.com/D3886
2012-11-05 11:16:51 -08:00
epriestley
89b37f0357 Make various Drydock improvements
Summary:
Tightens up a bunch of stuff:

  - In `drydock lease`, pull and print logs so the user can see what's happening.
  - Remove `DrydockAllocator`, which was a dumb class that did nothing. Move the tiny amount of logic it held directly to `DrydockLease`.
  - Move `resourceType` from worker task metadata directly to `DrydockLease`. Other things (like the web UI) can be more informative with this information available.
  - Pass leases to `allocateResource()`. We always allocate in response to a lease activation request, and the lease often has vital information. This also allows us to associate logs with leases correctly.

Test Plan: Ran `drydock lease --type host` and saw it perform a host allocation in EC2.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D3870
2012-11-01 16:53:17 -07:00
epriestley
f0fdcf1a51 Undumb the Drydock resource allocator pipeline
Summary:
This was the major goal of D3859/D3855, and to a lesser degree D3854/D3852.

As Drydock is allocating a resource, it may need to allocate other resources first. For example, if it's allocating a working copy, it may need to allocate a host first.

Currently, we have the process basically queue up the allocation (insert a task into the queue) and sleep() until it finishes. This is problematic for a bunch of reasons, but the major one is that if allocation takes more resources (host, port, machine, DNS) than you have daemons, they could all end up sleeping and waiting for some other daemon to do their work. This is really stupid. Even if you only take up some of them, you're spending slots sleeping when you could be doing useful work.

To partially get around this and make the CLI experience less dumb, there's this goofy `synchronous` flag that gets passed around everywhere and pushes the workflow through a pile of special cases. Basically the `synchronous` flag causes us to do everything in-process. But this is dumb too because we'd rather do things in parallel if we can, and we have to have a lot of special case code to make it work at all.

Get rid of all of this. Instead of sleep()ing, try to work on the tasks that need to be worked on. If another daemon grabbed them already that's fine, but in the worst case we just gracefully degrade and do everything in process. So we get the best of both worlds: if we have parallelizable tasks and free daemons, things will execute in parallel. If we have nonparallelizable tasks or no free daemons, things will execute in process.

Test Plan: Ran `drydock_control.php --trace` and saw it perform cascading allocations without sleeping or special casing.

Reviewers: btrahan

Reviewed By: btrahan

CC: aran

Maniphest Tasks: T2015

Differential Revision: https://secure.phabricator.com/D3861
2012-11-01 11:30:42 -07:00
vrana
6cc196a2e5 Move files in Phabricator one level up
Summary:
- `kill_init.php` said "Moving 1000 files" - I hope that this is not some limit in `FileFinder`.
- [src/infrastructure/celerity] `git mv utils.php map.php; git mv api/utils.php api.php`
- Comment `phutil_libraries` in `.arcconfig` and run `arc liberate`.

NOTE: `arc diff` timed out so I'm pushing it without review.

Test Plan:
/D1234
Browsed around, especially in `applications/repository/worker/commitchangeparser` and `applications/` in general.

Auditors: epriestley

Maniphest Tasks: T1103
2012-06-01 12:32:44 -07:00
Renamed from src/applications/drydock/storage/lease/DrydockLease.php (Browse further)