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
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
Summary: Add a bin/drydock symlink and break it into workflows. Nothing too special here.
Test Plan: Ran `bin/drydock wait-for-lease`, `bin/drydock lease`, `bin/drydock help`, etc.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2015
Differential Revision: https://secure.phabricator.com/D3867
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
Summary:
Currently, when taskmasters complete a task it is immediately deleted. This prevents us from doing some general things, like:
- Supporting the idea of permanent failure (e.g., after N failures just stop trying).
- Showing the user how fast taskmasters are completing tasks.
- Showing the user how long tasks took to complete.
Having better visibility into this is important to Drydock, which builds on the task system. Also, generally buff debug output for task execution.
Test Plan: Ran `bin/phd debug taskmaster`. Ran `bin/phd debug garbage`. Queued some tasks via various systems.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Maniphest Tasks: T2015
Differential Revision: https://secure.phabricator.com/D3852
Summary: Add an Application class for Drydock and move routing rules there.
Test Plan: Looked at /applications/, clicked around drydock.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D3847
Summary:
I've replaced all `id(new PhabricatorObjectHandleData(...))->loadHandles()` by `$this->loadViewerHandles(...)`.
Lint caught one usage in a static method.
Test Plan: Displayed revision with sporadic author.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D3432
Summary:
- Add getHelpURI() to PhabricatorApplication for application user guides.
- Add a new "help" icon menu item and skeletal Diviner application.
- Move help tabs to Applications where they exist, document the other ones that don't exist yet.
- Grep for all tab-related stuff and delete it.
Test Plan: Clicked "help" for some apps. Clicked around randomly in a bunch of other apps.
Reviewers: btrahan, vrana
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D3267
Summary:
I'm trying to make progress on the policy/visibility stuff since it's a blocker for Wikimedia.
First, I want to improve Projects so they can serve as policy groups (e.g., an object can have a visibility policy like "Visible to: members of project 'security'"). However, doing this without breaking anything or snowballing into a bigger change is a bit awkward because Projects are name-ordered and we have a Conduit API which does offset paging. Rather than breaking or rewriting this stuff, I want to just continue offset paging them for now.
So I'm going to make PhabricatorPolicyQuery extend PhabricatorOffsetPagedQuery, but can't currently since the `executeWithPager` methods would clash. These methods do different things anyway and are probably better with different names.
This also generally improves the names of these classes, since cursors are not necessarily IDs (in the feed case, they're "chronlogicalKeys", for example). I did leave some of the interals as "ID" since calling them "Cursor"s (e.g., `setAfterCursor()`) seemed a little wrong -- it should maybe be `setAfterCursorPosition()`. These APIs have very limited use and can easily be made more consistent later.
Test Plan: Browsed around various affected tools; any issues here should throw/fail in a loud/obvious way.
Reviewers: vrana, btrahan
Reviewed By: vrana
CC: aran
Maniphest Tasks: T603
Differential Revision: https://secure.phabricator.com/D3177
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
Summary:
- Still really really rough.
- Adds a full synchronous mode for debugging.
- Adds some logging.
- It can now allocate EC2 machines and put webroots on them in a hacky, terrible way.
- Adds a base query class.
Test Plan: oh hey look a test page? http://ec2-50-18-65-151.us-west-1.compute.amazonaws.com:2011/
Reviewers: btrahan
Reviewed By: btrahan
CC: aran, epriestley
Maniphest Tasks: T1049
Differential Revision: https://secure.phabricator.com/D2026
Summary: No big surprises here, delted the unused "DarkConsole" class.
Test Plan: Ran 'testEverythingImplemented' to verify I wasn't finalizing anything we extend.
Reviewers: btrahan
Reviewed By: btrahan
CC: aran, epriestley
Maniphest Tasks: T795
Differential Revision: https://secure.phabricator.com/D1876
Summary: We currently allow you to launch abstract daemons; use
setConcreteOnly() to only list/launch concrete daemons.
Test Plan: Ran "phd list" (no abstract daemons listed), "phd launch
PhabricatorRepositoryCommitDiscoveryDaemon" (reasonable error message).
Reviewers: btrahan, jungejason
Reviewed By: btrahan
CC: aran, epriestley
Maniphest Tasks: T801
Differential Revision: https://secure.phabricator.com/D1487
Summary: Run the actual resource allocation for Drydock out-of-process via the
task queue.
Test Plan: Ran "drydock_control.php", saw it insert a task and wait for task
completion. Ran "phd debug taskmaster" and saw it run the task.
Reviewers: btrahan, jungejason
Reviewed By: btrahan
CC: aran, epriestley
Differential Revision: https://secure.phabricator.com/D1470
Summary:
Rough cut of Drydock. This is very basic and doesn't do much of use yet (it
//does// allocate EC2 machines as host resources and expose interfaces to them),
but I think the overall structure is more or less reasonable.
== Interfaces
Vision: Applications interact with Drydock resources through DrydockInterfaces,
like **command**, **filesystem** and **httpd** interfaces. Each interface allows
applications to perform some kind of operation on the resource, like executing
commands, reading/writing files, or configuring a web server. Interfaces have a
concrete, specific API:
// Filesystem Interface
$fs = $lease->getInterface('filesystem'); // Constants, some day?
$fs->writeFile('index.html', 'hello world!');
// Command Interface
$cmd = $lease->getInterface('command');
echo $cmd->execx('uptime');
// HTTPD Interface
$httpd = $lease->getInterface('httpd');
$httpd->restart();
Interfaces are mostly just stock, although installs might add new interfaces if
they expose different ways to interact with resources (for instance, a resource
might want to expose a new 'MongoDB' interface or whatever).
Currently: We have like part of a command interface.
== Leases
Vision: Leases keep track of which resources are in use, and what they're being
used for. They allow us to know when we need to allocate more resources (too
many sandcastles on the existing hosts, e.g.) and when we can release resources
(because they are no longer being used). They also give applications something
to hold while resources are being allocated.
// EXAMPLE: How this should work some day.
$allocator = new DrydockAllocator();
$allocator->setResourceType('sandcastle');
$allocator->setAttributes(
array(
'diffID' => $diff->getID(),
));
$lease = $allocator->allocate();
$diff->setSandcastleLeaseID($lease->getID());
// ...
if ($lease->getStatus() == DrydockLeaseStatus::STATUS_ACTIVE) {
$sandcastle_link = $lease->getInterface('httpd')->getURI('/');
} else {
$sandcastle_link = 'Still building your sandcastle...';
}
echo "Sandcastle for this diff: ".$sandcastle_link;
// EXAMPLE: How this actually works now.
$allocator = new DrydockAllocator();
$allocator->setResourceType('host');
// NOTE: Allocation is currently synchronous but will be task-driven soon.
$lease = $allocator->allocate();
Leases are completely stock, installs will not define new lease types.
Currently: Leases exist and work but are very very basic.
== Resources
Vision: Resources represent some actual thing we've put somewhere, whether it's
a host, a block of storage, a webroot, or whatever else. Applications interact
through resources by acquiring leases to them, and then getting interfaces
through these leases. The lease acquisition process has a side effect of
allocating new resources if a lease can't be acquired on existing resources
(e.g., the application wants storage but all storage resources are full) and
things are configured to autoscale.
Resources may themselves acquire leases in order to allocate. For instance, a
storage resource might first acquire a lease to a host resource. A 'test
scaffold' resource might lease a storage resource and a mysql resource.
Not all resources are auto-allocate: the entry-level version of Drydock is that
you manually allocate a couple boxes and configure them through the web console.
Then, e.g., 'storage' / 'webroot' resources allocate on top of them, but the
host pool itself does not autoscale.
Resources are completely stock, they are abstract shells representing any
arbitrary thing.
Currently: Resource exist ('host' only) but are very very basic.
== Blueprints
Vision: Blueprints contain instructions for building interfaces to, (possibly)
allocating, updating, managing, and destroying a specific type of resource in a
specific location. One way to think of them is that they are scripts for
creating and deleting resources. For example, the LocalHost, RemoteHost and
EC2Host blueprints can all manage 'host' resources.
Eventually, we will support more types of resources (storage, webroot,
sandcastle, test scaffold, phacility deployment) and more providers for resource
types, some of which will be in the Phabricator mainline and some of which will
be custom.
Blueprints are very custom and specific to application types, so installs will
define new blueprints if they are making significant use of Drydock.
Currently: They exist but have few capabilities. The stock blueprints do nearly
nothing useful. There is a technically functional blueprint for host allocation
in EC2.
== Allocator
This is just the actual code to execute the lease acquisition process.
Test Plan: Ran "drydock_control.php" script, it allocated a machine in EC2,
acquired a lease on it, interfaced with it, and then released the lease. Ran it
again, got a fresh lease on the existing resource.
Reviewers: btrahan, jungejason
Reviewed By: btrahan
CC: aran
Differential Revision: https://secure.phabricator.com/D1454
