Summary: Depends on D19830. Ref T13216. See PHI908. See PHI750. See PHI885. Allow users to configure a filesize limit, and allow them to adjust the clone/fetch timeout.
Test Plan:
{F6021356}
- Configured a filesize limit and pushed, hit it. Made the limit larger and pushed, change went through.
Reviewers: amckinley
Reviewed By: amckinley
Subscribers: yelirekim, PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13216
Differential Revision: https://secure.phabricator.com/D19831
Summary:
Depends on D19814. Ref T13216. See PHI885. For various eldritch reasons, `git fetch` can hang. Although we'd probably like to fix this with `git fetch --require-sustained-network-transfer-rate=512KB/5s` or similar, that flag doesn't exist and we don't have a reasonable way to build it.
Short of that, move toward formalizing a repository "copy time limit": the longest amount of time anything may spend trying to make a copy of this repository.
This grows out of the existing intracluster sync limit, which is effectively the same thing. Here, apply it to `git clone` and `git fetch` in Drydock working copy construction, too. A future change may make it configurable.
Test Plan:
- Set the limit to 0.001.
- Tried to build and lease working copies, got sensible timeout errors (see D19815).
```
<Activation Failed> Lease activation failed: [CommandException] Command killed by timeout after running for more than 0.001 seconds.
COMMAND
ssh '-o' 'LogLevel=quiet' '-o' 'StrictHostKeyChecking=no' '-o' 'UserKnownHostsFile=/dev/null' '-o' 'BatchMode=yes' -l '********' -p '2222' -i '********' '127.0.0.1' -- '(cd '\''/var/drydock/workingcopy-163/repo/spellbook/'\'' && git clean -d --force && git fetch && git reset --hard)'
```
Reviewers: amckinley
Reviewed By: amckinley
Subscribers: yelirekim, PHID-OPKG-gm6ozazyms6q6i22gyam
Maniphest Tasks: T13216
Differential Revision: https://secure.phabricator.com/D19816
Summary:
Ref T13108. See PHI364. See the task and issue for discussion.
If a `git fetch` during synchronization hangs, the whole node currently hangs. While the causes of a `git fetch` hang aren't clear, we don't expect synchronization to ever reasonably take more than 15 minutes, so add a default timeout.
Test Plan: Will deploy and observe; this is difficult to reproduce or test directly.
Maniphest Tasks: T13108
Differential Revision: https://secure.phabricator.com/D19235
Summary: Noticed a couple of typos in the docs, and then things got out of hand.
Test Plan:
- Stared at the words until my eyes watered and the letters began to swim on the screen.
- Consulted a dictionary.
Reviewers: #blessed_reviewers, epriestley
Reviewed By: #blessed_reviewers, epriestley
Subscribers: epriestley, yelirekim, PHID-OPKG-gm6ozazyms6q6i22gyam
Differential Revision: https://secure.phabricator.com/D18693
Summary:
Fixes T11940. In 2.11.0, Git has made a change so that newly-pushed changes are held in a temporary area until the hook accepts or rejects them.
This magic temporary area is only readable if the appropriate `GIT_ENVIRONMENTAL_MAGIC` variables are available. When executing `git` commands, pass them through from the calling context.
We're intentionally conservative about which variables we pass, and with good reason (see "httpoxy" in T11359). I think this continues to be the correct default behavior.
Test Plan:
- Upgraded to Git 2.11.0.
- Tried to push over SSH, got a hook error.
- Applied patch.
- Pulled and pushed over SSH.
- Pulled and pushed over HTTP.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T11940
Differential Revision: https://secure.phabricator.com/D16988
Summary: Ref T10227. When we perform `git` http operations (fetch, mirror) check if we should use a proxy; if we should, set `http_proxy` or `https_proxy` in the environment to make `git` have `curl` use it.
Test Plan:
- Configured a proxy extension to run stuff through a local instance of Charles.
- Ran `repository pull` and `repository mirror`.
- Saw `git` HTTP requests route through the proxy.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T10227
Differential Revision: https://secure.phabricator.com/D16092
Summary:
Ref T10748. Ref T10366. Allows users to set credential for new URIs.
- Ref T7221. Our handling of the "git://" protocol is currently incorrect. This protocol is not authenticated, but is considered an SSH protocol. In the new UI, it is considered an anonymous/unauthenticated protocol instead.
- Ref T10241. This fixes the `PassphraseCredentialControl` so it doesn't silently edit the value if the current value is not visible to you and/or not valid.
Test Plan:
Performed a whole lot of credential edits, removals, and adjustments. I'll give this additional vetting before cutting over to it.
{F1253207}
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T7221, T10241, T10366, T10748
Differential Revision: https://secure.phabricator.com/D15829
Summary:
Ref T4292. We currently synchronize hosted, clustered, Git repositories when we receive an SSH pull or push.
Additionally:
- Synchronize before HTTP reads and writes.
- Synchronize reads before Conduit requests.
We could relax Conduit eventually and allow Diffusion to say "it's OK to give me stale data".
We could also redirect some set of these actions to just go to the up-to-date host instead of connecting to a random host and synchronizing it. However, this potentially won't work as well at scale: if you have a larger number of servers, it sends all of the traffic to the leader immediately following a write. That can cause "thundering herd" issues, and isn't efficient if replicas are in different geographical regions and the write just went to the east coast but most clients are on the west coast. In large-scale cases, it's better to go to the local replica, wait for an update, then serve traffic from it -- particularly given that writes are relatively rare. But we can finesse this later once things are solid.
Test Plan:
- Pushed and pulled a Git repository over HTTP.
- Browsed a Git repository from the web UI.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T4292
Differential Revision: https://secure.phabricator.com/D15758
Summary:
Ref T4292. When you run `git fetch` and connect to, say, `repo001.west.company.com`, we'll look at the current version of the repository in other nodes in the cluster.
If `repo002.east.company.com` has a newer version of the repository, we'll fetch that version first, then respond to your request.
To do this, we need to run `git fetch repo002.east.company.com ...` and have that connect to the other host and be able to fetch data.
This change allows us to run `PHABRICATOR_AS_DEVICE=1 git fetch ...` to use device credentials to do this fetch. (Device credentials are already supported and used, they just always connect as a user right now, but these fetches should be doable without having a user. We will have a valid user when you run `git fetch` yourself, but we won't have one if the daemons notice that a repository is out of date and want to update it, so the update code should not depend on having a user.)
Test Plan:
```
$ PHABRICATOR_AS_DEVICE=1 ./bin/ssh-connect local.phacility.com
Warning: Permanently added 'local.phacility.com' (RSA) to the list of known hosts.
PTY allocation request failed on channel 0
phabricator-ssh-exec: Welcome to Phabricator.
You are logged in as device/daemon.phacility.net.
You haven't specified a command to run. This means you're requesting an interactive shell, but Phabricator does not provide an interactive shell over SSH.
Usually, you should run a command like `git clone` or `hg push` rather than connecting directly with SSH.
Supported commands are: conduit, git-lfs-authenticate, git-receive-pack, git-upload-pack, hg, svnserve.
Connection to local.phacility.com closed.
```
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T4292
Differential Revision: https://secure.phabricator.com/D15755
Summary:
Ref T4292. Ref T10366. Depends on D15751. Today, generating repository commands is purely a function of the repository, so they use protocols and credentials based on the repository configuration.
For example, a repository with an SSH "remote URI" always generate SSH "remote commands".
This needs to change in the future:
- After T10366, repositories won't necessarily just have one type of remote URI. They can only have one at a time still, but the repository itself won't change based on which one is currently active.
- For T4292, I need to generate intracluster commands, regardless of repository configuration. These will have different protocols and credentials.
Prepare for these cases by separating out command construction, so they'll be able to generate commands in a more flexible way.
Test Plan:
- Added unit tests.
- Browsed diffusion.
- Ran `bin/phd debug pull` to pull a bunch of repos.
- Ran daemons.
Reviewers: chad
Reviewed By: chad
Maniphest Tasks: T4292, T10366
Differential Revision: https://secure.phabricator.com/D15752
