* docs: update task leader to explain shutdown sequence.

When calculating a services namespace for registration, the code
assumed the first task within the task array would include a
service block. This is incorrect as it is possible only a latter
task within the array contains a service definition.

This change fixes the logic, so we correctly search for a service
definition before identifying the namespace.

Fix typo: orthogonal.

Signed-off-by: Shishir Mahajan <smahajan@roblox.com>

api: use testing.T.Setenv to set env vars in tests

deps: remove replace statement for go-textseg

tests: update testify dependency

feat: docker/docker/pkg/term has been deprecated in favor of moby/term

Signed-off-by: Yoan Blanc <yoan@dosimple.ch>

See https://github.com/moby/moby/pull/40825

Signed-off-by: Yoan Blanc <yoan@dosimple.ch>

* Shift meta off job.definition and decodedPayload alias to passed arg

* Changelog

core: remove support for raft protocol version 2

The plan applier has to get a snapshot with a minimum index for the
plan it's working on in order to ensure consistency. Under heavy raft
loads, we can exceed the timeout. When this happens, we hit a bug
where the plan applier blocks waiting on the `indexCh` forever, and
all schedulers will block in `Plan.Submit`.

Closing the `indexCh` when the `asyncPlanWait` is done with it will
prevent the deadlock without impacting correctness of the previous
snapshot index.

This changeset includes the a PoC failing test that works by injecting
a large timeout into the state store. We need to turn this into a test
we can run normally without breaking the state store before we can
merge this PR.

Increase `snapshotMinIndex` timeout to 10s.
This timeout creates backpressure where any concurrent `Plan.Submit`
RPCs will block waiting for results. This sheds load across all
servers and gives raft some CPU to catch up, because schedulers won't
dequeue more work while waiting. Increase it to 10s based on
observations of large production clusters.

This PR checks server config for raft_protocol, which must now
be set to 3 or unset (0). When unset, version 3 is used as the
default.

* csi_hook: valid if any driver supports csi volumes

Replace deprecated `template` block with `templatefile` function

Lob.com has been ramping up our use of Nomad for ~6 months.
Now that we've started blogging about it we'd love to be on the _official_ list.

Fix detach handling for:

- `deployment fail`
- `deployment promote`
- `deployment resume`
- `deployment unblock`
- `job promote`

CNI changed how to bring up the interface in v0.2.0.
Support was moved to a new loopback plugin.

https://github.com/containernetworking/cni/pull/121

Fixes #10014

Improve Autoscaler overview documentation.

Updates TLS documentation

* Return evalID if `-detach` flag is passed to job revert

The changelog entry for #13340 indicated it was an improvement. But on
discussion, it was determined that this was a workaround for a
regression. Update the changelog to make this clear.

In addition to jobs, there are other objects in Nomad that have a
specific format and can be provided to commands and API endpoints.

This commit creates a new menu section to hold the specification for
volumes and update the command pages to point to the new centralized
definition.

Redirecting the previous entries is not possible with `redirect.js`
because they are done server-side and URL fragments are not accessible
to detect a match. So we provide hidden anchors with a link to the new
page to guide users towards the new documentation.
Co-authored-by: Tim Gross <tgross@hashicorp.com>

These flags were not being used because GNUmakefile overwrites them with
another value. We also don't want to set `-s -w` since they remove
information that is important for production debug.

In other projects this variable is used to override the default `-dev`
prerelease that is set even if `VersionPrerelease` is empty, but in
Nomad this check is never actually done because this conditional in
`version/version.go` is always false:

```go
func GetVersion() *VersionInfo {
  // ...
  rel := VersionPrerelease
  // ...
  if GitDescribe == "" && rel == "" && VersionPrerelease != "" {
    rel = "dev"
  }
  // ...
}
```

This seems like some leftover from a previous release process, but I
decided the leave the code as is.

* website: fix redirects with fragments

Vercel redirects don't support fragments in relative destination paths,
so an absolute URL must be specified instead.

* website: fix Vercel redirect documentation link