Some Element Call setup resources say that `/.well-known/element/element.json` should be served on the base domain
and should contain content like this:

```json
{
	"call": {
		"widget_url": "https://call.element.example.com"
	}
}
```

We were already generating the file via `matrix-static-files`, but weren't serving it yet.

This patch makes sure it's served on the `matrix.` domain, which allows
people to set up serving on the base domain via a redirect or reverse-proxying.

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3562

`group_vars/matrix_servers` was correctly populating `matrix_static_files_file_matrix_client_property_org_matrix_msc4143_rtc_foci_auto` with a list, but:

- the defaults for these variables were hinting that hashmaps are necessary

- merging of `_auto` and `_custom` was done as if for hashmaps, not lists

As a result, `/.well-known/matrix/client` looked like this:

```json
{
	"org.matrix.msc4143.rtc_foci": {
		"livekit_service_url": "https://matrix.example.com/livekit-jwt-service",
		"type": "livekit"
	}
}
```

.. instead of what's expected as per MSC4143 (https://github.com/matrix-org/matrix-spec-proposals/pull/4143):

```json
{
	"org.matrix.msc4143.rtc_foci": [
		{
			"livekit_service_url": "https://matrix.example.com/livekit-jwt-service",
			"type": "livekit"
		}
	]
}
```

Regardless of our incorrectly formatted `org.matrix.msc4143.rtc_foci`
configuration in `/.well-known/matrix/client`, Element Web still seemed
to be able to discover LiveKit JWT Service (and by extension, LiveKit Server) correctly,
even without this fix.

This change intends to explain how ensure-matrix-users-created and ensure-users-created are expected to work by default.

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3389

* Enable Internal Admin API Access separately from Public access.

* Add Config variable for Draupnir Hijack command

And also make the internal admin API be automatically  activated when this capability is used.

* Apply suggestions from code review

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

* Further Refine Internal Admin API

* Add Non Worker Labels for Internal Admin API

* Variable Rename

* Add validation rules for Internal Synapse admin API

* Add Draupnir Admin API required config validation.

* Override `matrix_synapse_reverse_proxy_companion_container_labels_internal_client_synapse_admin_api_traefik_entrypoints` via group vars

* Wire `matrix_bot_draupnir_admin_api_enabled` to `matrix_bot_draupnir_config_admin_enableMakeRoomAdminCommand` in Draupnir's `defaults/main.yml`

* Remove unnecessary `matrix_bot_draupnir_admin_api_enabled` override from `group_vars/matrix_servers`

The same value is now (more appropriately) defined in Draupnir's `defaults/main.yml` file anyway.

* Add additional condition (`matrix_bot_draupnir_enabled`) for enabling `matrix_synapse_container_labels_internal_client_synapse_admin_api_enabled`

* Use a separate task for validating `matrix_bot_draupnir_admin_api_enabled` when `matrix_bot_draupnir_config_admin_enableMakeRoomAdminCommand`

The other task deals with checking for null and not-blank and can't handle booleans properly.

---------

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

This is an initial implementaton that's hasn't been battle-tested much.

Our LiveKit Server setup by default doesn't enable TURN, so connectivity
for NAT-ed clients may be subpar.

Squashed commit of the following:

commit d5c24fcafe
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Mar 15 08:31:48 2025 +0200

    Upgrade LiveKit Server (v1.8.4-1 -> v1.8.4-2)

commit 4d61cc571b
Merge: 9c24064fb 9a231a815
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Mar 15 08:19:05 2025 +0200

    Merge branch 'master' into element-call-integration

commit 9c24064fb6
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Mar 15 08:14:49 2025 +0200

    Make Element Call fail during validation if on an unsupported architecture (like arm32)

commit a757b515fb
Merge: ba9cedbed 2a6b746ac
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Mar 15 08:11:16 2025 +0200

    Merge branch 'master' into element-call-integration

commit ba9cedbeda
Merge: 4a638c2df f8f7ffc7d
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Mar 15 08:03:03 2025 +0200

    Merge branch 'master' into element-call-integration

commit 4a638c2df3
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Mar 15 07:52:04 2025 +0200

    Prepare Element Call announcement text on the changelog

commit 155d5dad38
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Mar 15 07:49:49 2025 +0200

    Mention the compatible clients on Element Call docs, more cross-linking & consistency fixes

commit 6b8a3fc891
Merge: 3ea1ea2f3 95dcaf6e2
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Mar 15 07:38:02 2025 +0200

    Merge branch 'master' into element-call-integration

commit 3ea1ea2f34
Merge: d3913a015 60e2e035a
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Fri Mar 14 22:29:14 2025 +0200

    Merge branch 'master' into element-call-integration

commit d3913a015e
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Fri Mar 14 20:04:18 2025 +0200

    Upgrade LiveKit Server (v1.8.4-0 -> v1.8.4-1)

commit ac7f96806d
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Fri Mar 14 19:58:09 2025 +0200

    Relocate the livekit-server Ansible role to its own repository in the MASH organization

commit b8d800f6ef
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Fri Mar 14 19:37:29 2025 +0200

    Add "Federation" as a prerequisite for Element Call (indirect, via LiveKit JWT Service)

    Ref:
    - https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3562#issuecomment-2725250554
    - f5f5374c4b/main.go (L135-L146)

commit 2c1c49444a
Merge: 6bc0185d5 8e883a555
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Fri Mar 14 19:32:48 2025 +0200

    Merge branch 'master' into element-call-integration

commit 6bc0185d50
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Mar 13 09:43:22 2025 +0200

    Add Element Call, LiveKit Server and LiveKit JWT Service to `README.md`

    Ref: https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3562#issuecomment-2720039742

commit a0470fe248
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 19:12:30 2025 +0200

    Minor rewording in LiveKit Server docs

commit d4ceebc6a9
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 19:12:22 2025 +0200

    Add Element Call, LiveKit Server and LiveKit JWT Service to `docs/container-images.md`

commit 6a86de958f
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 19:05:51 2025 +0200

    Apply suggestions from code review

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit d9df022d55
Merge: 676f9dd9a 2f30886b1
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 18:40:31 2025 +0200

    Merge branch 'master' into element-call-integration

commit 676f9dd9ad
Merge: 251561ff8 2be709e2c
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 18:00:45 2025 +0200

    Merge branch 'master' into element-call-integration

commit 251561ff81
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 17:47:01 2025 +0200

    Simplify LiveKit Server role by removing unused/untested HTTP middleware variables

commit 1e60f41a59
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 17:44:00 2025 +0200

    Restore Element Call HTTP headers to more secure/privacy-respecting values

commit f8e84c4b2f
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 17:43:34 2025 +0200

    Remove useless `matrix_element_call_port` variable

commit 3f5e8f656b
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 17:35:30 2025 +0200

    Switch default LiveKit server endpoint to one under the `matrix.` domain and polish-up docs

commit 72118f2f03
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 16:56:06 2025 +0200

    Fix LiveKitServer middlware name (`matrix-livekit-server-server-slashless-redirect` -> `matrix-livekit-server-slashless-redirect`)

commit 585377975b
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 16:51:10 2025 +0200

    Adjust LiveKit Server ports and exposure

commit 22ef579444
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 15:44:31 2025 +0200

    Make livekit-jwt-service communicate with livekit-server via public URLs

    Communicating via container URLs works, but the URL provided to
    livekit-jwt-service as `LIVEKIT_URL` is also passed to the user later
    and it must be a public one at that point.

    It'd be great if livekit-jwt-service can be given 2 different URLs
    (e.g. `LIVEKIT_URL` and `LIVEKIT_URL_PUBLIC`) and only announce the
    public one to the user, but there's no support for this yet.

commit 32f8c6de6e
Merge: 370feb740 79cc333be
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 15:27:42 2025 +0200

    Merge branch 'master' into element-call-integration

commit 370feb740f
Merge: 9a11e5e1f a9ee537f8
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 10:04:19 2025 +0200

    Merge branch 'master' into element-call-integration

commit 9a11e5e1fe
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 09:19:03 2025 +0200

    Auto-enable experimental Synapse features required by Element Call when Element Call is enabled

commit 8291b2f99d
Merge: 890f10f76 c5a03efdf
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 09:14:50 2025 +0200

    Merge branch 'master' into element-call-integration

commit 890f10f765
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 09:01:35 2025 +0200

    Make `matrix_livekit_jwt_service_public_url` respect `matrix_livekit_jwt_service_path_prefix`

commit 031cf68cbb
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 08:59:50 2025 +0200

    Remove unused `matrix_element_call_metrics_*` variables

commit 5961841e52
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 08:59:05 2025 +0200

    Make matrix-livekit-jwt-service role not reference foreign variables (except the matrix-base ones)

commit 2be4923aef
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 08:56:15 2025 +0200

    Make Element Call role not reference foreign variables (except the matrix-base ones)

commit 23efad9cb7
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 08:51:52 2025 +0200

    Rework Element Call config.json templating

commit 6b55ba29ab
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 08:46:11 2025 +0200

    Make Element Call refuse a path prefix other than `/`

commit 0d1112638d
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 08:05:42 2025 +0200

    Update LiveKit JWT service path prefix (`/lk-jwt-service` -> `/livekit-jwt-service`)

commit c3c2ba34b4
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 08:02:29 2025 +0200

    Split `matrix_element_call_systemd_required_services_list` into `_default`, `_auto` and `_custom`

commit 0215708f79
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 08:00:28 2025 +0200

    Remove some useless variables and rework environment variables variable for livekit-jwt-service

commit e1b57f3d45
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 07:56:47 2025 +0200

    Pin livekit-jwt-service to released (v0.2.0) and adapt configuration

commit de2a8f11d2
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 07:46:51 2025 +0200

    `_name_prefix` -> `_registry_prefix` changes for LiveKit roles

commit 2a69ca35be
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 07:42:40 2025 +0200

    Clean up Element Call group vars vs defaults/main.yml mixup and make some minor LiveKit updates

commit 72d64cfa6b
Merge: f161c7c58 5dfbefd64
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 07:03:53 2025 +0200

    Merge branch 'master' into element-call-integration

commit f161c7c58f
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 07:03:00 2025 +0200

    Add newlines at end of files

commit 6c6b44dc25
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 06:58:00 2025 +0200

    Add license information to Element Call and LiveKit roles

commit 8eb1c57e2b
Merge: 61069d631 aa36acdef
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 06:36:48 2025 +0200

    Merge branch 'master' into element-call-integration

commit 61069d6313
Merge: 74d6a99b1 0b9389fd6
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 06:34:00 2025 +0200

    Merge branch 'element-call-integration' of github.com:wjbeckett/matrix-docker-ansible-deploy into element-call-integration

commit 74d6a99b1e
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 06:32:22 2025 +0200

    Adjust names for Element Call tasks and make uninstallation more consistent with other roles

commit 81a30f17ac
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 06:29:39 2025 +0200

    Remove some superficial comments

commit 413d591562
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 06:27:11 2025 +0200

    Bring container-network-creation tasks up-to-date for Element Call and LiveKit-related services

commit 7572522820
Merge: 564275527 5ece1fea5
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Wed Mar 12 06:24:34 2025 +0200

    Merge branch 'master' into element-call-integration

commit 0b9389fd64
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Nov 23 17:43:52 2024 +0200

    Update docs/configuring-playbook-livekit-server.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 9a8a569431
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Nov 23 17:43:29 2024 +0200

    Update docs/configuring-playbook-element-call.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit bb403e1aee
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Nov 23 17:43:15 2024 +0200

    Update docs/configuring-playbook-jwt-service.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 74fbacbd9f
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Nov 23 17:42:54 2024 +0200

    Update docs/configuring-playbook-element-call.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 5642755273
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Nov 23 16:40:50 2024 +0200

    Rework LiveKit JWT Service role

commit bb925f4782
Merge: c57d0d192 ca8c1cf2b
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sat Nov 23 14:45:20 2024 +0200

    Merge branch 'master' into element-call-integration

commit c57d0d192d
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 19:45:07 2024 +0200

    Eliminate remaining matrix references from LiveKit Server role

commit 006920882c
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 19:38:23 2024 +0200

    Rename file (element-call-labels -> labels)

commit 69d702643f
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 19:36:55 2024 +0200

    Remove homeserver.yaml patching from Element Call role

commit 252ca52f60
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 19:32:15 2024 +0200

    Relocate /.well-known/element/element.json setup to matrix-static-files, instead of ugly patching from the Element Call role

commit 3f52cec25c
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 19:17:30 2024 +0200

    Relocate Element Web features & element_call configuration to Element role, instead of ugly patching from the Element Call role

commit 7a6fcaa402
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 18:59:11 2024 +0200

    Fix typo

commit 394fdca066
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 18:54:29 2024 +0200

    Relocate org.matrix.msc4143.rtc_foci setup to /.well-known/matrix/client to matrix-static-files instead of ugly patching

commit f0466d5a99
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 18:19:36 2024 +0200

    Make LiveKit Server configuration extensible

commit be7271760e
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 18:13:07 2024 +0200

    Make LiveKit Server logging config configurable

commit 8b84eb6390
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 18:04:53 2024 +0200

    Default LiveKit Server to a smaller RTC range for faster startup on non-host networks

commit 3e86adac0d
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 18:00:43 2024 +0200

    Fix port exposure for LiveKit Server

commit 721fb39aa2
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 17:28:06 2024 +0200

    More progress on the LiveKit role

commit 783d4a23f8
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:54:45 2024 +0200

    Add livekit_server_identifier

commit fa4ebd2a64
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:37:01 2024 +0200

    Cleanups

commit 79ae704a24
Merge: 88d466845 c07b09390
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:31:50 2024 +0200

    Merge branch 'element-call-integration' of github.com:wjbeckett/matrix-docker-ansible-deploy into element-call-integration

commit c07b093902
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:24:34 2024 +0200

    Update docs/configuring-playbook-livekit-server.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit c321ca160e
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:24:26 2024 +0200

    Update docs/configuring-playbook-livekit-server.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 164be875b0
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:24:15 2024 +0200

    Update docs/configuring-playbook-livekit-server.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 0f23e36e12
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:24:05 2024 +0200

    Update docs/configuring-playbook-livekit-server.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 83bb546c64
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:23:55 2024 +0200

    Update docs/configuring-playbook-livekit-server.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 3783922275
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:23:47 2024 +0200

    Update docs/configuring-playbook-livekit-server.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 66cc36466c
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:23:36 2024 +0200

    Update docs/configuring-playbook-livekit-server.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit ec41c1aba5
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:23:28 2024 +0200

    Update docs/configuring-playbook-jwt-service.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit df6ef106d1
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:23:18 2024 +0200

    Update docs/configuring-playbook-jwt-service.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit eb048da8a1
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:23:06 2024 +0200

    Update docs/configuring-playbook-jwt-service.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit ccb29beb30
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:22:56 2024 +0200

    Update docs/configuring-playbook-jwt-service.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 32ea60fdc5
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:22:44 2024 +0200

    Update docs/configuring-playbook-element-call.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 25a8cb3b4a
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:22:17 2024 +0200

    Update docs/configuring-playbook-element-call.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 55da5c3213
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:21:55 2024 +0200

    Update docs/configuring-playbook-element-call.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 925ebfbd4b
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:21:42 2024 +0200

    Update docs/configuring-playbook-element-call.md

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 88d4668450
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:16:43 2024 +0200

    Variable rename (livekit_server_image -> livekit_server_container_image) for consistency with other roles

commit 1838a541ae
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 16:15:54 2024 +0200

    Variables rename (matrix_livekit_server_ -> livekit_server_) to prepare for role extraction

commit 1e82530080
Merge: 82127830b 0c9fc4358
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 15:59:56 2024 +0200

    Merge branch 'master' into element-call-integration

commit 82127830b3
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 15:58:01 2024 +0200

    Update roles/custom/matrix-livekit-server/tasks/uninstall.yml

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 85c0ffa9e1
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 15:57:51 2024 +0200

    Update roles/custom/matrix-livekit-server/tasks/uninstall.yml

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit b691f39d39
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 15:57:44 2024 +0200

    Update roles/custom/matrix-livekit-server/tasks/install.yml

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit 10df145101
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Thu Nov 21 15:57:31 2024 +0200

    Update roles/custom/matrix-livekit-server/tasks/install.yml

    Co-authored-by: Suguru Hirahara <luixxiul@users.noreply.github.com>

commit fa2a913d39
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Thu Oct 3 16:20:54 2024 +1000

    fixing issue with element call domain not being expanded when writing the element web config.json.

commit e18b28136c
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Thu Oct 3 15:28:56 2024 +1000

    Updated Element call docs with dependent services and fixed typo.

commit 1906d61c39
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Thu Oct 3 13:25:40 2024 +1000

    updated traefik label to be in line with the latest change from devture_traefik_ to traefik_

commit b7e0a41134
Merge: a03f5985a d9a919a4b
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Oct 3 13:20:02 2024 +1000

    Merge branch 'spantaleev:master' into element-call-integration

commit a03f5985a5
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Thu Oct 3 12:38:34 2024 +1000

    removed trailing whitespaces

commit 1e6698cb99
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Wed Oct 2 13:27:02 2024 +1000

    updated documentation or the new roles.

commit f684719b2a
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 22:30:09 2024 +1000

    fixed error with element client update task

commit a6e3203398
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 22:20:50 2024 +1000

    updated docs, broke the well-known and element client modifications out to separate tasks.

commit 2b4fdea70f
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 17:04:11 2024 +1000

    added header flags back in.

commit 6c8923ae28
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 16:51:06 2024 +1000

    removed headers.

commit 9691577b22
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 16:45:07 2024 +1000

    removed additinoal headers

commit 46109565e1
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 16:33:48 2024 +1000

    updated headers for each of the call services.

commit 4acb025130
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 13:35:53 2024 +1000

    testing livekit configuration

commit e421852af5
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 13:09:00 2024 +1000

    updated jwt bind port

commit 5507fb3bab
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 13:08:21 2024 +1000

    added element-call config.json to systemd file

commit 9864996aad
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 12:46:37 2024 +1000

    adjusted jwt service ports for traefik

commit dbbaae4fbe
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 12:34:25 2024 +1000

    stopping the recursive loop

commit d53c2428b8
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 12:29:35 2024 +1000

    updated jwt hostname.

commit f98a505df8
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 11:00:56 2024 +1000

    changed jwt-service port label.

commit d5aabc85be
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 10:41:30 2024 +1000

    removed redis images in favor of the inbuilt keyDB

commit 7cdec5f251
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 10:17:34 2024 +1000

    fixed type in livekit image

commit fd2f505b34
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 10:00:30 2024 +1000

    Fixed typo in livekit server hostname

commit 812b57cfaa
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 09:54:02 2024 +1000

    resolved missing key.

commit b7b8ed573b
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 09:48:44 2024 +1000

    typo in livekit-server validate.

commit 97f93ebd76
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Tue Oct 1 09:31:42 2024 +1000

    renamed the livekit role and added livekit-server and jwt-service roles to the setup file.

commit 8cb7deff15
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 23:04:10 2024 +1000

    cleaned up old services again

commit 71dff50a65
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 22:53:21 2024 +1000

    fixed livekit service name

commit 58a9642e8c
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 22:45:56 2024 +1000

    fixed config file placement.

commit 3de399025f
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 22:41:36 2024 +1000

    hard coded redis port.

commit e952ba1c3a
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 22:35:59 2024 +1000

    removed duplicate tasks.

commit 8cb3e33bbf
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 22:20:46 2024 +1000

    separated livekit and jwt to separate roles

commit b907777ae5
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 13:13:29 2024 +1000

    fixing labels again.

commit cb41fb02ae
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 13:00:10 2024 +1000

    testing traefik labels again.

commit 31a138a6ba
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 12:47:42 2024 +1000

    fixed traefik router issues.

commit 6143ad7ffa
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 12:27:04 2024 +1000

    fix: removed the read-only tag from the element-call systemd file.

commit f762048a8d
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 12:15:27 2024 +1000

    fix: added missing labels to main.

commit 93650cf20e
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 12:02:45 2024 +1000

    fix: Type in the element-call main.yml

commit 9dbee212d8
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 11:37:08 2024 +1000

    fix: removed duplicate keys.

commit 1167e1ec13
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 11:17:34 2024 +1000

    fix: changed matrix server name to matrix domain in element-call config.

commit f036e18789
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Mon Sep 30 11:05:11 2024 +1000

    Fix: Restructured Element call configuration files.

commit a274d32c6d
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 12:50:31 2024 +1000

    Removed serve function

commit 5db9a5c061
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 12:40:37 2024 +1000

    Removed env file

commit 2492672025
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 12:39:39 2024 +1000

    Update env.j2

commit a0917fa283
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 12:37:36 2024 +1000

    Update main.yml

commit 8b172cc194
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 12:35:38 2024 +1000

    Update env.j2

commit 63133d6599
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 11:53:26 2024 +1000

    Added serve command back in.

commit 5b8dcf32d5
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 11:42:34 2024 +1000

    Added element-call systemd services to the service manager.

commit 14614cb211
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 10:26:01 2024 +1000

    Update matrix-element-call.service.j2

commit 3c084e17d2
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 10:15:51 2024 +1000

    Update element-call-labels.j2-new

commit 089c5f14c8
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 10:00:40 2024 +1000

    Update jwt-service-labels.j2

commit b6571fc4fd
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 09:59:54 2024 +1000

    Update livekit-labels.j2

commit 6d6f9ab853
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 09:59:13 2024 +1000

    Added hostnames for livekit and jwt labels

commit 5730dbfc6e
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 09:54:01 2024 +1000

    Added hostname label

commit c14f9cdcb5
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 09:25:48 2024 +1000

    Update matrix_servers

commit 805b726c6d
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 09:25:01 2024 +1000

    Update element-call-labels.j2

commit 5f49433f6c
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 09:15:21 2024 +1000

    Handle empty labels correctly.

commit 510cfb2dac
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 09:14:29 2024 +1000

    Update matrix_servers

commit 1721e85195
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 09:00:03 2024 +1000

    Corrected element call labels file name

commit 25909b1029
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 08:51:27 2024 +1000

    Update and rename labels.j2 to element-call-labels.j2

commit 3264408758
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 08:49:55 2024 +1000

    Rename element-call-labels.j2 to element-call-labels.j2-new

commit dd96b93d89
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 08:34:01 2024 +1000

    Update matrix-element-call.service.j2

commit df4bf4a0c9
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 08:23:24 2024 +1000

    Added tasks for moving the new labels files into place

commit 2f2cb8962e
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 08:19:26 2024 +1000

    Updated livekit labels

commit d2e2781d3b
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 08:18:27 2024 +1000

    Updated label file

commit 80763804f9
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 08:16:56 2024 +1000

    Updated label file

commit 1d7a60055c
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 08:10:06 2024 +1000

    Create jwt-service-labels.j2

commit 2cf471075d
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 08:09:32 2024 +1000

    Created livekit-labels.j2

commit 6a519bb053
Author: Backslash <wjbeckett@gmail.com>
Date:   Fri Sep 27 08:08:42 2024 +1000

    Created element-call-labels to separate the labels for each container

commit f0632b20eb
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 21:24:43 2024 +1000

    Added missing labels for sfu and jwt

commit 5cc9c70ba6
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 20:57:47 2024 +1000

    Remove serve command from matrix-element-call.service.j2

commit e34e5da9a4
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 19:57:39 2024 +1000

    Update matrix-redis.service.j2

commit 656d4275bc
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 19:48:06 2024 +1000

    Update install.yml

commit 6ef304b118
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 19:43:22 2024 +1000

    Update validate_config.yml

commit 85be68946c
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 19:30:15 2024 +1000

    Migrated from matrix_redis to redis_

commit 3f6c327da2
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 19:18:47 2024 +1000

    Update main.yml

commit ba54e549c4
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 19:08:09 2024 +1000

    Added well-known element directory

commit f2acc7430d
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 18:53:49 2024 +1000

    Create well_known_element.json.j2

commit 9cb236da30
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 18:50:48 2024 +1000

    Update install.yml

commit f38d6a0d88
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 18:39:03 2024 +1000

    Update main.yml

commit ac1295ac45
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 18:33:22 2024 +1000

    Create matrix-jwt-service.service.j2

commit bc2ed60762
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 17:23:03 2024 +1000

    Update main.yml

commit f7621283fd
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 16:31:23 2024 +1000

    Update labels.j2

commit e31e688a41
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 15:42:05 2024 +1000

    Update main.yml

commit a533ec4204
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 15:38:12 2024 +1000

    Update matrix_servers

commit f16ca24408
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 15:17:15 2024 +1000

    Update install.yml

commit e910d09ff1
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 14:52:30 2024 +1000

    Create matrix-redis.service.j2

commit bc9658c06b
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 13:40:38 2024 +1000

    Create matrix-livekit.service.j2

commit 45c8a61f04
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 11:39:33 2024 +1000

    Migrating to systemd for container management

commit 954d46cfd7
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 09:25:49 2024 +1000

    Update labels.j2

commit dfeca192ab
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 09:23:26 2024 +1000

    Update redis.conf.j2

commit f306a47b83
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 09:22:29 2024 +1000

    Update livekit.yaml.j2

commit becdb0810c
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 09:18:55 2024 +1000

    Update config.json.j2

commit 37fd2e701d
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 09:15:07 2024 +1000

    Update env.j2 to support the new configuration

commit 68cc1f4b2b
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 08:29:16 2024 +1000

    Simplified the validation step.

commit 5efc189293
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 08:12:06 2024 +1000

    Updated to support new structure

commit 02479e8bec
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 07:59:09 2024 +1000

    Updated with new structure.

commit 0eef094f2b
Author: Backslash <wjbeckett@gmail.com>
Date:   Thu Sep 26 06:51:36 2024 +1000

    Restructure install.yml to follow other roles more closely

commit 16ed788b3f
Author: Backslash <wjbeckett@gmail.com>
Date:   Wed Sep 25 21:07:22 2024 +1000

    Update main.yml

commit 6364101410
Author: Backslash <wjbeckett@gmail.com>
Date:   Wed Sep 25 20:20:20 2024 +1000

    Adding another debug task for testing the labels file.

commit 81735503f8
Author: Backslash <wjbeckett@gmail.com>
Date:   Wed Sep 25 20:06:27 2024 +1000

    Added debug task to test labels configuration

commit 8644a7383e
Author: Backslash <wjbeckett@gmail.com>
Date:   Wed Sep 25 19:22:21 2024 +1000

    Removed additional label loop

commit ce827e7953
Author: Backslash <wjbeckett@gmail.com>
Date:   Wed Sep 25 19:09:13 2024 +1000

    Changed matrix_base_domain to matrix_domain

commit c93d30bcb8
Author: Backslash <wjbeckett@gmail.com>
Date:   Wed Sep 25 19:07:03 2024 +1000

    Added matrix_server_name to the defaults

commit 90ea758c3b
Author: Backslash <wjbeckett@gmail.com>
Date:   Wed Sep 25 18:39:26 2024 +1000

    Fixed regex for checking the hostname.

commit 350d4d4bcd
Author: Backslash <wjbeckett@gmail.com>
Date:   Wed Sep 25 18:35:09 2024 +1000

    Fixed assertion block to remove jinja2 delimiters

commit fc6357a089
Author: Backslash <wjbeckett@gmail.com>
Date:   Wed Sep 25 18:05:34 2024 +1000

    Update main.yml

commit 60f34cd7af
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Wed Sep 25 16:13:29 2024 +1000

    fixed matrix_redis for migration

commit d1ba784dde
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Wed Sep 25 15:01:53 2024 +1000

    added doc for setting up element call.

commit 434157eb98
Merge: 6594cce57 f657273cc
Author: Backslash <wjbeckett@gmail.com>
Date:   Wed Sep 25 14:55:42 2024 +1000

    Merge branch 'spantaleev:master' into element-call-integration

commit 6594cce570
Author: wjbeckett <wjbeckett@gmail.com>
Date:   Wed Sep 25 14:53:48 2024 +1000

    Feat: Added element call setup and configuration.

Ref:
- c4747dd177/docs/self-hosting.md (a-matrix-homeserver)
- e39fe3bc7f

* Add support for configuring Synapse's MSC4133 (Custom Profile Fields) experimental feature

* Reorder experimental_features in homeserver.yaml.j2 alphabetically

---------

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

* Modernise Draupnir Configuration Variable Names

* Move Draupnir deprecation-check task before undefined-variables-check

* Fix trailing spaces in Draupnir's `validate_config.yml`

---------

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

* Update D4A Configuration

D4A had some breaking config changes so this commit fixes them and gets us back into compliance with upstream. And since we run in a docker container we can use the /data/storage default.

* Update D4A Configuration to harmonise with bot mode

Change the default config for D4A to align with bot mode default in mdad. This should also avert a bit of a mess of a potential bug.

* Change D4A Room State Backing Store variable name and fix SPDX Headers

* Align D4A config with new schema

* Fix D4A Config Lint Error

* Update D4A SPDX Entries

* Do not use double quotes around `to_json` values

---------

Co-authored-by: Slavi Pantaleev <slavi@devture.com>

Without this, we get a warning message from Traefik:

> INF Could not create a router for the container: too many services providerName=docker

Possibly due to the multiple services defined there without a single
explicitly-defined router.

The new rate limits are more suitable for running Element Call.

Ref:

- 93ae2aed98/docs/self-hosting.md (a-matrix-homeserver)
- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3562

Instead of trying to increase them conditionally only when Element Call
is enabled, it's simpler and good-enough to just increase them in all cases.

This is required by Element Call.

Ref:

- 93ae2aed98/docs/self-hosting.md (a-matrix-homeserver)
- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3562

This is required by Element Call.

Ref:

- 93ae2aed98/docs/self-hosting.md (a-matrix-homeserver)
- https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/3562

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

Related to:

- https://github.com/element-hq/element-web/pull/29471
- 16f9e7dd46

Newer Element Web versions allow for the nginx port to be
overriden, etc., and provide instructions for running in read-only mode.

This makes our custom `nginx.conf` patches unnecessary.

Passing the correct `ELEMENT_WEB_PORT` environment variable
also helps with future changes.

Another benefit of this (besides keeping closer to upstream
recommendations and the improved simplicity) is that:

- the container can run its entrypoint env-substitutions code now,
  without reporting errors

- IPv6 for nginx works, so `matrix-client-element:8080` is accessible
  via IPv6 on the container network now
  (this affects only for Traefik's communicaton with Element Web
  internally; public connectivity was handled by Traefik and IPv6 was
  available there even before)

Ref:

- 2052080d7d/docs/install.md (docker)
- https://github.com/element-hq/element-web/pull/28849
- https://github.com/element-hq/element-web/pull/28840

This reverts commit 178f7a9fff.

Element v1.11.95 doesn't seem to work. The container starts and is
unhealthy.

Until this is investigated and fixed, reverting.

Previously `https://example.com` and `https://example.com/` would be
redirected to `https://matrix.example.com`.

However, `https://example.com/?something` was not handled and was tried
to be served as a file by matrix-static-files for this base domain.

From now on, paths containing query strings will be handled as well
and the query string will be passed along.
Example: `https://example.com/?something` -> `https://matrix.example.com/?something`

Since nginx 1.27.3, we can make use of the `resolve` parameter for an `upstream`'s `server`,
to allow DNS resolution to happen continuously at runtime, not just once during startup.

Previously, this was not possible to do in an `upstream` block without
an nginx-plus subscription. Outside of an `upstream` block, we've used
and still use `set $backend ..` workarounds to get DNS resolution at
runtime, but now we can do it in `upstream` as well.