* Inital work, copeid from mautrix-amp PR

* Some fixes leftover code copeid over from whatsapp

* Got it to run and register

* Fixed service issue with docker image

* I now realize I need 2 roles wsproxy and imessage

* Got someting working, still rough

* Closer to working but still not working

* reverting ports

* Update main.yml

* Add matrix-nginx-proxy config for mautrix-wsproxy

* Changed

* Add back file

* fix for error hopefully

* Changed the the way nginx was recieved

* basically did not add anything ugh

* Added some arguments

* just trying stuff now

* Ugh i messed up port number

* Changed docs

* Change dns config

* changed generic secret key

* Testing new nginx proxy

* test

* Fix linting errors

* Add mautrix syncproxy to wsproxy for Android SMS

* WIP

* Move wsproxy to custom

* Squashed commit of the following:

commit 943189a9aa
Merge: 4a229d68 f5a09f30
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sun Nov 13 08:54:32 2022 +0200

    Merge pull request #2259 from throny/patch-3

    warn users about upgrading to pg15 when using borg

commit 4a229d6870
Merge: 9b326e08 c68def08
Author: Slavi Pantaleev <slavi@devture.com>
Date:   Sun Nov 13 08:53:13 2022 +0200

    Merge pull request #2260 from etkecc/patch-117

    Update ntfy 1.28.0 -> 1.29.0

commit f5a09f30b7
Author: throny <m.throne12@gmail.com>
Date:   Sat Nov 12 23:48:57 2022 +0100

    Update maintenance-postgres.md

commit b12cdbd99d
Author: throny <m.throne12@gmail.com>
Date:   Sat Nov 12 23:40:46 2022 +0100

    Update maintenance-postgres.md

commit c68def0809
Author: Aine <97398200+etkecc@users.noreply.github.com>
Date:   Sat Nov 12 22:01:31 2022 +0000

    Update ntfy 1.28.0 -> 1.29.0

commit adbc09f152
Author: throny <m.throne12@gmail.com>
Date:   Sat Nov 12 11:20:43 2022 +0100

    warn users about upgrading to pg15 when using borg

* Fix linting errors

* Cleanup after merge

* Correct outdated variable names

* Enable both Android and iMessage with wsproxy

* Restructure wsproxy service defs and nginx config

* Fix linter errors

* Apply suggestions from code review

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

* Fix comments for documentation, volumes and ports

* Correct mount syntax

* Complete network and traefik support for wsproxy

* Remove wsproxy data_path

* Fix wsproxy service definitions

* Actually include syncproxy service

* Remove wsproxy PathPrefix, it needs a subdomain

There's no setting in the iMessage bridge that allows a path.
Also don't bind port by default, wsproxy has no TLS.
Syncproxy should never expose a port, it's only internal.

---------

Co-authored-by: hanthor <jreilly112@gmail.com>
Co-authored-by: Miguel Alatzar <miguel@natrx.io>
Co-authored-by: Shreyas Ajjarapu <github.tzarina@aleeas.com>
Co-authored-by: Slavi Pantaleev <slavi@devture.com>

This paves the way for installing other roles into `roles/galaxy` using `ansible-galaxy`,
similar to how it's done in:

- https://github.com/spantaleev/gitea-docker-ansible-deploy
- https://github.com/spantaleev/nextcloud-docker-ansible-deploy

In the near future, we'll be removing a lot of the shared role code from here
and using upstream roles for it. Some of the core `matrix-*` roles have
already been extracted out into other reusable roles:

- https://github.com/devture/com.devture.ansible.role.postgres
- https://github.com/devture/com.devture.ansible.role.systemd_docker_base
- https://github.com/devture/com.devture.ansible.role.timesync
- https://github.com/devture/com.devture.ansible.role.vars_preserver
- https://github.com/devture/com.devture.ansible.role.playbook_runtime_messages
- https://github.com/devture/com.devture.ansible.role.playbook_help

We just need to migrate to those.

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/1393

Fixes https://github.com/spantaleev/matrix-docker-ansible-deploy/issues/1154

According to
https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Content-Security-Policy,
having both a header and the `<meta>`-tag provided by Element itself is
not a problem. The 2 CSP policies get combined.

https://github.com/vector-im/element-web#configuration-best-practices

Related to https://github.com/spantaleev/matrix-docker-ansible-deploy/pull/1057

More Production ready nginx headers for Matrix client element.

X-XSS-Protection: 1; mode=block; header, for basic XSS protection in legacy browsers.
X-Content-Type-Options: nosniff header, to disable MIME sniffing

Not sure if it breaks with them or not, but no other directive
uses quotes and the nginx docs show examples without quotes,
so we're being consistent with all of that.

Code was clean up and simplified to make it simpler and easier to
maintain. No features were modified.

The different configurations are now all lower case, for consistent
naming.

`matrix_nginx_proxy_ssl_config` is now called
`matrix_nginx_proxy_ssl_preset`. The different options for "modern",
"intermediate" and "old" are stored in the main.yml file, instead of
being hardcoded in the configuration files. This will improve the
maintainability of the code.

The "custom" preset was removed. Now if one of the variables is set, it
will use it instead of the preset. This will allow to mix and match more
easily, for example using all the intermediate options but only
supporting TLSv1.2. This will also provide better backward
compatibility.

A new variable called `matrix_nginx_proxy_ssl_config` is created for
configuring how the nginx proxy configures SSL. Also a new configuration
validation option and other auxiliary variables are created.

A new variable configuration called `matrix_nginx_proxy_ssl_config` is
created. This allow to set the SSL configuration easily using the
default options proposed by Mozilla. The default configuration is set to
"Intermediate", removing the weak ciphers used in the old
configurations.

The new variable can also be set to "Custom" for a more granular control.
This allows to set another three variables called:

- `matrix_nginx_proxy_ssl_protocols`,
- `matrix_nginx_proxy_ssl_prefer_server_ciphers`
- `matrix_nginx_proxy_ssl_ciphers`

Also a new task is added to validate the SSL configuration variable.

Fixes #586 (Github Issue)

Use Jinja2 lstrip_blocks option in templates to ensure consistent
indentation in generated files.

This makes all containers (except mautrix-telegram and
mautrix-whatsapp), start as a non-root user.

We do this, because we don't trust some of the images.
In any case, we'd rather not trust ALL images and avoid giving
`root` access at all. We can't be sure they would drop privileges
or what they might do before they do it.

Because Postfix doesn't support running as non-root,
it had to be replaced by an Exim mail server.

The matrix-nginx-proxy nginx container image is patched up
(by replacing its main configuration) so that it can work as non-root.
It seems like there's no other good image that we can use and that is up-to-date
(https://hub.docker.com/r/nginxinc/nginx-unprivileged is outdated).

Likewise for riot-web (https://hub.docker.com/r/bubuntux/riot-web/),
we patch it up ourselves when starting (replacing the main nginx
configuration).
Ideally, it would be fixed upstream so we can simplify.

Fixes #83 (Github issue)

It hasn't mattered much to have these so far, but
it's probably a good idea to have them.

With this change, the following roles are now only dependent
on the minimal `matrix-base` role:
- `matrix-corporal`
- `matrix-coturn`
- `matrix-mailer`
- `matrix-mxisd`
- `matrix-postgres`
- `matrix-riot-web`
- `matrix-synapse`

The `matrix-nginx-proxy` role still does too much and remains
dependent on the others.

Wiring up the various (now-independent) roles happens
via a glue variables file (`group_vars/matrix-servers`).
It's triggered for all hosts in the `matrix-servers` group.

According to Ansible's rules of priority, we have the following
chain of inclusion/overriding now:
- role defaults (mostly empty or good for independent usage)
- playbook glue variables (`group_vars/matrix-servers`)
- inventory host variables (`inventory/host_vars/matrix.<your-domain>`)

All roles default to enabling their main component
(e.g. `matrix_mxisd_enabled: true`, `matrix_riot_web_enabled: true`).
Reasoning: if a role is included in a playbook (especially separately,
in another playbook), it should "work" by default.

Our playbook disables some of those if they are not generally useful
(e.g. `matrix_corporal_enabled: false`).

As suggested in #63 (Github issue), splitting the
playbook's logic into multiple roles will be beneficial for
maintainability.

This patch realizes this split. Still, some components
affect others, so the roles are not really independent of one
another. For example:
- disabling mxisd (`matrix_mxisd_enabled: false`), causes Synapse
and riot-web to reconfigure themselves with other (public)
Identity servers.

- enabling matrix-corporal (`matrix_corporal_enabled: true`) affects
how reverse-proxying (by `matrix-nginx-proxy`) is done, in order to
put matrix-corporal's gateway server in front of Synapse

We may be able to move away from such dependencies in the future,
at the expense of a more complicated manual configuration, but
it's probably not worth sacrificing the convenience we have now.

As part of this work, the way we do "start components" has been
redone now to use a loop, as suggested in #65 (Github issue).
This should make restarting faster and more reliable.

The new container image is about 20x smaller in size, faster to start up, etc.

This also fixes #26 (Github issue).

Adds support for managing certificates manually and for
having the playbook generate self-signed certificates for you.

With this, Let's Encrypt usage is no longer required.

Fixes Github issue #50.

Moving away from using the default bridge network to using our own.
This isolates our services from other Docker containers running
on the default network on the same host.

The benefits are that:

- isolation is a little better - we no longer share a default
bridge network with any other containers that might be running on the host

- there are no longer hard dependencies - we do service discovery
by DNS name, and not via explicit `--link` usage during container start,
so containers can start out of order and fail without bringing down others
with them
(`matrix-nginx-proxy` can continue running, even if one of the other services dies)

In the future, when other services get introduced,
the increased resilience and simplicity will help as well.

When using matrix-nginx-proxy, the file permissions are organized
in a way that matrix-nginx-proxy could read the challenge files
produced by acmetool.

However, when another own/external webserver was used (like nginx
with our generated sample configuration), this could not work.
From on we're proxying the HTTP requests to port :402 in such a case,
which fixes the problem.