Co-authored-by: reivilibre <oliverw@matrix.org>

* Expose getting SYNAPSE_WORKER_TYPES from external, allowing override of workers requested.

* Add WORKER_TYPES variable option to complement.sh script that passes requested workers into start_for_complement.sh entrypoint.

* Update docs to reflect this new ability.

* Changelog

* Don't rely on soft wrapping to format long strings

Good idea dklimpel. Thanks for catching that.

Co-authored-by: Dirk Klimpel <5740567+dklimpel@users.noreply.github.com>

* Small nits just noticed in docs.

* Fixup new line in docs.

Co-authored-by: Dirk Klimpel <5740567+dklimpel@users.noreply.github.com>

Also update `subprocess.check_output` to the slightly newer `subprocess.run`.

Signed-off-by: Jason Little <realtyem@gmail.com>

Stabilize the threads API (MSC3856) by supporting (only) the v1
path for the endpoint.

This also marks the API as safe for workers since it is a read-only
API.

Co-authored-by: David Robertson <davidr@element.io>

Co-authored-by: Eric Eastwood <erice@element.io>

Have nginx send its logs to stderr/out, so that we can debug
https://github.com/matrix-org/synapse/issues/13334.

Signed-off-by: Mathieu Velten <mathieuv@matrix.org>
Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>

Signed-off-by: Mathieu Velten <mathieuv@matrix.org>

Doing so in the base postgres image doesn't work with buildah because
changes in a declared VOLUME in the Dockerfile is supposed to be
discarded, cf https://docs.docker.com/engine/reference/builder/#volume



Signed-off-by: Mathieu Velten <mathieuv@matrix.org>

Part of my continuing quest to make the docker images build quicker: copy nginx and redis in from base docker images, rather than apt installing each time.

Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>

Co-authored-by: David Robertson <davidr@element.io>

When building the docker images for complement testing, copy a preinstalled
complement over from a base image, rather than apt installing it. This avoids
network traffic and is much faster.

Add the ability to set the log level using the `SYNAPSE_TEST_LOG_LEVEL` environment when using `complement.sh`. (#13152)

Improve startup times in Complement test runs against workers, particularly in CPU-constrained environments. (#13127)

Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>

Refactor the Dockerfile-workers configuration script to use Jinja2 templates in Synapse workers' Supervisord blocks. (#13054)

Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>

If no database is configured explicitly, use sqlite.

This means that you don't have to pass any variables into the image.

Co-authored-by: Richard van der Hoff <1389908+richvdh@users.noreply.github.com>