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Docker: support SYNAPSE_WORKER envvar (#6058)

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* Allow passing SYNAPSE_WORKER envvar

* changelog.d

* Document SYNAPSE_WORKER.

Attempting to imply that you don't need to change this default
unless you're in worker mode.

Also aware that there's a bigger problem of attempting to document
a complete working configuration of workers using docker, as we
currently only document to use `synctl` for worker mode, and synctl
doesn't work that way in docker.
This commit is contained in:
Michael Kaye 2019-09-19 22:29:47 +01:00 committed by Richard van der Hoff
parent 36015d68ef
commit 2def5ea0da
3 changed files with 5 additions and 1 deletions
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1
changelog.d/6058.docker Normal file
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@ -0,0 +1 @@
Provide SYNAPSE_WORKER envvar to specify python module.

2
docker/README.md
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@ -89,6 +89,8 @@ The following environment variables are supported in run mode:
`/data`. `/data`.
* `SYNAPSE_CONFIG_PATH`: path to the config file. Defaults to * `SYNAPSE_CONFIG_PATH`: path to the config file. Defaults to
`<SYNAPSE_CONFIG_DIR>/homeserver.yaml`. `<SYNAPSE_CONFIG_DIR>/homeserver.yaml`.
* `SYNAPSE_WORKER`: module to execute, used when running synapse with workers.
Defaults to `synapse.app.homeserver`, which is suitable for non-worker mode.
* `UID`, `GID`: the user and group id to run Synapse as. Defaults to `991`, `991`. * `UID`, `GID`: the user and group id to run Synapse as. Defaults to `991`, `991`.
* `TZ`: the [timezone](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) the container will run with. Defaults to `UTC`. * `TZ`: the [timezone](https://en.wikipedia.org/wiki/List_of_tz_database_time_zones) the container will run with. Defaults to `UTC`.

3
docker/start.py
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@ -182,6 +182,7 @@ def main(args, environ):
mode = args[1] if len(args) > 1 else None mode = args[1] if len(args) > 1 else None
desired_uid = int(environ.get("UID", "991")) desired_uid = int(environ.get("UID", "991"))
desired_gid = int(environ.get("GID", "991")) desired_gid = int(environ.get("GID", "991"))
synapse_worker = environ.get("SYNAPSE_WORKER", "synapse.app.homeserver")
if (desired_uid == os.getuid()) and (desired_gid == os.getgid()): if (desired_uid == os.getuid()) and (desired_gid == os.getgid()):
ownership = None ownership = None
else: else:
@ -245,7 +246,7 @@ def main(args, environ):
log("Starting synapse with config file " + config_path) log("Starting synapse with config file " + config_path)
args = ["python", "-m", "synapse.app.homeserver", "--config-path", config_path] args = ["python", "-m", synapse_worker, "--config-path", config_path]
if ownership is not None: if ownership is not None:
args = ["su-exec", ownership] + args args = ["su-exec", ownership] + args
os.execv("/sbin/su-exec", args) os.execv("/sbin/su-exec", args)