diff --git a/changelog.d/5565.feature b/changelog.d/5565.feature
new file mode 100644
index 0000000000..4b0665af03
--- /dev/null
+++ b/changelog.d/5565.feature
@@ -0,0 +1 @@
+Docker: Send synapse logs to the docker logging system, by default.
diff --git a/docker/README.md b/docker/README.md
index 5c85c538a8..a42d1d24b6 100644
--- a/docker/README.md
+++ b/docker/README.md
@@ -186,6 +186,8 @@ The following environment variables are supported in this mode:
* `SYNAPSE_REPORT_STATS` (mandatory, `yes` or `no`): whether to enable
anonymous statistics reporting.
* `SYNAPSE_CONFIG_PATH` (mandatory): path to the file to be generated.
+* `SYNAPSE_CONFIG_DIR`: where additional config files (such as the log config
+ and event signing key) will be stored. Defaults to `/data`.
* `SYNAPSE_DATA_DIR`: where the generated config will put persistent data
such as the datatase and media store. Defaults to `/data`.
* `UID`, `GID`: the user id and group id to use for creating the data
diff --git a/docker/start.py b/docker/start.py
index 1e6acb464c..fdc3d59d86 100755
--- a/docker/start.py
+++ b/docker/start.py
@@ -135,8 +135,16 @@ def run_generate_config(environ, ownership):
if v not in environ:
error("Environment variable '%s' is mandatory in `generate` mode." % (v,))
+ server_name = environ["SYNAPSE_SERVER_NAME"]
+ config_dir = environ.get("SYNAPSE_CONFIG_DIR", "/data")
data_dir = environ.get("SYNAPSE_DATA_DIR", "/data")
+ # create a suitable log config from our template
+ log_config_file = "%s/%s.log.config" % (config_dir, server_name)
+ if not os.path.exists(log_config_file):
+ log("Creating log config %s" % (log_config_file,))
+ convert("/conf/log.config", log_config_file, environ)
+
# make sure that synapse has perms to write to the data dir.
subprocess.check_output(["chown", ownership, data_dir])
@@ -145,11 +153,13 @@ def run_generate_config(environ, ownership):
"-m",
"synapse.app.homeserver",
"--server-name",
- environ["SYNAPSE_SERVER_NAME"],
+ server_name,
"--report-stats",
environ["SYNAPSE_REPORT_STATS"],
"--config-path",
environ["SYNAPSE_CONFIG_PATH"],
+ "--config-directory",
+ config_dir,
"--data-directory",
data_dir,
"--generate-config",
|