Merge pull request #3995 from luixxiul/fix

Update docs/configuring-playbook-bridge-appservice-slack.md and its main.yml

docs/configuring-playbook-bridge-appservice-slack.md

@@ -61,7 +61,21 @@ matrix_appservice_slack_control_room_id: "Your Matrix admin room ID"
 # matrix_appservice_slack_team_sync_enabled: true
 ```
 
-Other configuration options are available via the `matrix_appservice_slack_configuration_extension_yaml` variable.
+### Extending the configuration
+
+There are some additional things you may wish to configure about the bridge.
+
+Take a look at:
+
+- `roles/custom/matrix-bridge-appservice-slack/defaults/main.yml` for some variables that you can customize via your `vars.yml` file
+- `roles/custom/matrix-bridge-appservice-slack/templates/config.yaml.j2` for the bridge's default configuration. You can override settings (even those that don't have dedicated playbook variables) using the `matrix_appservice_slack_configuration_extension_yaml` variable
+
+For example, to change the bot's username from `slackbot`, add the following configuration to your `vars.yml` file. Replace `examplebot` with your own.
+
+```yaml
+matrix_appservice_slack_configuration_extension_yaml: |
+  bot_username: "examplebot"
+```
 
 ## Installing
 
@@ -121,16 +135,16 @@ Unlinking doesn't only disconnect the bridge, but also makes the slackbot leave
 
 ## Troubleshooting
 
-As always, check the logs: `journalctl -fu matrix-appservice-slack`
+As with all other services, you can find the logs in [systemd-journald](https://www.freedesktop.org/software/systemd/man/systemd-journald.service.html) by logging in to the server with SSH and running `journalctl -fu matrix-appservice-slack`.
 
 ### Linking: "Room is now pending-name"
 
 This typically means that you haven't used the correct Slack channel ID. Unlink the room and recheck 'Determine the "channel ID"' from above.
 
 ### Messages work from Matrix to Slack, but not the other way around
 
-Check you logs, if they say something like
+Check the logs, and if you find the message like below, unlink your room, reinvite the bot and re-link it again.
 
 `WARN SlackEventHandler Ignoring message from unrecognised Slack channel ID : %s (%s) <the channel ID> <some other ID>`
 
-then unlink your room, reinvite the bot and re-link it again. This may particularly hit you, if you tried to unsuccessfully link your room multiple times without unlinking it after each failed attempt.
+This may particularly hit you, if you tried to unsuccessfully link your room multiple times without unlinking it after each failed attempt.

roles/custom/matrix-bridge-appservice-slack/defaults/main.yml

@@ -153,7 +153,7 @@ matrix_appservice_slack_configuration_extension_yaml: |
     #    console: "info"
     #    files:
     #    - "./debug.log": "info"
-    #- "./error.log": "error"
+    #    - "./error.log": "error"
 
 matrix_appservice_slack_configuration_extension: "{{ matrix_appservice_slack_configuration_extension_yaml | from_yaml if matrix_appservice_slack_configuration_extension_yaml | from_yaml else {} }}"