[FEATURE] Output unison output to docker logs

Dockerfile

@@ -37,6 +37,11 @@ RUN apk add --no-cache curl \
  && curl -L https://github.com/jwilder/docker-gen/releases/download/$DOCKERGEN_VERSION/docker-gen-linux-amd64-$DOCKERGEN_VERSION.tar.gz | tar -C /usr/local/bin -xzv \
  && apk del curl
 
+# Install supervisord-stdout
+RUN apk add --no-cache py-pip \
+ && pip install supervisor-stdout \
+ && apk del py-pip
+
 # Install entrypoint script
 COPY entrypoint.sh /entrypoint.sh
 RUN mkdir -p /sync-entrypoint.d \

supervisor.unison.tpl.conf

@@ -4,4 +4,12 @@ user=$user
 environment=HOME="$homedir",USER="$user"
 directory = $volume
 redirect_stderr = true
-autorestart=true
+autorestart=true
+stdout_events_enabled=true
+stderr_events_enabled=true
+
+[eventlistener:stdout]
+command = supervisor_stdout
+buffer_size = 100
+events = PROCESS_LOG
+result_handler = supervisor_stdout:event_handler

supervisord.conf

@@ -3,6 +3,8 @@ logfile=/tmp/supervisord.log
 loglevel=info
 pidfile=/tmp/supervisord.pid
 nodaemon=true
+stdout_logfile=/dev/stdout
+stdout_logfile_maxbytes=0
 
 [unix_http_server]
 file=/tmp/supervisor.sock