remove haproxy dockerfile usage

docker-compose.yml

@@ -160,9 +160,7 @@ services:
   haproxy:
     domainname: 'nb.local.com'
     container_name: haproxy
-    build:
-      context: .
-      dockerfile: docker/haproxy/Dockerfile
+    image: haproxy:1.8.22
     depends_on: 
       - nginx
       - newsblur_web

docker/haproxy/Dockerfile

@@ -1,9 +0,0 @@
-FROM newsblur/newsblur_python3
-FROM haproxy:1.8.22
-ENV PYTHONUNBUFFERED=1
-ENV NEWSBLUR_PATH=/srv/newsblur
-WORKDIR   /srv/newsblur
-
-RUN /bin/bash -c 'echo "ENABLED=1" | tee /etc/default/haproxy'
-RUN /bin/bash -c 'mkdir -p /srv/newsblur/config/certificates/'
-COPY 'config/haproxy_rsyslog.conf' '/etc/rsyslog.d/49-haproxy.conf'