Fix an undefined variable.

defaults/main.yml

@@ -24,6 +24,7 @@ shinyproxy_as_docker_src_dir: /srv/shinyproxy_service
 shinyproxy_as_docker_service_name: 'shinyproxy'
 shinyproxy_docker_network: 'shinyproxy'
 shinyproxy_docker_swarm_replicas: 2
+shinyproxy_docker_log_to_journal: True
 # Shinyproxy configuration
 # docker, docker-swarm, kubernetes
 shinyproxy_container_backend: 'docker'

templates/shinyproxy-docker-compose.yml.j2

@@ -12,8 +12,8 @@ services:
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock
       - {{ shinyproxy_as_docker_src_dir }}/application.yml:/opt/shinyproxy/application.yml:ro
-    networks:
-      - '{{ shinyproxy_docker_network }}'
+#    networks:
+#      - {{ shinyproxy_docker_network }}
 {% if shinyproxy_container_backend == 'docker-swarm' %}
     deploy:
       mode: replicated
@@ -27,7 +27,7 @@ services:
         max_attempts: 3
         window: 120s
 {% endif %}
-{% if docker_log_to_journal %}
+{% if shinyproxy_docker_log_to_journal %}
     logging:
       driver: 'journald'
 {% endif %}