Updated docker compose syntax with respect to dependencies to maintain consistency with the upstream docker-compose role.

tasks/main.yml

@@ -1,10 +1,11 @@
 ---
-  - name: Create the directory for the weatherfeeder configuration file if it doesn't already exist.
+  - name: Create directories for the container data and configuration files.
     file:
       path: "{{ docker_appdata_directory}}/{{ feedstack_directory_item }}"
       state: directory
     loop:
       - weatherfeeder
+      - weatherprocessor
       - nats/config
       - nats/data
     loop_control:
@@ -18,6 +19,12 @@
       dest: "{{ docker_appdata_directory }}/weatherfeeder/config.yml"
     become: true
 
+  - name: Create the weatherprocessor configuration file from the provided template.
+    template:
+      src: "weatherprocessor/config.yml.j2"
+      dest: "{{ docker_appdata_directory }}/weatherprocessor/config.yml"
+    become: true
+
   - name: Create the nats configuration file from the provided template.
     template:
       src: "nats/nats.conf.j2"

templates/nats/nats.conf.j2

@@ -1,6 +1,9 @@
 # Single-node NATS configuration for local app-to-app messaging.
 # WeatherFeeder can publish to this server without authentication.
 
+# Listen on all IPv4 and IPv6 interfaces
+listen: "[::]:4222"
+
 # Client connections (WeatherFeeder + consumers).
 port: 4222
 
@@ -8,6 +11,6 @@ port: 4222
 monitor_port: 8222
 
 # Optional persistence for future stream use.
-jetstream {
+#jetstream {
-  store_dir: "/data"
+#  store_dir: "/data"
-}
+#}

templates/weatherprocessor/config.yml.j2

@@ -0,0 +1,20 @@
+---
+sources:
+  - name: WeatherfeederNATS
+    driver: nats
+    params:
+      url: nats://nats:4222
+      subject: weatherfeeder
+      # Optional source tuning:
+      # max_batch: 256
+      # receive_wait: 25ms
+
+sinks:
+  - name: stdout
+    driver: stdout
+    params: {}
+
+routes:
+  - sink: stdout
+    kinds: []
+...

vars/containers/nats.yml

@@ -10,10 +10,13 @@ nats:
   # Define the path where application data for this container will be stored.
   appdata_directory: "{{ docker_appdata_directory }}/nats"
 
+  # Needed to set the config file.
+  command: "-c /nats.conf"
+
   # Define the volumes that should be mounted into the container.
   volumes:
     - "{{ docker_appdata_directory }}/nats/data:/data"
-    - "{{ docker_appdata_directory }}/nats/config/nats.conf:/etc/nats/nats.conf:ro"
+    - "{{ docker_appdata_directory }}/nats/config/nats.conf:/nats.conf:ro"
 
   # Define the ports that should be opened to the outside world.
   ports:

vars/containers/weatherfeeder.yml

@@ -17,6 +17,10 @@ weatherfeeder:
   # Define the ports that should be opened to the outside world.
   #ports: []
 
+  # Define the dependencies for this container.
+  dependencies:
+    - nats
+
   # Define environment variables to be passed to the container.
   #environment_variables: []
 

vars/containers/weatherprocessor.yml

@@ -17,10 +17,13 @@ weatherprocessor:
   # Define the ports that should be opened to the outside world.
   #ports: []
 
+  # Define the dependencies for this container.
+  dependencies:
+    - nats
+    - weatherfeeder
+
   # Define environment variables to be passed to the container.
   environment_variables:
-    - "WEATHERPROCESSOR_NATS_URL=nats://nats:4222"
-    - "WEATHERPROCESSOR_SUBJECT=weatherfeeder"
     - "WEATHERPROCESSOR_OUTPUT_FORMAT=yaml"
 
 ...