Fix the data directory permissions. Add the default template.

tasks/cassandra-configuration.yml

@@ -2,6 +2,28 @@
 - name: cassandra-configuration | Manage the Cassandra configuration
   tags: [cassandra, cassandra_conf, cassandra_service]
   block:
+    - name: cassandra-configuration | Ensure that the data folders exist and have the proper permissions
+      ansible.builtin.file:
+        dest: "{{ item }}"
+        state: directory
+        owner: cassandra
+        group: cassandra
+        mode: "0750"
+      loop:
+        - "{{ cassandra_data_dir }}"
+        - "{{ cassandra_data_dir }}/.cache"
+        - "{{ cassandra_data_dir }}/commitlog"
+        - "{{ cassandra_data_dir }}/data"
+        - "{{ cassandra_data_dir }}/hints"
+        - "{{ cassandra_data_dir }}/saved_caches"
+    - name: cassandra-configuration | Install the default env file
+      ansible.builtin.template:
+        src: cassandra-default.j2
+        dest: "/etc/default/cassandra"
+        owner: root
+        group: cassandra
+        mode: "0640"
+      notify: Restart Cassandra
     - name: cassandra-configuration | Install the main configuration file
       ansible.builtin.template:
         src: cassandra.yaml.j2
@@ -10,7 +32,6 @@
         group: cassandra
         mode: "0640"
       notify: Restart Cassandra
-
     - name: cassandra-configuration | Install the rackdc configuration file
       ansible.builtin.template:
         src: cassandra-rackdc.properties.j2

templates/cassandra-default.j2

@@ -0,0 +1,7 @@
+# NOTICE: See also /etc/cassandra/cassandra-env.sh
+
+# EXTRA_CLASSPATH provides the means to extend Cassandra's classpath with
+# additional libraries.  It is formatted as a colon-delimited list of
+# class directories and/or jar files.  For example, to enable the
+# JMX-to-web bridge install libmx4j-java and uncomment the following.
+#EXTRA_CLASSPATH="/usr/share/java/mx4j-tools.jar"