cassandra dev specific version

cassandra/tasks/main.yml

@@ -16,6 +16,37 @@
   ignore_errors: True
   tags: cassandra
 
+- name: Install a specific version of cassandra server
+  apt: pkg={{ item }}={{ cassandra_version }} state=present
+  with_items:
+    - cassandra
+  when:
+    - cassandra_install_from_external_repo
+    - cassandra_install_packages
+    - not cassandra_latest_version
+  tags: cassandra
+
+- name: Install a specific version of cassandra tools
+  apt: pkg={{ item }}={{ cassandra_version }} state=present
+  with_items:
+    - cassandra-tools
+  when:
+    - cassandra_install_from_external_repo
+    - cassandra_install_packages
+    - not cassandra_latest_version
+  tags: cassandra
+
+- name: hold the version of cassandra server
+  action: shell apt-mark hold {{ item }}
+  with_items:
+    - cassandra
+    - cassandra-tools
+  when:
+    - cassandra_install_from_external_repo
+    - cassandra_install_packages
+    - not cassandra_latest_version
+  tags: cassandra
+
 - name: Install the latest version of cassandra server
   apt: pkg={{ item }} state=latest
   with_items:
@@ -27,7 +58,7 @@
     - cassandra_latest_version
   tags: cassandra
 
-- name: Ensure mongodb is started
+- name: Ensure cassandra is started
   service: name=cassandra state=started enabled=yes
   when: ( cassandra_start_server is defined ) and ( cassandra_start_server == 'yes' )
   tags: cassandra