first commit

roles/zookeeper/tasks/cat_myid.yml

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+---
+- name: cat zookeeper id
+  shell: cat /data/zookeeper/data/myid
+  register: output
+- name: print zookeeper id
+  debug:
+    msg: "zookeeper id: {{ output.stdout }}"
+

roles/zookeeper/tasks/main.yml

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+---
+- import_tasks: "{{task|lower}}.yml"
+

roles/zookeeper/tasks/restart_service.yml

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+---
+- name: restart zookeeper
+  service: name=zookeeper state=restarted
+

roles/zookeeper/tasks/start_service.yml

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+---
+- name: start zookeeper
+  service: name=zookeeper state=started
+

roles/zookeeper/tasks/stop_service.yml

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+---
+- name: stop zookeeper
+  service: name=zookeeper state=stopped
+