Modified cluster purge logic slightly (due to extra/dirty data being kept in...

Modified cluster purge logic slightly (due to extra/dirty data being kept in the WAL). Added sane, non-destructive defaults.

cluster-test.yml

@@ -4,9 +4,8 @@
     - vars/main.yml
   tasks:
     - include: tasks/main.yml
-      influxdb_install_url: https://s3-us-west-1.amazonaws.com/influxdata-downloads/influxdb_0.10.0-0.meta-service_amd64.deb
       influxdb_cluster_servers: yes
-      influxdb_monitor_store_enabled: "false"
       influxdb_purge_peer_data: yes
+      influxdb_overwrite_hosts_file: yes
   handlers:
     - include: handlers/main.yml

defaults/main.yml

@@ -9,7 +9,7 @@ influxdb_install_version: stable
 influxdb_cluster_servers: no
 # When clustering is enabled, whether or not to overwrite the /etc/hosts file with raw
 # IPs (may be useful if no DNS resolution).
-influxdb_overwrite_hosts_file: yes
+influxdb_overwrite_hosts_file: no
 
 # Whether to load sample data (randomly generated integers) into a test database
 # NOTE: sample data cannot be loaded if authentication is enabled

tasks/cluster.yml

@@ -22,10 +22,10 @@
     path: "{{ item }}"
     state: absent
   with_items:
-    - "{{ influxdb_meta_dir }}/id"
-    - "{{ influxdb_meta_dir }}/raft.db"
-    - "{{ influxdb_meta_dir }}/peers.json"
-  when: influxdb_cluster_set.changed or influxdb_purge_peer_data
+    - "{{ influxdb_meta_dir }}"
+    - "{{ influxdb_data_dir }}"
+    - "{{ influxdb_data_wal_dir }}"
+  when: influxdb_purge_peer_data
   
 # - name: Start InfluxDB
 #   service: