initial commit

README.md

@@ -0,0 +1,19 @@
+# playbook for installing gluster 6.1.
+
+## Nodes
+This role sets up 3 servers. All have a secondary data disk attached.
+
+## Create gluster: 2 replica and 1 arbiter
+Run these on gluster-a1:
+
+```
+gluster peer probe gluster-s1
+gluster peer probe gluster-s2
+gluster vol create gv0 replica 2 arbiter 1 gluster-s1:/.gluster/brick1 gluster-s2:/.gluster/brick1 gluster-a1:/.gluster/brick1
+gluster vol start gv0
+gluster vol set gv0 performance.cache-size256MB
+gluster vol set gv0 performance.cache-size 256MB
+gluster vol set gv0 nfs.disable On
+gluster vol set gv0 server.event-threads 12
+gluster vol set gv0 client.event-threads 4
+```

tasks/main.yml

@@ -0,0 +1,59 @@
+  - name: Install EPEL
+    yum: 
+      name: 
+        - epel-release
+      state: latest
+
+  - name: Write hosts file
+    blockinfile:
+      path: /etc/hosts
+      block: |
+        10.66.2.47 gluster-s1
+        10.66.2.178 gluster-s2
+        10.66.2.107 gluster-a1
+
+  - name: Check if /.gluster/brick1 is already created
+    stat:
+      path: /.gluster/brick1
+    register: brickDir
+
+  - name: format and mount data disk
+    block: 
+    - filesystem:
+        fstype: ext4
+        dev: /dev/nvme1n1
+        opts: -O dir_index -Ldata
+
+    - file:
+        path: /.gluster/brick1
+        state: directory
+
+    - mount: 
+        path: /.gluster
+        src: LABEL=data
+        fstype: ext4
+        opts: noatime,nodiratime
+        state: mounted
+
+    - file:
+        path: /.gluster/brick1
+        state: directory
+    when: not brickDir.stat.exists
+ 
+  - name: Install gluster repo
+    yum:
+      name:
+        - centos-release-gluster6
+      state: latest
+ 
+  - name: Intall glusterfs
+    yum:
+      name: 
+        - glusterfs-server
+        - glusterfs-fuse
+
+  - name: Start up glusterd
+    service:
+      name: glusterd
+      state: started
+      enabled: yes