First stab at a gluster role for the nuancier staging nodes.

2 files changed, 77 insertions, 0 deletions

diff --git a/roles/gluster/client/tasks/main.yml b/roles/gluster/client/tasks/main.yml
new file mode 100644
index 000000000..065161139
--- /dev/null
+++ b/roles/gluster/client/tasks/main.yml
@@ -0,0 +1,23 @@
+---
+
+- name: install needed packages
+  yum: pkg={{ item }} state=installed
+  with_items:
+  - glusterfs-fuse
+  tags:
+  - packages
+
+- name: make the mountdir
+  file: dest={{ mountdir }} owner={{ owner }} group={{ group }}
+
+- name: copy over the client config
+  template: src=client.config dest=/etc/glusterfs/glusterfs.{{name}}.vol
+  #notify:
+  #- remount?  no idea...
+  
+- name: mount it up
+  mount: >
+    src=/etc/glusterfs/glusterfs.{{name}}.vol
+    state=mounted 
+    fstype=glusterfs
+    opts=noatime
diff --git a/roles/gluster/client/templates/client.config b/roles/gluster/client/templates/client.config
new file mode 100644
index 000000000..65c414a3c
--- /dev/null
+++ b/roles/gluster/client/templates/client.config
@@ -0,0 +1,54 @@
+# Config for {{ name }}
+# Generated by ansible
+
+{% for server in servers %}
+volume vol-<%= servers.index(server) %>
+	type protocol/client
+	option transport-type tcp
+	option remote-host <%= server %>
+	option transport.socket.nodelay on
+	option remote-port 6996
+	option remote-subvolume iothreads
+	option username <%= username %>
+	option password <%= password %>
+end-volume
+{% endfor %}
+
+volume mirror-0
+	type cluster/replicate
+	subvolumes {% for i in range(len(servers)) %}vol-#{{i}} {% endfor %}
+	{% if servers.index(ansible_hostname) %}
+	option read-subvolume vol-{{ servers.index(ansible_hostname)}}
+    {% endif %}
+end-volume
+
+volume writebehind
+	type performance/write-behind
+	option cache-size 4MB
+	# option flush-behind on	# olecam: increasing the performance of handling lots of small files
+	subvolumes mirror-0
+end-volume
+
+volume iothreads
+	type performance/io-threads
+	option thread-count 16 # default is 16
+	subvolumes writebehind
+end-volume
+
+volume iocache
+	type performance/io-cache
+	option cache-size `grep 'MemTotal' /proc/meminfo  | awk '{print $2 * 0.2 / 1024}' | cut -f1 -d.`MB
+	option cache-timeout 30
+	subvolumes iothreads
+end-volume
+
+volume statprefetch
+	type performance/stat-prefetch
+	subvolumes iocache
+end-volume
+
+#volume nfs-server
+#	type nfs/server
+#	option nfs.dynamic-volumes on
+#	subvolumes mirror-0
+#end-volume