Cleanup collectd-generic graphite playbook

* No need for selinux policy if collectd_t domain is set to permissive
* Graphite dashboard defaults to graphite "cloud name"
* Added to Monitor Host docs to monitor the monitor host
* collectd.conf for Graphite fixes (collectd, carbon-relay, carbon-aggregator)
* collectd.conf auto ship to localhost and use graphite as prefix
* Allow collectd write_graphite port to be configured from playbooks thus
  allowing for future use of carbon-relay
* Improve Graphite Carbon-cache metrics to expose multiple carbon-cache metrics
* Update Graphite/Baremetal/Guest Dashboards Disk/DF portion of Dashboard

Change-Id: I9286bee506045fa89d5c9919327d3e4f77fb07f3

ansible/install/group_vars/all.yml

@@ -95,6 +95,8 @@ connmon_host: 192.0.2.1
 collectd_from_epel: true
 # Interval in seconds
 collectd_interval: 10
+# Typically: carbon-cache port=2003 or Graphite with carbon-relay=2013
+collectd_write_graphite_port: 2003
 # Run collectd on specific openstack nodes:
 collectd_undercloud: true
 collectd_controller: true

ansible/install/roles/collectd-generic/tasks/main.yml

@@ -1,29 +1,30 @@
 ---
 #
-# Install/run collectd for browbeat (Generic)
+# Install/run Collectd for Browbeat (Generic)
 #
 
-#
-# (akrzos) yum module works at this point due to the fact the EPEL repo now exists.  EPEL rpm is
-# installed at this point in time.
-#
 - name: Install collectd rpms
-  yum: name={{ item }} state=present
+  yum:
+    name: "{{ item }}"
+    state: present
   become: true
   with_items: "{{collectd_packages[config_type]}}"
 
-- name: Configure collectd.conf
-  template:
-    src={{config_type}}.collectd.conf.j2
-    dest=/etc/collectd.conf
-    owner=root
-    group=root
-    mode="0644"
+- name: Install package that provides semanage
+  yum:
+    name: policycoreutils-python
+    state: present
+  become: true
+
+- name: Configure collectd.conf
+  template:
+    src: "{{config_type}}.collectd.conf.j2"
+    dest: /etc/collectd.conf
+    owner: root
+    group: root
+    mode: 0644
   become: true
 
-#
-# Configure selinux bits
-#
 - name: Check for collectd permissive
   shell: semodule -l | grep -q permissive_collectd_t
   become: true
@@ -31,41 +32,15 @@
   ignore_errors: true
   changed_when: false
 
-# This command is not always found?
 - name: Set permissive for collectd
   command: semanage permissive -a collectd_t
   become: true
   when: collectd_permissive.rc != 0
   ignore_errors: true
 
-#
-# Additional policy bits may be needed for exec
-#
-- name: Collectd policy customization
-  copy:
-    src=custom-collectd.pp
-    dest=/root/custom-collectd.pp
-    owner=root
-    group=root
-    mode="0644"
-  become: true
-
-- name: Check for collectd custom
-  command: semodule -l | grep -q custom-collectd
-  become: true
-  register: collectd_custom
-  ignore_errors: true
-  changed_when: false
-
-- name: Set custom policy for collectd
-  command: semodule -i /root/custom-collectd.pp
-  become: true
-  when: collectd_custom.rc != 0
-
-#
-# Start collectd service
-#
 - name: Setup collectd service
-  service: name=collectd state=restarted enabled=true
+  service:
+    name: collectd
+    state: restarted
+    enabled: true
   become: true
-

ansible/install/roles/collectd-generic/templates/baremetal.collectd.conf.j2

@@ -42,7 +42,7 @@ LoadPlugin uptime
 <Plugin write_graphite>
   <Carbon>
     Host "{{graphite_host}}"
-    Port "2003"
+    Port "{{collectd_write_graphite_port}}"
     Prefix "{{graphite_prefix}}."
     Protocol "tcp"
     LogSendErrors true
@@ -53,11 +53,40 @@ LoadPlugin uptime
 </Plugin>
 
 <Plugin df>
+  FSType anon_inodefs
+  FSType bdev
+  FSType cgroup
+  FSType cpuset
+  FSType debugfs
+  FSType devpts
+  FSType devtmpfs
+  FSType ecryptfs
+  FSType fuse
+  FSType fusectl
+  FSType hugetlbfs
+  FSType mqueue
+  FSType nfs
+  FSType nfs4
+  FSType nfsd
+  FSType pipefs
+  FSType proc
+  FSType pstore
+  FSType ramfs
+  #FSType rootfs
+  FSType rpc_pipefs
+  FSType securityfs
+  FSType sockfs
+  FSType sysfs
+  FSType tmpfs
+  FSType vboxsf
+  IgnoreSelected true
   ValuesPercentage true
+  ReportInodes true
 </Plugin>
 
 <Plugin disk>
   Disk "/^[hsv]d[a-z]+[0-9]?$/"
+  Disk "/^nvm/"
   IgnoreSelected false
 </Plugin>
 

ansible/install/roles/collectd-generic/templates/graphite.collectd.conf.j2

@@ -4,9 +4,6 @@
 # Interval default is 10s
 Interval {{collectd_interval}}
 
-# Hostname for this machine, if not defined, use gethostname(2) system call
-Hostname "{{inventory_hostname}}"
-
 # Loaded Plugins:
 LoadPlugin "logfile"
 <Plugin "logfile">
@@ -41,9 +38,9 @@ LoadPlugin uptime
 # Graphite Host Configuration
 <Plugin write_graphite>
   <Carbon>
-    Host "{{graphite_host}}"
-    Port "2003"
-    Prefix "{{graphite_prefix}}."
+    Host "localhost"
+    Port "{{collectd_write_graphite_port}}"
+    Prefix "graphite."
     Protocol "tcp"
     LogSendErrors true
     StoreRates true
@@ -53,20 +50,51 @@ LoadPlugin uptime
 </Plugin>
 
 <Plugin df>
+  FSType anon_inodefs
+  FSType bdev
+  FSType cgroup
+  FSType cpuset
+  FSType debugfs
+  FSType devpts
+  FSType devtmpfs
+  FSType ecryptfs
+  FSType fuse
+  FSType fusectl
+  FSType hugetlbfs
+  FSType mqueue
+  FSType nfs
+  FSType nfs4
+  FSType nfsd
+  FSType pipefs
+  FSType proc
+  FSType pstore
+  FSType ramfs
+  #FSType rootfs
+  FSType rpc_pipefs
+  FSType securityfs
+  FSType sockfs
+  FSType sysfs
+  FSType tmpfs
+  FSType vboxsf
+  IgnoreSelected true
   ValuesPercentage true
+  ReportInodes true
 </Plugin>
 
 <Plugin disk>
   Disk "/^[hsv]d[a-z]+[0-9]?$/"
+  Disk "/^nvm/"
   IgnoreSelected false
 </Plugin>
 
 <Plugin processes>
   ProcessMatch "carbon-cache" "python.+carbon-cache"
+  ProcessMatch "carbon-relay" "python.+carbon-relay"
+  ProcessMatch "carbon-aggregator" "python.+carbon-aggregator"
   Process "grafana-server"
   Process "httpd"
   # Collect on collectd process
-  ProcessMatch "collectd" "/usr/sbin/collectd.+-C.+/etc/collectd.conf"
+  Process "collectd"
 </Plugin>
 
 <Plugin swap>

ansible/install/roles/collectd-generic/templates/guest.collectd.conf.j2

@@ -40,7 +40,7 @@ LoadPlugin uptime
 <Plugin write_graphite>
   <Carbon>
     Host "{{graphite_host}}"
-    Port "2003"
+    Port "{{collectd_write_graphite_port}}"
     Prefix "{{graphite_prefix}}."
     Protocol "tcp"
     LogSendErrors true
@@ -51,11 +51,40 @@ LoadPlugin uptime
 </Plugin>
 
 <Plugin df>
+  FSType anon_inodefs
+  FSType bdev
+  FSType cgroup
+  FSType cpuset
+  FSType debugfs
+  FSType devpts
+  FSType devtmpfs
+  FSType ecryptfs
+  FSType fuse
+  FSType fusectl
+  FSType hugetlbfs
+  FSType mqueue
+  FSType nfs
+  FSType nfs4
+  FSType nfsd
+  FSType pipefs
+  FSType proc
+  FSType pstore
+  FSType ramfs
+  #FSType rootfs
+  FSType rpc_pipefs
+  FSType securityfs
+  FSType sockfs
+  FSType sysfs
+  FSType tmpfs
+  FSType vboxsf
+  IgnoreSelected true
   ValuesPercentage true
+  ReportInodes true
 </Plugin>
 
 <Plugin disk>
   Disk "/^[hsv]d[a-z]+[0-9]?$/"
+  Disk "/^nvm/"
   IgnoreSelected false
 </Plugin>
 

ansible/install/roles/collectd-openstack/defaults/main.yml

@@ -5,6 +5,8 @@
 collectd_from_epel: true
 # Interval in seconds
 collectd_interval: 10
+# Typically: carbon-cache port=2003 or Graphite with carbon-relay=2013
+collectd_write_graphite_port: 2003
 # Run collectd on specific openstack nodes:
 collectd_undercloud: true
 collectd_controller: true

ansible/install/roles/collectd-openstack/templates/blockstorage.collectd.conf.j2

@@ -71,7 +71,7 @@ PreCacheChain "PreCache"
 <Plugin write_graphite>
   <Carbon>
     Host "{{graphite_host}}"
-    Port "2003"
+    Port "{{collectd_write_graphite_port}}"
     Prefix "{{graphite_prefix}}."
     Protocol "tcp"
     LogSendErrors true

ansible/install/roles/collectd-openstack/templates/cephstorage.collectd.conf.j2

@@ -74,7 +74,7 @@ PreCacheChain "PreCache"
 <Plugin write_graphite>
   <Carbon>
     Host "{{graphite_host}}"
-    Port "2003"
+    Port "{{collectd_write_graphite_port}}"
     Prefix "{{graphite_prefix}}."
     Protocol "tcp"
     LogSendErrors true

ansible/install/roles/collectd-openstack/templates/compute.collectd.conf.j2

@@ -71,7 +71,7 @@ PreCacheChain "PreCache"
 <Plugin write_graphite>
   <Carbon>
     Host "{{graphite_host}}"
-    Port "2003"
+    Port "{{collectd_write_graphite_port}}"
     Prefix "{{graphite_prefix}}."
     Protocol "tcp"
     LogSendErrors true

ansible/install/roles/collectd-openstack/templates/controller.collectd.conf.j2

@@ -85,7 +85,7 @@ PreCacheChain "PreCache"
 <Plugin write_graphite>
   <Carbon>
     Host "{{graphite_host}}"
-    Port "2003"
+    Port "{{collectd_write_graphite_port}}"
     Prefix "{{graphite_prefix}}."
     Protocol "tcp"
     LogSendErrors true

ansible/install/roles/collectd-openstack/templates/objectstorage.collectd.conf.j2

@@ -71,7 +71,7 @@ PreCacheChain "PreCache"
 <Plugin write_graphite>
   <Carbon>
     Host "{{graphite_host}}"
-    Port "2003"
+    Port "{{collectd_write_graphite_port}}"
     Prefix "{{graphite_prefix}}."
     Protocol "tcp"
     LogSendErrors true

ansible/install/roles/collectd-openstack/templates/undercloud.collectd.conf.j2

@@ -87,7 +87,7 @@ PreCacheChain "PreCache"
 <Plugin write_graphite>
   <Carbon>
     Host "{{graphite_host}}"
-    Port "2003"
+    Port "{{collectd_write_graphite_port}}"
     Prefix "{{graphite_prefix}}."
     Protocol "tcp"
     LogSendErrors true

ansible/install/roles/grafana-dashboards/templates/baremetal_general_system_performance.json.j2

@@ -1243,6 +1243,86 @@
               "percent",
               "ms"
             ]
+          }
+        ],
+        "showTitle": true,
+        "title": "Disk"
+      },
+      {
+        "collapse": true,
+        "editable": true,
+        "height": "200px",
+        "panels": [
+          {
+            "aliasColors": {},
+            "bars": false,
+            "datasource": null,
+            "editable": true,
+            "error": false,
+            "fill": 0,
+            "grid": {
+              "leftLogBase": 1,
+              "leftMax": 100,
+              "leftMin": 0,
+              "rightLogBase": 1,
+              "rightMax": null,
+              "rightMin": null,
+              "threshold1": null,
+              "threshold1Color": "rgba(216, 200, 27, 0.27)",
+              "threshold2": null,
+              "threshold2Color": "rgba(234, 112, 112, 0.22)"
+            },
+        {% if vars.update({'panel_idx': (vars.panel_idx + 1)}) %} {% endif %}
+            "id": {{vars.panel_idx}},
+            "isNew": true,
+            "legend": {
+              "alignAsTable": true,
+              "avg": true,
+              "current": true,
+              "max": true,
+              "min": true,
+              "rightSide": true,
+              "show": true,
+              "total": false,
+              "values": true
+            },
+            "lines": true,
+            "linewidth": 2,
+            "links": [],
+            "nullPointMode": "null",
+            "percentage": false,
+            "pointradius": 5,
+            "points": false,
+            "renderer": "flot",
+            "seriesOverrides": [
+              {
+                "alias": "Write",
+                "transform": "negative-Y"
+              }
+            ],
+            "span": 12,
+            "stack": false,
+            "steppedLine": false,
+            "targets": [
+              {
+                "refId": "A",
+                "target": "aliasByNode(aliasSub($Cloud.$Node.df-*.percent_bytes-used, 'df-', ''), 2)"
+              }
+            ],
+            "timeFrom": null,
+            "timeShift": null,
+            "title": "$Cloud - $Node -  Partition % Used",
+            "tooltip": {
+              "shared": true,
+              "value_type": "individual"
+            },
+            "type": "graph",
+            "x-axis": true,
+            "y-axis": true,
+            "y_formats": [
+              "percent",
+              "short"
+            ]
           },
           {
             "aliasColors": {},
@@ -1297,13 +1377,12 @@
             "targets": [
               {
                 "refId": "A",
-                "target": "aliasByNode(aliasSub($Cloud.$Node.df-*.percent_bytes-used, 'df-', ''), 2)",
-                "textEditor": false
+                "target": "aliasByNode(aliasSub($Cloud.$Node.df-*.percent_inodes-used, 'df-', ''), 2)"
               }
             ],
             "timeFrom": null,
             "timeShift": null,
-            "title": "$Cloud - $Node -  Partition % Used",
+            "title": "$Cloud - $Node -  Inodes % Used",
             "tooltip": {
               "shared": true,
               "value_type": "individual"
@@ -1318,7 +1397,7 @@
           }
         ],
         "showTitle": true,
-        "title": "Disk"
+        "title": "DF"
       },
       {
         "collapse": true,

ansible/install/roles/grafana-dashboards/templates/graphite_general_system_performance.json.j2

@@ -1243,6 +1243,86 @@
               "percent",
               "ms"
             ]
+          }
+        ],
+        "showTitle": true,
+        "title": "Disk"
+      },
+      {
+        "collapse": true,
+        "editable": true,
+        "height": "200px",
+        "panels": [
+          {
+            "aliasColors": {},
+            "bars": false,
+            "datasource": null,
+            "editable": true,
+            "error": false,
+            "fill": 0,
+            "grid": {
+              "leftLogBase": 1,
+              "leftMax": 100,
+              "leftMin": 0,
+              "rightLogBase": 1,
+              "rightMax": null,
+              "rightMin": null,
+              "threshold1": null,
+              "threshold1Color": "rgba(216, 200, 27, 0.27)",
+              "threshold2": null,
+              "threshold2Color": "rgba(234, 112, 112, 0.22)"
+            },
+        {% if vars.update({'panel_idx': (vars.panel_idx + 1)}) %} {% endif %}
+            "id": {{vars.panel_idx}},
+            "isNew": true,
+            "legend": {
+              "alignAsTable": true,
+              "avg": true,
+              "current": true,
+              "max": true,
+              "min": true,
+              "rightSide": true,
+              "show": true,
+              "total": false,
+              "values": true
+            },
+            "lines": true,
+            "linewidth": 2,
+            "links": [],
+            "nullPointMode": "null",
+            "percentage": false,
+            "pointradius": 5,
+            "points": false,
+            "renderer": "flot",
+            "seriesOverrides": [
+              {
+                "alias": "Write",
+                "transform": "negative-Y"
+              }
+            ],
+            "span": 12,
+            "stack": false,
+            "steppedLine": false,
+            "targets": [
+              {
+                "refId": "A",
+                "target": "aliasByNode(aliasSub($Cloud.$Node.df-*.percent_bytes-used, 'df-', ''), 2)"
+              }
+            ],
+            "timeFrom": null,
+            "timeShift": null,
+            "title": "$Cloud - $Node -  Partition % Used",
+            "tooltip": {
+              "shared": true,
+              "value_type": "individual"
+            },
+            "type": "graph",
+            "x-axis": true,
+            "y-axis": true,
+            "y_formats": [
+              "percent",
+              "short"
+            ]
           },
           {
             "aliasColors": {},
@@ -1297,13 +1377,12 @@
             "targets": [
               {
                 "refId": "A",
-                "target": "aliasByNode(aliasSub($Cloud.$Node.df-*.percent_bytes-used, 'df-', ''), 2)",
-                "textEditor": false
+                "target": "aliasByNode(aliasSub($Cloud.$Node.df-*.percent_inodes-used, 'df-', ''), 2)"
               }
             ],
             "timeFrom": null,
             "timeShift": null,
-            "title": "$Cloud - $Node -  Partition % Used",
+            "title": "$Cloud - $Node -  Inodes % Used",
             "tooltip": {
               "shared": true,
               "value_type": "individual"
@@ -1318,7 +1397,7 @@
           }
         ],
         "showTitle": true,
-        "title": "Disk"
+        "title": "DF"
       },
       {
         "collapse": true,
@@ -2504,7 +2583,7 @@
     {% endfor %}
 {# End Loop over per-process options here #}
       {
-        "title": "Carbon Metrics",
+        "title": "Carbon Cache Metrics",
         "height": "250px",
         "editable": true,
         "collapse": true,
@@ -2568,15 +2647,15 @@
             "targets": [
               {
                 "refId": "A",
-                "target": "aliasByNode(carbon.agents.*.metricsReceived, 3)"
+                "target": "aliasByNode(aliasSub(carbon.agents.*.metricsReceived, '[a-zA-Z0-9_]+-', ''), 2, 3)"
               },
               {
                 "refId": "B",
-                "target": "aliasByNode(carbon.agents.*.committedPoints, 3)"
+                "target": "aliasByNode(aliasSub(carbon.agents.*.committedPoints, '[a-zA-Z0-9_]+-', ''), 2, 3)"
               },
               {
                 "refId": "C",
-                "target": "aliasByNode(carbon.agents.*.updateOperations, 3)"
+                "target": "aliasByNode(aliasSub(carbon.agents.*.updateOperations, '[a-zA-Z0-9_]+-', ''), 2, 3)"
               }
             ],
             "aliasColors": {},
@@ -2643,7 +2722,7 @@
             "targets": [
               {
                 "refId": "A",
-                "target": "aliasByNode(carbon.agents.*.avgUpdateTime, 3)"
+                "target": "aliasByNode(aliasSub(carbon.agents.*.avgUpdateTime, '[a-zA-Z0-9_]+-', ''), 2, 3)"
               }
             ],
             "aliasColors": {},
@@ -2710,7 +2789,7 @@
             "targets": [
               {
                 "refId": "A",
-                "target": "aliasByNode(carbon.agents.*.creates, 3)"
+                "target": "aliasByNode(aliasSub(carbon.agents.*.creates, '[a-zA-Z0-9_]+-', ''), 2, 3)"
               }
             ],
             "aliasColors": {},
@@ -2777,7 +2856,7 @@
             "targets": [
               {
                 "refId": "A",
-                "target": "aliasByNode(carbon.agents.*.cache.*, 4)"
+                "target": "aliasByNode(aliasSub(carbon.agents.*.cache.*, '[a-zA-Z0-9_]+-', ''), 2, 3)"
               }
             ],
             "aliasColors": {},
@@ -2844,11 +2923,11 @@
             "targets": [
               {
                 "refId": "A",
-                "target": "aliasByNode(carbon.agents.*.blacklistMatches, 3)"
+                "target": "aliasByNode(aliasSub(carbon.agents.*.blacklistMatches, '[a-zA-Z0-9_]+-', ''), 2, 3)"
               },
               {
                 "refId": "B",
-                "target": "aliasByNode(carbon.agents.*.whitelistRejects, 3)"
+                "target": "aliasByNode(aliasSub(carbon.agents.*.whitelistRejects, '[a-zA-Z0-9_]+-', ''), 2, 3)"
               }
             ],
             "aliasColors": {},
@@ -2915,7 +2994,7 @@
             "targets": [
               {
                 "refId": "C",
-                "target": "aliasByNode(carbon.agents.*.errors, 3)"
+                "target": "aliasByNode(aliasSub(carbon.agents.*.errors, '[a-zA-Z0-9_]+-', ''), 2, 3)"
               }
             ],
             "aliasColors": {},
@@ -3011,8 +3090,8 @@
         {
           "allFormat": "glob",
           "current": {
-            "text": "None",
-            "value": "None"
+            "text": "graphite",
+            "value": "graphite"
           },
           "datasource": null,
           "includeAll": false,

ansible/install/roles/grafana-dashboards/templates/guest_general_system_performance.json.j2

@@ -1243,6 +1243,86 @@
               "percent",
               "ms"
             ]
+          }
+        ],
+        "showTitle": true,
+        "title": "Disk"
+      },
+      {
+        "collapse": true,
+        "editable": true,
+        "height": "200px",
+        "panels": [
+          {
+            "aliasColors": {},
+            "bars": false,
+            "datasource": null,
+            "editable": true,
+            "error": false,
+            "fill": 0,
+            "grid": {
+              "leftLogBase": 1,
+              "leftMax": 100,
+              "leftMin": 0,
+              "rightLogBase": 1,
+              "rightMax": null,
+              "rightMin": null,
+              "threshold1": null,
+              "threshold1Color": "rgba(216, 200, 27, 0.27)",
+              "threshold2": null,
+              "threshold2Color": "rgba(234, 112, 112, 0.22)"
+            },
+        {% if vars.update({'panel_idx': (vars.panel_idx + 1)}) %} {% endif %}
+            "id": {{vars.panel_idx}},
+            "isNew": true,
+            "legend": {
+              "alignAsTable": true,
+              "avg": true,
+              "current": true,
+              "max": true,
+              "min": true,
+              "rightSide": true,
+              "show": true,
+              "total": false,
+              "values": true
+            },
+            "lines": true,
+            "linewidth": 2,
+            "links": [],
+            "nullPointMode": "null",
+            "percentage": false,
+            "pointradius": 5,
+            "points": false,
+            "renderer": "flot",
+            "seriesOverrides": [
+              {
+                "alias": "Write",
+                "transform": "negative-Y"
+              }
+            ],
+            "span": 12,
+            "stack": false,
+            "steppedLine": false,
+            "targets": [
+              {
+                "refId": "A",
+                "target": "aliasByNode(aliasSub($Cloud.$Node.df-*.percent_bytes-used, 'df-', ''), 2)"
+              }
+            ],
+            "timeFrom": null,
+            "timeShift": null,
+            "title": "$Cloud - $Node -  Partition % Used",
+            "tooltip": {
+              "shared": true,
+              "value_type": "individual"
+            },
+            "type": "graph",
+            "x-axis": true,
+            "y-axis": true,
+            "y_formats": [
+              "percent",
+              "short"
+            ]
           },
           {
             "aliasColors": {},
@@ -1297,13 +1377,12 @@
             "targets": [
               {
                 "refId": "A",
-                "target": "aliasByNode(aliasSub($Cloud.$Node.df-*.percent_bytes-used, 'df-', ''), 2)",
-                "textEditor": false
+                "target": "aliasByNode(aliasSub($Cloud.$Node.df-*.percent_inodes-used, 'df-', ''), 2)"
               }
             ],
             "timeFrom": null,
             "timeShift": null,
-            "title": "$Cloud - $Node -  Partition % Used",
+            "title": "$Cloud - $Node -  Inodes % Used",
             "tooltip": {
               "shared": true,
               "value_type": "individual"
@@ -1318,7 +1397,7 @@
           }
         ],
         "showTitle": true,
-        "title": "Disk"
+        "title": "DF"
       },
       {
         "collapse": true,

ansible/install/roles/grafana-dashboards/vars/main.yml

@@ -553,11 +553,15 @@ per_process_panels:
     - name: "Summerized"
       processes:
         - carbon-cache
+        - carbon-relay
+        - carbon-aggregator
         - grafana-server
         - httpd
     - name: "Carbon"
       processes:
         - carbon-cache
+        - carbon-relay
+        - carbon-aggregator
     - name: "Grafana"
       processes:
         - grafana-server

doc/source/installation.rst

@@ -492,6 +492,13 @@ variables - graphite_host and grafana_host
   [root@dhcp23-93 ansible]# ansible-playbook -i hosts install/grafana-dashboards.yml -e 'cloud_dashboards=false'
   ...
 
+10. (Optional) Monitor the Monitor Host
+
+::
+
+  [root@dhcp23-93 ansible]# ansible-playbook -i hosts install/collectd-generic.yml --tags graphite
+  ...
+
 Now navigate to http://monitoring-host-address:3000 to verify Grafana is
 installed, the Graphite data source exists and custom dashboards are uploaded.