Add a task for setting the admin user's password

This task will allow you to change the admin user's password without
having to remember the curl command for the Grafana API.

README.md

@@ -17,6 +17,7 @@
 1. [Usage](#usage)
     * [Classes and Defined Types](#classes-and-defined-types)
     * [Advanced usage](#advanced-usage)
+1. [Tasks](#tasks)
 1. [Limitations](#limitations)
 1. [Copyright and License](#copyright-and-license)
 
@@ -864,6 +865,20 @@ the filesystem of the puppetserver/master. Thus you may specify a
 local directory with grafana dashboards you wish to provision into
 grafana.
 
+## Tasks
+
+### `change_grafana_admin_password`
+
+`old_password`: the old admin password
+
+`new_password`: the password you want to use for the admin user
+
+`uri`: `http` or `https`
+
+`port`: the port Grafana runs on locally
+
+This task can be used to change the password for the admin user in grafana
+
 ## Limitations
 
 This module has been tested on Ubuntu 14.04, using each of the 'archive', 'docker'

tasks/change_grafana_admin_password.json

@@ -0,0 +1,25 @@
+{
+  "puppet_task_version": 1,
+  "supports_noop": false,
+  "description": "Change the Grafana admin user's password",
+  "parameters": {
+    "old_password": {
+      "description": "The old admin password",
+      "type": "Optional[String[1]]",
+      "sensitive": true
+    },
+    "new_password": {
+      "description": "The new admin password",
+      "type": "Optional[String[1]]",
+      "sensitive": true
+    },
+    "uri": {
+      "description": "http or https",
+      "type": "Enum['http','https']"
+    },
+    "port": {
+      "description": "The port Grafana is running on",
+      "type": "Integer"
+    }
+  }
+}

tasks/change_grafana_admin_password.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+payload="{
+    \"oldPassword\": \"$PT_old_password\",
+    \"newPassword\": \"$PT_new_password\",
+    \"confirmNew\": \"$PT_new_password\"
+}"
+
+cmd="/usr/bin/curl -X PUT -H 'Content-Type: application/json' -d '$payload' '$PT_uri://admin:$PT_old_password@localhost:$PT_port/api/user/password'"
+eval "$cmd"