Matthew Skelton matthewskelton
matthewskelton
/ flows_sanitised.json
Created
October 24, 2017 18:47
Sample flow configuration for a Node-RED IoT application
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| [{ | |
| "id": "6ffd9e9e.4b3ea", | |
| "type": "tab", | |
| "label": "Flow 1" | |
| }, { | |
| "id": "d14dd126.35451", | |
| "type": "ttn app", | |
| "z": "", | |
| "appId": "matthewskelton-wutheringbytes-2017", | |
| "region": "eu", |
matthewskelton
/ gist:5950922
Created
July 8, 2013 17:50
Example of how ohai uses WMI under the hood to determine node data on Windows
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| # From https://github.com/opscode/ohai/blob/master/lib/ohai/plugins/windows/uptime.rb e803a3f | |
| require 'ruby-wmi' | |
| provides "uptime", "uptime_seconds" | |
| uptime_seconds ::WMI::Win32_PerfFormattedData_PerfOS_System.find(:first).SystemUpTime.to_i | |
| uptime self._seconds_to_human(uptime_seconds) |
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| C:\>sc config winmgmt start= demand | |
| [SC] ChangeServiceConfig SUCCESS | |
| C:\>sc stop winmgmt | |
| SERVICE_NAME: winmgmt | |
| STATE : 3 STOP_PENDING | |
| ... | |
| C:\>winmgmt /salvagerepository %windir%\System32\wbem | |
| WMI repository has been salvaged |
matthewskelton
/ gist:5949341
Created
July 8, 2013 14:33
chef-client output when WMI is not working on a Windows machine - 80041002 in SWbemLocator indicates that the WMI class is not found.
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| [2013-07-04T11:29:12+01:00] DEBUG: Loading plugin windows::uptime | |
| [2013-07-04T11:29:12+01:00] DEBUG: Plugin windows::uptime threw exception #<WIN32OLERuntimeError: (in OLE method `ConnectServer': ) | |
| OLE error code:80041002 in SWbemLocator | |
| Not found | |
| HRESULT error code:0x80020009 | |
| Exception occurred.> C:/opscode/chef/embedded/lib/ruby/gems/1.9.1/gems/rdp-ruby-wmi-0.3.1/lib/ruby-wmi/base.rb:131 | |
| :in `method_missing' | |
| C:/opscode/chef/embedded/lib/ruby/gems/1.9.1/gems/rdp-ruby-wmi-0.3.1/lib/ruby-wmi/base.rb:131:in `connection' | |
| C:/opscode/chef/embedded/lib/ruby/gems/1.9.1/gems/rdp-ruby-wmi-0.3.1/lib/ruby-wmi/base.rb:47:in `find_by_wql' |
matthewskelton
/ gist:5046121
Created
February 27, 2013 08:04
Outline of drawing an xmas tree with Graphite (see https://github.com/matthewskelton/GraphiteGreetings)
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| require 'Graphite' | |
| require 'Logger' | |
| # Change these as needed for your environment | |
| server = "my.graphite.server.url" | |
| log = Logger.new(STDOUT) | |
| prefix = "Test.Me.XmasTree." | |
| # Create the logger to send stats to Graphite with specific timings | |
| logger = Graphite::Logger.new(server,log) |