I wrote this in Feburary 2014, as a note to a friend, about solar. Though the market has changed, it might be useful to you.
My partner and I bought a house a couple years ago, and our roof is pretty ideal for solar. This fall, we spent awhile trying to understand the options, and we completed our installation in December. How programs work vary by state and year.
| rindge:graphs seph$ ./test-irr.rb | |
| -0.8461538461538315 | |
| -0.5233728905609968 | |
| -0.3055754160809478 | |
| -0.16941929133206396 | |
| -0.08153134104840357 | |
| -0.02240080635339052 | |
| 0.018877821951107262 | |
| -1.7310946662195288 | |
| 0.07055058069605046 |
| managed_directory nrpechef_dir do | |
| action :nothing | |
| notifies :restart, "service[nagios-nrpe-server]" | |
| end | |
| directory nrpechef_dir do | |
| owner "root" | |
| group "root" | |
| mode "0755" | |
| notifies :clean, "managed_directory[#{nrpechef_dir}]", :delayed | |
| end |
| class Chef::Recipe | |
| def find_nrpe_plugin(name) | |
| return name if name.start_with?("/") | |
| end | |
| end |
| # Create the ssh access key | |
| # | |
| # Something in the node.set lines happens at the *start* of the chef | |
| # run. It might be the node.set, or it might be the File.read, but | |
| # either way, it happens before the resource execution. To compensate | |
| # for this, we need to shift the ssh key creation to the start of the | |
| # run. http://docs.opscode.com/resource_common_compile.html | |
| sshfile = "/home/runtime/id_rsa" | |
| sshcomment = [ |
| db.foo.insert( {_id: 1}, { "$set": {param: "one" }} ) | |
| db.foo.update( | |
| { | |
| "_id": 1, | |
| "sub._id": 2 | |
| }, | |
| { $set: { "sub.$": { | |
| "param": 2, | |
| "place": "Boston" |
| def symlink_r(source, dest) | |
| # recursively symlinks a directory tree. | |
| # skips files that already exist. | |
| ::Dir.glob(::File.join(source, "**", "*")).each do |f| | |
| next if ::File.directory?(f) | |
| new_name = ::File.join(dest, f.gsub(/^#{source}/, "") ) | |
| next if ::File.exists?(new_name) or ::File.symlink?(new_name) | |
| ::FileUtils.mkdir_p(::File.dirname(new_name)) | |
| #puts "trying #{f} => #{new_name}" | |
| ::File.symlink(f, new_name) |
| #!/usr/bin/env ruby | |
| # we're seeing some odd slowdown on hosts. It kind of looks like the | |
| # host is pausing for some number of milliseconds, which hits the | |
| # various ruby processes. It would be nice if we understood what was | |
| # happening. This is a small script to help understand it. | |
| # theory: | |
| # Do work that takes about N | |
| # Measure elapsed time M |
| git whittemore:tmp seph$ git clone https://github.com/andersk/mosh.git | |
| Cloning into mosh... | |
| remote: Counting objects: 2305, done. | |
| remote: Compressing objects: 100% (713/713), done. | |
| remote: Total 2305 (delta 1627), reused 2247 (delta 1571) | |
| Receiving objects: 100% (2305/2305), 504.41 KiB | 517 KiB/s, done. | |
| Resolving deltas: 100% (1627/1627), done. | |
| whittemore:tmp seph$ cd mosh/ | |
| whittemore:mosh seph$ git checkout macosx | |
| Branch macosx set up to track remote branch macosx from origin. |
| export PATH="/Users/seph/homebrew/bin:$PATH" | |
| tar xzf /Users/seph/mosh-0.96a.tar.gz | |
| cd mosh-0.96a | |
| ./configure --prefix=/tmp/mosh --with-boost=/Users/seph/homebrew/ | |
| make |