Merge pull request #160 from leahpar/master

supervisord support

data/export/supervisord/app.conf.erb

@@ -0,0 +1,21 @@
+<%
+engine.procfile.entries.each do |process|
+  next if (conc = self.concurrency[process.name]) < 1
+  1.upto(self.concurrency[process.name]) do |num|
+    port = engine.port_for(process, num, self.port)
+    name = if (conc > 1); "#{process.name}-#{num}" else process.name; end
+    environment = (engine.environment.each_pair { |var,env| "#{var.upcase}=#{env}" }.to_a << "PORT=#{port}")
+%>
+[program:<%= app %>-<%= name %>]
+command=<%= process.command %>
+autostart=true
+autorestart=true
+stopsignal=QUIT
+stdout_logfile=<%= log_root %>/<%=process.name%>-<%=num%>-out.log
+stderr_logfile=<%= log_root %>/<%=process.name%>-<%=num%>-err.log
+user=<%= user %>
+directory=<%= engine.directory %>
+environment=<%= environment.join(',') %><%
+  end
+end
+%>

lib/foreman/export.rb

@@ -30,3 +30,5 @@ require "foreman/export/inittab"
 require "foreman/export/upstart"
 require "foreman/export/bluepill"
 require "foreman/export/runit"
+require "foreman/export/supervisord"
+

lib/foreman/export/supervisord.rb

@@ -0,0 +1,26 @@
+require "erb"
+require "foreman/export"
+
+class Foreman::Export::Supervisord < Foreman::Export::Base
+
+  def export
+    error("Must specify a location") unless location
+
+    FileUtils.mkdir_p location
+
+    app = self.app || File.basename(engine.directory)
+    user = self.user || app
+    log_root = self.log || "/var/log/#{app}"
+    template_root = self.template
+
+    Dir["#{location}/#{app}*.conf"].each do |file|
+      say "cleaning up: #{file}"
+      FileUtils.rm(file)
+    end
+
+    app_template = export_template("supervisord", "app.conf.erb", template_root)
+    app_config   = ERB.new(app_template, 0, '<').result(binding)
+    write_file "#{location}/#{app}.conf", app_config
+  end
+
+end

spec/foreman/export/supervisord_spec.rb

@@ -0,0 +1,75 @@
+require "spec_helper"
+require "foreman/engine"
+require "foreman/export/supervisord"
+require "tmpdir"
+
+describe Foreman::Export::Supervisord, :fakefs do
+  let(:procfile) { FileUtils.mkdir_p("/tmp/app"); write_procfile("/tmp/app/Procfile") }
+  let(:engine)   { Foreman::Engine.new(procfile) }
+  let(:options)  { Hash.new }
+  let(:supervisord)  { Foreman::Export::Supervisord.new("/tmp/init", engine, options) }
+
+  before(:each) { load_export_templates_into_fakefs("supervisord") }
+  before(:each) { stub(supervisord).say }
+
+  it "exports to the filesystem" do
+    supervisord.export
+
+    File.read("/tmp/init/app.conf").should         == example_export_file("supervisord/app.conf")
+  end
+
+  it "cleans up if exporting into an existing dir" do
+    mock(FileUtils).rm("/tmp/init/app.conf")
+
+    supervisord.export
+    supervisord.export
+  end
+
+  context "with concurrency" do
+    let(:options) { Hash[:concurrency => "alpha=2"] }
+
+    it "exports to the filesystem with concurrency" do
+      supervisord.export
+      
+      File.read("/tmp/init/app.conf").should            == example_export_file("supervisord/app-alpha-2.conf")
+    end
+  end
+
+  context "with alternate templates" do
+    let(:template_root) { "/tmp/alternate" }
+    let(:supervisord) { Foreman::Export::Supervisord.new("/tmp/init", engine, :template => template_root) }
+
+    before do
+      FileUtils.mkdir_p template_root
+      File.open("#{template_root}/app.conf.erb", "w") { |f| f.puts "alternate_template" }
+    end
+
+    it "can export with alternate template files" do
+      supervisord.export
+      
+      File.read("/tmp/init/app.conf").should == "alternate_template\n"
+    end
+  end
+
+  context "with alternate templates from home dir" do
+    let(:default_template_root) {File.expand_path("#{ENV['HOME']}/.foreman/templates")}
+
+    before do
+      ENV['_FOREMAN_SPEC_HOME'] = ENV['HOME']
+      ENV['HOME'] = "/home/appuser"
+      FileUtils.mkdir_p default_template_root
+      File.open("#{default_template_root}/app.conf.erb", "w") { |f| f.puts "default_alternate_template" }
+    end
+
+    after do
+      ENV['HOME'] = ENV.delete('_FOREMAN_SPEC_HOME')
+    end
+
+    it "can export with alternate template files" do
+      supervisord.export
+
+      File.read("/tmp/init/app.conf").should == "default_alternate_template\n"
+    end
+  end
+
+end

spec/resources/export/supervisord/app-alpha-2.conf

@@ -0,0 +1,21 @@
+
+[program:app-alpha-1]
+command=./alpha
+autostart=true
+autorestart=true
+stopsignal=QUIT
+stdout_logfile=/var/log/app/alpha-1-out.log
+stderr_logfile=/var/log/app/alpha-1-err.log
+user=app
+directory=/tmp/app
+environment=PORT=5000
+[program:app-alpha-2]
+command=./alpha
+autostart=true
+autorestart=true
+stopsignal=QUIT
+stdout_logfile=/var/log/app/alpha-2-out.log
+stderr_logfile=/var/log/app/alpha-2-err.log
+user=app
+directory=/tmp/app
+environment=PORT=5001

spec/resources/export/supervisord/app.conf

@@ -0,0 +1,21 @@
+
+[program:app-alpha]
+command=./alpha
+autostart=true
+autorestart=true
+stopsignal=QUIT
+stdout_logfile=/var/log/app/alpha-1-out.log
+stderr_logfile=/var/log/app/alpha-1-err.log
+user=app
+directory=/tmp/app
+environment=PORT=5000
+[program:app-bravo]
+command=./bravo
+autostart=true
+autorestart=true
+stopsignal=QUIT
+stdout_logfile=/var/log/app/bravo-1-out.log
+stderr_logfile=/var/log/app/bravo-1-err.log
+user=app
+directory=/tmp/app
+environment=PORT=5100