Chef deploy_revision provider used in application_php fails, seemingly attempting to use home dir of apache user for SSH known_hosts when running git ls-remote

gistfile1.txt

[2013-02-07T19:08:14+00:00] INFO: Processing deploy_revision[my_app] action deploy (/tmp/vagrant-chef-1/chef-solo-1/cookbooks/application/providers/default.rb line 122)

================================================================================

Error executing action `deploy` on resource 'deploy_revision[my_app]'
================================================================================

Mixlib::ShellOut::ShellCommandFailed
------------------------------------
Expected process to exit with [0], but received '128'
---- Begin output of git ls-remote git@github.com:my_org/my_app.git HEAD ----
STDOUT: 
STDERR: Could not create directory '/var/www/.ssh'.
Failed to add the host to the list of known hosts (/var/www/.ssh/known_hosts).
Permission denied (publickey).
fatal: The remote end hung up unexpectedly
---- End output of git ls-remote git@github.com:my_org/my_app.git HEAD ----
Ran git ls-remote git@github.com:my_org/my_app.git HEAD returned 128

Resource Declaration:
---------------------
# In /tmp/vagrant-chef-1/chef-solo-1/cookbooks/application/providers/default.rb

122:   @deploy_resource = send(new_resource.strategy.to_sym, new_resource.name) do
123:     action force ? :force_deploy : :deploy
124:     scm_provider new_resource.scm_provider
125:     revision new_resource.revision
126:     repository new_resource.repository
127:     enable_submodules new_resource.enable_submodules
128:     user new_resource.owner
129:     group new_resource.group
130:     deploy_to new_resource.path
131:     ssh_wrapper "#{new_resource.path}/deploy-ssh-wrapper" if new_resource.deploy_key
132:     shallow_clone true
133:     rollback_on_error new_resource.rollback_on_error
134:     all_environments = ([new_resource.environment]+new_resource.sub_resources.map{|res| res.environment}).inject({}){|acc, val| acc.merge(val)}
135:     environment all_environments
136:     migrate new_resource.migrate
137:     all_migration_commands = ([new_resource.migration_command]+new_resource.sub_resources.map{|res| res.migration_command}).select{|cmd| cmd && !cmd.empty?}
138:     migration_command all_migration_commands.join(' && ')
139:     restart_command do
140:       ([new_resource]+new_resource.sub_resources).each do |res|
141:         cmd = res.restart_command
142:         if cmd.is_a? Proc
143:           version = Chef::Version.new(Chef::VERSION)
144:           provider = if version.major > 10 || version.minor >= 14
145:             Chef::Platform.provider_for_resource(res, :nothing)
146:           else
147:             Chef::Platform.provider_for_resource(res)
148:           end
149:           provider.load_current_resource
150:           provider.instance_eval(&cmd)
151:         elsif cmd && !cmd.empty?
152:           execute cmd do
153:             user new_resource.owner
154:             group new_resource.group
155:             environment all_environments
156:           end
157:         end
158:       end
159:     end

Compiled Resource:
------------------
# Declared in /tmp/vagrant-chef-1/chef-solo-1/cookbooks/application/providers/default.rb:122:in `run_deploy'

deploy_revision("my_app") do
  provider Chef::Provider::Deploy::Revision
  action [:deploy]
  retries 0
  retry_delay 2
  deploy_to "/srv/my_app"
  repository_cache "cached-copy"
  revision "HEAD"
  rollback_on_error true
  remote "origin"
  shallow_clone true
  scm_provider Chef::Provider::Git
  keep_releases 5
  cookbook_name :my_app
  repo "git@github.com:my_org/my_app.git"
  user "apache"
  group "apache"
  git_ssh_wrapper "/srv/my_app/deploy-ssh-wrapper"
  restart_command #<Proc:0x00000002797410@/tmp/vagrant-chef-1/chef-solo-1/cookbooks/application/providers/default.rb:139>
  before_migrate #<Proc:0x00000002debd20@/tmp/vagrant-chef-1/chef-solo-1/cookbooks/application/providers/default.rb:165>
  before_symlink #<Proc:0x00000002debac8@/tmp/vagrant-chef-1/chef-solo-1/cookbooks/application/providers/default.rb:168>
  before_restart #<Proc:0x00000002deb898@/tmp/vagrant-chef-1/chef-solo-1/cookbooks/application/providers/default.rb:171>
  after_restart #<Proc:0x00000002deb618@/tmp/vagrant-chef-1/chef-solo-1/cookbooks/application/providers/default.rb:174>
  shared_path "/srv/my_app/shared"
  destination "/srv/my_app/shared/cached-copy"
end

[2013-02-07T19:08:16+00:00] ERROR: Running exception handlers
[2013-02-07T19:08:16+00:00] ERROR: Exception handlers complete
[2013-02-07T19:08:16+00:00] FATAL: Stacktrace dumped to /tmp/vagrant-chef-1/chef-stacktrace.out
[2013-02-07T19:08:16+00:00] FATAL: Mixlib::ShellOut::ShellCommandFailed: deploy_revision[my_app] (/tmp/vagrant-chef-1/chef-solo-1/cookbooks/application/providers/default.rb line 122) had an error: Mixlib::ShellOut::ShellCommandFailed: Expected process to exit with [0], but received '128'
---- Begin output of git ls-remote git@github.com:my_org/my_app.git HEAD ----
STDOUT: 
STDERR: Could not create directory '/var/www/.ssh'.
Failed to add the host to the list of known hosts (/var/www/.ssh/known_hosts).
Permission denied (publickey).
fatal: The remote end hung up unexpectedly
---- End output of git ls-remote git@github.com:my_org/my_app.git HEAD ----
Ran git ls-remote git@github.com:my_org/my_app.git HEAD returned 128
Chef never successfully completed! Any errors should be visible in the
output above. Please fix your recipes so that they properly complete.