OpenStack: fixing “No socketless chef-zero server”

I’ve started playing with various incarnations of “in a box” OpenStack setups to familiarize myself with OpenStack, among them DevStack and Ubuntu OpenStack. The OpenStack Chef Repo looks promising to me, as it gives you a good starting point, but can easily be extended to more complex lab setups, or even full productions environments.

The only problem? This error:

$ git clone https://github.com/openstack/openstack-chef-repo
$ export REPO_OS=centos7.1
$ cd openstack-chef-repo
$ chef exec rake berks_vendor
$ chef exec rake aio_neutron
chef exec chef-client --force-formatter -z vagrant_linux.rb aio-neutron.rb
[2015-08-09T23:41:58+02:00] INFO: Started chef-zero at chefzero://localhost:8889 with repository at /Users/stb/working/xxx/openstack-chef-repo
  One version per cookbook

[2015-08-09T23:41:58+02:00] INFO: Forking chef instance to converge...
Starting Chef Client, version 12.3.0
...
[2015-08-10T00:02:19+02:00] INFO: Converging controller because 'converge true' is set ...
[2015-08-10T00:02:19+02:00] INFO: Port forwarded: local URL chefzero://localhost:8889 is available to 127.0.0.1 as chefzero://localhost:8889 for the duration of this SSH connection.
[2015-08-10T00:02:19+02:00] INFO: Executing sudo chef-client -l info on vagrant@127.0.0.1

    [controller] [2015-08-09T22:02:18+00:00] INFO: Forking chef instance to converge...
                 Starting Chef Client, version 12.4.1
                 [2015-08-09T22:02:18+00:00] INFO: *** Chef 12.4.1 ***
                 [2015-08-09T22:02:18+00:00] INFO: Chef-client pid: 13637
                 
                 ================================================================================
                 Chef encountered an error attempting to load the node data for "controller"
                 ================================================================================
                 
                 Unexpected Error:
                 -----------------
                 ChefZero::ServerNotFound: No socketless chef-zero server on given port 8889
                 
                 
                 Running handlers:
                 [2015-08-09T22:02:20+00:00] ERROR: Running exception handlers
                 Running handlers complete
                 [2015-08-09T22:02:20+00:00] ERROR: Exception handlers complete
                 Chef Client failed. 0 resources updated in 2.194757362 seconds
                 [2015-08-09T22:02:20+00:00] FATAL: Stacktrace dumped to /var/chef/cache/chef-stacktrace.out
                 [2015-08-09T22:02:20+00:00] ERROR: No socketless chef-zero server on given port 8889
                 [2015-08-09T22:02:20+00:00] FATAL: Chef::Exceptions::ChildConvergeError: Chef run process exited unsuccessfully (exit code 1)
[2015-08-10T00:02:23+02:00] INFO: Completed chef-client -l info on vagrant@127.0.0.1: exit status 1

I’m far from an expert in Chef, so it took me a bit of searching and experimenting. Luckily, the solution is rather simple:

$ chef gem list -d '^chef-provisioning$'

*** LOCAL GEMS ***

chef-provisioning (1.1.1)
    Author: John Keiser
    Homepage: http://github.com/chef/chef-provisioning/README.md
    Installed at: /opt/chefdk/embedded/lib/ruby/gems/2.1.0

    A library for creating machines and infrastructures idempotently in
    Chef.
$ chef gem update chef-provisioning
Updating installed gems
Updating chef-provisioning
Fetching: chef-provisioning-1.3.0.gem (100%)
WARNING:  You don't have /Users/stb/.chefdk/gem/ruby/2.1.0/bin in your PATH,
	  gem executables will not run.
Successfully installed chef-provisioning-1.3.0
Gems updated: chef-provisioning
$ chef gem list -d '^chef-provisioning$'

*** LOCAL GEMS ***

chef-provisioning (1.3.0, 1.1.1)
    Author: John Keiser
    Homepage: http://github.com/chef/chef-provisioning/README.md
    Installed at (1.3.0): /Users/stb/.chefdk/gem/ruby/2.1.0
                 (1.1.1): /opt/chefdk/embedded/lib/ruby/gems/2.1.0

    A library for creating machines and infrastructures idempotently in
    Chef.

The next version of ChefDK will likely come with this updated version of chef-provisioning, but until then, this should do the trick.

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