Modifications to properly support both 'gems' and 'packages' install types.

Added support for 'node_name' and 'environment' properties.
Renamed 'validation_cert' to 'validation_key' to match Chef's nomenclature.

cloudinit/CloudConfig/cc_chef.py

@@ -1,6 +1,7 @@
 # vi: ts=4 expandtab
 #
 #    Author: Avishai Ish-Shalom <avishai@fewbytes.com>
+#    Author: Mike Moulton <mike@meltmedia.com>
 #
 #    This program is free software: you can redistribute it and/or modify
 #    it under the terms of the GNU General Public License version 3, as
@@ -31,60 +32,59 @@ def handle(name,cfg,cloud,log,args):
     if not cfg.has_key('chef'): return
     chef_cfg = cfg['chef']
 
-    # Install chef packages from selected source
+    # ensure the chef directories we use exist
-    install_type = util.get_cfg_option_str(chef_cfg, "install_type", "packages")
+    mkdirs(['/etc/chef', '/var/log/chef', '/var/lib/chef', '/var/cache/chef', '/var/backups/chef', '/var/run/chef'])
-    if not os.path.isfile('/usr/bin/chef-client'):
-        if install_type == "gems":
-            if chef_cfg.has_key('version'):
-                chef_version = chef_cfg['version']
-            else:
-                chef_version = None
-            install_chef_from_gems(
-                    util.get_cfg_option_str(chef_cfg, 'ruby_version', '1.8'),
-                    chef_version)
-        else:
-            cc.install_packages(('chef',))
 
     # set the validation cert
-    if chef_cfg.has_key('validation_cert'):
+    if chef_cfg.has_key('validation_key'):
-        with open('/etc/chef/validation.pem', 'w') as validation_cert_fh:
+        with open('/etc/chef/validation.pem', 'w') as validation_key_fh:
-            validation_cert_fh.write(chef_cfg['validation_cert'])
+            validation_key_fh.write(chef_cfg['validation_key'])
 
     validation_name = chef_cfg.get('validation_name','chef-validator')
     # create the chef config from template
     util.render_to_file('chef_client.rb', '/etc/chef/client.rb',
             {'server_url': chef_cfg['server_url'], 
+             'node_name': chef_cfg['node_name'],
+             'environment': chef_cfg['environment'],
              'validation_name': chef_cfg['validation_name']})
 
-    chef_args = ['-d']
     # set the firstboot json
-    if chef_cfg.has_key('run_list'):
+    with open('/etc/chef/firstboot.json', 'w') as firstboot_json_fh:
-        with open('/etc/chef/firstboot.json', 'w') as firstboot_json_fh:
+        firstboot_json_fh.write("{\n")
-            firstboot_json_fh.write("{\n\"run_list\":\n[\n")
+        if chef_cfg.has_key('run_list'):
-            firstboot_json_fh.write(
+            firstboot_json_fh.write("  \"run_list\": [\n")
-                    ",\n".join(["\"%s\"" % runlist_item for runlist_item in chef_cfg['run_list']])
+            firstboot_json_fh.write(",\n".join(["    \"%s\"" % runlist_item for runlist_item in chef_cfg['run_list']]))
-                    )
+            firstboot_json_fh.write("\n  ]\n")
-            firstboot_json_fh.write("]\n\}")
+        firstboot_json_fh.write("}\n")  
-        chef_args.append('-j /etc/chef/firstboot.json')
 
-    # and finally, run chef
+    # If chef is not installed, we install chef based on 'install_type'
-    log.debug("running chef-client %s" % chef_args)
+    if not os.path.isfile('/usr/bin/chef-client'):
-    subprocess.check_call(['/usr/bin/chef-client'] + chef_args)
+        install_type = util.get_cfg_option_str(chef_cfg, 'install_type', 'packages')
+        if install_type == "gems":
+            # this will install and run the chef-client from gems
+            chef_version = util.get_cfg_option_str(chef_cfg, 'version', None)
+            ruby_version = util.get_cfg_option_str(chef_cfg, 'ruby_version', '1.8')
+            install_chef_from_gems(ruby_version, chef_version)
+            # and finally, run chef-client
+            log.debug('running chef-client')
+            subprocess.check_call(['/usr/bin/chef-client', '-d', '-i', '1800', '-s', '20'])
+        else:
+            # this will install and run the chef-client from packages
+            cc.install_packages(('chef',))
 
 def install_chef_from_gems(ruby_version, chef_version = None):
     cc.install_packages(ruby_packages[ruby_version])
-    gem_bin = get_gem_bin()
+    if not os.path.exists('/usr/bin/gem'): os.symlink('/usr/bin/gem%s' % ruby_version, '/usr/bin/gem')
-    if not os.path.exists('/usr/bin/gem'): os.symlink(gem_bin, '/usr/bin/gem')
+    if not os.path.exists('/usr/bin/ruby'): os.symlink('/usr/bin/ruby%s' % ruby_version, '/usr/bin/ruby')
-    chef_version_arg = ""
+    if chef_version:
-    if chef_version: chef_version_arg = "-v %s" % chef_version
+        subprocess.check_call(['/usr/bin/gem','install','chef','-v %s' % chef_version, '--no-ri','--no-rdoc','--bindir','/usr/bin','-q'])
-    subprocess.check_call([gem_bin,'install','chef',chef_version_arg, '--no-ri','--no-rdoc','--no-test','-q'])
+    else:
-    os.mkdirs('/etc/chef', '/var/log/chef', '/var/lib/chef', '/var/cache/chef', '/var/backups/chef', '/var/run/chef')
+        subprocess.check_call(['/usr/bin/gem','install','chef','--no-ri','--no-rdoc','--bindir','/usr/bin','-q'])
-    os.symlink('/var/lib/gem/%s/bin/chef-client' % ruby_version, '/usr/bin/chef-client')
-    # Ohai ruby plugin breaks if there is no ruby or gem binaries at /usr/bin, so
-    try: os.symlink('/usr/bin/gem%s' % ruby_version, '/usr/bin/gem')
-    except: pass
-    try: os.symlink('/usr/bin/ruby%s' % ruby_version, '/usr/bin/ruby')
-    except: pass
 
-def get_gem_bin():
+def ensure_dir(d):
-    return '/usr/bin/gem%s' % util.get_cfg_option_str(chef_cfg, 'ruby_version', '1.8')
+    if not os.path.exists(d):
+        os.makedirs(d)
+
+def mkdirs(dirs):
+    for d in dirs:
+        ensure_dir(d)

doc/examples/cloud-config-chef.txt

@@ -15,23 +15,19 @@ chef:
  # Chef settings
  server_url: "https://chef.yourorg.com:4000"
 
+ # Node Name
+ node_name: "Your Node Name"
+
+ # Environment
+ environment: "production"
+
  # Default validation name is chef-validator
  validation_name: "yourorg-validator"
- validation_cert: |
+ validation_key: |
-     -----BEGIN CERTIFICATE-----
+     -----BEGIN RSA PRIVATE KEY-----
-     MIICCTCCAXKgAwIBAgIBATANBgkqhkiG9w0BAQUFADANMQswCQYDVQQDDAJjYTAe
+     YOUR-ORGS-VALIDATION-KEY-HERE
-     Fw0xMDAyMTUxNzI5MjFaFw0xNTAyMTQxNzI5MjFaMA0xCzAJBgNVBAMMAmNhMIGf
+     -----END RSA PRIVATE KEY-----
-     MA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCu7Q40sm47/E1Pf+r8AYb/V/FWGPgc
+ 
-     b014OmNoX7dgCxTDvps/h8Vw555PdAFsW5+QhsGr31IJNI3kSYprFQcYf7A8tNWu
-     1MASW2CfaEiOEi9F1R3R4Qlz4ix+iNoHiUDTjazw/tZwEdxaQXQVLwgTGRwVa+aA
-     qbutJKi93MILLwIDAQABo3kwdzA4BglghkgBhvhCAQ0EKxYpUHVwcGV0IFJ1Ynkv
-     T3BlblNTTCBHZW5lcmF0ZWQgQ2VydGlmaWNhdGUwDwYDVR0TAQH/BAUwAwEB/zAd
-     BgNVHQ4EFgQUu4+jHB+GYE5Vxo+ol1OAhevspjAwCwYDVR0PBAQDAgEGMA0GCSqG
-     SIb3DQEBBQUAA4GBAH/rxlUIjwNb3n7TXJcDJ6MMHUlwjr03BDJXKb34Ulndkpaf
-     +GAlzPXWa7bO908M9I8RnPfvtKnteLbvgTK+h+zX1XCty+S2EQWk29i2AdoqOTxb
-     hppiGMp0tT5Havu4aceCXiy2crVcudj3NFciy8X66SoECemW9UYDCb9T5D0d
-     -----END CERTIFICATE-----
-
  # A run list for a first boot json
  run_list:
   - "recipe[apache2]"

templates/chef_client.rb.tmpl

@@ -1,12 +1,15 @@
-log_level          :info
+log_level              :info
-log_location       "/var/log/chef/client.log"
+log_location           "/var/log/chef/client.log"
-ssl_verify_mode    :verify_none
+ssl_verify_mode        :verify_none
 validation_client_name "$validation_name"
 validation_key         "/etc/chef/validation.pem"
-client_key               "/etc/chef/client.pem"
+client_key             "/etc/chef/client.pem"
-chef_server_url    "$server_url"
+chef_server_url        "$server_url"
-file_cache_path    "/var/cache/chef"
+environment            "$environment"
-file_backup_path  "/var/backups/chef"
+node_name              "$node_name"
-pid_file           "/var/run/chef/client.pid"
+json_attribs           "/etc/chef/firstboot.json"
+file_cache_path        "/var/cache/chef"
+file_backup_path       "/var/backups/chef"
+pid_file               "/var/run/chef/client.pid"
 Chef::Log::Formatter.show_time = true