Add credential parameters to the GCE modules.

In order to simplify the workflow with the GCE modules, it's now
possible to add the parameters and project name as arguments to the
various GCE modules.

The inventory plugin also returns the IP of the host in
`ansible_ssh_host` so that you don't have to specify IPs into the
inventory file.

Some update to the documentation are also added.

Closes #5583.

docsite/rst/intro_dynamic_inventory.rst

@@ -197,6 +197,7 @@ In addition to Cobbler and EC2, inventory scripts are also available for::
 
    BSD Jails
    Digital Ocean
+   Google Compute Engine
    Linode
    OpenShift
    OpenStack Nova

lib/ansible/module_utils/gce.py

@@ -0,0 +1,41 @@
+USER_AGENT_PRODUCT="Ansible-gce"
+USER_AGENT_VERSION="v1"
+
+def gce_connect(module):
+    """Return a Google Cloud Engine connection."""
+    service_account_email = module.params.get('service_account_email', None)
+    pem_file = module.params.get('pem_file', None)
+    project_id = module.params.get('project_id', None)
+
+    if service_account_email is None or pem_file is None:
+        # Load in the libcloud secrets file
+        try:
+            import secrets
+        except ImportError:
+            secrets = None
+
+        service_account_email, pem_file = getattr(secrets, 'GCE_PARAMS', (None, None))
+        keyword_params = getattr(secrets, 'GCE_KEYWORD_PARAMS', {})
+        project_id = keyword_params.get('project', None)
+
+    if service_account_email is None or pem_file is None or project_id is None:
+        module.fail_json(msg='Missing GCE connection parameters in libcloud secrets file.')
+        return None
+
+    try:
+        gce = get_driver(Provider.GCE)(service_account_email, pem_file, datacenter=module.params.get('zone'), project=project_id)
+        gce.connection.user_agent_append("%s/%s" % (
+            USER_AGENT_PRODUCT, USER_AGENT_VERSION))
+    except (RuntimeError, ValueError), e:
+        module.fail_json(msg=str(e), changed=False)
+    except Exception, e:
+        module.fail_json(msg=unexpected_error_msg(e), changed=False)
+
+    return gce
+
+def unexpected_error_msg(error):
+    """Create an error string based on passed in error."""
+    msg='Unexpected response: HTTP return_code['
+    msg+='%s], API error code[%s] and message: %s' % (
+        error.http_code, error.code, str(error.value))
+    return msg

library/cloud/gce

@@ -51,6 +51,27 @@ options:
     required: false
     default: null
     aliases: []
+  service_account_email:
+    version_added: 1.5.1
+    description:
+      - service account email
+    required: false
+    default: null
+    aliases: []
+  pem_file:
+    version_added: 1.5.1
+    description:
+      - path to the pem file associated with the service account email
+    required: false
+    default: null
+    aliases: []
+  project_id:
+    version_added: 1.5.1
+    description:
+      - your GCE project ID
+    required: false
+    default: null
+    aliases: []
   name:
     description:
       - identifier when working with a single instance
@@ -90,6 +111,8 @@ options:
     aliases: []
 
 requirements: [ "libcloud" ]
+notes:
+  - Either I(name) or I(instance_names) is required.
 author: Eric Johnson <erjohnso@google.com>
 '''
 
@@ -119,10 +142,14 @@ EXAMPLES = '''
     machine_type: n1-standard-1
     image: debian-6
     zone: us-central1-a
+    service_account_email: unique-email@developer.gserviceaccount.com
+    pem_file: /path/to/pem_file
+    project_id: project-id
   tasks:
     - name: Launch instances
       local_action: gce instance_names={{names}} machine_type={{machine_type}}
-                    image={{image}} zone={{zone}}
+                    image={{image}} zone={{zone}} service_account_email={{ service_account_email }}
+                    pem_file={{ pem_file }} project_id={{ project_id }}
       register: gce
     - name: Wait for SSH to come up
       local_action: wait_for host={{item.public_ip}} port=22 delay=10
@@ -150,9 +177,6 @@ EXAMPLES = '''
 
 import sys
 
-USER_AGENT_PRODUCT="Ansible-gce"
-USER_AGENT_VERSION="v1beta15"
-
 try:
     from libcloud.compute.types import Provider
     from libcloud.compute.providers import get_driver
@@ -171,25 +195,6 @@ except ImportError:
         "msg='GCE module requires python's 'ast' module, python v2.6+'")
     sys.exit(1)
 
-# Load in the libcloud secrets file
-try:
-    import secrets
-except ImportError:
-    secrets = None
-ARGS = getattr(secrets, 'GCE_PARAMS', ())
-KWARGS = getattr(secrets, 'GCE_KEYWORD_PARAMS', {})
-
-if not ARGS or not 'project' in KWARGS:
-    print("failed=True " + \
-        "msg='Missing GCE connection parametres in libcloud secrets file.'")
-    sys.exit(1)
-
-def unexpected_error_msg(error):
-    """Create an error string based on passed in error."""
-    msg='Unexpected response: HTTP return_code['
-    msg+='%s], API error code[%s] and message: %s' % (
-        error.http_code, error.code, str(error.value))
-    return msg
 
 def get_instance_info(inst):
     """Retrieves instance information from an instance object and returns it
@@ -353,9 +358,14 @@ def main():
             zone = dict(choices=['us-central1-a', 'us-central1-b',
                     'us-central2-a', 'europe-west1-a', 'europe-west1-b'],
                     default='us-central1-a'),
+            service_account_email = dict(),
+            pem_file = dict(),
+            project_id = dict(),
         )
     )
 
+    gce = gce_connect(module)
+
     image = module.params.get('image')
     instance_names = module.params.get('instance_names')
     machine_type = module.params.get('machine_type')
@@ -368,13 +378,6 @@ def main():
     zone = module.params.get('zone')
     changed = False
 
-    try:
-        gce = get_driver(Provider.GCE)(*ARGS, datacenter=zone, **KWARGS)
-        gce.connection.user_agent_append("%s/%s" % (
-            USER_AGENT_PRODUCT, USER_AGENT_VERSION))
-    except Exception, e:
-        module.fail_json(msg=unexpected_error_msg(e), changed=False)
-
     inames = []
     if isinstance(instance_names, list):
         inames = instance_names
@@ -418,5 +421,6 @@ def main():
 
 # import module snippets
 from ansible.module_utils.basic import *
+from ansible.module_utils.gce import *
 
 main()

library/cloud/gce_lb

@@ -110,6 +110,27 @@ options:
     default: "present"
     choices: ["active", "present", "absent", "deleted"]
     aliases: []
+  service_account_email:
+    version_added: 1.5.1
+    description:
+      - service account email
+    required: false
+    default: null
+    aliases: []
+  pem_file:
+    version_added: 1.5.1
+    description:
+      - path to the pem file associated with the service account email
+    required: false
+    default: null
+    aliases: []
+  project_id:
+    version_added: 1.5.1
+    description:
+      - your GCE project ID
+    required: false
+    default: null
+    aliases: []
 
 requirements: [ "libcloud" ]
 author: Eric Johnson <erjohnso@google.com>
@@ -129,41 +150,20 @@ EXAMPLES = '''
 
 import sys
 
-USER_AGENT_PRODUCT="Ansible-gce_lb"
-USER_AGENT_VERSION="v1beta15"
 
-try:                                                                            
+try:
     from libcloud.compute.types import Provider
     from libcloud.compute.providers import get_driver
     from libcloud.loadbalancer.types import Provider as Provider_lb
     from libcloud.loadbalancer.providers import get_driver as get_driver_lb
     from libcloud.common.google import GoogleBaseError, QuotaExceededError, \
             ResourceExistsError, ResourceNotFoundError
-    _ = Provider.GCE                                                            
-except ImportError:                                                             
+    _ = Provider.GCE
+except ImportError:
     print("failed=True " + \
             "msg='libcloud with GCE support required for this module.'")
-    sys.exit(1)                                                                 
-                                                                                
-# Load in the libcloud secrets file                                             
-try:                                                                            
-    import secrets                                                              
-except ImportError:                                                             
-    secrets = None                                                              
-ARGS = getattr(secrets, 'GCE_PARAMS', ())                                       
-KWARGS = getattr(secrets, 'GCE_KEYWORD_PARAMS', {})                             
-
-if not ARGS or not 'project' in KWARGS:
-    print("failed=True msg='Missing GCE connection " + \
-            "parameters in libcloud secrets file.'")
     sys.exit(1)
 
-def unexpected_error_msg(error):
-    """Format error string based on passed in error."""
-    msg='Unexpected response: HTTP return_code['
-    msg+='%s], API error code[%s] and message: %s' % (
-            error.http_code, error.code, str(error.value))
-    return msg
 
 def main():
     module = AnsibleModule(
@@ -183,9 +183,14 @@ def main():
             port_range = dict(),
             members = dict(type='list'),
             state = dict(default='present'),
+            service_account_email = dict(),
+            pem_file = dict(),
+            project_id = dict(),
         )
     )
 
+    gce = gce_connect(module)
+
     httphealthcheck_name = module.params.get('httphealthcheck_name')
     httphealthcheck_port = module.params.get('httphealthcheck_port')
     httphealthcheck_path = module.params.get('httphealthcheck_path')
@@ -205,9 +210,6 @@ def main():
     state = module.params.get('state')
 
     try:
-        gce = get_driver(Provider.GCE)(*ARGS, **KWARGS)
-        gce.connection.user_agent_append("%s/%s" % (
-                USER_AGENT_PRODUCT, USER_AGENT_VERSION))
         gcelb = get_driver_lb(Provider_lb.GCE)(gce_driver=gce)
         gcelb.connection.user_agent_append("%s/%s" % (
                 USER_AGENT_PRODUCT, USER_AGENT_VERSION))
@@ -329,5 +331,6 @@ def main():
 
 # import module snippets
 from ansible.module_utils.basic import *
+from ansible.module_utils.gce import *
 
 main()

library/cloud/gce_net

@@ -73,6 +73,27 @@ options:
     default: "present"
     choices: ["active", "present", "absent", "deleted"]
     aliases: []
+  service_account_email:
+    version_added: 1.5.1
+    description:
+      - service account email
+    required: false
+    default: null
+    aliases: []
+  pem_file:
+    version_added: 1.5.1
+    description:
+      - path to the pem file associated with the service account email
+    required: false
+    default: null
+    aliases: []
+  project_id:
+    version_added: 1.5.1
+    description:
+      - your GCE project ID
+    required: false
+    default: null
+    aliases: []
 
 requirements: [ "libcloud" ]
 author: Eric Johnson <erjohnso@google.com>
@@ -96,39 +117,17 @@ EXAMPLES = '''
 
 import sys
 
-USER_AGENT_PRODUCT="Ansible-gce_net"
-USER_AGENT_VERSION="v1beta15"
-
-try:                                                                            
-    from libcloud.compute.types import Provider                                 
-    from libcloud.compute.providers import get_driver                           
+try:
+    from libcloud.compute.types import Provider
+    from libcloud.compute.providers import get_driver
     from libcloud.common.google import GoogleBaseError, QuotaExceededError, \
             ResourceExistsError, ResourceNotFoundError
-    _ = Provider.GCE                                                            
-except ImportError:                                                             
+    _ = Provider.GCE
+except ImportError:
     print("failed=True " + \
             "msg='libcloud with GCE support required for this module.'")
-    sys.exit(1)                                                                 
-                                                                                
-# Load in the libcloud secrets file                                             
-try:                                                                            
-    import secrets                                                              
-except ImportError:                                                             
-    secrets = None                                                              
-ARGS = getattr(secrets, 'GCE_PARAMS', ())                                       
-KWARGS = getattr(secrets, 'GCE_KEYWORD_PARAMS', {})                             
-
-if not ARGS or not 'project' in KWARGS:
-    print("failed=True msg='Missing GCE connection " + \
-            "parameters in libcloud secrets file.'")
     sys.exit(1)
 
-def unexpected_error_msg(error):
-    """Format error string based on passed in error."""
-    msg='Unexpected response: HTTP return_code['
-    msg+='%s], API error code[%s] and message: %s' % (
-            error.http_code, error.code, str(error.value))
-    return msg
 
 def format_allowed(allowed):
     """Format the 'allowed' value so that it is GCE compatible."""
@@ -159,9 +158,14 @@ def main():
             src_range = dict(),
             src_tags = dict(type='list'),
             state = dict(default='present'),
+            service_account_email = dict(),
+            pem_file = dict(),
+            project_id = dict(),
         )
     )
 
+    gce = gce_connect(module)
+
     allowed = module.params.get('allowed')
     ipv4_range = module.params.get('ipv4_range')
     fwname = module.params.get('fwname')
@@ -170,13 +174,6 @@ def main():
     src_tags = module.params.get('src_tags')
     state = module.params.get('state')
 
-    try:
-        gce = get_driver(Provider.GCE)(*ARGS, **KWARGS)
-        gce.connection.user_agent_append("%s/%s" % (
-                USER_AGENT_PRODUCT, USER_AGENT_VERSION))
-    except Exception, e:
-        module.fail_json(msg=unexpected_error_msg(e), changed=False)
-
     changed = False
     json_output = {'state': state}
 
@@ -269,5 +266,6 @@ def main():
 
 # import module snippets
 from ansible.module_utils.basic import *
+from ansible.module_utils.gce import *
 
 main()

library/cloud/gce_pd

@@ -75,6 +75,27 @@ options:
     required: false
     default: "us-central1-b"
     aliases: []
+  service_account_email:
+    version_added: 1.5.1
+    description:
+      - service account email
+    required: false
+    default: null
+    aliases: []
+  pem_file:
+    version_added: 1.5.1
+    description:
+      - path to the pem file associated with the service account email
+    required: false
+    default: null
+    aliases: []
+  project_id:
+    version_added: 1.5.1
+    description:
+      - your GCE project ID
+    required: false
+    default: null
+    aliases: []
 
 requirements: [ "libcloud" ]
 author: Eric Johnson <erjohnso@google.com>
@@ -82,47 +103,26 @@ author: Eric Johnson <erjohnso@google.com>
 
 EXAMPLES = '''
 # Simple attachment action to an existing instance
-- local_action: 
-    module: gce_pd 
+- local_action:
+    module: gce_pd
     instance_name: notlocalhost
-    size_gb: 5 
+    size_gb: 5
     name: pd
 '''
 
 import sys
 
-USER_AGENT_PRODUCT="Ansible-gce_pd"
-USER_AGENT_VERSION="v1beta15"
-
-try:                                                                            
-    from libcloud.compute.types import Provider                                 
-    from libcloud.compute.providers import get_driver                           
+try:
+    from libcloud.compute.types import Provider
+    from libcloud.compute.providers import get_driver
     from libcloud.common.google import GoogleBaseError, QuotaExceededError, \
             ResourceExistsError, ResourceNotFoundError, ResourceInUseError
-    _ = Provider.GCE                                                            
-except ImportError:                                                             
+    _ = Provider.GCE
+except ImportError:
     print("failed=True " + \
         "msg='libcloud with GCE support is required for this module.'")
-    sys.exit(1)                                                                 
-                                                                                
-# Load in the libcloud secrets file                                             
-try:                                                                            
-    import secrets                                                              
-except ImportError:                                                             
-    secrets = None                                                              
-ARGS = getattr(secrets, 'GCE_PARAMS', ())                                       
-KWARGS = getattr(secrets, 'GCE_KEYWORD_PARAMS', {})                             
-
-if not ARGS or not 'project' in KWARGS:
-    print("failed=True " + \
-        "msg='Missing GCE connection parameters in libcloud secrets file.'")
     sys.exit(1)
 
-def unexpected_error_msg(error):
-    msg='Unexpected response: HTTP return_code['
-    msg+='%s], API error code[%s] and message: %s' % (
-        error.http_code, error.code, str(error.value))
-    return msg
 
 def main():
     module = AnsibleModule(
@@ -135,9 +135,14 @@ def main():
             size_gb = dict(default=10),
             state = dict(default='present'),
             zone = dict(default='us-central1-b'),
+            service_account_email = dict(),
+            pem_file = dict(),
+            project_id = dict(),
         )
     )
 
+    gce = gce_connect(module)
+
     detach_only = module.params.get('detach_only')
     instance_name = module.params.get('instance_name')
     mode = module.params.get('mode')
@@ -151,13 +156,6 @@ def main():
             msg='Must specify an instance name when detaching a disk',
             changed=False)
 
-    try:
-        gce = get_driver(Provider.GCE)(*ARGS, datacenter=zone, **KWARGS)
-        gce.connection.user_agent_append("%s/%s" % (
-                USER_AGENT_PRODUCT, USER_AGENT_VERSION))
-    except Exception, e:
-        module.fail_json(msg=unexpected_error_msg(e), changed=False)
-
     disk = inst = None
     changed = is_attached = False
 
@@ -251,5 +249,6 @@ def main():
 
 # import module snippets
 from ansible.module_utils.basic import *
+from ansible.module_utils.gce import *
 
 main()

plugins/inventory/gce.py

@@ -73,7 +73,7 @@ Version: 0.0.1
 '''
 
 USER_AGENT_PRODUCT="Ansible-gce_inventory_plugin"
-USER_AGENT_VERSION="v1beta15"
+USER_AGENT_VERSION="v1"
 
 import sys
 import os
@@ -174,6 +174,10 @@ class GceInventory(object):
 
     def node_to_dict(self, inst):
         md = {}
+
+        if inst is None:
+            return {}
+
         if inst.extra['metadata'].has_key('items'):
             for entry in inst.extra['metadata']['items']:
                 md[entry['key']] = entry['value']
@@ -192,12 +196,17 @@ class GceInventory(object):
             'gce_zone': inst.extra['zone'].name,
             'gce_tags': inst.extra['tags'],
             'gce_metadata': md,
-            'gce_network': net
+            'gce_network': net,
+            # Hosts don't have a public name, so we add an IP
+            'ansible_ssh_host': inst.public_ips[0]
         }
 
     def get_instance(self, instance_name):
         '''Gets details about a specific instance '''
-        return self.driver.ex_get_node(instance_name)
+        try:
+            return self.driver.ex_get_node(instance_name)
+        except Exception, e:
+            return None
 
     def group_instances(self):
         '''Group all instances'''