deb-murano/doc/source/specification/murano-api.rst

Glossary

• Environment

  The environment is a set of applications managed by a single project (tenant). They could be related logically with each other or not. Applications within a single environment may comprise of complex configuration while applications in different environments are always independent from one another. Each environment is associated with a single OpenStack project.

• Session

  Since murano environments are available for local modification for different users and from different locations, it's needed to store local modifications somewhere. Sessions were created to provide this opportunity. After a user adds an application to the environment - a new session is created. After a user sends an environment to deploy, a session with a set of applications changes status to deploying and all other open sessions for that environment become invalid. One session could be deployed only once.

• Object Model

  Applications are defined in MuranoPL object model, which is defined as a JSON object. The murano API doesn't know anything about it.

• Package

  A .zip archive, containing instructions for an application deployment.

• Environment-Template

  The environment template is the specification of a set of applications managed by a single project, which are related to each other. The environment template is stored in an environment template catalog, and it can be managed by the user (creation, deletion, updating). Finally, it can be deployed on OpenStack by translating into an environment.

Environment API

Attribute	Type	Description
id	string	Unique ID
name	string	User-friendly name
created	datetime	Creation date and time in ISO format
updated	datetime	Modification date and time in ISO format
tenant_id	string	OpenStack project ID
version	int	Current version
networking	string	Network settings
acquired_by	string	Id of a session that acquired this environment (for example is deploying it)
status	string	Deployment status: ready, pending, deploying

Common response codes

Code	Description
200	Operation completed successfully
403	User is not authorized to perform the operation

List environments

Request

Method	URI	Description
GET	/environments	Get a list of existing Environments

Parameters:

• all_tenants - boolean, indicates whether environments from all projects are listed. True environments from all projects are listed. Admin user required. False environments only from current project are listed (default like option unspecified).

Response

This call returns a list of environments. Only the basic properties are returned.

{
    "environments": [
        {
            "status": "ready",
            "updated": "2014-05-14T13:02:54",
            "networking": {},
            "name": "test1",
            "created": "2014-05-14T13:02:46",
            "tenant_id": "726ed856965f43cc8e565bc991fa76c3",
            "version": 0,
            "id": "2fa5ab704749444bbeafe7991b412c33"
        },
        {
            "status": "ready",
            "updated": "2014-05-14T13:02:55",
            "networking": {},
            "name": "test2",
            "created": "2014-05-14T13:02:51",
            "tenant_id": "726ed856965f43cc8e565bc991fa76c3",
            "version": 0,
            "id": "744e44812da84e858946f5d817de4f72"
        }
    ]
}

Create environment

Attribute	Type	Description
name	string	Environment name; at least one non-white space symbol

Request

Method	URI	Description
POST	/environments	Create new Environment

• Content-Type application/json

• Example

  {"name": "env_name"}

Response

{
    "id": "ce373a477f211e187a55404a662f968",
    "name": "env_name",
    "created": "2013-11-30T03:23:42Z",
    "updated": "2013-11-30T03:23:44Z",
    "tenant_id": "0849006f7ce94961b3aab4e46d6f229a",
    "version": 0
}

Update environment

Attribute	Type	Description
name	string	Environment name; at least one non-white space symbol

Request

Method	URI	Description
PUT	/environments/<env_id>	Update an existing Environment

• Content-Type application/json
• Example {"name": "env_name_changed"}

Response

Content-Type

application/json

{
    "id": "ce373a477f211e187a55404a662f968",
    "name": "env_name_changed",
    "created": "2013-11-30T03:23:42Z",
    "updated": "2013-11-30T03:45:54Z",
    "tenant_id": "0849006f7ce94961b3aab4e46d6f229a",
    "version": 0
}

Code	Description
200	Edited environment
400	Environment name must contain at least one non-white space symbol
403	User is not authorized to access environment
404	Environment not found
409	Environment with specified name already exists

Get environment details

Request

Return information about the environment itself and about applications, including this environment.

Method	URI	Header	Description
GET	/environments/{id}	X-Configuration-Session (optional)	Response detailed information about Environment including child entities

Response

Content-Type

application/json

{
    "status": "ready",
    "updated": "2014-05-14T13:12:26",
    "networking": {},
    "name": "quick-env-2",
    "created": "2014-05-14T13:09:55",
    "tenant_id": "726ed856965f43cc8e565bc991fa76c3",
    "version": 1,
    "services": [
        {
            "instance": {
                "flavor": "m1.medium",
                "image": "cloud-fedora-v3",
                "name": "exgchhv6nbika2",
                "ipAddresses": [
                    "10.0.0.200"
                ],
                "?": {
                    "type": "io.murano.resources.Instance",
                    "id": "14cce9d9-aaa1-4f09-84a9-c4bb859edaff"
                }
            },
            "name": "rewt4w56",
            "?": {
                "status": "ready",
                "_26411a1861294160833743e45d0eaad9": {
                    "name": "Telnet"
                },
                "type": "io.murano.apps.linux.Telnet",
                "id": "446373ef-03b5-4925-b095-6c56568fa518"
            }
        }
    ],
    "id": "20d4a012628e4073b48490a336a8acbf"
}

Delete environment

Request

Method	URI	Description
DELETE	/environments/{id}?abandon	Remove specified Environment.

Parameters:

• abandon - boolean, indicates how to delete environment. False is used if all resources used by environment must be destroyed; True is used when just database must be cleaned

Response

Code	Description
200	OK. Environment deleted successfully
403	User is not allowed to delete this resource
404	Not found. Specified environment doesn`t exist

Environment configuration API

Multiple sessions could be opened for one environment simultaneously, but only one session going to be deployed. First session that starts deploying is going to be deployed; other ones become invalid and could not be deployed at all. User could not open new session for environment that in deploying state (that’s why we call it "almost lock free" model).

Attribute	Type	Description
id	string	Session unique ID
environment_id	string	Environment that going to be modified during this session
created	datetime	Creation date and time in ISO format
updated	datetime	Modification date and time in ISO format
user_id	string	Session owner ID
version	int	Environment version for which configuration session is opened
state	string	Session state. Could be: open, deploying, deployed

Configure environment / open session

During this call new working session is created, and session ID should be sent in a request header with name X-Configuration-Session.

Request

Method	URI	Description
POST	/environments/<env_id>/configure	Creating new configuration session

Response

Content-Type

application/json

{
    "updated": datetime.datetime(2014, 5, 14, 14, 17, 58, 949358),
    "environment_id": "744e44812da84e858946f5d817de4f72",
    "ser_id": "4e91d06270c54290b9dbdf859356d3b3",
    "created": datetime.datetime(2014, 5, 14, 14, 17, 58, 949305),
    "state": "open", "version": 0L, "id": "257bef44a9d848daa5b2563779714820"
 }

Code	Description
200	Session created successfully
401	User is not authorized to access this session
403	Could not open session for environment, environment has deploying status

Deploy session

With this request all local changes made within the environment start to deploy on OpenStack.

Request

Method	URI	Description
POST	/environments/<env_id>/sessions/ <session_id>/deploy	Deploy changes made in session with specified session_id

Response

Code	Description
200	Session status changes to deploying
401	User is not authorized to access this session
403	Session is already deployed or deployment is in progress
404	Not found. Specified session doesn`t exist

Get session details

Request

Method	URI	Description
GET	/environments/<env_id>/sessions/ <session_id>	Get details about session with specified session_id

Response

{
    "id": "4aecdc2178b9430cbbb8db44fb7ac384",
    "environment_id": "4dc8a2e8986fa8fa5bf24dc8a2e8986fa8",
    "created": "2013-11-30T03:23:42Z",
    "updated": "2013-11-30T03:23:54Z",
    "user_id": "d7b501094caf4daab08469663a9e1a2b",
    "version": 0,
    "state": "deploying"
}

Code	Description
200	Session details information received
401	User is not authorized to access this session
403	Session is invalid
404	Not found. Specified session doesn`t exist

Delete session

Request

Method	URI	Description
DELETE	/environments/<env_id>/sessions/ <session_id>	Delete session with specified session_id

Response

Code	Description
200	Session is deleted successfully
401	User is not authorized to access this session
403	Session is in deploying state and could not be deleted
404	Not found. Specified session doesn`t exist

Environment deployments API

Environment deployment API allows to track changes of environment status, deployment events and errors. It also allows to browse deployment history.

List Deployments

Returns information about all deployments of the specified environment.

Request

Method	URI	Description
GET	/environments/<env_id>/deployments	Get list of environment deployments

Response

Content-Type

application/json

{
    "deployments": [
        {
            "updated": "2014-05-15T07:24:21",
            "environment_id": "744e44812da84e858946f5d817de4f72",
            "description": {
                "services": [
                    {
                        "instance": {
                            "flavor": "m1.medium",
                            "image": "cloud-fedora-v3",
                            "?": {
                                "type": "io.murano.resources.Instance",
                                "id": "ef729199-c71e-4a4c-a314-0340e279add8"
                            },
                            "name": "xkaduhv7qeg4m7"
                        },
                        "name": "teslnet1",
                        "?": {
                            "_26411a1861294160833743e45d0eaad9": {
                                "name": "Telnet"
                            },
                            "type": "io.murano.apps.linux.Telnet",
                            "id": "6e437be2-b5bc-4263-8814-6fd57d6ddbd5"
                        }
                    }
                ],
                "defaultNetworks": {
                    "environment": {
                        "name": "test2-network",
                        "?": {
                            "type": "io.murano.lib.networks.neutron.NewNetwork",
                            "id": "b6a1d515434047d5b4678a803646d556"
                        }
                    },
                    "flat": null
                },
                "name": "test2",
                "?": {
                    "type": "io.murano.Environment",
                    "id": "744e44812da84e858946f5d817de4f72"
                }
            },
            "created": "2014-05-15T07:24:21",
            "started": "2014-05-15T07:24:21",
            "finished": null,
            "state": "running",
            "id": "327c81e0e34a4c93ad9b9052ef42b752"
        }
    ]
}

Code	Description
200	Deployments information received successfully
401	User is not authorized to access this environment

Application management API

All applications should be created within an environment and all environment modifications are held within the session. Local changes apply only after successful deployment of an environment session.

Get application details

Using GET requests to applications endpoint user works with list containing all applications for specified environment. A user can request a whole list, specific application, or specific attribute of a specific application using tree traversing. To request a specific application, the user should add to endpoint part an application id, e.g.: /environments/<env_id>/services/<application_id>. For selection of specific attribute on application, simply appending part with attribute name will work. For example to request application name, user should use next endpoint: /environments/<env_id>/services/<application_id>/name

Request

Method	URI	Header
GET	/environments/<env_id>/services/<app_id>	X-Configuration-Session (optional)

Parameters:

• env_id - environment ID, required
• app_id - application ID, optional

Response

Content-Type

application/json

{
    "instance": {
        "flavor": "m1.medium",
        "image": "cloud-fedora-v3",
        "?": {
            "type": "io.murano.resources.Instance",
            "id": "060715ff-7908-4982-904b-3b2077ff55ef"
        },
        "name": "hbhmyhv6qihln3"
    },
    "name": "dfg34",
    "?": {
        "status": "pending",
        "_26411a1861294160833743e45d0eaad9": {
            "name": "Telnet"
        },
        "type": "io.murano.apps.linux.Telnet",
        "id": "6e7b8ad5-888d-4c5a-a498-076d092a7eff"
    }
}

POST applications

New application can be added to the murano environment using session. Result JSON is calculated in Murano dashboard, which based on UI definition

Request

Content-Type

application/json

Method	URI	Header
POST	/environments/<env_id>/services	X-Configuration-Session

{
  "instance": {
    "flavor": "m1.medium",
    "image": "clod-fedora-v3",
    "?": {
      "type": "io.murano.resources.Instance",
      "id": "bce8308e-5938-408b-a27a-0d3f0a2c52eb"
    },
    "name": "nhekhv6r7mhd4"
  },
  "name": "sdf34sadf",
  "?": {
    "_26411a1861294160833743e45d0eaad9": {
      "name": "Telnet"
    },
    "type": "io.murano.apps.linux.Telnet",
    "id": "190c8705-5784-4782-83d7-0ab55a1449aa"
  }
}

Response

Created application returned

Content-Type

application/json

{
    "instance": {
        "flavor": "m1.medium",
        "image": "cloud-fedora-v3",
        "?": {
            "type": "io.murano.resources.Instance",
            "id": "bce8308e-5938-408b-a27a-0d3f0a2c52eb"
        },
        "name": "nhekhv6r7mhd4"
    },
    "name": "sdf34sadf",
    "?": {
        "_26411a1861294160833743e45d0eaad9": {
            "name": "Telnet"
        },
        "type": "io.murano.apps.linux.Telnet",
        "id": "190c8705-5784-4782-83d7-0ab55a1449a1"
    }
}

Code	Description
200	Session is deleted successfully
401	User is not authorized to access this session
403	Session is in deploying state and could not be deleted
404	Not found. Specified session doesn`t exist
400	Required header or body are not provided

Delete application from environment

Delete one or all applications from the environment

Request

Method	URI	Header
DELETE	/environments/<env_id>/services/<app_id>	X-Configuration-Session(optional)

Parameters:

• env_id - environment ID, required
• app_id - application ID, optional

Statistic API

Statistic API intends to provide billing feature

Instance environment statistics

Request

Get information about all deployed instances in the specified environment

Method	URI
GET	/environments/<env_id>/instance-statistics/raw/<instance_id>

Parameters:

• env_id - environment ID, required
• instance_id - ID of the instance for which need to provide statistic information, optional

Response

Attribute	Type	Description
type	int	Code of the statistic object; 200 - instance, 100 - application
type_name	string	Class name of the statistic object
instance_id	string	Id of deployed instance
active	bool	Instance status
type_title	string	User-friendly name for browsing statistic in UI
duration	int	Seconds of instance uptime

Content-Type

application/json

[
    {
        "type": 200,
        "type_name": "io.murano.resources.Instance",
        "instance_id": "ef729199-c71e-4a4c-a314-0340e279add8",
        "active": true,
        "type_title": null,
        "duration": 1053,
    }
]

Request

Method	URI
GET	/environments/<env_id>/instance-statistics/aggregated

Response

Attribute	Type	Description
type	int	Code of the statistic object; 200 - instance, 100 - application
duration	int	Amount uptime of specified type objects
count	int	Quantity of specified type objects

Content-Type

application/json

[
    {
        "duration": 720,
        "count": 2,
        "type": 200
    }
]

General Request Statistics

Request

Method	URI
GET	/stats

Response

Attribute	Type	Description
requests_per_tenant	int	Number of incoming requests for user project
errors_per_second	int	Class name of the statistic object
errors_count	int	Class name of the statistic object
requests_per_second	float	Average number of incoming request received in one second
requests_count	int	Number of all requests sent to the server
cpu_percent	bool	Current cpu usage
cpu_count	int	Available cpu power is cpu_count * 100%
host	string	Server host-name
average_response_time	float	Average time response waiting, seconds

Content-Type

application/json

[
    {
        "updated": "2014-05-15T08:26:17",
        "requests_per_tenant": "{\"726ed856965f43cc8e565bc991fa76c3\": 313}",
        "created": "2014-04-29T13:23:59",
        "cpu_count": 2,
        "errors_per_second": 0,
        "requests_per_second": 0.0266528,
        "cpu_percent": 21.7,
        "host": "fervent-VirtualBox",
        "error_count": 0,
        "request_count": 320,
        "id": 1,
        "average_response_time": 0.55942
    }
]

Actions API

Murano actions are simple MuranoPL methods, that can be called on deployed applications. Application contains a list with available actions. Actions may return a result.

Execute an action

Generate task with executing specified action. Input parameters may be provided.

Request

Content-Type

application/json

Method	URI	Header
POST	/environments/<env_id>/actions/<action_id>

Parameters:

• env_id - environment ID, required
• actions_id - action ID to execute, required

"{<action_property>: value}"

or

"{}" in case action has no properties

Response

Task ID that executes specified action is returned

Content-Type

application/json

{
    "task_id": "620e883070ad40a3af566d465aa156ef"
}

GET action result

Request result value after action execution finish. Not all actions have return values.

Request

Method	URI	Header
GET	/environments/<env_id>/actions/<task_id>

Parameters:

• env_id - environment ID, required
• task_id - task ID, generated on desired action execution

Response

Json, describing action result is returned. Result type and value are provided.

Content-Type

application/json

{
  "isException": false,
    "result": ["item1", "item2"]
}

Static Actions API

Static actions are MuranoPL methods that can be called on a MuranoPL class without deploying actual applications and usually return a result.

Execute a static action

Invoke public static method of the specified MuranoPL class. Input parameters may be provided if method requires them.

Request

Content-Type

application/json

Method	URI	Header
POST	/actions

{
    "className": "my.class.fqn",
    "methodName": "myMethod",
    "packageName": "optional.package.fqn",
    "classVersion": "1.2.3",
    "parameters": {
        "arg1": "value1",
        "arg2": "value2"
    }
 }

Attribute	Type	Description
className	string	Fully qualified name of MuranoPL class with static method
methodName	string	Name of the method to invoke
packageName	string	Fully qualified name of a package with the MuranoPL class (optional)
classVersion	string	Class version specification, "=0" by default
parameters	object	Key-value pairs of method parameter names and their values, "{}" by default

Response

JSON-serialized result of the static method execution.

HTTP codes:

Code	Description
200	OK. Action was executed successfully
400	Bad request. The format of the body is invalid, method doesn't match provided arguments, mandatory arguments are not provided
403	User is not allowed to execute the action
404	Not found. Specified class, package or method doesn't exist or method is not exposed
503	Unhandled exception in the action