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BaragonService API

Listed below are the various endpoints for BaragonService along with example request payloads (where applicable) and responses. All example requests are pointed at the baragon docker host, and all request examples are written in python.

| State | Workers | Status | Requests | Auth | Load Balancer | Agent API | #State ##GET /state

Returns the current list of services that Baragon is keeping track of. Returns a collection of BaragonServiceState objects

###Example Request

requests.get("192.168.33.20:8080/baragon/v2/state")

###Example Response

[
   {
      "service":{
         "serviceId":"test1",
         "owners":["[email protected]"],
         "serviceBasePath":"/test1",
         "loadBalancerGroups":["vagrant"],
         "options":{
             "nginxExtraConfigs":["rewrite ^/test(.*) /test/path$1 last;"]
         }
      },
      "upstreams":[{
            "upstream":"example.com:80",
            "requestId":"test1",
            "rackId":"us_east_1a"
       }]
   },
      {
      "service":{
         "serviceId":"test2",
         "owners":["[email protected]"],
         "serviceBasePath":"/test2",
         "loadBalancerGroups":["vagrant"],
         "options":{
            "nginxExtraConfigs":["rewrite ^/test2(.*) /test2/path$1 last;"]
         }
      },
      "upstreams":[{
            "upstream":"something.com:80",
            "requestId":"test2",
            "rackId":"us_east_1a"
       }]
   },
]

##GET /state/{serviceId}

Returns the details for a specific service ID (BaragonServiceState object).

###Example Request

requests.get("192.168.33.20:8080/baragon/v2/state/test1")

###Example Response

{
   "service":{
      "serviceId":"test1",
      "owners":["[email protected]"],
      "serviceBasePath":"/test1",
      "loadBalancerGroups":["vagrant"],
      "options":{
          "nginxExtraConfigs":["rewrite ^/test(.*) /test/path$1 last;"]
      }
   },
   "upstreams":[{
       "upstream":"example.com:80",
       "requestId":"test1",
       "rackId":"us_east_1a"
    }]
}

##DELETE /state/{serviceId}

Removes the service from the current state and clears any associated base paths. Returns a BaragonServiceState object of the deleted service.

###Example Request

requests.delete("192.168.33.20:8080/baragon/v2/state/test1")

###Example Response

{
   "service":{
      "serviceId":"test1",
      "owners":["[email protected]"],
      "serviceBasePath":"/test1",
      "loadBalancerGroups":["vagrant"],
      "options":{
          "nginxExtraConfigs":["rewrite ^/test(.*) /test/path$1 last;"]
      }
   },
   "upstreams":[{
       "upstream":"example.com:80",
       "requestId":"test1",
       "rackId":"us_east_1a"
    }]
}

#Workers | Top | State | Workers | Status | Requests | Auth | Load Balancer | Agent API | ##GET /workers

Returns a list of the addresses of the currently active baragon workers.

###Example Request

requests.get("192.168.33.20:8080/baragon/v2/workers")

###Example Response

["http://192.168.33.20:8080/baragon/v2"]

#Status | Top | State | Workers | Status | Requests | Auth | Load Balancer | Agent API | ##GET /status

Returns the current BaragonService status. (BaragonServiceStatus object)

###Example Request

requests.get("192.168.33.20:8080/baragon/v2/status")

###Example Response

{
  "leader": true,                 # Is this BaragonService instance currently the leader?
  "pendingRequestCount": 0,       # Requests in the queue
  "workerLagMs": 1423,            # Time since worker last start
  "zookeeperState": "CONNECTED",  # Zookeeper state
  "globalStateNodeSize": 1304     # Size of the /state zk node in bytes (to help avoid hitting the zk limit)
}

#Requests | Top | State | Workers | Status | Requests | Auth | Load Balancer | Agent API | ##GET /request

Get the current pending requests. Returns a list of QueuedRequestId objects

###Example Request

requests.get("192.168.33.20:8080/baragon/v2/request")

###Example Response

[
   {
      "serviceId":"test1",       # Service associated with the request
      "requestId":"requestId1",  # Unique reqeust identifier
      "index":5                  # (ie,. fifth request Baragon has seen)
   }
]

##POST /request

Add a request to the queue with the given data. Returns a BaragonResponse object. A `BaragonResponse can have the following statuses:

  • WAITING: waiting for request to be applied on all agents
  • SUCCESS: request was successfully applied on all agents
  • FAILED: request was not successfully applied on all agents, and was rolled back
  • CANCELING: request is in the process of being cancelled (rolled back)
  • CANCELED: request was cancelled (rolled back) on all agents
  • INVALID_REQUEST_NOOP: request was invalid and no action was taken on any load balancer
  • UNKNOWN: unknown.

###Example Request

data = {
  "loadBalancerRequestId":"requestId", # Unique request id
  "loadBalancerService":{
    "serviceId":"testService",
    "owners":["[email protected]"],
    "serviceBasePath":"/basepath",
    "loadBalancerGroups":["vagrant"],
    "options":{
		  "nginxExtraConfigs": [
			  "rewrite ^/test(.*) /test/v1/$1 last;"
		  ]
    }
  },
  "addUpstreams":[
    {"upstream":"example.com:80","requestId":"requestId","rack":"us_east_1a"}
  ],
  "removeUpstreams":[]
}
headers = {'Content-type': 'application/json'}
requests.post("http://192.168.33.20:8080/baragon/v2/request", data=data, headers=headers)

NOTE The options hash can hold any objects you need it to. These values will later be available in the handlebars template under service.options

###Example Response

  • WAITING
{
   "loadBalancerRequestId": "requestId",
   "loadBalancerState": "WAITING",
   "message": "Queued as QueuedRequestId{serviceId=testService, requestId=requestId, index=2164}",
   "agentResponses": {
      "APPLY": [] 
   }
}
  • SUCCESS
{
   "loadBalancerRequestId": "requestId",
   "loadBalancerState": "SUCCESS",
   "message": "APPLY request succeeded! Added upstreams [example.com:80], removed upstreams []",
   "agentResponses": {
      "APPLY": [
         {
            "url": "http://192.168.33.22:8081/baragon-agent/v2/request/requestId",
            "attempt": 0,
            "statusCode": 200,
            "content": null,
            "exception": null
         }
      ] 
   }
}

##GET /request/{requestId}

Returns the status of a particular request via a BaragonResponse object. This is the same type of response as the initial POST request to the /request endpoint. See above for possible statuses

###Example Request

requests.get("192.168.33.20:8080/baragon/v2/request/requestId")

###Example Response

{
   "loadBalancerRequestId": "requestId",
   "loadBalancerState": "SUCCESS",
   "message": "Queued as QueuedRequestId{serviceId=testService, requestId=requestId, index=2164}",
   "agentResponses": {
      "APPLY": [
         {
            "url": "http://192.168.33.22:8081/baragon-agent/v2/request/MDSrequestId",
            "attempt": 0,
            "statusCode": 200,
            "content": null,
            "exception": null
         }
      ] 
   }
}

#Auth | Top | State | Workers | Status | Requests | Auth | Load Balancer | Agent API | ##GET /auth/keys

Returns the current list of auth keys (Must use the master auth key to access this)

###Example Request

params = {"authkey":"my-master-key"}
requests.get("192.168.33.20:8080/baragon/v2/auth/keys", params=params)

###Example Response

[
   {
      "value": "my-regular-key",
      "owner": "[email protected]",
      "createdAt": 1409435929246,
      "expiredAt": null
   }
]

##DELETE /auth/keys/{key}

Delete {key} from the list of valid auth keys (Must use the master auth key to access this)

###Example Request

params = {"authkey":"my-master-key"}
requests.delete("192.168.33.20:8080/baragon/v2/auth/keys/expiringauthkey", params=params)

###Example Response

{
   "value": "expiringauthkey",
   "owner": "[email protected]",
   "createdAt": 1409435929246,
   "expiredAt": null
}

##POST /auth/keys/{key}

Add a new valid auth key (Must use the master auth key to access this)

###Example Request

params = {"authkey":"my-master-key"}
headers = {'Content-type': 'application/json'}
data = {
   "value": "newauthkey",
   "owner": "[email protected]"
}

requests.post("192.168.33.20:8080/baragon/v2/auth/keys", data=data, params=params, headers=headers)

###Example Response

{
   "value": "expiringauthkey",
   "owner": "[email protected]",
   "createdAt": 1409435929246,
   "expiredAt": null
}

#Load Balancer | Top | State | Workers | Status | Requests | Auth | Load Balancer | Agent API | ##GET /load-balancer

Returns a list of the current load balancer clusters/groups

###Example Request

requests.get("192.168.33.20:8080/baragon/v2/load-balancer")

###Example Response

[
   "vagrant",
   "vagrant2"
]

##GET /load-balancer/{cluster}

Returns a BaragonGroup object for cluster named cluster

###Example Request

requests.get("192.168.33.20:8080/load-balancer/vagrant")

###Example Response

{
   "name":"vagrant",
   "domain":"vagrant.baragon.biz",
   "sources":[
     "my-test-elb"
   ]
}

##GET /load-balancer/{cluster}/agents

Returns the currently active baragon agents for the specified load balancer cluster

###Example Request

requests.get("192.168.33.20:8080/baragon/v2/load-balancer/vagrant/agents")

###Example Response

[
   {
      "baseAgentUri": "http://192.168.33.21:8081/baragon/v2",
      "agentId": "192.168.33.21:8081",
      "domain": "vagrant.baragon.biz"
   }
]

##GET /load-balancer/{cluster}/known-agents

Returns all Baragon agents that Baragon service has seen for the specified load balancer cluster

###Example Request

requests.get("192.168.33.20:8080/baragon/v2/load-balancer/vagrant/known-agents")

###Example Response

[
   {
      "baseAgentUri": "http://192.168.33.21:8081/baragon/v2",
      "agentId": "192.168.33.21:8081",
      "domain": "vagrant.baragon.biz",
      "lastSeenAt": 1423693860906
   }
]

##DELETE /load-balancer/{cluster}/known-agents/{agentId}

Remove the specified agent from the list of known agents. This will NOT remove if from the active agents if it is still connected in zookeeper

###Example Request

agentId = "192.168.33.21:8081"
requests.delete("192.168.33.20:8080/baragon/v2/load-balancer/vagrant/known-agents/{0}".format(agentId))

##GET /load-balancer/{cluster}/base-path/all

Get the list of base paths for the specified cluster

###Example Request

requests.get("192.168.33.20:8080/baragon/v2/load-balancer/vagrant/base-path/all")

###Example Response

[
   "/test1",
   "/test2"
]

##DELETE /load-balancer/{cluster}/base-path

Remove the lock on a base path for the specified cluster

###Example Request

params = {"basePath":"/test"}
requests.delete("192.168.33.20:8080/baragon/v2/load-balancer/vagrant/base-path", params=params)

##GET /load-balancer/{cluster}/base-path

Return the service associated with the specified base path

###Example Request

params = {"basePath":"/test"}
requests.get("192.168.33.20:8080/baragon/v2/load-balancer/vagrant/base-path", params=params)

###Example Response

{
   "service":{
      "serviceId":"test",
      "owners":["[email protected]"],
      "serviceBasePath":"/test",
      "loadBalancerGroups":["vagrant"],
      "options":{
          "nginxExtraConfigs":["rewrite ^/test(.*) /test/path$1 last;"]
      }
   },
   "upstreams":[{
       "upstream":"example.com:80",
       "requestId":"testrequest",
       "rackId":"us_east_1a"
    }]
}

##POST /load-balancer/{cluster}/sources

Add a traffic source (ie. ELB name). Returns a BaragonGroup object

###Example Request

params = {'source':'my-test-elb'}
requests.post("192.168.33.20:8080/load-balancer/vagrant/sources", params=params)

###Example Response

{
   "name":"vagrant",
   "domain":"vagrant.baragon.biz",
   "sources":[
     "my-test-elb"
   ]
}

##DELETE /load-balancer/{cluster}/sources

Remove a traffic source (ie. ELB name). Optionally returns a BaragonGroup object

###Example Request

params = {'source':'my-test-elb'}
requests.delete("192.168.33.20:8080/load-balancer/vagrant/sources", params=params)

###Example Response

{
   "name":"vagrant",
   "domain":"vagrant.baragon.biz",
   "sources":[]
}

| Top | State | Workers | Status | Requests | Auth | Load Balancer | Agent API |

#Agent API

The Baragon Agent API is generally only used by BaragonService to trigger requests, but the status endpoint can be useful for monitoring purposes.

##POST /request/{requestId}

Execute a request with the specified requestId. Request data will be fetched from zookeeper by the agent so only the ID is needed.

###Example Request

requests.post("192.168.33.21:8882/baragon-agent/v2/request/test-1")

###Example Response This can return:

  • 200: Request was applied successfully
  • 400: The request could not be completed due to an error caught by Baragon and the Agent has attempted to revert the changes
  • 500: The request could not be completed due to an unforseen error, the Agent may not have been abel to successfully revert the changes

##GET /status

Get the status of the agent, returns a BaragonAgentStatus object.

###Example Request

requests.get("192.168.33.21:8882/baragon-agent/v2/status")

###Example Response

{
  "group": "vagrant", # load balancer group name from Agent config
  "validConfigs": true, # Is the current configuration valid accoridng to the provided checkConfigCommand
  "errorMessage": "message", # Current error message returned by the checkConfigCommand if there is one
  "leader": true, # Is this agent currently the zk leader among agents in the same loadBalancerGroup
  "mostRecentRequestId": "test1", # ID of the last request processed
  "zookeeperState": "CONNECTED" # Current zookeeper connection state
}

| Top | State | Workers | Status | Requests | Auth | Load Balancer | Agent API |