2 * Copyright © 2019 Bell Canada.
3 * Modifications Copyright © 2018-2019 IBM.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
18 package org.onap.ccsdk.cds.blueprintsprocessor.functions.ansible.executor
20 import com.fasterxml.jackson.databind.JsonNode
21 import com.fasterxml.jackson.databind.ObjectMapper
22 import com.fasterxml.jackson.databind.node.TextNode
23 import kotlinx.coroutines.delay
24 import org.onap.ccsdk.cds.blueprintsprocessor.core.api.data.ExecutionServiceInput
25 import org.onap.ccsdk.cds.blueprintsprocessor.rest.service.BluePrintRestLibPropertyService
26 import org.onap.ccsdk.cds.blueprintsprocessor.rest.service.BlueprintWebClientService
27 import org.onap.ccsdk.cds.blueprintsprocessor.services.execution.AbstractComponentFunction
28 import org.onap.ccsdk.cds.controllerblueprints.core.asJsonNode
29 import org.onap.ccsdk.cds.controllerblueprints.core.asJsonPrimitive
30 import org.onap.ccsdk.cds.controllerblueprints.core.asJsonString
31 import org.onap.ccsdk.cds.controllerblueprints.core.isNullOrMissing
32 import org.onap.ccsdk.cds.controllerblueprints.core.returnNullIfMissing
33 import org.onap.ccsdk.cds.controllerblueprints.core.rootFieldsToMap
34 import org.onap.ccsdk.cds.controllerblueprints.core.utils.JacksonUtils
35 import org.slf4j.LoggerFactory
36 import org.springframework.beans.factory.config.ConfigurableBeanFactory
37 import org.springframework.context.annotation.Scope
38 import org.springframework.http.HttpMethod
39 import org.springframework.stereotype.Component
41 import java.net.URLEncoder
42 import java.util.NoSuchElementException
45 * ComponentRemoteAnsibleExecutor
47 * Component that launches a run of a job template (INPUT_JOB_TEMPLATE_NAME) representing an Ansible playbook,
48 * and its parameters, via the AWX server identified by the INPUT_ENDPOINT_SELECTOR parameter.
50 * It supports extra_vars, limit, tags, skip-tags, inventory (by name or Id) Ansible parameters.
51 * It reports the results of the execution via properties, named execute-command-status and execute-command-logs
53 * @author Serge Simard
55 @Component("component-remote-ansible-executor")
56 @Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE)
57 open class ComponentRemoteAnsibleExecutor(
58 private val blueprintRestLibPropertyService: BluePrintRestLibPropertyService,
59 private val mapper: ObjectMapper
61 AbstractComponentFunction() {
63 // HTTP related constants
64 private val HTTP_SUCCESS = 200..202
65 private val GET = HttpMethod.GET.name
66 private val POST = HttpMethod.POST.name
67 private val plainTextHeaders = mapOf("Accept" to "text/plain")
69 var checkDelay: Long = 15_000
73 private val log = LoggerFactory.getLogger(ComponentRemoteAnsibleExecutor::class.java)
75 // input fields names accepted by this executor
76 const val INPUT_ENDPOINT_SELECTOR = "endpoint-selector"
77 const val INPUT_JOB_TEMPLATE_NAME = "job-template-name"
78 const val INPUT_WORKFLOW_JOB_TEMPLATE_NAME = "workflow-job-template-id"
79 const val INPUT_LIMIT_TO_HOST = "limit"
80 const val INPUT_INVENTORY = "inventory"
81 const val INPUT_EXTRA_VARS = "extra-vars"
82 const val INPUT_TAGS = "tags"
83 const val INPUT_SKIP_TAGS = "skip-tags"
85 // output fields names (and values) populated by this executor; aligned with job details status field values.
86 const val ATTRIBUTE_EXEC_CMD_ARTIFACTS = "ansible-artifacts"
87 const val ATTRIBUTE_EXEC_CMD_STATUS = "ansible-command-status"
88 const val ATTRIBUTE_EXEC_CMD_LOG = "ansible-command-logs"
89 const val ATTRIBUTE_EXEC_CMD_STATUS_ERROR = "error"
92 override suspend fun processNB(executionRequest: ExecutionServiceInput) {
95 val restClientService = getAWXRestClient()
97 // Get either a job template name or a workflow template name property
98 var workflowURIPrefix = ""
99 var jobTemplateName = getOperationInput(INPUT_JOB_TEMPLATE_NAME).returnNullIfMissing()?.textValue() ?: ""
100 val isWorkflowJT = jobTemplateName.isBlank()
102 jobTemplateName = getOperationInput(INPUT_WORKFLOW_JOB_TEMPLATE_NAME).asText()
103 workflowURIPrefix = "workflow_"
106 val jtId = lookupJobTemplateIDByName(restClientService, jobTemplateName, workflowURIPrefix)
107 if (jtId.isNotEmpty()) {
108 runJobTemplateOnAWX(restClientService, jobTemplateName, jtId, workflowURIPrefix)
110 val message = "Workflow/Job template $jobTemplateName does not exists"
112 setNodeOutputErrors(ATTRIBUTE_EXEC_CMD_STATUS_ERROR, message)
114 } catch (e: Exception) {
115 log.error("Failed to process on remote executor (${e.message})", e)
116 setNodeOutputErrors(ATTRIBUTE_EXEC_CMD_STATUS_ERROR, "Failed to process on remote executor (${e.message})")
120 override suspend fun recoverNB(runtimeException: RuntimeException, executionRequest: ExecutionServiceInput) {
121 val message = "Error in ComponentRemoteAnsibleExecutor : ${runtimeException.message}"
122 log.error(message, runtimeException)
123 setNodeOutputErrors(ATTRIBUTE_EXEC_CMD_STATUS_ERROR, message)
126 /** Creates a TokenAuthRestClientService, since this executor expect type property to be "token-auth" and the
127 * token to be an OAuth token (access_token response field) generated via the AWX /api/o/token rest endpoint
128 * The token field is of the form "Bearer access_token_from_response", for example :
129 * "blueprintsprocessor.restclient.awx.type=token-auth"
130 * "blueprintsprocessor.restclient.awx.url=http://awx-endpoint"
131 * "blueprintsprocessor.restclient.awx.token=Bearer J9gEtMDzxcqw25574fioY9VAhLDIs1"
133 * Also supports json endpoint definition via DSL entry, e.g.:
134 * "ansible-remote-endpoint": {
135 * "type": "token-auth",
136 * "url": "http://awx-endpoint",
137 * "token": "Bearer J9gEtMDzxcqw25574fioY9VAhLDIs1"
140 private fun getAWXRestClient(): BlueprintWebClientService {
142 val endpointSelector = getOperationInput(INPUT_ENDPOINT_SELECTOR)
145 return blueprintRestLibPropertyService.blueprintWebClientService(endpointSelector)
146 } catch (e: NoSuchElementException) {
147 throw IllegalArgumentException("No value provided for input selector $endpointSelector", e)
152 * Finds the job template ID based on the job template name provided in the request
154 private fun lookupJobTemplateIDByName(
155 awxClient: BlueprintWebClientService,
156 job_template_name: String?,
157 workflowPrefix: String
159 val encodedJTName = URI(
161 "/api/v2/${workflowPrefix}job_templates/$job_template_name/",
165 // Get Job Template details by name
166 var response = awxClient.exchangeResource(GET, encodedJTName, "")
167 val jtDetails: JsonNode = mapper.readTree(response.body)
168 return jtDetails.at("/id").asText()
172 * Performs the job template execution on AWX, ie. prepare arguments as per job template
173 * requirements (ask fields) and provided overriding values. Then it launches the run, and monitors
174 * its execution. Finally, it retrieves the job results via the stdout api.
175 * The status and output attributes are populated in the process.
177 private suspend fun runJobTemplateOnAWX(
178 awxClient: BlueprintWebClientService,
179 job_template_name: String?,
181 workflowPrefix: String
183 setNodeOutputProperties("preparing".asJsonPrimitive(), "".asJsonPrimitive(), "".asJsonPrimitive())
185 // Get Job Template requirements
186 var response = awxClient.exchangeResource(GET, "/api/v2/${workflowPrefix}job_templates/$jtId/launch/", "")
187 // FIXME: handle non-successful SC
188 val jtLaunchReqs: JsonNode = mapper.readTree(response.body)
189 val payload = prepareLaunchPayload(awxClient, jtLaunchReqs, workflowPrefix.isNotBlank())
191 log.info("Running job with $payload, for requestId $processId.")
193 // Launch the job for the targeted template
194 var jtLaunched: JsonNode = JacksonUtils.objectMapper.createObjectNode()
195 response = awxClient.exchangeResource(POST, "/api/v2/${workflowPrefix}job_templates/$jtId/launch/", payload)
196 if (response.status in HTTP_SUCCESS) {
197 jtLaunched = mapper.readTree(response.body)
198 val fieldsIgnored: JsonNode = jtLaunched.at("/ignored_fields")
199 if (fieldsIgnored.rootFieldsToMap().isNotEmpty()) {
200 log.warn("Ignored fields : $fieldsIgnored, for requestId $processId.")
204 if (response.status in HTTP_SUCCESS) {
205 val jobId: String = jtLaunched.at("/id").asText()
207 // Poll current job status while job is not executed
208 var jobStatus = "unknown"
209 var jobEndTime = "null"
210 while (jobEndTime == "null") {
211 response = awxClient.exchangeResource(GET, "/api/v2/${workflowPrefix}jobs/$jobId/", "")
212 val jobLaunched: JsonNode = mapper.readTree(response.body)
213 jobStatus = jobLaunched.at("/status").asText()
214 jobEndTime = jobLaunched.at("/finished").asText()
218 log.info("Execution of job template $job_template_name in job #$jobId finished with status ($jobStatus) for requestId $processId")
220 populateJobRunResponse(awxClient, jobId, workflowPrefix, jobStatus)
222 // The job template requirements were not fulfilled with the values passed in. The message below will
223 // provide more information via the response, like the ignored_fields, or variables_needed_to_start,
224 // or resources_needed_to_start, in order to help user pinpoint the problems with the request.
225 val message = "Execution of job template $job_template_name could not be started for requestId $processId." +
226 " (Response: ${response.body}) "
228 setNodeOutputErrors(ATTRIBUTE_EXEC_CMD_STATUS_ERROR, message)
233 * Extracts the output from either a job stdout call OR collects the workflow run output, as well as the artifacts
234 * and populate the component corresponding output properties
236 private fun populateJobRunResponse(
237 awxClient: BlueprintWebClientService,
239 workflowPrefix: String,
243 val collectedResponses = StringBuilder(4096)
244 val artifacts: MutableMap<String, JsonNode> = mutableMapOf()
246 collectJobIdsRelatedToJobRun(awxClient, jobId, workflowPrefix).forEach { aJobId ->
248 // Collect the response text from the corresponding jobIds
249 var response = awxClient.exchangeResource(GET, "/api/v2/jobs/$aJobId/stdout/?format=txt", "", plainTextHeaders)
250 if (response.status in HTTP_SUCCESS) {
251 val jobOutput = response.body
253 .append("Output for Job $aJobId :" + System.lineSeparator())
255 .append(System.lineSeparator())
256 log.info("Response for job $aJobId: \n $jobOutput \n")
258 log.warn("Could not gather response for job $aJobId. Status=${response.status}")
261 // Collect artifacts variables from each job and gather them up in one json node
262 response = awxClient.exchangeResource(GET, "/api/v2/jobs/$aJobId/", "")
263 if (response.status in HTTP_SUCCESS) {
264 val jobArtifacts = mapper.readTree(response.body).at("/artifacts")
265 if (jobArtifacts != null) {
266 artifacts.putAll(jobArtifacts.rootFieldsToMap())
271 log.info("Artifacts for job $jobId: \n $artifacts \n")
273 setNodeOutputProperties(jobStatus.asJsonPrimitive(), collectedResponses.toString().asJsonPrimitive(), artifacts.asJsonNode())
277 * List all the job Ids for a give workflow, i.e. sub jobs, or the jobId if not a workflow instance
279 private fun collectJobIdsRelatedToJobRun(awxClient: BlueprintWebClientService, jobId: String, workflowPrefix: String): Array<String> {
281 var jobIds: Array<String>
283 if (workflowPrefix.isNotEmpty()) {
284 var response = awxClient.exchangeResource(GET, "/api/v2/${workflowPrefix}jobs/$jobId/workflow_nodes/", "")
285 val jobDetails = mapper.readTree(response.body).at("/results")
287 // gather up job Id of all actual job nodes that ran during the workflow
288 jobIds = emptyArray()
289 for (jobDetail in jobDetails.elements()) {
290 if (jobDetail.at("/do_not_run").asText() == "false") {
291 jobIds = jobIds.plus(jobDetail.at("/summary_fields/job/id").asText())
295 jobIds = arrayOf(jobId)
301 * Prepares the JSON payload expected by the job template api,
302 * by applying the overrides that were provided
303 * and allowed by the template definition flags in jtLaunchReqs
305 private fun prepareLaunchPayload(
306 awxClient: BlueprintWebClientService,
307 jtLaunchReqs: JsonNode,
310 val payload = JacksonUtils.objectMapper.createObjectNode()
312 // Parameter defaults
313 val inventoryProp = getOptionalOperationInput(INPUT_INVENTORY)
314 val extraArgs = getOperationInput(INPUT_EXTRA_VARS)
317 val limitProp = getOptionalOperationInput(INPUT_LIMIT_TO_HOST)
318 val tagsProp = getOptionalOperationInput(INPUT_TAGS)
319 val skipTagsProp = getOptionalOperationInput(INPUT_SKIP_TAGS)
321 val askLimitOnLaunch = jtLaunchReqs.at("/ask_limit_on_launch").asBoolean()
322 if (askLimitOnLaunch && !limitProp.isNullOrMissing()) {
323 payload.set<JsonNode>(INPUT_LIMIT_TO_HOST, limitProp)
325 val askTagsOnLaunch = jtLaunchReqs.at("/ask_tags_on_launch").asBoolean()
326 if (askTagsOnLaunch && !tagsProp.isNullOrMissing()) {
327 payload.set<JsonNode>(INPUT_TAGS, tagsProp)
329 if (askTagsOnLaunch && !skipTagsProp.isNullOrMissing()) {
330 payload.set<JsonNode>("skip_tags", skipTagsProp)
334 val askInventoryOnLaunch = jtLaunchReqs.at("/ask_inventory_on_launch").asBoolean()
335 if (askInventoryOnLaunch && !inventoryProp.isNullOrMissing()) {
336 var inventoryKeyId = if (inventoryProp is TextNode) {
337 resolveInventoryIdByName(awxClient, inventoryProp.textValue())?.asJsonPrimitive()
341 payload.set<JsonNode>(INPUT_INVENTORY, inventoryKeyId)
344 payload.set<JsonNode>("extra_vars", extraArgs)
346 return payload.asJsonString(false)
349 private fun resolveInventoryIdByName(awxClient: BlueprintWebClientService, inventoryProp: String): Int? {
350 var invId: Int? = null
352 // Get Inventory by name
353 val encoded = URLEncoder.encode(inventoryProp)
354 val response = awxClient.exchangeResource(GET, "/api/v2/inventories/?name=$encoded", "")
355 if (response.status in HTTP_SUCCESS) {
356 // Extract the inventory ID from response
357 val invDetails = mapper.readTree(response.body)
358 val nbInvFound = invDetails.at("/count").asInt()
359 if (nbInvFound == 1) {
360 invId = invDetails["results"][0]["id"].asInt()
361 log.info("Resolved inventory $inventoryProp to ID #: $invId")
366 val message = "Could not resolve inventory $inventoryProp by name..."
368 throw IllegalArgumentException(message)
375 * Utility function to set the output properties of the executor node
377 private fun setNodeOutputProperties(status: JsonNode, message: JsonNode, artifacts: JsonNode) {
378 setAttribute(ATTRIBUTE_EXEC_CMD_STATUS, status)
379 log.info("Executor status : $status")
380 setAttribute(ATTRIBUTE_EXEC_CMD_ARTIFACTS, artifacts)
381 log.info("Executor artifacts: $artifacts")
382 setAttribute(ATTRIBUTE_EXEC_CMD_LOG, message)
383 log.info("Executor message : $message")
387 * Utility function to set the output properties and errors of the executor node, in cas of errors
389 private fun setNodeOutputErrors(status: String, message: String, artifacts: JsonNode = "".asJsonPrimitive()) {
390 setAttribute(ATTRIBUTE_EXEC_CMD_STATUS, status.asJsonPrimitive())
391 setAttribute(ATTRIBUTE_EXEC_CMD_LOG, message.asJsonPrimitive())
392 setAttribute(ATTRIBUTE_EXEC_CMD_ARTIFACTS, artifacts)
394 addError(status, ATTRIBUTE_EXEC_CMD_LOG, message)