runner: Use public API for scheduling simulation jobs

This change updates the web runner to not require direct database access
for scheduling simulation jobs. Instead, the runner polls the public
REST API for available jobs and reports its results through there.

1 files changed, 264 insertions, 0 deletions

diff --git a/opendc-web/opendc-web-runner/src/test/kotlin/org/opendc/web/client/ApiClientTest.kt b/opendc-web/opendc-web-runner/src/test/kotlin/org/opendc/web/client/ApiClientTest.kt
new file mode 100644
index 00000000..3a0730a6
--- /dev/null
+++ b/opendc-web/opendc-web-runner/src/test/kotlin/org/opendc/web/client/ApiClientTest.kt
@@ -0,0 +1,264 @@
+/*
+ * Copyright (c) 2021 AtLarge Research
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+package org.opendc.web.client
+
+import io.ktor.client.*
+import io.ktor.client.engine.mock.*
+import io.ktor.http.*
+import kotlinx.coroutines.runBlocking
+import org.junit.jupiter.api.Assertions.assertNotNull
+import org.junit.jupiter.api.Assertions.assertNull
+import org.junit.jupiter.api.Test
+import java.net.URI
+
+/**
+ * Test suite for the [ApiClient] class.
+ */
+class ApiClientTest {
+    /**
+     * The Ktor [HttpClient] instance.
+     */
+    private val ktor = HttpClient(MockEngine) {
+        engine {
+            addHandler { request ->
+                when (request.url.fullPath) {
+                    "/oauth/token" -> {
+                        val responseHeaders = headersOf("Content-Type" to listOf(ContentType.Application.Json.toString()))
+                        respond(
+                            """
+                        {
+                          "access_token": "eyJz93a...k4laUWw",
+                          "token_type": "Bearer",
+                          "expires_in": 86400
+                        }
+                            """.trimIndent(),
+                            headers = responseHeaders
+                        )
+                    }
+                    "/portfolios/5fda5daa97dca438e7cb0a4c" -> {
+                        val responseHeaders = headersOf("Content-Type" to listOf(ContentType.Application.Json.toString()))
+                        respond(
+                            """
+                        {
+                          "data": {
+                            "_id": "string",
+                            "projectId": "string",
+                            "name": "string",
+                            "scenarioIds": [
+                              "string"
+                            ],
+                            "targets": {
+                              "enabledMetrics": [
+                                "string"
+                              ],
+                              "repeatsPerScenario": 0
+                            }
+                          }
+                        }
+                            """.trimIndent(),
+                            headers = responseHeaders
+                        )
+                    }
+                    "/portfolios/x" -> {
+                        val responseHeaders = headersOf("Content-Type" to listOf(ContentType.Application.Json.toString()))
+                        respond(
+                            """
+                        {
+                          "message": "Not Found"
+                        }
+                            """.trimIndent(),
+                            headers = responseHeaders, status = HttpStatusCode.NotFound
+                        )
+                    }
+                    "/scenarios/5fda5db297dca438e7cb0a4d" -> {
+                        val responseHeaders = headersOf("Content-Type" to listOf(ContentType.Application.Json.toString()))
+                        respond(
+                            """
+                        {
+                          "data": {
+                            "_id": "string",
+                            "portfolioId": "string",
+                            "name": "string",
+                            "trace": {
+                              "traceId": "string",
+                              "loadSamplingFraction": 0
+                            },
+                            "topology": {
+                              "topologyId": "string"
+                            },
+                            "operational": {
+                              "failuresEnabled": true,
+                              "performanceInterferenceEnabled": true,
+                              "schedulerName": "string"
+                            }
+                          }
+                        }
+                            """.trimIndent(),
+                            headers = responseHeaders
+                        )
+                    }
+                    "/scenarios/x" -> {
+                        val responseHeaders = headersOf("Content-Type" to listOf(ContentType.Application.Json.toString()))
+                        respond(
+                            """
+                        {
+                          "message": "Not Found"
+                        }
+                            """.trimIndent(),
+                            headers = responseHeaders, status = HttpStatusCode.NotFound
+                        )
+                    }
+                    "/topologies/5f9825a6cf6e4c24e380b86f" -> {
+                        val responseHeaders = headersOf("Content-Type" to listOf(ContentType.Application.Json.toString()))
+                        respond(
+                            """
+                            {
+                              "data": {
+                                "_id": "string",
+                                "projectId": "string",
+                                "name": "string",
+                                "rooms": [
+                                  {
+                                    "_id": "string",
+                                    "name": "string",
+                                    "tiles": [
+                                      {
+                                        "_id": "string",
+                                        "positionX": 0,
+                                        "positionY": 0,
+                                        "rack": {
+                                          "_id": "string",
+                                          "name": "string",
+                                          "capacity": 0,
+                                          "powerCapacityW": 0,
+                                          "machines": [
+                                            {
+                                              "_id": "string",
+                                              "position": 0,
+                                              "cpus": [
+                                                {
+                                                  "_id": "string",
+                                                  "name": "string",
+                                                  "clockRateMhz": 0,
+                                                  "numberOfCores": 0
+                                                }
+                                              ],
+                                              "gpus": [
+                                                {
+                                                  "_id": "string",
+                                                  "name": "string",
+                                                  "clockRateMhz": 0,
+                                                  "numberOfCores": 0
+                                                }
+                                              ],
+                                              "memories": [
+                                                {
+                                                  "_id": "string",
+                                                  "name": "string",
+                                                  "speedMbPerS": 0,
+                                                  "sizeMb": 0
+                                                }
+                                              ],
+                                              "storages": [
+                                                {
+                                                  "_id": "string",
+                                                  "name": "string",
+                                                  "speedMbPerS": 0,
+                                                  "sizeMb": 0
+                                                }
+                                              ]
+                                            }
+                                          ]
+                                        }
+                                      }
+                                    ]
+                                  }
+                                ]
+                              }
+                            }
+                            """.trimIndent(),
+                            headers = responseHeaders
+                        )
+                    }
+                    "/topologies/x" -> {
+                        val responseHeaders =
+                            headersOf("Content-Type" to listOf(ContentType.Application.Json.toString()))
+                        respond(
+                            """
+                        {
+                          "message": "Not Found"
+                        }
+                            """.trimIndent(),
+                            headers = responseHeaders, status = HttpStatusCode.NotFound
+                        )
+                    }
+                    else -> error("Unhandled ${request.url}")
+                }
+            }
+        }
+    }
+
+    private val auth = AuthConfiguration("auth.opendc.org", "a", "b")
+
+    @Test
+    fun testPortfolioExists(): Unit = runBlocking {
+        val client = ApiClient(URI("http://localhost:8081"), auth, client = ktor)
+        val portfolio = client.getPortfolio("5fda5daa97dca438e7cb0a4c")
+        assertNotNull(portfolio)
+    }
+
+    @Test
+    fun testPortfolioDoesNotExists(): Unit = runBlocking {
+        val client = ApiClient(URI("http://localhost:8081"), auth, client = ktor)
+        val portfolio = client.getPortfolio("x")
+        assertNull(portfolio)
+    }
+
+    @Test
+    fun testScenarioExists(): Unit = runBlocking {
+        val client = ApiClient(URI("http://localhost:8081"), auth, client = ktor)
+        val scenario = client.getScenario("5fda5db297dca438e7cb0a4d")
+        assertNotNull(scenario)
+    }
+
+    @Test
+    fun testScenarioDoesNotExists(): Unit = runBlocking {
+        val client = ApiClient(URI("http://localhost:8081"), auth, client = ktor)
+        val scenario = client.getScenario("x")
+        assertNull(scenario)
+    }
+
+    @Test
+    fun testTopologyExists(): Unit = runBlocking {
+        val client = ApiClient(URI("http://localhost:8081"), auth, client = ktor)
+        val topology = client.getTopology("5f9825a6cf6e4c24e380b86f")
+        assertNotNull(topology)
+    }
+
+    @Test
+    fun testTopologyDoesNotExists(): Unit = runBlocking {
+        val client = ApiClient(URI("http://localhost:8081"), auth, client = ktor)
+        val topology = client.getTopology("x")
+        assertNull(topology)
+    }
+}