refactor: Remodel workloads and compute resource

This change remodels our model for workloads and compute resources in
order to support VM/container functionality where multiple workloads run
on a single machine.

In particular, we make the following changes:

- Move the compute-related source code into the `opendc-compute` module.
- Change from application-based model to image-based model, where the
image has exclusive access over the machine, instead of applications
that share the machine. We may model in the future again
applications/operating system, but at the moment, we do not need this
granularity, given that the workload traces can be simulated using VMs.

1 files changed, 70 insertions, 0 deletions

diff --git a/opendc/opendc-compute/src/test/kotlin/com/atlarge/opendc/compute/metal/driver/FakeBareMetalDriverTest.kt b/opendc/opendc-compute/src/test/kotlin/com/atlarge/opendc/compute/metal/driver/FakeBareMetalDriverTest.kt
new file mode 100644
index 00000000..bc8f677e
--- /dev/null
+++ b/opendc/opendc-compute/src/test/kotlin/com/atlarge/opendc/compute/metal/driver/FakeBareMetalDriverTest.kt
@@ -0,0 +1,70 @@
+/*
+ * MIT License
+ *
+ * Copyright (c) 2020 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 com.atlarge.opendc.compute.metal.driver
+
+import com.atlarge.odcsim.SimulationEngineProvider
+import com.atlarge.opendc.compute.core.Flavor
+import com.atlarge.opendc.compute.core.ProcessingUnit
+import com.atlarge.opendc.compute.core.Server
+import com.atlarge.opendc.compute.core.ServerState
+import com.atlarge.opendc.compute.core.image.FlopsApplicationImage
+import com.atlarge.opendc.compute.core.monitor.ServerMonitor
+import com.atlarge.opendc.compute.metal.PowerState
+import java.util.ServiceLoader
+import java.util.UUID
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.runBlocking
+import org.junit.jupiter.api.Test
+
+internal class FakeBareMetalDriverTest {
+    /**
+     * A smoke test for the bare-metal driver.
+     */
+    @Test
+    fun smoke() {
+        val provider = ServiceLoader.load(SimulationEngineProvider::class.java).first()
+        val system = provider({ ctx ->
+            val flavor = Flavor(listOf(ProcessingUnit("Intel", "Xeon", "amd64", 2300.0, 4)))
+            val image = FlopsApplicationImage(1000, 2)
+            val monitor = object : ServerMonitor {
+                override suspend fun onUpdate(server: Server, previousState: ServerState) {
+                    println(server)
+                }
+            }
+            val driver = FakeBareMetalDriver(UUID.randomUUID(), "test", flavor)
+
+            driver.init(monitor)
+            driver.setImage(image)
+            driver.setPower(PowerState.POWER_ON)
+            delay(5)
+            println(driver.refresh())
+        }, name = "sim")
+
+        runBlocking {
+            system.run()
+            system.terminate()
+        }
+    }
+}