compute: Extract API from compute service

This change extracts the API for the OpenDC Compute service into a separate
module to establish a clearer boundary between the interface meant for
consumers and interfaces meant for the the serve implementation.

16 files changed, 16 insertions, 322 deletions

diff --git a/simulator/opendc-compute/opendc-compute-core/build.gradle.kts b/simulator/opendc-compute/opendc-compute-core/build.gradle.kts
index a1b6ec0f..3f56f410 100644
--- a/simulator/opendc-compute/opendc-compute-core/build.gradle.kts
+++ b/simulator/opendc-compute/opendc-compute-core/build.gradle.kts
@@ -30,6 +30,7 @@ plugins {
 dependencies {
     api(platform(project(":opendc-platform")))
     api(project(":opendc-core"))
+    api(project(":opendc-compute:opendc-compute-api"))
     api(project(":opendc-trace:opendc-trace-core"))
     implementation(project(":opendc-utils"))
 
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/Flavor.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/Flavor.kt
deleted file mode 100644
index fcf3c871..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/Flavor.kt
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * 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.compute.core
-
-/**
- * Flavors define the compute and memory capacity of [Server] instance. To put it simply, a flavor is an available
- * hardware configuration for a server. It defines the size of a virtual server that can be launched.
- */
-public data class Flavor(
-    /**
-     * The number of (virtual) processing cores to use.
-     */
-    public val cpuCount: Int,
-
-    /**
-     * The amount of RAM available to the server (in MB).
-     */
-    public val memorySize: Long
-)
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/Server.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/Server.kt
deleted file mode 100644
index ff212613..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/Server.kt
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * 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 org.opendc.compute.core
-
-import org.opendc.compute.core.image.Image
-import org.opendc.core.resource.Resource
-
-/**
- * A stateful object representing a server instance that is running on some physical or virtual machine.
- */
-public interface Server : Resource {
-    /**
-     * The name of the server.
-     */
-    public override val name: String
-
-    /**
-     * The flavor of the server.
-     */
-    public val flavor: Flavor
-
-    /**
-     * The image of the server.
-     */
-    public val image: Image
-
-    /**
-     * The tags assigned to the server.
-     */
-    public override val tags: Map<String, String>
-
-    /**
-     * The last known state of the server.
-     */
-    public val state: ServerState
-
-    /**
-     * Register the specified [ServerWatcher] to watch the state of the server.
-     *
-     * @param watcher The watcher to register for the server.
-     */
-    public fun watch(watcher: ServerWatcher)
-
-    /**
-     * De-register the specified [ServerWatcher] from the server to stop it from receiving events.
-     *
-     * @param watcher The watcher to de-register from the server.
-     */
-    public fun unwatch(watcher: ServerWatcher)
-
-    /**
-     * Refresh the local state of the resource.
-     */
-    public suspend fun refresh()
-}
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/ServerEvent.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/ServerEvent.kt
deleted file mode 100644
index e9212832..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/ServerEvent.kt
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * 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 org.opendc.compute.core
-
-/**
- * An event that is emitted by a [Server].
- */
-public sealed class ServerEvent {
-    /**
-     * The server that emitted the event.
-     */
-    public abstract val server: Server
-
-    /**
-     * This event is emitted when the state of [server] changes.
-     *
-     * @property server The server of which the state changed.
-     * @property previousState The previous state of the server.
-     */
-    public data class StateChanged(override val server: Server, val previousState: ServerState) : ServerEvent()
-}
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/ServerState.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/ServerState.kt
deleted file mode 100644
index 4b9d7c13..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/ServerState.kt
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * 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 org.opendc.compute.core
-
-/**
- * An enumeration describing the possible states of a server.
- */
-public enum class ServerState {
-    /**
-     * The server has not yet finished the original build process.
-     */
-    BUILD,
-
-    /**
-     * The server was powered down by the user.
-     */
-    SHUTOFF,
-
-    /**
-     * The server is active and running.
-     */
-    ACTIVE,
-
-    /**
-     * The server is in error.
-     */
-    ERROR,
-
-    /**
-     * The state of the server is unknown.
-     */
-    UNKNOWN,
-}
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/ServerWatcher.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/ServerWatcher.kt
deleted file mode 100644
index a93a8382..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/ServerWatcher.kt
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * 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.compute.core
-
-/**
- * An interface used to watch the state of [Server] instances.
- */
-public interface ServerWatcher {
-    /**
-     * This method is invoked when the state of a [Server] changes.
-     *
-     * Note that the state of [server] might not reflect the state as reported by the invocation, as a call to
-     * [Server.refresh] is required to update its state.
-     *
-     * @param server The server whose state has changed.
-     * @param newState The new state of the server.
-     */
-    public fun onStateChanged(server: Server, newState: ServerState) {}
-}
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/image/Image.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/image/Image.kt
deleted file mode 100644
index 96055a46..00000000
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/image/Image.kt
+++ /dev/null
@@ -1,48 +0,0 @@
-/*
- * 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 org.opendc.compute.core.image
-
-import org.opendc.core.resource.Resource
-import org.opendc.core.resource.TagContainer
-import java.util.*
-
-/**
- * An image containing a bootable operating system that can directly be executed by physical or virtual server.
- *
- * OpenStack: A collection of files used to create or rebuild a server. Operators provide a number of pre-built OS
- * images by default. You may also create custom images from cloud servers you have launched. These custom images are
- * useful for backup purposes or for producing “gold” server images if you plan to deploy a particular server
- * configuration frequently.
- */
-public data class Image(
-    public override val uid: UUID,
-    public override val name: String,
-    public override val tags: TagContainer
-) : Resource {
-    public companion object {
-        /**
-         * An empty boot disk [Image] that exits immediately on start.
-         */
-        public val EMPTY: Image = Image(UUID.randomUUID(), "empty", emptyMap())
-    }
-}
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/Node.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/Node.kt
index 480bc224..0068da99 100644
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/Node.kt
+++ b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/Node.kt
@@ -23,8 +23,8 @@
 package org.opendc.compute.core.metal
 
 import kotlinx.coroutines.flow.Flow
-import org.opendc.compute.core.Flavor
-import org.opendc.compute.core.image.Image
+import org.opendc.compute.api.Flavor
+import org.opendc.compute.api.Image
 import org.opendc.core.Identity
 import java.util.UUID
 
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/driver/BareMetalDriver.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/driver/BareMetalDriver.kt
index 9db57127..9dcc79f7 100644
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/driver/BareMetalDriver.kt
+++ b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/driver/BareMetalDriver.kt
@@ -23,8 +23,8 @@
 package org.opendc.compute.core.metal.driver
 
 import kotlinx.coroutines.flow.Flow
-import org.opendc.compute.core.Server
-import org.opendc.compute.core.image.Image
+import org.opendc.compute.api.Image
+import org.opendc.compute.api.Server
 import org.opendc.compute.core.metal.Node
 import org.opendc.core.services.AbstractServiceKey
 import java.util.UUID
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/service/ProvisioningService.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/service/ProvisioningService.kt
index bad5b47c..604c3654 100644
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/service/ProvisioningService.kt
+++ b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/service/ProvisioningService.kt
@@ -22,7 +22,7 @@
 
 package org.opendc.compute.core.metal.service
 
-import org.opendc.compute.core.image.Image
+import org.opendc.compute.api.Image
 import org.opendc.compute.core.metal.Node
 import org.opendc.compute.core.metal.driver.BareMetalDriver
 import org.opendc.core.services.AbstractServiceKey
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/service/SimpleProvisioningService.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/service/SimpleProvisioningService.kt
index 5222f2fb..778a206d 100644
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/service/SimpleProvisioningService.kt
+++ b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/metal/service/SimpleProvisioningService.kt
@@ -23,7 +23,7 @@
 package org.opendc.compute.core.metal.service
 
 import kotlinx.coroutines.CancellationException
-import org.opendc.compute.core.image.Image
+import org.opendc.compute.api.Image
 import org.opendc.compute.core.metal.Node
 import org.opendc.compute.core.metal.driver.BareMetalDriver
 
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/Host.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/Host.kt
index 60a31b69..9a96ff6f 100644
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/Host.kt
+++ b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/Host.kt
@@ -23,7 +23,7 @@
 package org.opendc.compute.core.virt
 
 import kotlinx.coroutines.flow.Flow
-import org.opendc.compute.core.Server
+import org.opendc.compute.api.Server
 import java.util.*
 
 /**
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostListener.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostListener.kt
index b14d9bb5..4ebb9066 100644
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostListener.kt
+++ b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/HostListener.kt
@@ -22,8 +22,8 @@
 
 package org.opendc.compute.core.virt
 
-import org.opendc.compute.core.Server
-import org.opendc.compute.core.ServerState
+import org.opendc.compute.api.Server
+import org.opendc.compute.api.ServerState
 
 /**
  * Listener interface for events originating from a [Host].
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/VirtProvisioningService.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/VirtProvisioningService.kt
index 8da849af..a83b68dc 100644
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/VirtProvisioningService.kt
+++ b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/VirtProvisioningService.kt
@@ -23,9 +23,7 @@
 package org.opendc.compute.core.virt.service
 
 import kotlinx.coroutines.flow.Flow
-import org.opendc.compute.core.Flavor
-import org.opendc.compute.core.Server
-import org.opendc.compute.core.image.Image
+import org.opendc.compute.api.ComputeClient
 import org.opendc.compute.core.virt.Host
 
 /**
@@ -48,17 +46,9 @@ public interface VirtProvisioningService {
     public val hostCount: Int
 
     /**
-     * Submit the specified [Image] to the provisioning service.
-     *
-     * @param name The name of the server to deploy.
-     * @param image The image to be deployed.
-     * @param flavor The flavor of the machine instance to run this [image] on.
+     * Create a new [ComputeClient] to control the compute service.
      */
-    public suspend fun deploy(
-        name: String,
-        image: Image,
-        flavor: Flavor
-    ): Server
+    public fun newClient(): ComputeClient
 
     /**
      * Terminate the provisioning service releasing all the leased bare-metal machines.
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmSubmissionEvent.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmSubmissionEvent.kt
index f6b71e22..e31c0864 100644
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmSubmissionEvent.kt
+++ b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/virt/service/events/VmSubmissionEvent.kt
@@ -22,8 +22,8 @@
 
 package org.opendc.compute.core.virt.service.events
 
-import org.opendc.compute.core.Flavor
-import org.opendc.compute.core.image.Image
+import org.opendc.compute.api.Flavor
+import org.opendc.compute.api.Image
 import org.opendc.trace.core.Event
 
 /**
diff --git a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/workload/VmWorkload.kt b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/workload/VmWorkload.kt
index 6c724277..4f4594e9 100644
--- a/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/workload/VmWorkload.kt
+++ b/simulator/opendc-compute/opendc-compute-core/src/main/kotlin/org/opendc/compute/core/workload/VmWorkload.kt
@@ -22,7 +22,7 @@
 
 package org.opendc.compute.core.workload
 
-import org.opendc.compute.core.image.Image
+import org.opendc.compute.api.Image
 import org.opendc.core.User
 import org.opendc.core.workload.Workload
 import java.util.UUID