diff --git a/src/ApiService/.gitignore b/src/ApiService/.gitignore
new file mode 100644
index 0000000000..ff5b00c506
--- /dev/null
+++ b/src/ApiService/.gitignore
@@ -0,0 +1,264 @@
+## Ignore Visual Studio temporary files, build results, and
+## files generated by popular Visual Studio add-ons.
+
+# Azure Functions localsettings file
+local.settings.json
+
+# User-specific files
+*.suo
+*.user
+*.userosscache
+*.sln.docstates
+
+# User-specific files (MonoDevelop/Xamarin Studio)
+*.userprefs
+
+# Build results
+[Dd]ebug/
+[Dd]ebugPublic/
+[Rr]elease/
+[Rr]eleases/
+x64/
+x86/
+bld/
+[Bb]in/
+[Oo]bj/
+[Ll]og/
+
+# Visual Studio 2015 cache/options directory
+.vs/
+# Uncomment if you have tasks that create the project's static files in wwwroot
+#wwwroot/
+
+# MSTest test Results
+[Tt]est[Rr]esult*/
+[Bb]uild[Ll]og.*
+
+# NUNIT
+*.VisualState.xml
+TestResult.xml
+
+# Build Results of an ATL Project
+[Dd]ebugPS/
+[Rr]eleasePS/
+dlldata.c
+
+# DNX
+project.lock.json
+project.fragment.lock.json
+artifacts/
+
+*_i.c
+*_p.c
+*_i.h
+*.ilk
+*.meta
+*.obj
+*.pch
+*.pdb
+*.pgc
+*.pgd
+*.rsp
+*.sbr
+*.tlb
+*.tli
+*.tlh
+*.tmp
+*.tmp_proj
+*.log
+*.vspscc
+*.vssscc
+.builds
+*.pidb
+*.svclog
+*.scc
+
+# Chutzpah Test files
+_Chutzpah*
+
+# Visual C++ cache files
+ipch/
+*.aps
+*.ncb
+*.opendb
+*.opensdf
+*.sdf
+*.cachefile
+*.VC.db
+*.VC.VC.opendb
+
+# Visual Studio profiler
+*.psess
+*.vsp
+*.vspx
+*.sap
+
+# TFS 2012 Local Workspace
+$tf/
+
+# Guidance Automation Toolkit
+*.gpState
+
+# ReSharper is a .NET coding add-in
+_ReSharper*/
+*.[Rr]e[Ss]harper
+*.DotSettings.user
+
+# JustCode is a .NET coding add-in
+.JustCode
+
+# TeamCity is a build add-in
+_TeamCity*
+
+# DotCover is a Code Coverage Tool
+*.dotCover
+
+# NCrunch
+_NCrunch_*
+.*crunch*.local.xml
+nCrunchTemp_*
+
+# MightyMoose
+*.mm.*
+AutoTest.Net/
+
+# Web workbench (sass)
+.sass-cache/
+
+# Installshield output folder
+[Ee]xpress/
+
+# DocProject is a documentation generator add-in
+DocProject/buildhelp/
+DocProject/Help/*.HxT
+DocProject/Help/*.HxC
+DocProject/Help/*.hhc
+DocProject/Help/*.hhk
+DocProject/Help/*.hhp
+DocProject/Help/Html2
+DocProject/Help/html
+
+# Click-Once directory
+publish/
+
+# Publish Web Output
+*.[Pp]ublish.xml
+*.azurePubxml
+# TODO: Comment the next line if you want to checkin your web deploy settings
+# but database connection strings (with potential passwords) will be unencrypted
+#*.pubxml
+*.publishproj
+
+# Microsoft Azure Web App publish settings. Comment the next line if you want to
+# checkin your Azure Web App publish settings, but sensitive information contained
+# in these scripts will be unencrypted
+PublishScripts/
+
+# NuGet Packages
+*.nupkg
+# The packages folder can be ignored because of Package Restore
+**/packages/*
+# except build/, which is used as an MSBuild target.
+!**/packages/build/
+# Uncomment if necessary however generally it will be regenerated when needed
+#!**/packages/repositories.config
+# NuGet v3's project.json files produces more ignoreable files
+*.nuget.props
+*.nuget.targets
+
+# Microsoft Azure Build Output
+csx/
+*.build.csdef
+
+# Microsoft Azure Emulator
+ecf/
+rcf/
+
+# Windows Store app package directories and files
+AppPackages/
+BundleArtifacts/
+Package.StoreAssociation.xml
+_pkginfo.txt
+
+# Visual Studio cache files
+# files ending in .cache can be ignored
+*.[Cc]ache
+# but keep track of directories ending in .cache
+!*.[Cc]ache/
+
+# Others
+ClientBin/
+~$*
+*~
+*.dbmdl
+*.dbproj.schemaview
+*.jfm
+*.pfx
+*.publishsettings
+node_modules/
+orleans.codegen.cs
+
+# Since there are multiple workflows, uncomment next line to ignore bower_components
+# (https://github.com/github/gitignore/pull/1529#issuecomment-104372622)
+#bower_components/
+
+# RIA/Silverlight projects
+Generated_Code/
+
+# Backup & report files from converting an old project file
+# to a newer Visual Studio version. Backup files are not needed,
+# because we have git ;-)
+_UpgradeReport_Files/
+Backup*/
+UpgradeLog*.XML
+UpgradeLog*.htm
+
+# SQL Server files
+*.mdf
+*.ldf
+
+# Business Intelligence projects
+*.rdl.data
+*.bim.layout
+*.bim_*.settings
+
+# Microsoft Fakes
+FakesAssemblies/
+
+# GhostDoc plugin setting file
+*.GhostDoc.xml
+
+# Node.js Tools for Visual Studio
+.ntvs_analysis.dat
+
+# Visual Studio 6 build log
+*.plg
+
+# Visual Studio 6 workspace options file
+*.opt
+
+# Visual Studio LightSwitch build output
+**/*.HTMLClient/GeneratedArtifacts
+**/*.DesktopClient/GeneratedArtifacts
+**/*.DesktopClient/ModelManifest.xml
+**/*.Server/GeneratedArtifacts
+**/*.Server/ModelManifest.xml
+_Pvt_Extensions
+
+# Paket dependency manager
+.paket/paket.exe
+paket-files/
+
+# FAKE - F# Make
+.fake/
+
+# JetBrains Rider
+.idea/
+*.sln.iml
+
+# CodeRush
+.cr/
+
+# Python Tools for Visual Studio (PTVS)
+__pycache__/
+*.pyc
\ No newline at end of file
diff --git a/src/ApiService/ApiService.sln b/src/ApiService/ApiService.sln
new file mode 100644
index 0000000000..2fdc96dbde
--- /dev/null
+++ b/src/ApiService/ApiService.sln
@@ -0,0 +1,22 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 16
+VisualStudioVersion = 16.0.30114.105
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ApiService", "ApiService/ApiService.csproj", "{D9112E8C-A539-4B06-B78D-B01A7D0B0555}"
+EndProject
+Global
+ GlobalSection(SolutionConfigurationPlatforms) = preSolution
+ Debug|Any CPU = Debug|Any CPU
+ Release|Any CPU = Release|Any CPU
+ EndGlobalSection
+ GlobalSection(SolutionProperties) = preSolution
+ HideSolutionNode = FALSE
+ EndGlobalSection
+ GlobalSection(ProjectConfigurationPlatforms) = postSolution
+ {D9112E8C-A539-4B06-B78D-B01A7D0B0555}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+ {D9112E8C-A539-4B06-B78D-B01A7D0B0555}.Debug|Any CPU.Build.0 = Debug|Any CPU
+ {D9112E8C-A539-4B06-B78D-B01A7D0B0555}.Release|Any CPU.ActiveCfg = Release|Any CPU
+ {D9112E8C-A539-4B06-B78D-B01A7D0B0555}.Release|Any CPU.Build.0 = Release|Any CPU
+ EndGlobalSection
+EndGlobal
diff --git a/src/ApiService/ApiService/ApiService.csproj b/src/ApiService/ApiService/ApiService.csproj
new file mode 100644
index 0000000000..6e90a9fbb7
--- /dev/null
+++ b/src/ApiService/ApiService/ApiService.csproj
@@ -0,0 +1,24 @@
+
+
+ net6.0
+ v3
+ Exe
+ enable
+
+
+
+
+
+
+
+
+
+
+ PreserveNewest
+
+
+ PreserveNewest
+ Never
+
+
+
diff --git a/src/ApiService/ApiService/Program.cs b/src/ApiService/ApiService/Program.cs
new file mode 100644
index 0000000000..7ba7e2a2ad
--- /dev/null
+++ b/src/ApiService/ApiService/Program.cs
@@ -0,0 +1,19 @@
+using System.Threading.Tasks;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Azure.Functions.Worker.Configuration;
+
+namespace ApiService
+{
+ public class Program
+ {
+ public static void Main()
+ {
+ var host = new HostBuilder()
+ .ConfigureFunctionsWorkerDefaults()
+ .Build();
+
+ host.Run();
+ }
+ }
+}
\ No newline at end of file
diff --git a/src/ApiService/ApiService/QueueNodeHearbeat.cs b/src/ApiService/ApiService/QueueNodeHearbeat.cs
new file mode 100644
index 0000000000..407dd15cea
--- /dev/null
+++ b/src/ApiService/ApiService/QueueNodeHearbeat.cs
@@ -0,0 +1,69 @@
+using System;
+using Microsoft.Azure.Functions.Worker;
+using Microsoft.Extensions.Logging;
+using System.Collections.Generic;
+using System.Text.Json;
+using Azure.Data.Tables;
+using System.Threading.Tasks;
+using Azure;
+
+
+namespace ApiService
+{
+
+
+
+ enum HeartbeatType
+ {
+ MachineAlive,
+ TaskAlive,
+ }
+
+ record NodeHeartbeatEntry(string NodeId, Dictionary[] data);
+
+
+ public class QueueNodeHearbeat
+ {
+
+ private (string, string) GetStorageAccountNameAndKey(string? accountId)
+ {
+ //TableEntity
+ return ("test", "test");
+ }
+
+ private async Task GetStorageClient(string? table, string? accounId)
+ {
+ accounId ??= System.Environment.GetEnvironmentVariable("ONEFUZZ_FUNC_STORAGE");
+ if (accounId == null)
+ {
+ throw new Exception("ONEFUZZ_FUNC_STORAGE environment variable not set");
+ }
+ var (name, key) = GetStorageAccountNameAndKey(accounId);
+ var tableClient = new TableServiceClient(new Uri(accounId), new TableSharedKeyCredential(name, key));
+ await tableClient.CreateTableIfNotExistsAsync(table);
+ return tableClient;
+ }
+
+ private readonly ILogger _logger;
+
+ public QueueNodeHearbeat(ILoggerFactory loggerFactory)
+ {
+ _logger = loggerFactory.CreateLogger();
+ }
+
+ [Function("QueueNodeHearbeat")]
+ public void Run([QueueTrigger("myqueue-items", Connection = "AzureWebJobsStorage")] string msg)
+ {
+ var hb = JsonSerializer.Deserialize(msg);
+
+
+
+ _logger.LogInformation($"heartbeat: {msg}");
+ }
+ }
+}
+
+
+
+
+
diff --git a/src/ApiService/ApiService/host.json b/src/ApiService/ApiService/host.json
new file mode 100644
index 0000000000..beb2e4020b
--- /dev/null
+++ b/src/ApiService/ApiService/host.json
@@ -0,0 +1,11 @@
+{
+ "version": "2.0",
+ "logging": {
+ "applicationInsights": {
+ "samplingSettings": {
+ "isEnabled": true,
+ "excludedTypes": "Request"
+ }
+ }
+ }
+}
\ No newline at end of file
diff --git a/src/ApiService/ApiService/model.cs b/src/ApiService/ApiService/model.cs
new file mode 100644
index 0000000000..21b784c50b
--- /dev/null
+++ b/src/ApiService/ApiService/model.cs
@@ -0,0 +1,87 @@
+using Azure.Data.Tables;
+using System;
+using System.Runtime.Serialization;
+
+namespace ApiService;
+
+
+record NodeCommandStopIfFree { }
+
+record StopNodeCommand{}
+
+record StopTaskNodeCommand{
+ Guid TaskId;
+}
+
+record NodeCommandAddSshKey{
+ string PublicKey;
+}
+
+record NodeCommand
+{
+ StopNodeCommand? Stop;
+ StopTaskNodeCommand? StopTask;
+ NodeCommandAddSshKey? AddSshKey;
+ NodeCommandStopIfFree? StopIfFree;
+}
+
+enum NodeTaskState
+{
+ init,
+ setting_up,
+ running,
+}
+
+record NodeTasks
+{
+ Guid MachineId;
+ Guid TaskId;
+ NodeTaskState State = NodeTaskState.init;
+
+}
+
+enum NodeState
+{
+ init,
+ free,
+ setting_up,
+ rebooting,
+ ready,
+ busy,
+ done,
+ shutdown,
+ halt,
+}
+
+
+record Node : ITableEntity
+{
+ [DataMember(Name = "initialized_at")]
+ public DateTimeOffset? InitializedAt;
+ [DataMember(Name = "pool_name")]
+ public string PoolName;
+ [DataMember(Name = "pool_id")]
+ public Guid? PoolId;
+ [DataMember(Name = "machine_id")]
+ public Guid MachineId;
+ [DataMember(Name = "state")]
+ public NodeState State;
+ [DataMember(Name = "scaleset_id")]
+ public Guid? ScalesetId;
+ [DataMember(Name = "heartbeat")]
+ public DateTimeOffset Heartbeat;
+ [DataMember(Name = "version")]
+ public Version Version;
+ [DataMember(Name = "reimage_requested")]
+ public bool ReimageRequested;
+ [DataMember(Name = "delete_requested")]
+ public bool DeleteRequested;
+ [DataMember(Name = "debug_keep_node")]
+ public bool DebugKeepNode;
+
+ public string PartitionKey { get => PoolName; set => PoolName = value; }
+ public string RowKey { get => MachineId.ToString(); set => MachineId = Guid.Parse(value); }
+ public Azure.ETag ETag { get; set; }
+ DateTimeOffset? ITableEntity.Timestamp { get; set; }
+
+}
\ No newline at end of file