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+30

control-plane/job-board/Cargo.toml

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··· 1 + [package] 2 + name = "job-board-orchestrator" 3 + version = "0.1.0" 4 + edition = "2024" 5 + 6 + [dependencies] 7 + # The core async runtime for Rust 8 + tokio = { version = "1", features = ["full"] } 9 + 10 + # WebSocket library that integrates with Tokio 11 + tokio-tungstenite = "0.23" 12 + 13 + # Utilities for working with async streams and sinks 14 + futures-util = { version = "0.3", default-features = false, features = ["sink", "std"] } 15 + 16 + # Framework for serializing and deserializing Rust data structures 17 + serde = { version = "1.0", features = ["derive"] } 18 + 19 + # A JSON implementation for Serde 20 + serde_json = "1.0" 21 + 22 + # For generating unique identifiers for jobs 23 + uuid = { version = "1.8", features = ["v4"] } 24 + 25 + # A framework for structured, event-based logging 26 + tracing = "0.1" 27 + 28 + # A subscriber for the tracing framework that formats and outputs logs 29 + tracing-subscriber = "0.3" 30 +

+11

control-plane/job-board/README.md

··· 0 0 0 0 0 0 0 0 0 0 0

··· 1 + # Job board 2 + 3 + This posts jobs for worker nodes to try to bid to recieve. So far in the development, the node with the most available resources wins. 4 + 5 + More coming soon. 6 + 7 + Here's an example response from a worker node in case you want to `wscat` to the job board to test responses: 8 + 9 + bash``` 10 + { "type": "BidResponse", "job_id": "PASTE_THE_JOB_ID_HERE", "available_cpu_cores": 999, "available_ram_mb": 99999, "available_storage_mb": 999999 } 11 + ```

+265

control-plane/job-board/src/main.rs

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··· 1 + use futures_util::{ 2 + stream::{SplitSink}, 3 + SinkExt, StreamExt, 4 + }; 5 + use serde::{Deserialize, Serialize}; 6 + use std::{ 7 + collections::{HashMap, VecDeque}, 8 + net::SocketAddr, 9 + sync::Arc, 10 + time::{Duration, Instant}, 11 + }; 12 + use tokio::{ 13 + net::{TcpListener, TcpStream}, 14 + sync::Mutex, 15 + }; 16 + use tokio_tungstenite::{ 17 + accept_async, 18 + tungstenite::{Message}, 19 + WebSocketStream, 20 + }; 21 + use tracing::{error, info, instrument}; 22 + use tracing_subscriber::FmtSubscriber; 23 + use uuid::Uuid; 24 + 25 + type PeerMap = Arc<Mutex<HashMap<SocketAddr, SplitSink<WebSocketStream<TcpStream>, Message>>>>; 26 + type JobQueue = Arc<Mutex<VecDeque<Job>>>; 27 + type Bids = Arc<Mutex<HashMap<SocketAddr, Bid>>>; 28 + 29 + #[derive(Debug, Serialize, Deserialize, Clone)] 30 + struct Job { 31 + id: String, 32 + payload: String, 33 + } 34 + 35 + #[derive(Debug, Serialize, Deserialize, Clone)] 36 + struct Bid { 37 + job_id: String, 38 + available_cpu_cores: u32, 39 + available_ram_mb: u32, 40 + available_storage_mb: u32, 41 + } 42 + 43 + impl Bid { 44 + fn score(&self) -> u64 { 45 + (self.available_cpu_cores as u64 * 1000) 46 + + self.available_ram_mb as u64 47 + + (self.available_storage_mb as u64 / 10) 48 + } 49 + } 50 + 51 + #[derive(Debug, Serialize, Deserialize)] 52 + #[serde(tag = "type")] 53 + enum ServerMessage { 54 + PingForBids { job_id: String }, 55 + AssignJob { job: Job }, 56 + Acknowledge, 57 + } 58 + 59 + #[derive(Debug, Serialize, Deserialize)] 60 + #[serde(tag = "type")] 61 + enum WorkerMessage { 62 + BidResponse(Bid), 63 + } 64 + 65 + #[tokio::main] 66 + async fn main() { 67 + FmtSubscriber::builder() 68 + .with_max_level(tracing::Level::INFO) 69 + .init(); 70 + 71 + let peers: PeerMap = Arc::new(Mutex::new(HashMap::new())); 72 + let job_queue: JobQueue = Arc::new(Mutex::new(VecDeque::new())); 73 + let bids: Bids = Arc::new(Mutex::new(HashMap::new())); 74 + 75 + { 76 + let mut queue = job_queue.lock().await; 77 + info!("Populating job queue with initial jobs..."); 78 + for i in 1..=5 { 79 + queue.push_back(Job { 80 + id: Uuid::new_v4().to_string(), 81 + payload: format!("This is job number {}", i), 82 + }); 83 + } 84 + info!("{} jobs added to the queue.", queue.len()); 85 + } 86 + 87 + let peers_clone = Arc::clone(&peers); 88 + let queue_clone = Arc::clone(&job_queue); 89 + let bids_clone = Arc::clone(&bids); 90 + tokio::spawn(async move { 91 + queue_monitor(queue_clone, peers_clone, bids_clone).await; 92 + }); 93 + 94 + let addr = "127.0.0.1:9001"; 95 + let listener = TcpListener::bind(&addr).await.expect("Failed to bind"); 96 + info!("Job Board listening on: {}", addr); 97 + 98 + while let Ok((stream, addr)) = listener.accept().await { 99 + info!("New worker connection from: {}", addr); 100 + tokio::spawn(handle_connection( 101 + Arc::clone(&peers), 102 + Arc::clone(&bids), 103 + stream, 104 + addr, 105 + )); 106 + } 107 + } 108 + 109 + #[instrument(skip(peers, bids, stream))] 110 + async fn handle_connection( 111 + peers: PeerMap, 112 + bids: Bids, 113 + stream: TcpStream, 114 + addr: SocketAddr, 115 + ) { 116 + let ws_stream = match accept_async(stream).await { 117 + Ok(ws) => ws, 118 + Err(e) => { 119 + error!("Error during WebSocket handshake: {}", e); 120 + return; 121 + } 122 + }; 123 + info!("WebSocket connection established: {}", addr); 124 + 125 + let (mut ws_sender, mut ws_receiver) = ws_stream.split(); 126 + 127 + let ack_msg = ServerMessage::Acknowledge; 128 + let ack_json = serde_json::to_string(&ack_msg).unwrap(); 129 + if ws_sender.send(Message::Text(ack_json)).await.is_err() { 130 + error!("Failed to send Acknowledge to {}", addr); 131 + return; 132 + } 133 + 134 + peers.lock().await.insert(addr, ws_sender); 135 + 136 + while let Some(msg) = ws_receiver.next().await { 137 + match msg { 138 + Ok(Message::Text(text)) => { 139 + match serde_json::from_str::<WorkerMessage>(&text) { 140 + Ok(WorkerMessage::BidResponse(bid)) => { 141 + info!("Received bid from {}: {:?}", addr, bid); 142 + bids.lock().await.insert(addr, bid); 143 + } 144 + Err(e) => { 145 + error!("Error deserializing message from {}: {}", addr, e); 146 + } 147 + } 148 + } 149 + Ok(Message::Close(_)) => { 150 + info!("Received Close message from {}", addr); 151 + break; 152 + } 153 + Err(tokio_tungstenite::tungstenite::Error::ConnectionClosed) => { 154 + info!("Connection to {} closed gracefully.", addr); 155 + break; 156 + } 157 + Err(e) => { 158 + error!("Error receiving message from {}: {}", addr, e); 159 + break; 160 + } 161 + _ => {} 162 + } 163 + } 164 + 165 + info!("Worker {} disconnected.", addr); 166 + peers.lock().await.remove(&addr); 167 + } 168 + 169 + #[instrument(skip(job_queue, peers, bids))] 170 + async fn queue_monitor(job_queue: JobQueue, peers: PeerMap, bids: Bids) { 171 + loop { 172 + tokio::time::sleep(Duration::from_secs(3)).await; 173 + 174 + let job = { 175 + let mut queue = job_queue.lock().await; 176 + queue.pop_front() 177 + }; 178 + 179 + if let Some(job) = job { 180 + info!("Found job {} in queue. Starting bidding process.", job.id); 181 + 182 + bids.lock().await.clear(); 183 + 184 + let ping_msg = ServerMessage::PingForBids { 185 + job_id: job.id.clone(), 186 + }; 187 + let ping_json = serde_json::to_string(&ping_msg).unwrap(); 188 + let mut disconnected_peers = Vec::new(); 189 + 190 + let expected_bids = { 191 + let mut peers_map = peers.lock().await; 192 + if peers_map.is_empty() { 193 + info!("No workers connected. Returning job to the front of the queue."); 194 + job_queue.lock().await.push_front(job); 195 + continue; 196 + } 197 + 198 + info!("Pinging {} connected workers for bids.", peers_map.len()); 199 + for (addr, sender) in peers_map.iter_mut() { 200 + if sender.send(Message::Text(ping_json.clone())).await.is_err() { 201 + error!("Failed to send ping to {}. Marking for removal.", addr); 202 + disconnected_peers.push(*addr); 203 + } 204 + } 205 + peers_map.len() - disconnected_peers.len() 206 + }; 207 + 208 + if !disconnected_peers.is_empty() { 209 + let mut peers_map = peers.lock().await; 210 + for addr in disconnected_peers { 211 + peers_map.remove(&addr); 212 + } 213 + } 214 + 215 + if expected_bids == 0 { 216 + info!("No active workers to ping. Returning job to the front of the queue."); 217 + job_queue.lock().await.push_front(job); 218 + continue; 219 + } 220 + 221 + info!("Waiting up to 3 seconds for {} workers to submit bids...", expected_bids); 222 + let bidding_deadline = Instant::now() + Duration::from_secs(3); 223 + 224 + while Instant::now() < bidding_deadline { 225 + let bids_received = bids.lock().await.len(); 226 + if bids_received >= expected_bids { 227 + info!("All {} expected bids received early.", expected_bids); 228 + break; 229 + } 230 + // tokio::time::sleep(Duration::from_millis(100)).await; 231 + } 232 + 233 + let winner = { 234 + let bids_map = bids.lock().await; 235 + info!("Evaluating {} bids received.", bids_map.len()); 236 + bids_map 237 + .iter() 238 + .max_by_key(|(_, bid)| bid.score()) 239 + .map(|(addr, _)| *addr) 240 + }; 241 + 242 + if let Some(winner_addr) = winner { 243 + info!( 244 + "Bidding complete. Winner is {}. Assigning job {}.", 245 + winner_addr, job.id 246 + ); 247 + let mut peers_map = peers.lock().await; 248 + if let Some(winner_sender) = peers_map.get_mut(&winner_addr) { 249 + let assign_msg = ServerMessage::AssignJob { job }; 250 + let assign_json = serde_json::to_string(&assign_msg).unwrap(); 251 + if winner_sender 252 + .send(Message::Text(assign_json)) 253 + .await 254 + .is_err() 255 + { 256 + error!("Failed to assign job to winner {}.", winner_addr); 257 + } 258 + } 259 + } else { 260 + info!("No bids received for job {}. Returning it to the front of the queue.", job.id); 261 + job_queue.lock().await.push_front(job); 262 + } 263 + } 264 + } 265 + }

+4

worker-plane/vm/.gitignore

··· 0 0 0 0

··· 1 + vmlinux* 2 + firecracker 3 + firecracker.log 4 + alpine-with-podman.ext4

+84

worker-plane/vm/README.md

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··· 1 + # The VM that contains a given pod 2 + 3 + ## Manual installation 4 + 5 + Add the firecracker binary to your system. 6 + 7 + Download a vmlinux* that has the virtio etc installed in itself and not as modules. For example, AWS seems to have one readymade, from the firecracker docs: 8 + 9 + ``` 10 + ARCH="$(uname -m)" 11 + release_url="https://github.com/firecracker-microvm/firecracker/releases" 12 + latest_version=$(basename $(curl -fsSLI -o /dev/null -w %{url_effective} ${release_url}/latest)) 13 + CI_VERSION=${latest_version%.*} 14 + latest_kernel_key=$(curl "http://spec.ccfc.min.s3.amazonaws.com/?prefix=firecracker-ci/$CI_VERSION/$ARCH/vmlinux-&list-type=2" \ 15 + | grep -oP "(?<=<Key>)(firecracker-ci/$CI_VERSION/$ARCH/vmlinux-[0-9]+\.[0-9]+\.[0-9]{1,3})(?=</Key>)" \ 16 + | sort -V | tail -1) 17 + 18 + # Download a linux kernel binary 19 + wget "https://s3.amazonaws.com/spec.ccfc.min/${latest_kernel_key}" 20 + ``` 21 + 22 + Add the following network rules to your system (not necessary at this stage of the project but good to have) 23 + 24 + ``` 25 + TAP_DEV="tap0" 26 + TAP_IP="172.16.0.1" 27 + MASK_SHORT="/30" 28 + HOST_IFACE=$(ip -j route list default | jq -r '.[0].dev') 29 + 30 + # Setup network interface on the host 31 + sudo ip link del "$TAP_DEV" 2> /dev/null || true 32 + sudo ip tuntap add dev "$TAP_DEV" mode tap 33 + sudo ip addr add "${TAP_IP}${MASK_SHORT}" dev "$TAP_DEV" 34 + sudo ip link set dev "$TAP_DEV" up 35 + 36 + # Enable IP forwarding and masquerading 37 + sudo sh -c "echo 1 > /proc/sys/net/ipv4/ip_forward" 38 + sudo iptables -P FORWARD ACCEPT 39 + sudo iptables -t nat -A POSTROUTING -o "$HOST_IFACE" -j MASQUERADE 40 + ``` 41 + 42 + Allow execution (chmod +x) on the create_alpine_rootfs.sh, then run it. 43 + 44 + `touch firecracker.log` 45 + 46 + Finally, to run the image: 47 + 48 + `sudo rm -f /tmp/firecracker.socket && sudo ./firecracker --api-sock /tmp/firecracker.socket --config-file firecracker-config.json` 49 + 50 + The username and password is root and root. Change that in the create_alpine_rootfs.sh file if you want. 51 + 52 + To exit the tty you'll have to `shutdown` or `reboot`. 53 + 54 + If you want to wire up the networking, complete the guest side of the host networking that we added on the host earlier: 55 + 56 + ``` 57 + ip addr add 172.16.0.2/30 dev eth0 58 + ip link set eth0 up 59 + ip route add default via 172.16.0.1 dev eth0 60 + echo "nameserver 8.8.8.8" > /etc/resolv.conf 61 + ``` 62 + ### TODO: prod machines that dynamically assign internal IPs on rootfs creation time 63 + 64 + Add to /etc/network/interfaces 65 + 66 + ``` 67 + auto lo 68 + iface lo inet loopback 69 + 70 + auto eth0 71 + iface eth0 inet static 72 + address 172.16.0.2 73 + netmask 255.255.255.252 74 + gateway 172.16.0.1 75 + ``` 76 + 77 + and at startup 78 + 79 + ``` 80 + rc-update add networking boot 81 + rc-service networking start 82 + ``` 83 + 84 + Hmm.. also should do something for ipv6 too.

+85

worker-plane/vm/create_alpine_rootfs.sh

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··· 1 + #!/bin/bash 2 + 3 + set -e 4 + 5 + ALPINE_VERSION="v3.20" 6 + ARCH=$(uname -m) 7 + ROOTFS_DIR="alpine-podman-rootfs" 8 + ROOTFS_FILE="alpine-with-podman.ext4" 9 + ROOTFS_SIZE_MB=2048 10 + 11 + echo "--- Finding and fetching apk-tools-static for ${ARCH} ---" 12 + # Map uname arch to Alpine's arch naming 13 + case ${ARCH} in 14 + x86_64) ALPINE_ARCH="x86_64" ;; 15 + aarch64) ALPINE_ARCH="aarch64" ;; 16 + *) echo "Unsupported architecture: ${ARCH}"; exit 1 ;; 17 + esac 18 + 19 + REPO_URL="https://dl-cdn.alpinelinux.org/alpine/${ALPINE_VERSION}/main/${ALPINE_ARCH}" 20 + 21 + APK_TOOLS_PKG=$(curl -sL "${REPO_URL}/APKINDEX.tar.gz" | tar -xz -O APKINDEX | grep -F 'P:apk-tools-static' -A1 | grep -F 'V:' | cut -d: -f2 | xargs -I{} echo "apk-tools-static-{}.apk") 22 + APK_TOOLS_URL="${REPO_URL}/${APK_TOOLS_PKG}" 23 + 24 + echo "Found package: ${APK_TOOLS_PKG}" 25 + echo "Downloading from: ${APK_TOOLS_URL}" 26 + 27 + curl -sL "${APK_TOOLS_URL}" | tar -xz -C . sbin/apk.static 28 + mv sbin/apk.static . 29 + rmdir sbin 30 + chmod +x apk.static 31 + 32 + echo "Successfully fetched ./apk.static" 33 + 34 + echo "--- Ensuring host has 'mkfs.ext4' (e2fsprogs) ---" 35 + if ! command -v mkfs.ext4 &> /dev/null; then 36 + if command -v apt-get &> /dev/null; then 37 + sudo apt-get update && sudo apt-get install -y e2fsprogs 38 + elif command -v dnf &> /dev/null || command -v yum &> /dev/null; then 39 + sudo yum install -y e2fsprogs 40 + else 41 + echo "Error: mkfs.ext4 not found. Please install 'e2fsprogs' manually." 42 + exit 1 43 + fi 44 + fi 45 + 46 + echo "--- Bootstrapping Alpine ${ALPINE_VERSION} with Podman ---" 47 + sudo rm -rf "${ROOTFS_DIR}" 48 + mkdir -p "${ROOTFS_DIR}" 49 + 50 + sudo ./apk.static \ 51 + -X "https://dl-cdn.alpinelinux.org/alpine/${ALPINE_VERSION}/main" \ 52 + -X "https://dl-cdn.alpinelinux.org/alpine/${ALPINE_VERSION}/community" \ 53 + -U --allow-untrusted --root "${ROOTFS_DIR}" \ 54 + --initdb add alpine-base openrc podman util-linux 55 + 56 + echo "--- Configuring the rootfs ---" 57 + echo "root:root" | sudo chroot "${ROOTFS_DIR}" chpasswd 58 + 59 + sudo chroot "${ROOTFS_DIR}" rc-update add cgroups default 60 + 61 + cat << EOF | sudo tee "${ROOTFS_DIR}/etc/fstab" > /dev/null 62 + proc /proc proc defaults 0 0 63 + sysfs /sys sysfs defaults 0 0 64 + EOF 65 + 66 + echo 'ttyS0::respawn:/sbin/agetty -L 115200 ttyS0 vt100' | sudo tee -a "${ROOTFS_DIR}/etc/inittab" > /dev/null 67 + 68 + echo "--- Creating ${ROOTFS_SIZE_MB}MB ext4 image: ${ROOTFS_FILE} ---" 69 + rm -f "${ROOTFS_FILE}" 70 + dd if=/dev/zero of="${ROOTFS_FILE}" bs=1M count=${ROOTFS_SIZE_MB} 71 + mkfs.ext4 "${ROOTFS_FILE}" 72 + 73 + echo "--- Mounting image and copying rootfs data ---" 74 + MOUNT_DIR=$(mktemp -d) 75 + sudo mount -o loop "${ROOTFS_FILE}" "${MOUNT_DIR}" 76 + (cd "${ROOTFS_DIR}" && sudo tar -cf - .) | (cd "${MOUNT_DIR}" && sudo tar -xf -) 77 + 78 + echo "--- Cleaning up ---" 79 + sudo umount "${MOUNT_DIR}" 80 + rm -rf "${MOUNT_DIR}" 81 + sudo rm -rf "${ROOTFS_DIR}" 82 + rm ./apk.static 83 + 84 + echo "Success! Rootfs created at ./${ROOTFS_FILE}" 85 +

+32

worker-plane/vm/firecracker-config.json

··· 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

··· 1 + { 2 + "boot-source": { 3 + "kernel_image_path": "./vmlinux-6.1.141", 4 + "boot_args": "console=ttyS0 reboot=k panic=1 pci=off root=/dev/vda rw init=/sbin/init" 5 + }, 6 + "drives": [ 7 + { 8 + "drive_id": "rootfs", 9 + "path_on_host": "./alpine-with-podman.ext4", 10 + "is_root_device": true, 11 + "is_read_only": false 12 + } 13 + ], 14 + "machine-config": { 15 + "vcpu_count": 2, 16 + "mem_size_mib": 1024, 17 + "smt": false 18 + }, 19 + "network-interfaces": [ 20 + { 21 + "iface_id": "net1", 22 + "guest_mac": "06:00:AC:10:00:02", 23 + "host_dev_name": "tap0" 24 + } 25 + ], 26 + "logger": { 27 + "log_path": "./firecracker.log", 28 + "level": "Debug", 29 + "show_level": true, 30 + "show_log_origin": true 31 + } 32 + }