Add devcontainer configuration for Vast.ai serverless Ollama template

* Add nltk requirement for openai worker

* pin version

.devcontainer/devcontainer.json

@@ -0,0 +1,37 @@
+// .devcontainer/devcontainer.json
+// Dev container for the Vast.ai serverless Ollama template.
+// Includes Docker-in-Docker so you can build and test images from inside the container.
+{
+  "name": "vast.ai-serverless-ollama",
+  "image": "mcr.microsoft.com/devcontainers/base:trixie",
+  "features": {
+    "ghcr.io/devcontainers/features/python:1": {
+      "installTools": true,
+      "version": "3.12"
+    },
+    "ghcr.io/devcontainers/features/docker-in-docker:3.0.0": {
+      "moby": false,
+      "version": "latest",
+      "installDockerBuildx": true,
+      "dockerDashComposeVersion": "v2"
+    }
+  },
+  "runArgs": ["--privileged"],
+  "containerEnv": {
+    "DOCKER_BUILDKIT": "1"
+  },
+  "postCreateCommand": "python3 -m pip install --user --upgrade pip && python3 -m pip install --user -r requirements.txt pyyaml",
+  "customizations": {
+    "vscode": {
+      "extensions": [
+        "ms-python.python",
+        "ms-azuretools.vscode-docker"
+      ],
+      "settings": {
+        "python.defaultInterpreterPath": "/usr/bin/python3",
+        "terminal.integrated.defaultProfile.linux": "bash",
+        "docker.showStartPage": false
+      }
+    }
+  }
+}

requirements.txt

@@ -1,13 +1,2 @@
-aiohttp==3.10.1
-aiodns~=3.6.0
-pycares~=4.11.0
-anyio~=4.4
-lib~=4.0
-nltk~=3.9
-psutil~=6.0
-pycryptodome~=3.20
-Requests~=2.32
-transformers~=4.52
-utils==1.0.*
-hf_transfer>=0.1.9
 vastai-sdk>=0.3.0
+nltk==3.9.4 

start_server.sh

@@ -2,10 +2,17 @@
 
 set -e -o pipefail
 
+# Check for force update flag
+FORCE_UPDATE=false
+if [ -f "/.force_update" ]; then
+    echo "Force update flag detected at /.force_update"
+    FORCE_UPDATE=true
+fi
+
 WORKSPACE_DIR="${WORKSPACE_DIR:-/workspace}"
 
 SERVER_DIR="$WORKSPACE_DIR/vast-pyworker"
-ENV_PATH="$WORKSPACE_DIR/worker-env"
+ENV_PATH="${ENV_PATH:-$WORKSPACE_DIR/worker-env}"
 DEBUG_LOG="$WORKSPACE_DIR/debug.log"
 PYWORKER_LOG="$WORKSPACE_DIR/pyworker.log"
 
@@ -46,6 +53,42 @@ JSON
     exit 1
 }
 
+function install_vastai_sdk() {
+    local uv_flags=()
+    if [ "${USE_SYSTEM_PYTHON:-}" = "true" ]; then
+        uv_flags+=(--system --break-system-packages)
+    fi
+    if [ "$FORCE_UPDATE" = true ]; then
+        uv_flags+=(--force-reinstall)
+        echo "Force reinstalling vastai"
+    fi
+
+    # If SDK_BRANCH is set, install vastai from the vast-cli repo at that branch/tag/commit.
+    if [ -n "${SDK_BRANCH:-}" ]; then
+        if [ -n "${SDK_VERSION:-}" ]; then
+            echo "WARNING: Both SDK_BRANCH and SDK_VERSION are set; using SDK_BRANCH=${SDK_BRANCH}"
+        fi
+        echo "Installing vastai from https://github.com/vast-ai/vast-cli/ @ ${SDK_BRANCH}"
+        if ! uv pip install "${uv_flags[@]}" "vastai @ git+https://github.com/vast-ai/vast-cli.git@${SDK_BRANCH}"; then
+            report_error_and_exit "Failed to install vastai from vast-ai/vast-cli@${SDK_BRANCH}"
+        fi
+        return 0
+    fi
+
+    if [ -n "${SDK_VERSION:-}" ]; then
+        echo "Installing vastai version ${SDK_VERSION}"
+        if ! uv pip install "${uv_flags[@]}" "vastai==${SDK_VERSION}"; then
+            report_error_and_exit "Failed to install vastai==${SDK_VERSION}"
+        fi
+        return 0
+    fi
+
+    echo "Installing default vastai"
+    if ! uv pip install "${uv_flags[@]}" vastai; then
+        report_error_and_exit "Failed to install vastai"
+    fi
+}
+
 [ -n "$BACKEND" ] && [ -z "$HF_TOKEN" ] && report_error_and_exit "HF_TOKEN must be set when BACKEND is set!"
 [ -z "$CONTAINER_ID" ] && report_error_and_exit "CONTAINER_ID must be set!"
 [ "$BACKEND" = "comfyui" ] && [ -z "$COMFY_MODEL" ] && report_error_and_exit "For comfyui backends, COMFY_MODEL must be set!"
@@ -63,7 +106,8 @@ echo_var DEBUG_LOG
 echo_var PYWORKER_LOG
 echo_var MODEL_LOG
 
-if [ -e "$MODEL_LOG" ]; then
+ROTATE_MODEL_LOG="${ROTATE_MODEL_LOG:-false}"
+if [ "$ROTATE_MODEL_LOG" = "true" ] && [ -e "$MODEL_LOG" ]; then
     echo "Rotating model log at $MODEL_LOG to $MODEL_LOG.old"
     if ! cat "$MODEL_LOG" >> "$MODEL_LOG.old"; then
         report_error_and_exit "Failed to rotate model log"
@@ -84,8 +128,21 @@ if ! grep -q "VAST" /etc/environment; then
     fi
 fi
 
-if [ ! -d "$ENV_PATH" ]
-then
+if [ "${USE_SYSTEM_PYTHON:-}" = "true" ]; then
+    echo "Using system Python: $(which python3)"
+    if ! which uv > /dev/null 2>&1; then
+        if ! curl -LsSf https://astral.sh/uv/install.sh | sh; then
+            report_error_and_exit "Failed to install uv package manager"
+        fi
+        if [[ -f ~/.local/bin/env ]]; then
+            if ! source ~/.local/bin/env; then
+                report_error_and_exit "Failed to source uv environment"
+            fi
+        fi
+    fi
+    install_vastai_sdk
+    touch ~/.no_auto_tmux
+elif [ ! -d "$ENV_PATH" ]; then
     echo "setting up venv"
     if ! which uv; then
         if ! curl -LsSf https://astral.sh/uv/install.sh | sh; then
@@ -104,10 +161,27 @@ then
         if ! git clone "${PYWORKER_REPO:-https://github.com/vast-ai/pyworker}" "$SERVER_DIR"; then
             report_error_and_exit "Failed to clone pyworker repository"
         fi
+    elif [ "$FORCE_UPDATE" = true ]; then
+        echo "Force updating pyworker repository"
+        if ! (cd "$SERVER_DIR" && git fetch --all); then
+            report_error_and_exit "Failed to fetch pyworker repository updates"
+        fi
     fi
     if [[ -n ${PYWORKER_REF:-} ]]; then
-        if ! (cd "$SERVER_DIR" && git checkout "$PYWORKER_REF"); then
-            report_error_and_exit "Failed to checkout pyworker reference: $PYWORKER_REF"
+        if [ "$FORCE_UPDATE" = true ]; then
+            echo "Force updating to pyworker reference: $PYWORKER_REF"
+            if ! (cd "$SERVER_DIR" && git checkout "$PYWORKER_REF" && git pull); then
+                report_error_and_exit "Failed to force update pyworker reference: $PYWORKER_REF"
+            fi
+        else
+            if ! (cd "$SERVER_DIR" && git checkout "$PYWORKER_REF"); then
+                report_error_and_exit "Failed to checkout pyworker reference: $PYWORKER_REF"
+            fi
+        fi
+    elif [ "$FORCE_UPDATE" = true ]; then
+        echo "Force updating pyworker to latest"
+        if ! (cd "$SERVER_DIR" && git pull); then
+            report_error_and_exit "Failed to pull latest pyworker changes"
         fi
     fi
 
@@ -123,6 +197,8 @@ then
         report_error_and_exit "Failed to install Python requirements"
     fi
 
+    install_vastai_sdk
+
     if ! touch ~/.no_auto_tmux; then
         report_error_and_exit "Failed to create ~/.no_auto_tmux"
     fi
@@ -132,11 +208,44 @@ else
             report_error_and_exit "Failed to source uv environment"
         fi
     fi
-    if ! source "$WORKSPACE_DIR/worker-env/bin/activate"; then
+    if ! source "$ENV_PATH/bin/activate"; then
         report_error_and_exit "Failed to activate existing virtual environment"
     fi
     echo "environment activated"
     echo "venv: $VIRTUAL_ENV"
+
+    # Handle force update for existing environment
+    if [ "$FORCE_UPDATE" = true ]; then
+        echo "Performing force update on existing environment"
+
+        if [[ -d $SERVER_DIR ]]; then
+            echo "Force updating pyworker repository"
+            if ! (cd "$SERVER_DIR" && git fetch --all); then
+                report_error_and_exit "Failed to fetch pyworker repository updates"
+            fi
+
+            if [[ -n ${PYWORKER_REF:-} ]]; then
+                echo "Force updating to pyworker reference: $PYWORKER_REF"
+                if ! (cd "$SERVER_DIR" && git checkout "$PYWORKER_REF" && git pull); then
+                    report_error_and_exit "Failed to force update pyworker reference: $PYWORKER_REF"
+                fi
+            else
+                echo "Force updating pyworker to latest"
+                if ! (cd "$SERVER_DIR" && git pull); then
+                    report_error_and_exit "Failed to pull latest pyworker changes"
+                fi
+            fi
+        fi
+
+        install_vastai_sdk
+    fi
+fi
+
+# Remove force update flag after successful update
+if [ "$FORCE_UPDATE" = true ]; then
+    echo "Removing force update flag"
+    rm -f "/.force_update"
+    echo "Force update completed successfully"
 fi
 
 if [ "$USE_SSL" = true ]; then
@@ -174,16 +283,51 @@ EOF
         report_error_and_exit "Failed to generate SSL certificate request"
     fi
 
-    if ! curl --header 'Content-Type: application/octet-stream' \
-        --data-binary @/etc/instance.csr \
-        -X \
-        POST "https://console.vast.ai/api/v0/sign_cert/?instance_id=$CONTAINER_ID" > /etc/instance.crt; then
-        report_error_and_exit "Failed to sign SSL certificate"
-    fi
+    max_retries=5
+    retry_delay=2
+    for attempt in $(seq 1 "$max_retries"); do
+        http_code=$(curl -sS -o /etc/instance.crt -w '%{http_code}' \
+            --header 'Content-Type: application/octet-stream' \
+            --data-binary @/etc/instance.csr \
+            -X POST "https://console.vast.ai/api/v0/sign_cert/?instance_id=$CONTAINER_ID")
+        if [ "$http_code" -ge 200 ] && [ "$http_code" -lt 300 ]; then
+            break
+        fi
+        echo "SSL cert signing attempt $attempt/$max_retries failed (HTTP $http_code)"
+        if [ "$attempt" -eq "$max_retries" ]; then
+            report_error_and_exit "Failed to sign SSL certificate after $max_retries attempts (HTTP $http_code)"
+        fi
+        sleep "$retry_delay"
+        retry_delay=$((retry_delay * 2))
+    done
 fi
 
 export REPORT_ADDR WORKER_PORT USE_SSL UNSECURED
 
+# ─── SDK Deployment Mode ───────────────────────────────────────────────
+if [ "$IS_DEPLOYMENT" = "true" ]; then
+    echo "=== SDK Deployment Mode ==="
+    echo "DEPLOYMENT_ID: $DEPLOYMENT_ID"
+
+    DEPLOY_DIR="/workspace/deployment"
+    mkdir -p "$DEPLOY_DIR"
+
+    VAST_API_BASE="${VAST_API_BASE:-https://console.vast.ai}"
+
+    # Download deployment code, retrying until the blob is available on S3.
+    # The s3_key exists in the DB as soon as the deployment is created, but the
+    # actual upload may still be in flight from the client side.
+
+    # Install SDK (uses the install_vastai_sdk function which supports SDK_BRANCH/SDK_VERSION)
+    install_vastai_sdk
+    # Run deployment in serve mode
+    export VAST_DEPLOYMENT_MODE=serve
+    echo "Starting deployment: python3 $DEPLOY_DIR/deployment.py"
+    serve-vast-deployment
+    exit $?
+fi
+# ─── End SDK Deployment Mode ───────────────────────────────────────────
+
 if ! cd "$SERVER_DIR"; then
     report_error_and_exit "Failed to cd into SERVER_DIR: $SERVER_DIR"
 fi
@@ -195,19 +339,19 @@ set +e
 PY_STATUS=1
 
 if [ -f "$SERVER_DIR/worker.py" ]; then
-    echo "trying worker.py"
+    echo "Running worker.py"
     python3 -m "worker" |& tee -a "$PYWORKER_LOG"
     PY_STATUS=${PIPESTATUS[0]}
 fi
 
 if [ "${PY_STATUS}" -ne 0 ] && [ -f "$SERVER_DIR/workers/$BACKEND/worker.py" ]; then
-    echo "trying workers.${BACKEND}.worker"
+    echo "Running workers.${BACKEND}.worker"
     python3 -m "workers.${BACKEND}.worker" |& tee -a "$PYWORKER_LOG"
     PY_STATUS=${PIPESTATUS[0]}
 fi
 
 if [ "${PY_STATUS}" -ne 0 ] && [ -f "$SERVER_DIR/workers/$BACKEND/server.py" ]; then
-    echo "trying workers.${BACKEND}.server"
+    echo "Running workers.${BACKEND}.server"
     python3 -m "workers.${BACKEND}.server" |& tee -a "$PYWORKER_LOG"
     PY_STATUS=${PIPESTATUS[0]}
 fi
@@ -221,4 +365,4 @@ if [ "${PY_STATUS}" -ne 0 ]; then
     report_error_and_exit "PyWorker exited with status ${PY_STATUS}"
 fi
 
-echo "launching PyWorker server done"
+echo "PyWorker bootstrap complete"

workers/openai/worker.py

@@ -7,12 +7,15 @@ from vastai import Worker, WorkerConfig, HandlerConfig, LogActionConfig, Benchma
 # vLLM model configuration
 MODEL_SERVER_URL           = 'http://127.0.0.1'
 MODEL_SERVER_PORT          = 18000
-MODEL_LOG_FILE             = '/var/log/portal/vllm.log'
+MODEL_LOG_FILE             = '/var/log/onstart.log'
 MODEL_HEALTHCHECK_ENDPOINT = "/health"
 
 # vLLM-specific log messages
 MODEL_LOAD_LOG_MSG = [
     "Application startup complete.",
+    "llama runner started in",
+    "Server listening on",
+    "msg=\"Listening on",
 ]
 
 MODEL_ERROR_LOG_MSGS = [
@@ -60,20 +63,20 @@ worker_config = WorkerConfig(
             route="/v1/completions",
             workload_calculator= lambda data: data.get("max_tokens", 0),
             allow_parallel_requests=True,
-            max_queue_time=60.0,
             request_parser=request_parser,
+            max_queue_time=600.0,
             benchmark_config=BenchmarkConfig(
                 generator=completions_benchmark_generator,
-                concurrency=100,
-                runs=2
+                concurrency=10,
+                runs=3
             )
         ),
         HandlerConfig(
             route="/v1/chat/completions",
             workload_calculator= lambda data: data.get("max_tokens", 0),
             allow_parallel_requests=True,
-            max_queue_time=60.0,
-            request_parser=request_parser
+            request_parser=request_parser,
+            max_queue_time=600.0,
         )
     ],
     log_action_config=LogActionConfig(

workers/tgi/worker.py

@@ -35,7 +35,7 @@ def benchmark_generator() -> dict:
     benchmark_data = {
         "inputs": prompt,
         "parameters": {
-            "max_new_tokens": 128,
+            "max_new_tokens": 500,
             "temperature": 0.7,
             "return_full_text": False
         }
@@ -52,17 +52,18 @@ worker_config = WorkerConfig(
         HandlerConfig(
             route="/generate",
             allow_parallel_requests=True,
-            max_queue_time=60.0,
+            max_queue_time=600.0,
             benchmark_config=BenchmarkConfig(
                 generator=benchmark_generator,
-                concurrency=50
+                concurrency=10,
+                runs=3
             ),
             workload_calculator= lambda x: x["parameters"]["max_new_tokens"]
         ),
         HandlerConfig(
             route="/generate_stream",
             allow_parallel_requests=True,
-            max_queue_time=60.0,
+            max_queue_time=600.0,
             workload_calculator= lambda x: x["parameters"]["max_new_tokens"]
         )
     ],