Initial production-ready Gemma 3 vLLM ROCm stack

Co-Authored-By: Oz <oz-agent@warp.dev>

scripts/uninstall.sh

@@ -0,0 +1,98 @@
+#!/usr/bin/env bash
+# Stops and removes the Gemma 3 vLLM stack. Optional --purge removes local model/cache data.
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
+PURGE=0
+
+log() {
+  printf '[uninstall] %s
+' "$*"
+}
+
+err() {
+  printf '[uninstall][error] %s
+' "$*" >&2
+}
+
+usage() {
+  cat <<'EOF'
+Usage: scripts/uninstall.sh [--purge]
+
+Options:
+  --purge    Remove local Hugging Face cache directory and ./models data in addition to containers/volumes.
+  -h, --help Show this help message.
+EOF
+}
+
+while [[ $# -gt 0 ]]; do
+  case "$1" in
+    --purge)
+      PURGE=1
+      ;;
+    -h|--help)
+      usage
+      exit 0
+      ;;
+    *)
+      err "Unknown argument: $1"
+      usage
+      exit 1
+      ;;
+  esac
+  shift
+done
+
+if [[ ! -f "${REPO_ROOT}/docker-compose.yml" ]]; then
+  err "docker-compose.yml not found at ${REPO_ROOT}."
+  exit 1
+fi
+
+ENV_FILE="${REPO_ROOT}/.env"
+if [[ ! -f "${ENV_FILE}" ]]; then
+  ENV_FILE="${REPO_ROOT}/.env.example"
+fi
+
+log "Stopping stack and removing containers, networks, and named/anonymous volumes."
+docker compose -f "${REPO_ROOT}/docker-compose.yml" --env-file "${ENV_FILE}" down -v || true
+
+if [[ ${PURGE} -eq 1 ]]; then
+  log "Purge requested. Removing local data directories used by this stack."
+
+  huggingface_cache_dir="$(grep -E '^HUGGINGFACE_CACHE_DIR=' "${ENV_FILE}" | tail -n1 | cut -d'=' -f2- || true)"
+  open_webui_data_dir="$(grep -E '^OPEN_WEBUI_DATA_DIR=' "${ENV_FILE}" | tail -n1 | cut -d'=' -f2- || true)"
+
+  if [[ -n "${huggingface_cache_dir}" ]]; then
+    # Expand potential variables such as ${USER}
+    evaluated_hf_dir="$(eval "printf '%s' "${huggingface_cache_dir}"")"
+    if [[ -d "${evaluated_hf_dir}" ]]; then
+      log "Removing Hugging Face cache directory: ${evaluated_hf_dir}"
+      rm -rf "${evaluated_hf_dir}"
+    else
+      log "Hugging Face cache directory not found: ${evaluated_hf_dir}"
+    fi
+  fi
+
+  if [[ -z "${open_webui_data_dir}" ]]; then
+    open_webui_data_dir="./frontend/data/open-webui"
+  fi
+
+  if [[ "${open_webui_data_dir}" == ./* ]]; then
+    open_webui_data_dir="${REPO_ROOT}/${open_webui_data_dir#./}"
+  fi
+
+  if [[ -d "${open_webui_data_dir}" ]]; then
+    log "Removing Open WebUI data directory: ${open_webui_data_dir}"
+    rm -rf "${open_webui_data_dir}"
+  fi
+
+  if [[ -d "${REPO_ROOT}/models" ]]; then
+    log "Removing local models directory: ${REPO_ROOT}/models"
+    rm -rf "${REPO_ROOT}/models"
+  fi
+else
+  log "Safe mode enabled (default). Local model/cache data was preserved."
+fi
+
+log "Uninstall complete."