docker/edge/dispatcher.sh

@@ -1,12 +1,164 @@
 #!/usr/bin/env bash
-# dispatcher.sh — Edge task dispatcher placeholder
+# dispatcher.sh — Edge task dispatcher
 #
-# TODO: Implement task polling and runner launching (#45)
-# Currently a no-op loop for future expansion.
+# Polls the ops repo for approved actions and launches task-runner containers.
+# Part of #24.
+#
+# Action JSON schema:
+# {
+#   "id": "publish-skill-20260328",
+#   "formula": "clawhub-publish",
+#   "secrets": ["CLAWHUB_TOKEN"],
+#   "tools": ["clawhub"],
+#   "context": "SKILL.md bumped to 0.3.0",
+#   "model": "sonnet"
+# }
 
 set -euo pipefail
 
-while true; do
-  # Placeholder: no-op loop, no logic yet
+# Resolve script root (parent of lib/)
+SCRIPT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+
+# Source shared environment
+source "${SCRIPT_ROOT}/../lib/env.sh"
+
+# Load vault secrets after env.sh (env.sh unsets them for agent security)
+# Vault secrets must be available to the dispatcher
+if [ -f "$FACTORY_ROOT/.env.vault.enc" ] && command -v sops &>/dev/null; then
+  set -a
+  eval "$(sops -d --output-type dotenv "$FACTORY_ROOT/.env.vault.enc" 2>/dev/null)" \
+    || echo "Warning: failed to decrypt .env.vault.enc — vault secrets not loaded" >&2
+  set +a
+elif [ -f "$FACTORY_ROOT/.env.vault" ]; then
+  set -a
+  # shellcheck source=/dev/null
+  source "$FACTORY_ROOT/.env.vault"
+  set +a
+fi
+
+# Ops repo location (vault/actions directory)
+OPS_REPO_ROOT="${OPS_REPO_ROOT:-/home/debian/disinto-ops}"
+VAULT_ACTIONS_DIR="${OPS_REPO_ROOT}/vault/actions"
+
+# Log function
+log() {
+  printf '[%s] %s\n' "$(date -u '+%Y-%m-%d %H:%M:%S UTC')" "$*"
+}
+
+# Clone or pull the ops repo
+ensure_ops_repo() {
+  if [ ! -d "${OPS_REPO_ROOT}/.git" ]; then
+    log "Cloning ops repo from ${FORGE_URL}/${FORGE_OPS_REPO}..."
+    git clone "${FORGE_URL}/${FORGE_OPS_REPO}" "${OPS_REPO_ROOT}"
+  else
+    log "Pulling latest ops repo changes..."
+    (cd "${OPS_REPO_ROOT}" && git pull --rebase)
+  fi
+}
+
+# Check if an action has already been completed
+is_action_completed() {
+  local id="$1"
+  [ -f "${VAULT_ACTIONS_DIR}/${id}.result.json" ]
+}
+
+# Launch a runner for the given action ID
+launch_runner() {
+  local id="$1"
+  log "Launching runner for action: ${id}"
+
+  # Read action config
+  local action_file="${VAULT_ACTIONS_DIR}/${id}.json"
+  if [ ! -f "$action_file" ]; then
+    log "ERROR: Action file not found: ${action_file}"
+    return 1
+  fi
+
+  # Extract formula from action JSON
+  local formula
+  formula=$(jq -r '.formula // empty' "$action_file")
+  if [ -z "$formula" ]; then
+    log "ERROR: Action ${id} missing 'formula' field"
+    return 1
+  fi
+
+  # Extract secrets (array for safe handling)
+  local -a secrets=()
+  while IFS= read -r secret; do
+    [ -n "$secret" ] && secrets+=("$secret")
+  done < <(jq -r '.secrets[]? // empty' "$action_file" 2>/dev/null)
+
+  # Build command array (safe from shell injection)
+  local -a cmd=(docker compose run --rm runner)
+
+  # Add environment variables BEFORE service name
+  for secret in "${secrets[@]+"${secrets[@]}"}"; do
+    cmd+=(-e "${secret}")  # Pass actual value to container (from env)
+  done
+
+  # Add formula and id as arguments (after service name)
+  cmd+=("$formula" "$id")
+
+  # Log command skeleton (hide all -e flags for security)
+  local -a log_cmd=()
+  local skip_next=0
+  for arg in "${cmd[@]}"; do
+    if [[ $skip_next -eq 1 ]]; then
+      skip_next=0
+      continue
+    fi
+    if [[ "$arg" == "-e" ]]; then
+      log_cmd+=("$arg" "<redacted>")
+      skip_next=1
+    else
+      log_cmd+=("$arg")
+    fi
+  done
+  log "Running: ${log_cmd[*]}"
+
+  # Execute with array expansion (safe from shell injection)
+  "${cmd[@]}"
+
+  log "Runner completed for action: ${id}"
+}
+
+# Main dispatcher loop
+main() {
+  log "Starting dispatcher..."
+  log "Polling ops repo: ${VAULT_ACTIONS_DIR}"
+
+  while true; do
+    # Refresh ops repo at the start of each poll cycle
+    ensure_ops_repo
+
+    # Check if actions directory exists
+    if [ ! -d "${VAULT_ACTIONS_DIR}" ]; then
+      log "Actions directory not found: ${VAULT_ACTIONS_DIR}"
       sleep 60
-done
+      continue
+    fi
+
+    # Process each action file
+    for action_file in "${VAULT_ACTIONS_DIR}"/*.json; do
+      # Handle case where no .json files exist
+      [ -e "$action_file" ] || continue
+
+      local id
+      id=$(basename "$action_file" .json)
+
+      # Skip if already completed
+      if is_action_completed "$id"; then
+        continue
+      fi
+
+      # Launch runner for this action
+      launch_runner "$id"
+    done
+
+    # Wait before next poll
+    sleep 60
+  done
+}
+
+# Run main
+main "$@"