Add shared OTLP telemetry and propagate command traces across agents

scripts/tests/test_openwrt_uci.sh

@@ -0,0 +1,69 @@
+#!/bin/sh
+# Host-side contract test; OpenWrt's UCI and procd helpers are stubbed.
+set -eu
+ROOT="$(CDPATH='' cd -- "$(dirname -- "$0")/../.." && pwd)"
+TMP="$(mktemp -d)"
+trap 'rm -rf "$TMP"' EXIT HUP INT TERM
+
+config_load() { [ "$1" = wakey ]; loaded=1; return "$load_status"; }
+config_get() {
+    [ "$2" = main ]
+    case "$3" in
+        otlp_authorization) authorization=$test_authorization ;;
+        log_filter) log_filter=${test_log_filter:-$4} ;;
+        *) return 1 ;;
+    esac
+}
+procd_open_instance() { opened=1; }
+procd_close_instance() { :; }
+procd_set_param() {
+    if [ "$1" = env ]; then
+        [ "$#" -eq 2 ]
+        received_filter=$2
+    fi
+}
+procd_append_param() {
+    case "$1" in
+        env) [ "$#" -eq 2 ]; received_auth=$2 ;;
+        file) tracked_file=$2 ;;
+    esac
+}
+. "$ROOT/scripts/init/openwrt/wakey"
+UCI_CONFIG="$TMP/wakey"
+touch "$UCI_CONFIG"
+load_status=0
+loaded=0
+opened=0
+test_authorization='Basic dGVzdDp0ZXN0=='
+test_log_filter='wakey_agent=debug,opentelemetry=warn'
+start_service
+[ "$loaded" -eq 1 ]
+[ "$opened" -eq 1 ]
+[ "$received_auth" = "WAKEY_OTLP_AUTHORIZATION=$test_authorization" ]
+[ "$received_filter" = "RUST_LOG=$test_log_filter" ]
+[ "$tracked_file" = "$UCI_CONFIG" ]
+
+# Missing options retain the default filter and do not export empty credentials.
+test_authorization=''
+test_log_filter=''
+received_auth=''
+start_service
+[ "$received_auth" = '' ]
+[ "$received_filter" = 'RUST_LOG=info' ]
+
+load_status=1
+opened=0
+if start_service; then
+    echo 'failed UCI load was accepted' >&2
+    exit 1
+fi
+[ "$opened" -eq 0 ]
+
+UCI_CONFIG="$TMP/absent"
+loaded=0
+tracked_file=''
+start_service
+[ "$loaded" -eq 0 ]
+[ "$tracked_file" = '' ]
+[ "$received_filter" = 'RUST_LOG=info' ]
+echo 'PASS: OpenWrt UCI environment forwarding and optional configuration'