enable tracing and reduce files being copied

Caddyfile

@@ -1,5 +1,15 @@
+{
+	admin off
+	auto_https off
+	persist_config off
+}
+
 :80
 
+@tracingEnabled expression {env.OTEL_EXPORTER_OTLP_TRACES_ENDPOINT} != ""
 root * /usr/share/caddy
 file_server
 try_files {path} /
+handle @tracingEnabled {
+	tracing
+}

Dockerfile

@@ -2,7 +2,10 @@ FROM node:16.14.2 AS ci-stage
 WORKDIR /app
 COPY package*.json ./
 RUN --mount=type=cache,target=/root/.npm npm ci
-COPY ./ .
+COPY ./src/  ./src/
+COPY ./.storybook/  ./.storybook/
+COPY *.js *.json ./
+RUN ls ./
 
 FROM ci-stage AS build-stage
 RUN npm run build