env for failures

Dockers/puppeteer-healthcheck/Dockerfile

@@ -23,6 +23,7 @@ ENV TEST_URL="https://www.google.com"
 ENV API_KEY="Q7Sd#hhFkyHy*T"
 ENV TARGET_CONTAINER="puppeteer-api"
 ENV CHECK_INTERVAL=60
+ENV MAX_CONSECUTIVE_FAILURES=3
 
 # Create docker group and user with docker group access
 RUN groupadd -g 999 docker || true && \