Docker Log Monitoring with LogMonitor
>_ why docker apps need log monitoring
Docker containers are ephemeral: when a container stops or restarts, its logs disappear. Relying on docker logs commands is not scalable across multiple containers and hosts. LogMonitor gives you persistent, real-time log streaming from every container so you never lose visibility into your containerized applications.
>_ how logmonitor works with docker
Integrate the LogMonitor HTTP API into your containerized application. Send an HTTP POST to https://api.logmonitor.io/v1/logs with your log data. The API returns 202 Accepted on success and works with any language or framework running inside a container. Alternatively, use the logmonitor-js or logmonitor_flutter SDK if your app uses those runtimes.
>_ quick start
import requestsimport osimport timeLOGMONITOR_URL = "https://api.logmonitor.io/v1/logs"API_KEY = os.environ["LOGMONITOR_API_KEY"]def send_log(level, message): requests.post( LOGMONITOR_URL, headers={ "X-Logmonitor-Api-Key": API_KEY, "Content-Type": "application/json", }, json=[{"level": level, "message": message, "clientTimestamp": int(time.time())}], ) # Returns 202 Accepted on successsend_log("info", "Container started")send_log("error", "Database connection failed")>_ what you can monitor
- $Container startup and shutdown events
- $Application errors inside containers
- $Health check failures and restarts
- $Inter-service communication errors
- $Resource exhaustion warnings (memory, CPU)
- $Configuration and environment issues
>_ frequently asked questions
No Dockerfile changes are required. You integrate LogMonitor at the application level by adding HTTP API calls or the SDK to your code. Just pass your API key as an environment variable.
Yes. Use the same app ID for containers belonging to the same service, or different app IDs to separate them. All logs appear in a single Live Console where you can filter by app, level, or metadata.
Logs sent to LogMonitor are persisted in the cloud. Even if a container crashes and restarts, all previously sent logs remain available in your dashboard for investigation.
Yes. LogMonitor works with any Docker deployment method including Docker Compose, Docker Swarm, and standalone containers. Just ensure your containers can reach the LogMonitor API endpoint.
Yes. You can run a lightweight sidecar container that reads your application's stdout/stderr and forwards it to the LogMonitor HTTP API, though direct integration in your application code is simpler.