Dynatrace offers full-featured Docker monitoring, giving you all the same monitoring functionality for Dockerized applications that is available for non-containerized applications. Dynatrace provides you with a complete picture of your Dockerized environments. Dynatrace provides container-centric monitoring perspectives on Docker images, services, and hosts.
Get started with Docker
Dynatrace seamlessly integrates with existing Docker environments and automatically monitors your containerized applications and services. Dynatrace hooks into containers and provides code for injecting OneAgent into containerized processes.
There's no need to modify your Docker images, modify run commands, or create additional containers to enable Docker monitoring. Simply install Dynatrace OneAgent on your hosts that serve containerized applications and services. Dynatrace automatically detects the creation and termination of containers and monitors the applications and services contained within those containers.
Track microservices deployments
Microservices are commonly delivered via Docker containers. Monitoring your containers with Dynatrace enables monitoring of microservices and associated micro-deployments in your environment. You can track deployments of your Dockerized microservices and monitor distributed applications across your network of hosts or cloud instances.
See Dockerized services in context
Bringing all your services’ monitoring data into context allows you to see the big picture of your application’s performance. With information regarding your Dockerized applications and services in hand, you can make informed decisions regarding improving your software architecture and deployment.
The Docker overview page provides a summary of the most relevant information:
- The infographic at the top of the page displays the following:
- Number of running containers
- Top 3 containers consuming the most memory
- Most recently started container
- Most frequently used images
- The Average number of running containers section of the page provides deep insights into the dynamics of your Dockerized environment by showing you how the number of containers has evolved over the past 7 days.
- The Docker hosts section at the bottom of the page shows resource usage of individual Docker hosts. This information helps you make decisions about capacity planning and container provisioning.
Monitor Docker containers
To explore container resource usage, click a host in the Docker host list and then click the View containers button. This is information you could otherwise only get by executing a
docker stats command.
On the Containers grouped by image name page you’ll see all containers of the same image running on the same host that are consuming the most resources.
Provided metrics include:
- CPU: CPU user divided by CPU system, expressed as a percentage.
- Memory: Resident Set Size (RSS) and cache memory. RSS reflects data belonging to processes, while cache memory represents the data stored on disk that is currently cached in memory.
- Traffic: Both incoming and outgoing network traffic
- Throttling: Total time that a container’s CPU usage was throttled
Monitor Docker images
In large environments it can be a challenge to keep up with image versions deployed across hosts and to track the containers of a certain image version. The Docker images page makes it easy to identify hosts running containers of a specific image version. Here you can learn details such as when an image was created and its virtual size (cumulative space taken up by an image).
Monitor Dockerized services
Another valuable perspective is the Dockerized services page. Here you can view all Dockerized services in a list that includes insights into the load and response time of each service. You can correlate these metrics with the number of containers used to provide each service.
Enable Docker container monitoring
To enable Docker container monitoring:
- Make sure that you have a recent version of OneAgent installed on your Docker hosts and that your Docker version is supported.
- Go to Settings > Monitored Technologies.
- Make sure that the Plugin manager switch is enabled.
- Enable the Docker containers switch.
- Also enable the Docker switch further down the list.
The Docker tile now appears on your home dashboard. Click the Docker tile at any time to access the Docker overview page.
Running Docker on AWS Beanstalk?
Have a look at our guidelines for configuring monitoring for Linux.
- Docker containers on Linux can run in any of the following network modes: Host, Bridge, Container, Overlay, None, Macvlan. The default network mode is Bridge. From the available network modes, Dynatrace OneAgent is capable of reporting topology for containers running in network modes: Host, Bridge, and Container. Topology for other network modes isn't reported. Dynatrace OneAgent is however able to detect and report other network modes (with the exception of Macvlan).
- Docker topology isn't reported when using cloud-infrastructure monitoring mode on Linux.
- Non-standard Docker binary file locations aren't supported on Linux.
- There are performance limitations related to the number of running containers. The total number of containers that can be monitored in parallel isn't strictly defined though; this depends on the type of monitored applications and host resources.
- Container monitoring isn't supported when Dynatrace OneAgent is deployed on Linux in non-root mode (in absence of ambient capabilities and with the