c75700fe04
The Ubuntu Xenial update to kernel 4.4.0-119.143 from 4.4.0-116.140 did include a regression in the eBPF code. A basic `bpf_map_lookup_elem` call as found in the tcptracer-bpf library used by Scope leads to a kernel panic. As a result, Scope / the system crashes during startup when the tcptracer is initialized. The Scope bug report can be found here: https://github.com/weaveworks/scope/issues/3131 To avoid crashes and gently fallback to procfs (as Scope already does for systems not supporting eBPF), update `isKernelSupported()` and explicitly check for Ubuntu Kernel versions with the problem. Once the bug is fixed and an update published, the `abiNumber` check in `isKernelSupported()` can and should be updated with an upper limit. The Ubuntu bug report can be found here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1763454
Weave Scope - Troubleshooting & Monitoring for Docker & Kubernetes
Weave Scope automatically generates a map of your application, enabling you to intuitively understand, monitor, and control your containerized, microservices based application.
Understand your Docker containers in real-time
Choose an overview of your container infrastructure, or focus on a specific microservice. Easily identify and correct issues to ensure the stability and performance of your containerized applications.
Contextual details and deep linking
View contextual metrics, tags and metadata for your containers. Effortlessly navigate between processes inside your container to hosts your containers run on, arranged in expandable, sortable tables. Easily find the container using the most CPU or memory for a given host or service.
Interact with and manage containers
Interact with your containers directly: pause, restart and stop containers. Launch a command line. All without leaving the scope browser window.
Extend and customize via plugins
Add custom details or interactions for your hosts, containers and/or processes by creating Scope plugins; or just choose from some that others have already written at the Github Weaveworks Scope Plugins organization.
Getting started
sudo curl -L git.io/scope -o /usr/local/bin/scope
sudo chmod a+x /usr/local/bin/scope
scope launch
This script downloads and runs a recent Scope image from Docker Hub.
Now, open your web browser to http://localhost:4040. (If you're using
boot2docker, replace localhost with the output of boot2docker ip.)
For instructions on installing Scope on Kubernetes, DCOS or ECS, see the docs.
Getting help
If you have any questions about, feedback for or problems with Scope:
- Read the Weave Scope docs.
- Invite yourself to the #weave-community slack channel.
- Ask a question on the #weave-community slack channel.
- Join the Weave User Group and get invited to online talks, hands-on training and meetups in your area.
- Send an email to weave-users@weave.works
- File an issue.
Your feedback is always welcome!