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.NET Monitor Tool

Featured Tags

  • 9 (Release Candidate)
    • docker pull mcr.microsoft.com/dotnet/monitor:9
  • 8 (Long-Term Support)
    • docker pull mcr.microsoft.com/dotnet/monitor:8
  • 6 (Long-Term Support)
    • docker pull mcr.microsoft.com/dotnet/monitor:6

About

This image contains .NET Monitor, a diagnostic tool for capturing diagnostic artifacts (such as dumps and traces) in an operator-driven or automated manner. This tool is an ASP.NET application that hosts a web API for inspecting .NET processes and collecting diagnostic artifacts. This image also contains .NET Monitor extensions for egressing artifacts to Azure Blob Storage and Amazon S3.

Watch discussions for Docker-related .NET announcements.

New: Ubuntu Chiseled Images

Ubuntu Chiseled .NET images are a type of "distroless" container image that contain only the minimal set of packages .NET needs, with everything else removed. These images offer dramatically smaller deployment sizes and attack surface by including only the minimal set of packages required to run .NET applications.

Please see the Ubuntu Chiseled + .NET documentation page for more info.

Usage

The .NET Docker samples show various ways to use .NET and Docker together. See Building Docker Images for .NET Applications to learn more.

You can run this image as a sidecar container to collect diagnostic information and artifacts from other containers running .NET Core 3.1 or .NET 5 and later.

See Running in Kubernetes or Running in Docker Compose for examples of how to run this image in orchestration environments.

See documentation for how to configure the image and documentation for the web API.

Related Repositories

.NET:

.NET Framework:

Full Tag Listing

Linux amd64 Tags

Tags Dockerfile OS Version
9.0.0-rc.2, 9.0, 9 Dockerfile Azure Linux 3.0
8.0.5-ubuntu-chiseled, 8.0-ubuntu-chiseled, 8-ubuntu-chiseled, 8.0.5, 8.0, 8, latest Dockerfile Ubuntu 22.04
8.0.5-cbl-mariner-distroless, 8.0-cbl-mariner-distroless, 8-cbl-mariner-distroless Dockerfile CBL-Mariner 2.0
6.3.9-alpine, 6.3-alpine, 6-alpine, 6.3.9, 6.3, 6 Dockerfile Alpine 3.20
6.3.9-ubuntu-chiseled, 6.3-ubuntu-chiseled, 6-ubuntu-chiseled Dockerfile Ubuntu 22.04
6.3.9-cbl-mariner, 6.3-cbl-mariner, 6-cbl-mariner Dockerfile CBL-Mariner 2.0
6.3.9-cbl-mariner-distroless, 6.3-cbl-mariner-distroless, 6-cbl-mariner-distroless Dockerfile CBL-Mariner 2.0

Linux arm64 Tags

Tags Dockerfile OS Version
9.0.0-rc.2, 9.0, 9 Dockerfile Azure Linux 3.0
8.0.5-ubuntu-chiseled, 8.0-ubuntu-chiseled, 8-ubuntu-chiseled, 8.0.5, 8.0, 8, latest Dockerfile Ubuntu 22.04
8.0.5-cbl-mariner-distroless, 8.0-cbl-mariner-distroless, 8-cbl-mariner-distroless Dockerfile CBL-Mariner 2.0
6.3.9-alpine, 6.3-alpine, 6-alpine, 6.3.9, 6.3, 6 Dockerfile Alpine 3.20
6.3.9-ubuntu-chiseled, 6.3-ubuntu-chiseled, 6-ubuntu-chiseled Dockerfile Ubuntu 22.04
6.3.9-cbl-mariner, 6.3-cbl-mariner, 6-cbl-mariner Dockerfile CBL-Mariner 2.0
6.3.9-cbl-mariner-distroless, 6.3-cbl-mariner-distroless, 6-cbl-mariner-distroless Dockerfile CBL-Mariner 2.0

Tags not listed in the table above are not supported. See the Supported Tags Policy. See the full list of tags for all supported and unsupported tags.

Support

Lifecycle

Image Update Policy

  • Base Image Updates: Images are re-built within 12 hours of any updates to their base images (e.g. debian:bookworm-slim, windows/nanoserver:ltsc2022, etc.).
  • .NET Releases: Images are re-built as part of releasing new .NET versions. This includes new major versions, minor versions, and servicing releases.
  • Critical CVEs: Images are re-built to pick up critical CVE fixes as described by the CVE Update Policy below.
  • Monthly Re-builds: Images are re-built monthly, typically on the second Tuesday of the month, in order to pick up lower-severity CVE fixes.
  • Out-Of-Band Updates: Images can sometimes be re-built when out-of-band updates are necessary to address critical issues. If this happens, new fixed version tags will be updated according to the Fixed version tags documentation.

CVE Update Policy

.NET container images are regularly monitored for the presence of CVEs. A given image will be rebuilt to pick up fixes for a CVE when:

  • We detect the image contains a CVE with a CVSS score of "Critical"
  • AND the CVE is in a package that is added in our Dockerfile layers (meaning the CVE is in a package we explicitly install or any transitive dependencies of those packages)
  • AND there is a CVE fix for the package available in the affected base image's package repository.

Please refer to the Security Policy and Container Vulnerability Workflow for more detail about what to do when a CVE is encountered in a .NET image.

Feedback

License