Chainguard Container for monstache

A go daemon that syncs mongodb to elasticsearch in realtime.

Chainguard Containers are regularly-updated, secure-by-default container images.

Download this Container Image

For those with access, this container image is available on cgr.dev:

docker pull cgr.dev/ORGANIZATION/monstache:latest

Be sure to replace the ORGANIZATION placeholder with the name used for your organization's private repository within the Chainguard Registry.

Compatibility Notes

Chainguard's Monstache image is a Wolfi-based container image. It is comparable to the Monstache image published by RWynn in functionality and has minimal dependencies. Similar to the rwynn/monstache image, this image does not come with any default configuration.

Getting Started

Monstache is a Go daemon that syncs MongoDB to Elasticsearch in real time. It is designed for MongoDB 3.6+ and Elasticsearch 7.0+. It uses the official MongoDB golang driver and the community supported Elasticsearch driver from olivere.

Using Monstache with Docker

Let say you have a monstache.config.toml file in your current working directory. In order for the container to work and sync with your MongoDB and Elasticsearch instances, you need to mount your custom monstache.config.toml file in the container. The following example runs Monstache with a custom configuration file:

docker run -it --rm -v "$(pwd)/monstache.config.toml:/monstache.config.toml" cgr.dev/ORGANIZATION/monstache -f monstache.config.toml

Using Monstache with Kubernetes

You can also run Monstache as a pod in your Kubernetes setup. In order for the pod to work properly and sync with your MongoDB and Elasticsearch pods, you would need to create a configmap with your custom monstache.config.toml and mount that configmap in your Monstache pod. The following example runs Monstache as a pod with a configmap containing your custom configuration file:

---
apiVersion: v1
kind: Pod
metadata:
  name: monstache-demo
spec:
  containers:
  - name: monstache
    image: cgr.dev/ORGANIZATION/monstache
    command: ["/bin/monstache", "-f", "monstache.config.toml"]
    volumeMounts:
      - name: config-volume
        mountPath: /monstache.config.toml
        subPath: monstache.config.toml
  volumes:
    - name: config-volume
      configMap:
        name: monstache-config
        items:
        - key: monstache.config.toml
          path: monstache.config.toml
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: monstache-config
data:
  monstache.config.toml: |
    # Your monstache configuration here

Documentation and Resources

Please refer to the official Monstache site for more information on configuration and usage.

What are Chainguard Containers?

Chainguard Containers are minimal container images that are secure by default.

In many cases, the Chainguard Containers tagged as :latest contain only an open-source application and its runtime dependencies. These minimal container images typically do not contain a shell or package manager. Chainguard Containers are built with Wolfi, our Linux undistro designed to produce container images that meet the requirements of a more secure software supply chain.

The main features of Chainguard Containers include:

• Minimal design, without unnecessary software bloat
• Daily builds to ensure container images are up-to-date with available security patches
• High quality build-time SBOMs attesting to the provenance of all artifacts within the image
• Verifiable signatures provided by Sigstore
• Reproducible builds with Cosign and apko (read more about reproducibility)

For cases where you need container images with shells and package managers to build or debug, most Chainguard Containers come paired with a -dev variant.

Although the -dev container image variants have similar security features as their more minimal versions, they feature additional software that is typically not necessary in production environments. We recommend using multi-stage builds to leverage the -dev variants, copying application artifacts into a final minimal container that offers a reduced attack surface that won’t allow package installations or logins.

Learn More

To better understand how to work with Chainguard Containers, please visit Chainguard Academy and Chainguard Courses.

In addition to Containers, Chainguard offers VMs and Libraries. Contact Chainguard to access additional products.

Trademarks

This software listing is packaged by Chainguard. The trademarks set forth in this offering are owned by their respective companies, and use of them does not imply any affiliation, sponsorship, or endorsement by such companies.