Docker is the container runtime and image format that defined modern cloud deployment. The Moby engine underneath powers production containers at Netflix, PayPal, Stripe, and most SaaS companies.
Source: GitHub · fetched 2026-04-17
Docker launched in 2013 and made Linux containers usable for mainstream developers by wrapping namespaces and cgroups in a simple CLI, image format, and registry protocol. The open-source engine now lives at github.com/moby/moby under the Apache 2.0 license, while Docker Inc. sells Docker Desktop and Docker Hub as commercial products on top.
The OCI image and runtime specs that came out of Docker are now the industry standard—Kubernetes, Podman, containerd, and every cloud's container service consume Docker-format images. Docker Desktop remains the most common local development environment for containers on macOS and Windows, despite licensing changes in 2021 that pushed some enterprises to Podman or Rancher Desktop.
Docker images run in production at Netflix, PayPal, Stripe, Visa, ING, and essentially every SaaS company built after 2015. Docker Desktop is installed on most developer laptops at companies large enough to have a container-based deployment pipeline. Docker Hub hosts the majority of public base images.
Docker users are backend developers who build and push images, platform engineers who maintain base images and registries, DevOps engineers who run Docker Compose for local dev stacks, and security teams who scan images. These personas buy registries, image scanners, CI/CD, Kubernetes distributions, and SBOM tooling—a direct overlap with cloud-native buyer profiles.
According to the Docker README: “Moby is an open-source project created by Docker to enable and accelerate software containerization.” (source)
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Docker is used in production at Google, Netflix, Spotify, Airbnb, PayPal, and essentially every company shipping software in containers — Docker is the de-facto containerization standard.
Docker, Inc. maintains the Docker CLI, Desktop, and Hub. The core container runtime is Moby (open-source, Apache 2.0), and containerd (the CNCF-graduated runtime) is maintained separately by the CNCF community.
Podman (rootless, Docker-compatible CLI), containerd (runtime without daemon), LXC/LXD (system containers), buildah (image building without daemon), and Kaniko (container builds in Kubernetes without Docker daemon).
Docker has 2,565 contributors (GitHub, 2026/04). It is one of the more actively contributed open-source projects in its category, with contributions from both individual developers and corporate engineering teams.
Yes. Docker is production-ready: it has 71.5k GitHub stars, 2,565 contributors (GitHub, 2026/04), and is last released Apr 2026. It is used in production at large-scale organizations and has a mature release cadence.
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