DevOps and Docker Talk: Cloud Native Interviews and Tooling

Is Swarm at EOL?

Feb 6, 2025
The discussion centers around Swarm's uncertain future following Mirantis' involvement. The hosts explore whether Swarm could still be part of Docker Engine. Portainer’s insights shed light on the tool’s sustainability amid a Kubernetes surge. They also highlight the community's role and support for Swarm users facing these challenges. With the rising concerns, the conversation raises important questions about transitioning away from Swarm and what that means for developers.
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ANECDOTE

Bret's Swarm Journey

  • Bret Fisher has been a longtime fan of Docker Swarm and created multiple courses still selling today.
  • After Docker sold its enterprise business to Mirantis in 2019, Mirantis took over Swarm support and customers.
INSIGHT

Swarm Maintenance Mode

  • Mirantis hired engineers to maintain Swarm with small fixes and minor features annually.
  • Docker maintained Swarm in Docker Engine primarily by security fixes and library updates without new functionality.
INSIGHT

Portainer Signals Swarm Decline

  • Portainer signals that Swarm's future is limited with Mirantis focusing on Kubernetes in MKE4.
  • Mirantis will continue Swarm support on MKE3 but the clock is ticking for Swarm users.
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