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Frequently Asked Questions

• What is swarm?

  Swarm provides global coverage at a fraction of the cost of legacy satellite providers. Swarm lets you remotely send commands to IoT devices in reaction to changing conditions.

• How do I re-authenticate swarm raft?

  As a solution, you should re-authenticate into the image registry using the docker login command and update the credentials stored into the Swarm RAFT state by running: This command will leave the service as it is, it will just update the credentials.

• How do we validate that our containerized application works well on swarm?

  In order to validate that our containerized application works well on Swarm, we’ll use Docker Desktop’s built in Swarm environment right on our development machine to deploy our application, before handing it off to run on a full Swarm cluster in production.

• Is there an app for Foursquare Swarm?

  Foursquare Swarm: Check-in App on the App Store This app is available only on the App Store for iPhone and Apple Watch. Swarm is the best way to keep track of the places you go. From the new café downtown to that killer ramen spot in Tokyo, you’ll never ask “what was the name of that place?” again.

• Where can I download the Swarm app?

  Swarm | Remember everywhere. Get it on the iOS app store. Get it on the Play store. Get it on the Huawei App Gallery. Remember everywhere.

• What is Swarm and how does it work?

  With Swarm, you instead create a service that defines what image to use, how many replica containers to create, and how those containers should interact with both the host and each other. For example, let’s deploy an Nginx image with three containers (for load balancing) and expose it over port 80.

• How do I use containers in swarm?

  In Swarm, you don’t interact directly with containers, but instead define servicesthat define what the final deployment will look like. Swarm handles deploying, connecting, and maintaining these containers until they meet the service definition. For example, imagine you want to deploy an Nginx web server.

• What is swarm orchestration and why should you care?

  Besides the existing challengesin container logging, Swarm adds another layer of complexity: an orchestration layer. Orchestration simplifies deployments by taking care of implementation details such as where and how containers are created. But if you need to troubleshoot an issue with your application, how do you know where to look?