Docker version 1.11 or later is installed and running.Easily connect multiple services togetherDocker images are automatically built on every release. For an automated example that uses cp-all-in-one, refer to cp-all-in-one automated quickstart which follows the Quick Start for Confluent Platform (Docker). This Docker Compose file launches all services in Confluent Platform, and runs them in containers in your local host.Docker Compose installs automatically with Docker Desktop.The API Connect Toolkit comes packaged with a Docker version of the API Gateway (DataPower) for testing full-featured policies locally on your workstation. Then, with a single command, you create and start all the services from your configuration. With Compose, you use a YAML file to configure your application’s services. Docker Compose is a tool for defining and running multi-container Docker applications. The -p flag exposes port 5000 in the container to port 5000 on our host machine, -it flag allows us to see the logs from the container and we run python3 api.py in the my-api image.Docker Desktop is the easiest way to get started with either Swarm or Kubernetes.A swarm is a group of machines that are running Docker and joined into a cluster. If you've read anything about Docker, you have probably heard of Kubernetes and Docker swarm mode. At the command line, typeWhile it is easy to run an application in isolation on a single machine, orchestration allows you to coordinate multiple machines to manage an application, with features like replication, encryption, load balancing, service discovery and more. It also specifies the password, which you wouldn’t want to do in a real world situation.To run it, open a command line and navigate to the same directory as the docker-compose.yml file.
Managers run the swarm cluster, making sure nodes can communicate with each other, allocate applications to different nodes, and handle a variety of other tasks in the cluster.Swarm uses the Docker command line or the Docker Compose file format with a few additions. After joining a swarm, they are referred to as nodes.Swarm mode uses managers and workers to run your applications. The machines in a swarm can be physical or virtual. A results page running in Node.js that draws from the database.Now, click on localhost:5000 to vote. A worker that goes into the redis instance, pulls out data and pushes it into the database. A redis instance to store key value pairs. Docker Rest Api Code For AllIn a multi-node environment, Swarm will spread out the replicas however you want. So when the result app calls on the database, it connects to and the Swarm takes care of directory the service to `db`. The services all refer to each other by name. There’s a lot going on here but here are some points to highlight: Open up different browsers to add in additional votes if you want.The code for all these components is in our Example Voting App repo on GitHub. On localhost:5001 you can see the results of the vote. Stretch an object word for macNote the “Processed by container ID “ at the bottom of the page. Here’s how you can see this in action:Load localhost:5000 again.
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