Images, the packages Docker uses for applications, are truly cross-platform. It can run containers on any system that supports the platform: a developer’s laptop, systems on on-prem, or in the cloud without modification. To build the image, we will use docker build command and tag it. Docker is a platform for packaging, deploying, and running applications in containers.

Create Java ApplicationĬreate a simple Java File, in the directory java-application, with name HelloWorld.java containing the following content. Now our Uber Jar file is created under the target folder with the format: 'target/.jar' (or.

We shall use the name java-application 2. For this Java Example, create a directory somewhere with name of your choice. In this tutorial, youll be running Jenkins as a Docker container from the.

Create a directoryĪ separate directory is useful to organise docker applications. The simple Java application (which youll obtain from a sample repository on. Review your settings, and then choose Run Task.Build Docker Image with Java Application 1. The default, recommended option is Enabled. You have seen in the above example that we used the Oracle Java image to successfully run a sample Java application. Create or update security groups (HTTP, HTTPS, and port 8080) to provide access to inbound and outbound connections.Įnable or disable the public IP, depending on whether you want to use a public IP address for Fargate tasks. (Optional) Specify a task group name to identify a set of related tasks as a task group.Ĭonfigure the cluster VPC, subnets, and security groups.Ĭonfigure the cluster VPC and the subnets on which you want to deploy the application. If you're launching with two or more tasks, a load balancer is required to distribute the traffic among the tasks.

For detailed instructions, see the links in the Related resources section.Ĭhoose task definition, revision, and platform version.Ĭhoose the task that you want to run, the revision of the task definition, and the platform version.Ĭhoose the cluster where you want to run the task from.Ĭonfigure the number of tasks that should run. When the task and container configurations are in place, create the task. Set memory limits for the application, and set port mappings ( 8080, 80) for the allowed ports. For the image, enter the Docker site name, the repository name, and the tag name of the Docker image ( docker.io/sample-repo/sample-application:sample-tag-name). For more information, see the Amazon ECS documentation.ĭefine a task name and configure the application with the appropriate amount of task memory and CPU. Open the Amazon ECS console at, choose Task definitions, and then create a new task definition. Running a Docker container in Amazon ECS requires a task definition.

Docker java web application example