[SOLVED] Docker The Input Device Is Not a TTY error – Check My 1 Secret To Solve It!

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In this post I will show you the super easy solution for error: Docker The input device is not a TTY! This error will occur if you are trying to run container using -it option, which means that you want to run container for interactive processes (like a shell).

Docker The Input Device Is Not a TTY

First time I have encountered this problem when I was trying to run container from Jenkins pipeline. First, let’s check the general command:

docker run [OPTIONS] IMAGE [COMMAND] [ARG...]

Conclusion: “docker run -it”

In case when you would like to run container from command line and that use shell/bash you need to use -it option like below:

docker run -it my_docker_image

In case when you are running container through remote process you have to remove -it options:

docker run my_docker_image

Execute command in container: docker-compose exec -T

The same approach you must apply when you would like to execute command in container. Let’s image situation when you have run docker-compose.yml file with set of services and you would like to execute command inside container. Than you must use -T option:

docker-compose exec -T <container_name> sh -c "/scripts/run.sh"

More about Docker-Compose

Compose is a tool for defining and running multi-container Docker applications. With Compose, you use a YAML file to configure your application’s services. Then, with a single command, you create and start all the services from your configuration. To learn more about all the features of Compose, see the list of features.

Compose works in all environments: production, staging, development, testing, as well as CI workflows. You can learn more about each case in Common Use Cases.

Compose has commands for managing the whole lifecycle of your application:

Start, stop, and rebuild servicesView the status of running servicesStream the log output of running servicesRun a one-off command on a service.

Compose caches the configuration used to create a container. When you restart a service that has not changed, Compose re-uses the existing containers. Re-using containers means that you can make changes to your environment very quickly.

Compose supports variables in the Compose file. You can use these variables to customize your composition for different environments, or different users. See Variable substitution for more details.

An important part of any Continuous Deployment or Continuous Integration process is the automated test suite. Automated end-to-end testing requires an environment in which to run tests. Compose provides a convenient way to create and destroy isolated testing environments for your test suite. By defining the full environment in a Compose file, you can create and destroy these environments in just a few commands:

https://docs.docker.com/compose/

Summary

Docker is an open-source software application that automates the deployment of applications in containers. A container is a runtime environment that partitions an application into a self-contained, isolated environment. Containers allow developers to quickly and easily to deploy applications in a repeatable, automated fashion.

Why use Docker?

There are a number of reasons why you might want to use Docker. Some of the benefits include:

  • Reduced development time: Docker containers allow you to quickly and easily build, test, and deploy applications
  • Increased security: Containers isolate applications from each other and from the underlying infrastructure.

What is a Docker Container?

A Docker Container is a lightweight, portable, self-contained virtual machine that runs applications and supports multiple layers of security. Docker containers allow for quick and easy development and deployment of applications.

Docker uses an image format to package an application and all of its dependencies. You create an image by including a description of the application, the operating system on which it will run, and the environment in which it will be deployed. You can then deploy the image to a Docker container on a host.

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