How do I edit a file after I shell to a Docker container?

by

As in the comments, there’s no default editor set – strange – the $EDITOR environment variable is empty. You can log in into a container with:

docker exec -it <container> bash

And run:

apt-get update
apt-get install vim

Or use the following Dockerfile:

FROM  confluent/postgres-bw:0.1

RUN ["apt-get", "update"]
RUN ["apt-get", "install", "-y", "vim"]

Docker images are delivered trimmed to the bare minimum – so no editor is installed with the shipped container. That’s why there’s a need to install it manually.

EDIT

I also encourage you to read my post about the topic.

More Related Contents:

  1. Docker Compose wait for container X before starting Y
  2. What is the difference between docker-compose ports vs expose
  3. How to run shell script on host from docker container?
  4. Confused about Docker -t option to Allocate a pseudo-TTY
  5. How to mount a single file in a volume
  6. How to set the locale inside a Debian/Ubuntu Docker container?
  7. Exposing a port on a live Docker container
  8. How to update /etc/hosts file in Docker image during “docker build”
  9. Conditional COPY/ADD in Dockerfile?
  10. docker: “build” requires 1 argument. See ‘docker build –help’
  11. Docker build “Could not resolve ‘archive.ubuntu.com'” apt-get fails to install anything
  12. What is a dangling image and what is an unused image?
  13. What is the right way to add data to an existing named volume in Docker?
  14. Externalising Spring Boot properties when deploying to Docker
  15. How can I use a variable inside a Dockerfile CMD?
  16. Docker look at the log of an exited container
  17. How to Dockerize windows application
  18. What is the difference between ports and expose in docker-compose?
  19. How to fill user input for interactive command for “RUN” command?
  20. How to mount local volumes in docker machine
  21. How do I configure docker compose to expose ports correctly?
  22. Change directory command in Docker?
  23. Dockerfile build – possible to ignore error?
  24. Docker container doesn’t expose ports when –net=host is mentioned in the docker run command
  25. How to add initial users when starting a RabbitMQ Docker container?
  26. Connect to another container using Docker compose
  27. How many CPUs does a docker container use?
  28. What is the authoritative list of Docker Run exit codes?
  29. How to stop all containers when one container stops with docker-compose?
  30. Start sshd automatically with docker container

Leave a Comment