Unable to access DOCKER Container

I have set up two containers for Nginx and NodeJS in Ubuntu 16.04 Xenial on AWS. I use docker-compose. Everything works fine.

I would like to look into the Nginx container. For the same I use the command:

sudo docker exec -it <container-name> bash

And I get the following error

oci runtime error: exec failed: container_linux.go:265: starting container process caused "exec: \"bash\": executable file not found in $PATH"

The path is (using echo $PATH)

/home/ubuntu/bin:/home/ubuntu/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin

The docker-compose.yml is:

version: "0.9"
services:

nginx:
  build: ./nginx
  restart: always
  ports:
    - "80:80"
    - "443:443"
  volumes:
    - /etc/letsencrypt/:/etc/letsencrypt/
  links:
    - node:node

node:
  build: ./node
  restart: always
  ports:
   - "8080:8080"
  volumes:
    - ./node:/usr/src/app
    - /usr/src/app/node_modules

How do I access the container? Thanks

Solution

Are you sure that bash interpreter is available in your docker image ? It is not available in base alpine image for example.

You can try starting the container with :

sudo docker exec -it <container-name> sh

And see if the error still occurs.

BTW, usermod -aG docker <username> will allow you not to use sudo anymore to run docker command as user <username> .