Unable to go inside a running docker container - reactjs

Question

I am using ubuntu 22.04 lts as a sudo user.
I made a react application and then I created a image and ran it in a container successfully. But i want to go inside the container for which i ran the below command:
docker exec -it e448b7024af bash
but i got the following error:
Error response from daemon: Container e448b7024af19a0bb is not running
I ran the below command to check if container is running:
docker ps
// i got my container in the list
// also i did some actions in react application to double check if conatiner was working and it worked perfectly
below is the output for the above command:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
56f8042d2f1 react_d "docker-entrypoint.s…" 12 minutes ago Up 12 minutes 0.0.0.0:3000->3000/tcp, :::3000->3000/tcp youthful_sammet
then based on some other solution i tried the below command:
docker run -it e448b7024af /bin/bash
and i got the following error:
Unable to find image 'e448b7024af:latest' locally
docker: Error response from daemon: pull access denied for e448b70254af, repository does not exist or may require 'docker login': denied: requested access to the resource is denied.
See 'docker run --help'.
then i tried the following command based on some solution i found:
docker pull e448b7024af:latest
but i got the following error:
Error response from daemon: pull access denied for e448b7024af, repository does not exist or may require 'docker login': denied: requested access to the resource is denied
i also tried:
docker exec -it 568f8042d2f1 bash
and i got the following error:
OCI runtime exec failed: exec failed: unable to start container process: exec: "bash": executable file not found in $PATH: unknown
Below is my Dockerfile:
FROM node:alpine
WORKDIR /app
COPY /package*.json ./
RUN npm install
COPY . .
CMD ["npm","run","start"]
My container is working properly but i am unable to get inside of the container. Any help is appreciated. Thanks in advance.

Answer 1

Based on the output from docker ps, your container id is 56f8042d2f1 and not e448b7024af which I suspect might be your image id or a container id from a previous run.
Another thing is that bash isn't installed in Alpine images by default. You can use sh instead.
You can use the more human-friendly container name of youthful_sammet in your command and do
docker exec -it youthful_sammet sh
or, if you prefer the id
docker exec -it 56f8042d2f1 sh

Answer 2

you are using the wrong container identifier in the docker exec command as when you do docker ps the container id is different and you are using the wrong one.
I personally use the container name as identifier it is easy to remember.