How to know which node:alpine image version is in running container

Question

I have one running container which uses node:alpine as base image.I want to know version of this image.

Answer 1

You can check the Dockerfile of the container if handy.

You can check the first line with FROM node:<version>-alpine

For example :

FROM node:12.18.1-alpine
ENV NODE_ENV=production
WORKDIR /app

You can also use the command docker image inspect

https://docs.docker.com/engine/reference/commandline/image_inspect/

You can also exec into the container to check the version of Node

Command to check node version:

docker exec -ti <Container name> sh -c "node --version"

Answer 2

Try running the command FROM node:<version>-alpine

You can also try running the command alpine -v or alpine -version .You can also start Alpine and press? on the main menu to open the main Help page, which will also tell you the version.

Refer to the link for more information.