CODEWITHSUNDEEP
node.jsdocker
user7802257
user7802257

Reputation:

Can you update node:latest

FROM node:latest

RUN mkdir -p /app/templates
WORKDIR /app
COPY package.json /app/package.json
COPY *.js /app/
RUN npm install npm@latest -g

CMD     ["node","/app/index.js"]

From the above Dockerfile is there any way to update node like when you update Ubuntu or apt-get update?

Or, is npm all you can really control?

Upvotes: 2

Views: 7613

Answers (1)

MatTheWhale
MatTheWhale

Reputation: 977

As Russley Shaw said, docker pull node:latest will download the most recent node:latest image from DockerHub and if the downloaded image is different from your local one, it will overwrite your local node:latest image with the newer downloaded one. Then, when you do a docker build, Docker will recognize that node:latest has changed (assuming that your docker pull node:latest updated your local image). Then, Docker will invalidate all its caches used in building the container and rebuild it starting from the very first Dockerfile instruction at

FROM node:latest

You can check when the Node team last pushed a new image to DockerHub on their DockerHub repo page I believe.

Upvotes: 2

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