How do I get "npm run build --prod" to work during the creation of a Docker image?-CodePudding

Whenever I run the following command to create a Docker image,

docker build -t ehi-member-portal:v1.0.0 -f ./Dockerfile .

I get the following results

I'm not sure why it is complaining about Node version because I am currently running

And I am not sure why it is detecting v12.14.1 when you see I am running v14.20.0. I installed Node and NPM using NVM. I used this site as a reference to how to create the node and ngix image for a container.

Here is the contents of my Dockerfile:

FROM node:12.14-alpine AS builder
WORKDIR /dist/src/app
RUN npm cache clean --force
COPY . .
RUN npm install
RUN npm run build --prod


FROM nginx:latest AS ngi
COPY --from=builder /dist/ehi-member-portal /usr/share/nginx/html
COPY /nginx.conf  /etc/nginx/conf.d/default.conf
EXPOSE 80

Here is more version information:

Any help would be HIGHLY appreciated. I need to figure this out.

CodePudding user response：

RUN npm run build --prod is executed INSIDE the docker container, and node inside is not in required version.

Also you clearly states that you want to use node v12 with

FROM node:12.14-alpine AS builder

so this is why it is "detected" as 12 because this is the node version inside the container. Bump the version. You can use some of images listed here https://hub.docker.com/_/node

 FROM node:14.20.0-alpine AS builder