docker Q&A

Docker notes (Q&A)

1. Dockerfile best practices

2. How to create a user when using base alpine image?
   Alpine uses the command adduser and addgroup for creating users and groups (rather than useradd and usergroup).

FROM alpine:latest
# Create a group and user
RUN addgroup -S appgroup && adduser -S appuser -G appgroup
# Tell docker that all future commands should run as the appuser user
USER appuser