podman
Table of ContentsClose
1. Usage
1.1. Creating a tar image dump
This can be useful for inspection
podman save --output alpine.tar --format=oci-archive alpine:3.17.1
2. Dockerfile tips
2.1. Add user
- Don't run as root inside container
- user id is set by you so builds will be reproducible
RUN groupadd --gid 9999 appuser && \ useradd --system --uid 9999 -g appuser --create-home appuser WORKDIR /home/appuser USER appuser
2.2. FROM should be absolute
FROM python:3.7.3-alpine3.9 instead of FROM python:3