2.3. Building a container image

Procedure

1. Create a Containerfile:

   FROM registry.redhat.io/rhel10/rhel-bootc:latest
   RUN dnf -y install cloud-init && \
       ln -s ../cloud-init.target /usr/lib/systemd/system/default.target.wants && \
       dnf clean all

   This Containerfile example adds the cloud-init tool, so it automatically fetches SSH keys and can run scripts from the infrastructure and also gather configuration and secrets from the instance metadata. For example, you can use this container image for pre-generated AWS or KVM guest systems.

2. Build the <image> image by using Containerfile in the current directory:

   $ podman build -t quay.io/<namespace>/<image>:<tag> .