Containerfile.k3s

###############################################################################
# server4home-k3s — layered flavor that adds K3s to the base image.
#
# Mode (server / agent) is decided at *runtime* by /etc/server4home/k3s.conf,
# so the same image works for both "start a new cluster" and "join an existing
# cluster" deployments. See build/k3s/files/etc/server4home/k3s.conf.example.
###############################################################################

ARG BASE_IMAGE=localhost/server4home:stable
ARG K3S_VERSION=v1.35.4+k3s1

FROM ${BASE_IMAGE}

# Re-declare ARGs after FROM so they're visible in this stage.
ARG K3S_VERSION

# Stage K3s files into the rootfs (systemd unit, dnf repo, example conf).
COPY build/k3s/files/ /
COPY build/k3s/install.sh /tmp/install-k3s.sh

# Install K3s binary, SELinux policy, kubectl/crictl/ctr symlinks, enable unit.
RUN --mount=type=cache,dst=/var/cache \
    --mount=type=cache,dst=/var/log \
    K3S_VERSION="${K3S_VERSION}" bash /tmp/install-k3s.sh \
    && rm -f /tmp/install-k3s.sh

RUN bootc container lint