FROM alpine:3.20@sha256:d9e853e87e55526f6b2917df91a2115c36dd7c696a35be12163d44e6e2a4b6bc

RUN apk add --no-cache chrony \
    && mkdir -p /var/run/chrony /var/lib/chrony /var/log/chrony

# chrony.conf is mounted at /etc/chrony/chrony.conf by compose.
ENTRYPOINT ["chronyd", "-d", "-n", "-f", "/etc/chrony/chrony.conf"]
