FROM alpine:latest

RUN apk add --no-cache \
    bash       \
    curl       \
    ipvsadm    \
    iproute2   \
    keepalived \
    && addgroup -S keepalived_script \
    && adduser -S -s /sbin/nologin -G keepalived_script -H keepalived_script

COPY keepalived.conf /etc/keepalived/keepalived.conf
COPY check_apiserver.sh /etc/keepalived/check_apiserver.sh
COPY init.sh /

RUN chmod +x /init.sh && chmod +x /etc/keepalived/check_apiserver.sh

CMD ["/init.sh"]