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Dockerfile
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FROM alpine:3.5
MAINTAINER Bertrand Gouny <bertrand.gouny@osixia.net>
# add keepalived sources to /tmp/keepalived-sources
ADD . /tmp/keepalived-sources
# Add keepalived default script user to make sure their IDs get assigned consistently,
# regardless of whatever dependencies get added
RUN addgroup -S keepalived_script && adduser -D -S -G keepalived_script keepalived_script
# 1. install required libraries and tools
# 2. compile and install keepalived
# 3. remove keepalived sources and unnecessary libraries and tools
RUN apk --no-cache add \
gcc \
ipset \
ipset-dev \
iptables \
iptables-dev \
libnfnetlink \
libnfnetlink-dev \
libnl3 \
libnl3-dev \
make \
musl-dev \
openssl \
openssl-dev \
autoconf \
&& cd /tmp/keepalived-sources \
&& ./configure --disable-dynamic-linking \
&& make && make install \
&& cd - \
&& rm -rf /tmp/keepalived-sources \
&& apk --no-cache del \
gcc \
ipset-dev \
iptables-dev \
libnfnetlink-dev \
libnl3-dev \
make \
musl-dev \
openssl-dev \
autoconf
ADD docker/keepalived.conf /usr/local/etc/keepalived/keepalived.conf
# set keepalived as image entrypoint with --dont-fork and --log-console (to make it docker friendly)
# define /usr/local/etc/keepalived/keepalived.conf as the configuration file to use
ENTRYPOINT ["/usr/local/sbin/keepalived","--dont-fork","--log-console", "-f","/usr/local/etc/keepalived/keepalived.conf"]
# example command to customise keepalived daemon:
# CMD ["--log-detail","--dump-conf"]