Dockerfile

FROM alpine:3.19 as builder

ARG OPENFORTIVPN_VERSION=v1.22.1

# Build openfortivpn binary
RUN apk update \
    && apk add --no-cache \
        openssl-dev \
        ppp \
        ca-certificates \
        curl \
    && apk add --no-cache --virtual .build-deps \
        automake \
        autoconf \
        g++ \
        gcc \
        make \
    && mkdir -p "/usr/src/openfortivpn" \
    && cd "/usr/src/openfortivpn" \
    && curl -Ls "https://github.com/adrienverge/openfortivpn/archive/${OPENFORTIVPN_VERSION}.tar.gz" \
        | tar xz --strip-components 1 \
    && aclocal \
    && autoconf \
    && automake --add-missing \
    && ./configure --prefix=/usr --sysconfdir=/etc \
    && make \
    && make install \
    && apk del .build-deps


# Build final image
FROM alpine:3.19

RUN apk add --no-cache \
        ca-certificates \
        openssl \
        ppp \
        curl \
        su-exec \
        socat

COPY --from=builder /usr/bin/openfortivpn /usr/bin/openfortivpn
COPY ./docker-entrypoint.sh /usr/bin/

ENTRYPOINT ["docker-entrypoint.sh"]
CMD ["openfortivpn"]