Add Dockerfile.

Dockerfile

@@ -0,0 +1,62 @@
+# tinyproxy - A fast light-weight HTTP proxy
+# Copyright (C) 2019 Kaito Yamada <kaitoy@pcap4j.org>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+FROM alpine:3.10 as build
+
+COPY / /src
+WORKDIR /src
+
+RUN apk update \
+    && \
+    apk add --no-cache \
+        make \
+        automake \
+        gcc \
+        musl-dev \
+        asciidoc \
+        autoconf \
+    && \
+    ./autogen.sh \
+    && \
+    ./configure \
+        --prefix=/tmp \
+        --enable-xtinyproxy \
+        --enable-filter \
+        --enable-upstream \
+        --enable-transparent \
+        --enable-reverse \
+    && \
+    make \
+    && \
+    make install \
+    && \
+    rm -rf /tmp/share/doc /tmp/share/man
+
+FROM alpine:3.10
+
+COPY --from=build /tmp/share /tinyproxy/share
+COPY --from=build /tmp/etc /tinyproxy/etc
+COPY --from=build /tmp/bin /tinyproxy/bin
+
+RUN apk update \
+    && \
+    apk add --no-cache \
+        tini \
+        ca-certificates
+
+ENTRYPOINT ["tini", "--", "/tinyproxy/bin/tinyproxy"]
+CMD ["-d", "-c", "/tinyproxy/etc/tinyproxy/tinyproxy.conf"]