[PGPRO-4074] Add Dockerfile building core for multimaster tests.

tags: multimaster

Author: arssher

Dockerfile

@@ -0,0 +1,21 @@
+FROM alpine:latest
+
+# Iputils fetches non-busybox ping which allows to run it under non-root, see
+# https://github.com/gliderlabs/docker-alpine/issues/253
+RUN apk add --update gcc libc-dev bison flex readline-dev zlib-dev perl make diffutils gdb iproute2 musl-dbg iputils linux-headers
+
+# Finally, there is no accidental postgres user in alpine, so create one
+RUN addgroup postgres && adduser -h /pg -D -G postgres postgres
+
+ENV LANG en_US.utf8
+ENV CFLAGS -O0
+ENV PATH /pg/install/bin:$PATH
+
+COPY ./ /pg/src
+
+RUN cd /pg/src && \
+	CFLAGS=-ggdb3 ./configure --enable-cassert --enable-debug --prefix=/pg/install && \
+	make -j 8 install
+
+# Crutch to allow regression test to write there
+RUN chown -R postgres:postgres /pg/src/src/test/regress