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diff --git a/bldr-imgs/bldr-alpine3/Dockerfile b/bldr-imgs/bldr-alpine3/Dockerfile
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+# O-RAN-SC
+#
+# Copyright (C) 2019-2020 AT&T Intellectual Property and Nokia
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This is an all-things-to-all-ORAN-people build image with:
+# alpine v 3.11
+# gcc/g++ v 8
+# golang v 1.13.4
+# python 3.7
+# mdc log libs (libmdclog.so, libmdbclog.so.X.X.X; see below for pinned version)
+# nng libs (rmr.h, libnng.so, libnng.so.X.X.X; version pinned by RMR)
+# rmr libs (librmr_nng.so, librmr_si.so, librmr_nng.so.X.X.X, librmr_si.so.X.X.X; see below for pinned version)
+#
+# Some packages (e.g., mdclog) install to /usr/local/lib, others (e.g., rmr) install to /usr/local/lib64
+# Alpine by default searches /usr/local/lib but not /usr/local/lib64
+#
+# How to get library files from this Docker base image:
+# COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3:TAG /usr/local/lib/libmdclog.so.X.X.X    /usr/local/lib
+# COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3:TAG /usr/local/lib64/libnng.so.X.X.X     /usr/local/lib
+# COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3:TAG /usr/local/lib64/librmr_nng.so.X.X.X /usr/local/lib
+# COPY --from=nexus3.o-ran-sc.org:10004/bldr-alpine3:TAG /usr/local/lib64/librmr_si.so.X.X.X  /usr/local/lib
+
+FROM python:3.7-alpine
+RUN apk update && apk add \
+  autoconf \
+  automake \
+  build-base \
+  cmake \
+  libtool \
+  ninja \
+  pkgconfig \
+  python-dev \
+  sudo \
+  git \
+  go
+
+# the autoconf-archive in alpine's edge repos is too new
+# for our purposes, so we'll use one from the source.
+RUN cd /tmp \
+    && git clone --branch v2015.09.25 git://git.sv.gnu.org/autoconf-archive.git \
+    && cp /tmp/autoconf-archive/m4/* /usr/share/aclocal \
+    && rm -rf /tmp/autoconf-archive
+
+# MCDLOG, version is pinned
+RUN cd /tmp \
+   && git clone --branch v0.0.4 https://gerrit.o-ran-sc.org/r/com/log \
+   && cd log \
+   && ./autogen.sh \
+   && ./configure \
+   && make \
+   && make install
+
+# install a well known working rmr including development header files,
+# which uses a submodule to install NNG at a known commit
+RUN apk update && apk add autoconf automake build-base cmake libtool ninja pkgconfig git sudo
+RUN git clone --branch 3.6.2 https://gerrit.oran-osc.org/r/ric-plt/lib/rmr \
+    && cd rmr \
+    && mkdir .build; cd .build \
+    && echo "<<<installing rmr devel headers>>>" \
+    && cmake .. -DDEV_PKG=1; make install \
+    && echo "<<< installing rmr .so>>>" \
+    && cmake .. -DPACK_EXTERNALS=1; make install