anchor.diff:      && rm -rf /var/cache/apk/* \
       && rm -rf /tmp/api-gateway
   
  +ENV LUA_RESTY_HTTP_VERSION 0.07
  +RUN echo " ... installing lua-resty-http..." \
  +    && apk update \
  +    && apk add make \
  +    && mkdir -p /tmp/api-gateway \
  +    && curl -k -L https://github.com/pintsized/lua-resty-http/archive/v${LUA_RESTY_HTTP_VERSION}.tar.gz -o /tmp/api-gateway/lua-resty-http-${LUA_RESTY_HTTP_VERSION}.tar.gz \
  +    && tar -xf /tmp/api-gateway/lua-resty-http-${LUA_RESTY_HTTP_VERSION}.tar.gz -C /tmp/api-gateway/ \
  +    && cd /tmp/api-gateway/lua-resty-http-${LUA_RESTY_HTTP_VERSION} \
  +    && make install \
  +            LUA_LIB_DIR=${_prefix}/api-gateway/lualib \
  +            INSTALL=${_prefix}/api-gateway/bin/resty-install \
  +    && rm -rf /tmp/api-gateway
  +
  +ENV LUA_RESTY_IPUTILS_VERSION 0.2.0
  +RUN echo " ... installing lua-resty-iputils..." \
  +    && apk update \
  +    && apk add make \
  +    && mkdir -p /tmp/api-gateway \
  +    && curl -k -L https://github.com/hamishforbes/lua-resty-iputils/archive/v${LUA_RESTY_IPUTILS_VERSION}.tar.gz -o /tmp/api-gateway/lua-resty-iputils-${LUA_RESTY_IPUTILS_VERSION}.tar.gz \
  +    && tar -xf /tmp/api-gateway/lua-resty-iputils-${LUA_RESTY_IPUTILS_VERSION}.tar.gz -C /tmp/api-gateway/ \
  +    && cd /tmp/api-gateway/lua-resty-iputils-${LUA_RESTY_IPUTILS_VERSION} \
  +    && export LUA_LIB_DIR=${_prefix}/api-gateway/lualib \
  +    && export INSTALL=${_prefix}/api-gateway/bin/resty-install \
  +    && $INSTALL -d ${LUA_LIB_DIR}/resty \
  +    && $INSTALL lib/resty/*.lua ${LUA_LIB_DIR}/resty/ \
  +    && rm -rf /tmp/api-gateway
  +
   ENV CONFIG_SUPERVISOR_VERSION 1.0.0
   ENV GOPATH /usr/lib/go/bin
   ENV GOBIN  /usr/lib/go/bin
  
positive.code:     && rm -rf /var/cache/apk/* \
      && rm -rf /tmp/api-gateway
  
  ENV REQUEST_VALIDATION_VERSION 1.1.1
  RUN echo " ... installing api-gateway-request-validation ..." \
      && apk update \
  
negative.code:             INSTALL=${_prefix}/api-gateway/bin/resty-install \
      && apk del redis \
      && rm -rf /var/cache/apk/* \
      && rm -rf /tmp/api-gateway
  
  RUN \
  