federate two pleroma instances instead

Dockerfile.pleroma

@@ -26,6 +26,12 @@ WORKDIR /pleroma
 RUN git clone -b develop https://git.pleroma.social/pleroma/pleroma.git /pleroma \
     && git checkout ${PLEROMA_VER} 
 
+USER root
+COPY ./minica.pem /usr/local/share/ca-certificates/minica.crt
+RUN update-ca-certificates
+
+USER pleroma
+
 RUN echo "import Mix.Config" > config/prod.secret.exs \
     && mix local.hex --force \
     && mix local.rebar --force \