acme-tiny with python3

data/Dockerfiles/acme/Dockerfile

@@ -12,9 +12,9 @@ RUN apk add --update --no-cache \
   redis \
   tini \
   tzdata \
-  py-pip \
-  && pip install --upgrade pip \
-  && pip install acme-tiny
+  python3 \
+  && python3 -m pip install --upgrade pip \
+  && python3 -m pip install acme-tiny
 
 COPY docker-entrypoint.sh /srv/docker-entrypoint.sh
 COPY expand6.sh /srv/expand6.sh