Merge branch 'dblab_container_zfs' into 'master'

chore(engine): use ZFS version 2.1.2 inside DLE container

See merge request postgres-ai/database-lab!343

Author: agneum

engine/Dockerfile.dblab-server

@@ -3,7 +3,9 @@
 FROM docker:19.03.15
 
 # Install dependencies.
-RUN apk update && apk add --no-cache zfs lvm2 bash util-linux
+RUN apk update \
+  && apk add zfs=2.1.2-r0 --no-cache --repository=https://dl-cdn.alpinelinux.org/alpine/edge/main \
+  && apk add --no-cache lvm2 bash util-linux
 RUN echo 'http://dl-cdn.alpinelinux.org/alpine/v3.13/main' >> /etc/apk/repositories \
   && echo 'http://dl-cdn.alpinelinux.org/alpine/v3.13/community' >> /etc/apk/repositories \
   && apk add bcc-tools=0.18.0-r0 bcc-doc=0.18.0-r0 && ln -s $(which python3) /usr/bin/python \