put blockchain cache in image

Dockerfile

@@ -1,5 +1,7 @@
 FROM phusion/baseimage:0.9.19
 
+ARG STEEMD_BLOCKCHAIN=https://cdn.datavibe.net/f/eeqj/20160906.steemd-blockchain.tbz2
+
 # steem:master as of 2016-08-18
 ARG STEEMD_REPO=https://github.com/steemit/steem.git
 ARG STEEMD_REV=master
@@ -35,6 +37,7 @@ RUN \
         libssl-dev \
         libtool \
         ncurses-dev \
+        pbzip2 \
         python3 \
         python3-dev \
     && \
@@ -117,9 +120,14 @@ RUN \
         /var/lib/apt/lists/* \
         /tmp/* \
         /var/tmp/* \
+        /var/cache/* \
         /usr/include \
         /usr/local/include
 
+# add blockchain cache to image
+ADD $STEEMD_BLOCKCHAIN /var/cache/steemd/blocks.tbz2
+
+RUN chmod a+rx /var/cache/steemd /var/cache/steemd/*
 
 ENV HOME /var/lib/steemd
 RUN useradd -s /bin/bash -m -d /var/lib/steemd steemd

steemd.run

@@ -46,15 +46,24 @@ if [[ ! -z "$STEEMD_PRIVATE_KEY" ]]; then
     ARGS+=" --private-key=$STEEMD_PRIVATE_KEY"
 fi
 
-# without --data-dir it uses cwd as datadir(!)
-# who knows what else it dumps into current dir
-cd $HOME
-
 # overwrite local config with image one
 cp /etc/steemd/config.ini $HOME/config.ini
 
 chown steemd:steemd $HOME/config.ini
 
+if [[ ! -d $HOME/blockchain ]]; then
+    # init with blockchain cached in image
+    ARGS+=" --replay-blockchain"
+    mkdir -p $HOME/blockchain/database
+    cd $HOME/blockchain/database
+    tar xvjpf /var/cache/steemd/blocks.tbz2
+    chown -R steemd:steemd $HOME/blockchain
+fi
+
+# without --data-dir it uses cwd as datadir(!)
+# who knows what else it dumps into current dir
+cd $HOME
+
 # slow down restart loop if flapping
 sleep 1