Ability to adjust IPFS max datastore (#717)

Author: alabdao

docker/images/ipfs/container-init.d/006-datastore.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+set -e
+
+if [ "${IPFS_DEBUG}" == "true" ]; then
+  set -x
+fi
+
+if [ -n "${IPFS_DATASTORE_STORAGEMAX}" ]; then
+  ipfs config Datastore.StorageMax "${IPFS_DATASTORE_STORAGEMAX}"
+fi
+
+if [ -N "${IPFS_DATASTORE_STORAGEGCWATERMARK}" ]; then
+  ipfs config Datastore.StorageGCWatermark "${IPFS_DATASTORE_STORAGEGCWATERMARK}"
+fi
+
+if [ -n "${IPFS_DATASTORE_GCPERIOD}" ]; then
+  ipfs config Datastore.GCPeriod "${IPFS_DATASTORE_GCPERIOD}"
+fi