Reduce the memory usage of go-ipfs

Lower the number of connections, change the routing mode to dhtclient,
and disable bandwidth metrics. This is hardcoded for now

recipes/default.rb

@@ -83,3 +83,26 @@ end
 ipfs_config 'Swarm.AddrFilters' do
   value node['ipfs']['config']['swarm']['addr_filter']
 end
+
+# Do not keep track of bandwidth metrics. Disabling bandwidth metrics can
+# lead to a slight performance improvement, as well as a reduction in memory
+# usage.
+ipfs_config 'Swarm.DisableBandwidthMetrics' do
+  value true
+end
+
+# Disable the p2p-circuit relay transport
+ipfs_config 'Swarm.DisableRelay' do
+  value true
+end
+
+# Number of connections that, when exceeded, will trigger a connection GC
+# operation
+ipfs_config 'Swarm.ConnMgr.HighWater' do
+  value 10
+end
+
+# Minimum number of connections to maintain
+ipfs_config 'Swarm.ConnMgr.LowWater' do
+  value 1
+end