ipfs: increase timeout and support dht experimental options

Author: hsanjuan

roles/ipfs/templates/etc/systemd/system/ipfs.service

@@ -7,6 +7,7 @@ Type=notify
 User=ipfs
 Group=ipfs
 StateDirectory=ipfs
+TimeoutStartSec=10800
 LimitNOFILE={{ ipfs_fd_max }}
 MemorySwapMax=0
 Environment="IPFS_FD_MAX={{ ipfs_fd_max}}"

roles/ipfs/templates/home/ipfs/ipfs_default_config

@@ -207,7 +207,9 @@
     "ShardingEnabled": false,
     "StrategicProviding": false,
     "UrlstoreEnabled": false,
-    "GraphsyncEnabled": false
+    "GraphsyncEnabled": false,
+    "AcceleratedDHTClient": {{ ipfs_experimental_accelerated_dht_client | default(False) | lower }},
+    "StrategicProviding": {{ ipfs_experimental_strategic_providing | default(False) | lower }}
   },
   "Plugins": {
     "Plugins": null