Add Snap fullnode daemon

snap/hooks/configure

@@ -0,0 +1,30 @@
+#!/bin/bash -e
+
+echo Stopping daemons
+snapctl stop --disable solana.daemon-drone
+snapctl stop --disable solana.daemon-leader
+snapctl stop --disable solana.daemon-validator
+
+mode="$(snapctl get mode)"
+if [[ -z "$mode" ]]; then
+  exit 0
+fi
+
+$SNAP/bin/setup.sh "$(snapctl get num-tokens)"
+
+case $mode in
+leader+drone)
+  snapctl start --enable solana.daemon-leader
+  snapctl start --enable solana.daemon-drone
+  ;;
+leader)
+  snapctl start --enable solana.daemon-leader
+  ;;
+validator)
+  snapctl start --enable solana.daemon-validator
+  ;;
+*)
+  echo "Error: Unknown mode: $mode"
+  exit 1
+  ;;
+esac

snap/snapcraft.yaml

@@ -10,6 +10,10 @@ grade: devel
 # CUDA dependency, so use 'devmode' confinement for now
 confinement: devmode
 
+hooks:
+  configure:
+    plugs: []
+
 apps:
   drone:
     command: solana-drone
@@ -44,7 +48,35 @@ apps:
   client-demo:
     command: solana-client-demo
 
+  daemon-validator:
+    daemon: simple
+    command: validator.sh
+
+  daemon-leader:
+    daemon: simple
+    command: leader.sh
+
+  daemon-drone:
+    daemon: simple
+    command: drone.sh
+
 parts:
+  solana-rsync:
+    plugin: nil
+    override-build: |
+      # TODO: build rsync from source instead of sneaking it in from the host
+      # system...
+      set -x
+      mkdir -p $SNAPCRAFT_PART_INSTALL/bin
+      cp -av /usr/bin/rsync $SNAPCRAFT_PART_INSTALL/bin/
+
+  solana-scripts:
+    plugin: nil
+    override-build: |
+      set -x
+      mkdir -p $SNAPCRAFT_PART_INSTALL/bin
+      cp -av multinode-demo/* $SNAPCRAFT_PART_INSTALL/bin/
+
   solana-cuda:
     plugin: rust
     rust-channel: stable