Add basic GitHub Action

deploy.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+set -euo pipefail
+
+options="$1"
+SSH_HOME="${HOME}/.ssh"
+SSH_KEYPATH="${SSH_HOME}/deploy_key"
+
+mkdir -p "$SSH_HOME"
+echo "$SSH_KEY" > "$SSH_KEYPATH"
+chmod 600 "$SSH_KEYPATH"
+
+echo "Deploying..."
+rsync $options \
+  -e "ssh -i $SSH_KEYPATH -o StrictHostKeyChecking=no" \
+   "$RSYNC_SOURCE" "$RSYNC_USERHOST":"$RSYNC_DESTINATION"