Update to latest server script

update-server.py

@@ -0,0 +1,33 @@
+from os import remove, symlink
+
+from requests import get
+
+
+manifest = get('https://launchermeta.mojang.com/mc/game/version_manifest.json')
+versions = manifest.json()['versions']
+for version in versions:
+    if version['type'] == 'release':
+        break
+
+server_id = version['id']
+print(f'Found version {server_id}')
+
+latest_info_url = version['url']
+latest_info = get(latest_info_url)
+server_url = latest_info.json()['downloads']['server']['url']
+
+server = get(server_url)
+
+fname = f'minecraft_server.{server_id}.jar'
+fullpath = f'/home/ubuntu/minecraft/{fname}'
+print(f'Writing to {fullpath}')
+with open(fname, 'wb') as f:
+    f.write(server.content)
+
+linkname = '/home/ubuntu/minecraft/server.jar'
+print(f'Symlinking {linkname} to {fullpath}')
+try:
+    remove(linkname)
+except FileNotFoundError:
+    pass
+symlink(fname, linkname)