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authorViacheslav Hletenko <v.gletenko@vyos.io>2022-09-05 18:35:39 +0000
committerViacheslav Hletenko <v.gletenko@vyos.io>2022-09-07 14:54:35 +0000
commita8e73794ec421ad2bb0053214504f20a1dc3b21a (patch)
treedef1b03e7a364803f21239a39dff56a1238b563a /src/conf_mode/system_update_check.py
parent735767f09f891c438e43565f935b927e6f1b317d (diff)
downloadvyos-1x-a8e73794ec421ad2bb0053214504f20a1dc3b21a.tar.gz
vyos-1x-a8e73794ec421ad2bb0053214504f20a1dc3b21a.zip
update-check: T3476: Allow update-check for VyOS images
Ability to autocheck available new images Parse remote URL JSON image-version.json file and compare version VyOS with a local current version, if find diff sent wall message that the new image is available Also, add op-mode command to check images "show system image" With option "auto-check" check will be once per 12 hours set system update-check auto-check set system update-check url 'http://example.com/image-version.json' If new version is available shows it per login (MOTD)
Diffstat (limited to 'src/conf_mode/system_update_check.py')
-rwxr-xr-xsrc/conf_mode/system_update_check.py93
1 files changed, 93 insertions, 0 deletions
diff --git a/src/conf_mode/system_update_check.py b/src/conf_mode/system_update_check.py
new file mode 100755
index 000000000..08ecfcb81
--- /dev/null
+++ b/src/conf_mode/system_update_check.py
@@ -0,0 +1,93 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+import os
+import json
+import jmespath
+
+from pathlib import Path
+from sys import exit
+
+from vyos.config import Config
+from vyos.util import call
+from vyos import ConfigError
+from vyos import airbag
+airbag.enable()
+
+
+base = ['system', 'update-check']
+service_name = 'vyos-system-update'
+service_conf = Path(f'/run/{service_name}.conf')
+motd_file = Path('/run/motd.d/10-vyos-update')
+
+
+def get_config(config=None):
+ if config:
+ conf = config
+ else:
+ conf = Config()
+
+ if not conf.exists(base):
+ return None
+
+ config = conf.get_config_dict(base, key_mangling=('-', '_'),
+ get_first_key=True, no_tag_node_value_mangle=True)
+
+ return config
+
+
+def verify(config):
+ # bail out early - looks like removal from running config
+ if config is None:
+ return
+
+ if 'url' not in config:
+ raise ConfigError('URL is required!')
+
+
+def generate(config):
+ # bail out early - looks like removal from running config
+ if config is None:
+ # Remove old config and return
+ service_conf.unlink(missing_ok=True)
+ # MOTD used in /run/motd.d/10-update
+ motd_file.unlink(missing_ok=True)
+ return None
+
+ # Write configuration file
+ conf_json = json.dumps(config, indent=4)
+ service_conf.write_text(conf_json)
+
+ return None
+
+
+def apply(config):
+ if config:
+ if 'auto_check' in config:
+ call(f'systemctl restart {service_name}.service')
+ else:
+ call(f'systemctl stop {service_name}.service')
+
+
+if __name__ == '__main__':
+ try:
+ c = get_config()
+ verify(c)
+ generate(c)
+ apply(c)
+ except ConfigError as e:
+ print(e)
+ exit(1)