T5474: establish common file name pattern for XML conf mode commands

We will use _ as CLI level divider. The XML definition filename and also
the Python helper should match the CLI node.

Example:
set interfaces ethernet -> interfaces_ethernet.xml.in
set interfaces bond -> interfaces_bond.xml.in
set service dhcp-server -> service_dhcp-server-xml.in

1 files changed, 118 insertions, 0 deletions

diff --git a/src/conf_mode/service_salt-minion.py b/src/conf_mode/service_salt-minion.py
new file mode 100755
index 000000000..a8fce8e01
--- /dev/null
+++ b/src/conf_mode/service_salt-minion.py
@@ -0,0 +1,118 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2018-2022 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
+
+from socket import gethostname
+from sys import exit
+from urllib3 import PoolManager
+
+from vyos.base import Warning
+from vyos.config import Config
+from vyos.configverify import verify_interface_exists
+from vyos.template import render
+from vyos.utils.process import call
+from vyos.utils.permission import chown
+from vyos import ConfigError
+
+from vyos import airbag
+airbag.enable()
+
+config_file = r'/etc/salt/minion'
+master_keyfile = r'/opt/vyatta/etc/config/salt/pki/minion/master_sign.pub'
+
+user='minion'
+group='vyattacfg'
+
+def get_config(config=None):
+    if config:
+        conf = config
+    else:
+        conf = Config()
+    base = ['service', 'salt-minion']
+
+    if not conf.exists(base):
+        return None
+
+    salt = conf.get_config_dict(base, key_mangling=('-', '_'), get_first_key=True)
+    # ID default is dynamic thus we can not use defaults()
+    if 'id' not in salt:
+        salt['id'] = gethostname()
+    # We have gathered the dict representation of the CLI, but there are default
+    # options which we need to update into the dictionary retrived.
+    salt = conf.merge_defaults(salt, recursive=True)
+
+    if not conf.exists(base):
+        return None
+    else:
+        conf.set_level(base)
+
+    return salt
+
+def verify(salt):
+    if not salt:
+        return None
+
+    if 'hash' in salt and salt['hash'] == 'sha1':
+        Warning('Do not use sha1 hashing algorithm, upgrade to sha256 or later!')
+
+    if 'source_interface' in salt:
+        verify_interface_exists(salt['source_interface'])
+
+    return None
+
+def generate(salt):
+    if not salt:
+        return None
+
+    render(config_file, 'salt-minion/minion.j2', salt, user=user, group=group)
+
+    if not os.path.exists(master_keyfile):
+        if 'master_key' in salt:
+            req = PoolManager().request('GET', salt['master_key'], preload_content=False)
+            with open(master_keyfile, 'wb') as f:
+                while True:
+                    data = req.read(1024)
+                    if not data:
+                        break
+                    f.write(data)
+
+            req.release_conn()
+            chown(master_keyfile, user, group)
+
+    return None
+
+def apply(salt):
+    service_name = 'salt-minion.service'
+    if not salt:
+        # Salt removed from running config
+        call(f'systemctl stop {service_name}')
+        if os.path.exists(config_file):
+            os.unlink(config_file)
+    else:
+        call(f'systemctl restart {service_name}')
+
+    return None
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)