T5448: Add service zabbix-agent version 2

Add service zabbix-agent

set service zabbix-agent directory '/config/zabbix/'
set service zabbix-agent limits buffer-flush-interval '8'
set service zabbix-agent limits buffer-size '120'
set service zabbix-agent log debug-level 'warning'
set service zabbix-agent log size '1'
set service zabbix-agent server '192.0.2.5'
set service zabbix-agent server-active 192.0.2.5 port '10051'
set service zabbix-agent server-active 2001:db8::123

1 files changed, 98 insertions, 0 deletions

diff --git a/src/conf_mode/service_zabbix_agent.py b/src/conf_mode/service_zabbix_agent.py
new file mode 100755
index 000000000..47de8f2ec
--- /dev/null
+++ b/src/conf_mode/service_zabbix_agent.py
@@ -0,0 +1,98 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2023 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 vyos.config import Config
+from vyos.template import render
+from vyos.utils.process import call
+from vyos import ConfigError
+from vyos import airbag
+airbag.enable()
+
+
+service_name = 'zabbix-agent2'
+service_conf = f'/run/zabbix/{service_name}.conf'
+systemd_override = r'/run/systemd/system/zabbix-agent2.service.d/10-override.conf'
+
+
+def get_config(config=None):
+    if config:
+        conf = config
+    else:
+        conf = Config()
+
+    base = ['service', 'zabbix-agent']
+
+    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,
+                                  with_recursive_defaults=True)
+
+    # Cut the / from the end, /tmp/ => /tmp
+    if 'directory' in config and config['directory'].endswith('/'):
+        config['directory'] = config['directory'][:-1]
+
+    return config
+
+
+def verify(config):
+    # bail out early - looks like removal from running config
+    if config is None:
+        return
+
+    if 'server' not in config:
+        raise ConfigError('Server is required!')
+
+
+def generate(config):
+    # bail out early - looks like removal from running config
+    if config is None:
+        # Remove old config and return
+        config_files = [service_conf, systemd_override]
+        for file in config_files:
+            if os.path.isfile(file):
+                os.unlink(file)
+
+        return None
+
+    # Write configuration file
+    render(service_conf, 'zabbix-agent/zabbix-agent.conf.j2', config)
+    render(systemd_override, 'zabbix-agent/10-override.conf.j2', config)
+
+    return None
+
+
+def apply(config):
+    call('systemctl daemon-reload')
+    if 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)