Add selinux collector (#2205)
Add selinux collector Signed-off-by: Jonathan Davies <jpds@protonmail.com>pull/2417/head
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// Copyright 2022 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build linux && !noselinux
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// +build linux,!noselinux
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package collector |
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import ( |
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"github.com/go-kit/log" |
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"github.com/opencontainers/selinux/go-selinux" |
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"github.com/prometheus/client_golang/prometheus" |
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) |
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type selinuxCollector struct { |
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configMode *prometheus.Desc |
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currentMode *prometheus.Desc |
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enabled *prometheus.Desc |
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logger log.Logger |
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} |
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func init() { |
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registerCollector("selinux", defaultEnabled, NewSelinuxCollector) |
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} |
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// NewSelinuxCollector returns a new Collector exposing SELinux statistics.
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func NewSelinuxCollector(logger log.Logger) (Collector, error) { |
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const subsystem = "selinux" |
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return &selinuxCollector{ |
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configMode: prometheus.NewDesc( |
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prometheus.BuildFQName(namespace, subsystem, "config_mode"), |
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"Configured SELinux enforcement mode", |
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nil, nil, |
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), |
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currentMode: prometheus.NewDesc( |
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prometheus.BuildFQName(namespace, subsystem, "current_mode"), |
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"Current SELinux enforcement mode", |
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nil, nil, |
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), |
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enabled: prometheus.NewDesc( |
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prometheus.BuildFQName(namespace, subsystem, "enabled"), |
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"SELinux is enabled, 1 is true, 0 is false", |
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nil, nil, |
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), |
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logger: logger, |
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}, nil |
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} |
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func (c *selinuxCollector) Update(ch chan<- prometheus.Metric) error { |
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if !selinux.GetEnabled() { |
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ch <- prometheus.MustNewConstMetric( |
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c.enabled, prometheus.GaugeValue, 0) |
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return nil |
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} |
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ch <- prometheus.MustNewConstMetric( |
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c.enabled, prometheus.GaugeValue, 1) |
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ch <- prometheus.MustNewConstMetric( |
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c.configMode, prometheus.GaugeValue, float64(selinux.DefaultEnforceMode())) |
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ch <- prometheus.MustNewConstMetric( |
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c.currentMode, prometheus.GaugeValue, float64(selinux.EnforceMode())) |
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return nil |
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} |
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