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alloy.go
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alloy.go
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// Copyright 2023 Hedgehog
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package meta
import (
"regexp"
"github.com/pkg/errors"
)
var alloyLabel = regexp.MustCompile(`^[a-z]([_a-z0-9]*[a-z0-9])?$`)
// +kubebuilder:object:generate=true
type AlloyConfig struct {
AgentScrapeIntervalSeconds uint `json:"agentScrapeIntervalSeconds,omitempty"`
UnixExporterEnabled bool `json:"unixExporterEnabled,omitempty"`
UnixExporterCollectors []string `json:"unixExporterCollectors,omitempty"`
UnixScrapeIntervalSeconds uint `json:"unixScrapeIntervalSeconds,omitempty"`
PrometheusTargets map[string]AlloyPrometheusTarget `json:"prometheusTargets,omitempty"`
LokiTargets map[string]AlloyLokiTarget `json:"lokiTargets,omitempty"`
ControlProxyURL string `json:"controlProxyURL,omitempty"`
}
type AlloyBasicAuth struct {
Username string `json:"username,omitempty"`
Password string `json:"password,omitempty"`
}
// +kubebuilder:object:generate=true
type AlloyTarget struct {
URL string `json:"url,omitempty"`
BasicAuth AlloyBasicAuth `json:"basicAuth,omitempty"`
BearerToken string `json:"bearerToken,omitempty"`
Labels map[string]string `json:"labels,omitempty"`
UseControlProxy bool `json:"useControlProxy,omitempty"`
InsecureSkipVerify bool `json:"insecureSkipVerify,omitempty"`
CAPEM string `json:"caPEM,omitempty"`
CertPEM string `json:"certPEM,omitempty"`
}
// +kubebuilder:object:generate=true
type AlloyPrometheusTarget struct {
AlloyTarget `json:",inline"`
SendIntervalSeconds uint `json:"sendIntervalSeconds,omitempty"`
}
// +kubebuilder:object:generate=true
type AlloyLokiTarget struct {
AlloyTarget `json:",inline"`
}
func (a *AlloyConfig) Default() {
a.AgentScrapeIntervalSeconds = max(a.AgentScrapeIntervalSeconds, 15)
a.UnixScrapeIntervalSeconds = max(a.UnixScrapeIntervalSeconds, 15)
for _, t := range a.PrometheusTargets {
t.SendIntervalSeconds = max(t.SendIntervalSeconds, 15)
}
}
func (a *AlloyConfig) Validate() error {
for name := range a.PrometheusTargets {
if !alloyLabel.MatchString(name) {
return errors.Errorf("prometheus target name %q isn't valid", name)
}
}
for name := range a.LokiTargets {
if !alloyLabel.MatchString(name) {
return errors.Errorf("loki target name %q isn't valid", name)
}
}
return nil
}