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Take over prometheus agent remote write config from PMO.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| package password | ||
|
|
||
| import ( | ||
| "crypto/rand" | ||
| "encoding/hex" | ||
| ) | ||
|
|
||
| type Manager interface { | ||
| GeneratePassword(length int) (string, error) | ||
| } | ||
|
|
||
| type SimpleManager struct { | ||
| } | ||
|
|
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| func (m SimpleManager) GeneratePassword(length int) (string, error) { | ||
| bytes := make([]byte, length) | ||
| if _, err := rand.Read(bytes); err != nil { | ||
| return "", err | ||
| } | ||
| return hex.EncodeToString(bytes), nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| package prometheusagent | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net" | ||
|
|
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| "github.com/pkg/errors" | ||
| clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1" | ||
|
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| "github.com/giantswarm/observability-operator/pkg/monitoring/mimir/querier" | ||
| "github.com/giantswarm/observability-operator/pkg/monitoring/prometheusagent/shards" | ||
| ) | ||
|
|
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| func getPrometheusAgentRemoteWriteConfigName(cluster *clusterv1.Cluster) string { | ||
| return fmt.Sprintf("%s-remote-write-config", cluster.Name) | ||
| } | ||
|
|
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| func getServicePriority(cluster *clusterv1.Cluster) string { | ||
| if servicePriority, ok := cluster.GetLabels()[servicePriorityLabel]; ok && servicePriority != "" { | ||
| return servicePriority | ||
| } | ||
| return defaultServicePriority | ||
| } | ||
|
|
||
| // We want to compute the number of shards based on the number of nodes. | ||
| func getShardsCountForCluster(ctx context.Context, cluster *clusterv1.Cluster, currentShardCount int) (int, error) { | ||
| headSeries, err := querier.QueryTSDBHeadSeries(ctx, cluster.Name) | ||
| if err != nil { | ||
| // If prometheus is not accessible (for instance, not running because this is a new cluster, we check if prometheus is accessible) | ||
| var dnsError *net.DNSError | ||
| if errors.As(err, &dnsError) { | ||
| return shards.ComputeShards(currentShardCount, defaultShards), nil | ||
| } | ||
| return 0, errors.WithStack(err) | ||
| } | ||
| return shards.ComputeShards(currentShardCount, headSeries), nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| package prometheusagent | ||
|
|
||
| import ( | ||
| "gopkg.in/yaml.v2" | ||
|
|
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| "github.com/pkg/errors" | ||
| corev1 "k8s.io/api/core/v1" | ||
|
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| "github.com/giantswarm/observability-operator/pkg/monitoring/prometheusagent/remotewrite" | ||
| ) | ||
|
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| func readCurrentShardsFromConfig(configMap corev1.ConfigMap) (int, error) { | ||
| remoteWriteConfig := remotewrite.RemoteWriteConfig{} | ||
| err := yaml.Unmarshal([]byte(configMap.Data["values"]), &remoteWriteConfig) | ||
| if err != nil { | ||
| return 0, errors.WithStack(err) | ||
| } | ||
|
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| return remoteWriteConfig.PrometheusAgentConfig.Shards, nil | ||
| } | ||
|
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| func readRemoteWritePasswordFromSecret(secret corev1.Secret) (string, error) { | ||
| remoteWriteConfig := remotewrite.RemoteWriteConfig{} | ||
| err := yaml.Unmarshal(secret.Data["values"], &remoteWriteConfig) | ||
| if err != nil { | ||
| return "", errors.WithStack(err) | ||
| } | ||
|
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| for _, rw := range remoteWriteConfig.PrometheusAgentConfig.RemoteWrite { | ||
| if rw.Name == "prometheus-meta-operator" { | ||
| return rw.Password, nil | ||
| } | ||
| } | ||
|
|
||
| return "", errors.New("remote write password not found in secret") | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| package prometheusagent | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
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| clusterv1 "sigs.k8s.io/cluster-api/api/v1beta1" | ||
| ) | ||
|
|
||
| func getPrometheusAgentRemoteWriteSecretName(cluster *clusterv1.Cluster) string { | ||
| return fmt.Sprintf("%s-remote-write-secret", cluster.Name) | ||
| } |
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