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|
package metrics
import (
"github.com/prometheus/client_golang/prometheus"
)
// TODO: remove disk source metrics https://gitlab.com/gitlab-org/gitlab-pages/-/issues/382
var (
// DomainsServed counts the total number of sites served
DomainsServed = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "gitlab_pages_served_domains",
Help: "The number of sites served by this Pages app",
})
// DomainFailedUpdates counts the number of failed site updates
DomainFailedUpdates = prometheus.NewCounter(prometheus.CounterOpts{
Name: "gitlab_pages_domains_failed_total",
Help: "The total number of site updates that have failed since daemon start",
})
// DomainUpdates counts the number of site updates successfully processed
DomainUpdates = prometheus.NewCounter(prometheus.CounterOpts{
Name: "gitlab_pages_domains_updated_total",
Help: "The total number of site updates successfully processed since daemon start",
})
// DomainLastUpdateTime is the UNIX timestamp of the last update
DomainLastUpdateTime = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "gitlab_pages_last_domain_update_seconds",
Help: "UNIX timestamp of the last update",
})
// DomainsConfigurationUpdateDuration is the time it takes to update domains configuration from disk
DomainsConfigurationUpdateDuration = prometheus.NewGauge(prometheus.GaugeOpts{
Name: "gitlab_pages_domains_configuration_update_duration",
Help: "The time (in seconds) it takes to update domains configuration from disk",
})
// DomainsSourceCacheHit is the number of GitLab API call cache hits
DomainsSourceCacheHit = prometheus.NewCounter(prometheus.CounterOpts{
Name: "gitlab_pages_domains_source_cache_hit",
Help: "The number of GitLab domains API cache hits",
})
// DomainsSourceCacheMiss is the number of GitLab API call cache misses
DomainsSourceCacheMiss = prometheus.NewCounter(prometheus.CounterOpts{
Name: "gitlab_pages_domains_source_cache_miss",
Help: "The number of GitLab domains API cache misses",
})
// DomainsSourceFailures is the number of GitLab API calls that failed
DomainsSourceFailures = prometheus.NewCounter(prometheus.CounterOpts{
Name: "gitlab_pages_domains_source_failures_total",
Help: "The number of GitLab API calls that failed",
})
// ServerlessRequests measures the amount of serverless invocations
ServerlessRequests = prometheus.NewCounter(prometheus.CounterOpts{
Name: "gitlab_pages_serverless_requests",
Help: "The number of total GitLab Serverless requests served",
})
// ServerlessLatency records serverless serving roundtrip duration
ServerlessLatency = prometheus.NewHistogram(prometheus.HistogramOpts{
Name: "gitlab_pages_serverless_latency",
Help: "Serverless serving roundtrip duration",
})
// DomainsSourceAPIReqTotal is the number of calls made to the GitLab API that returned a 4XX error
DomainsSourceAPIReqTotal = prometheus.NewCounterVec(prometheus.CounterOpts{
Name: "gitlab_pages_domains_source_api_requests_total",
Help: "The number of GitLab domains API calls with different status codes",
}, []string{"status_code"})
// DomainsSourceAPICallDuration is the time it takes to get a response from the GitLab API in seconds
DomainsSourceAPICallDuration = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Name: "gitlab_pages_domains_source_api_call_duration",
Help: "The time (in seconds) it takes to get a response from the GitLab domains API",
}, []string{"status_code"})
// VFSServingFileSize metric for file size serving. Includes a vfs_name (local or zip).
VFSServingFileSize = prometheus.NewHistogramVec(prometheus.HistogramOpts{
Name: "gitlab_pages_disk_serving_file_size_bytes",
Help: "The size in bytes for each file that has been served",
// From 1B to 100MB in *10 increments (1 10 100 1,000 10,000 100,000 1'000,000 10'000,000 100'000,000)
Buckets: prometheus.ExponentialBuckets(1.0, 10.0, 9),
}, []string{"vfs_name"})
// ServingTime metric for time taken to find a file serving it or not found.
ServingTime = prometheus.NewHistogram(prometheus.HistogramOpts{
Name: "gitlab_pages_serving_time_seconds",
Help: "The time (in seconds) taken to serve a file",
Buckets: []float64{0.1, 0.5, 1, 2.5, 5, 10, 60, 180},
})
// VFSOperations metric for VFS operations (lstat, readlink, open)
VFSOperations = prometheus.NewCounterVec(prometheus.CounterOpts{
Name: "gitlab_pages_vfs_operations_total",
Help: "The number of VFS operations",
}, []string{"vfs_name", "operation", "success"})
// ObjectStorageBackendReqTotal is the number of requests made to Object Storage by zip file serving
// Could be bigger than the number of pages served.
ObjectStorageBackendReqTotal = prometheus.NewCounterVec(prometheus.CounterOpts{
Name: "gitlab_pages_object_storage_backend_requests_total",
Help: "The number of requests made to Object Storage by zip file serving with different status codes." +
"Could be bigger than the number of requests served",
}, []string{"status_code"})
// ObjectStorageBackendReqDuration is the time it takes to get a response from Object Storage in seconds for zip file servings
ObjectStorageBackendReqDuration = prometheus.NewGaugeVec(prometheus.GaugeOpts{
Name: "gitlab_pages_object_storage_backend_requests_duration",
Help: "The time (in seconds) it takes to get a response from the Object Storage provider for zip file serving",
}, []string{"status_code"})
)
// MustRegister collectors with the Prometheus client
func MustRegister() {
prometheus.MustRegister(
DomainsServed,
DomainFailedUpdates,
DomainUpdates,
DomainLastUpdateTime,
DomainsConfigurationUpdateDuration,
DomainsSourceCacheHit,
DomainsSourceCacheMiss,
DomainsSourceAPIReqTotal,
DomainsSourceAPICallDuration,
DomainsSourceFailures,
ServerlessRequests,
ServerlessLatency,
VFSServingFileSize,
ServingTime,
VFSOperations,
ObjectStorageBackendReqTotal,
ObjectStorageBackendReqDuration,
)
}
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