| // Copyright Istio Authors |
| // |
| // 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 wasm |
| |
| import ( |
| "istio.io/pkg/monitoring" |
| ) |
| |
| // Const strings for label value. |
| const ( |
| // For remote fetch metric. |
| fetchSuccess = "success" |
| downloadFailure = "download_failure" |
| checksumMismatch = "checksum_mismatched" |
| |
| // For Wasm conversion metric. |
| conversionSuccess = "success" |
| noRemoteLoad = "no_remote_load" |
| marshalFailure = "marshal_failure" |
| fetchFailure = "fetch_failure" |
| missRemoteFetchHint = "miss_remote_fetch_hint" |
| ) |
| |
| var ( |
| hitTag = monitoring.MustCreateLabel("hit") |
| resultTag = monitoring.MustCreateLabel("result") |
| |
| wasmCacheEntries = monitoring.NewGauge( |
| "wasm_cache_entries", |
| "number of Wasm remote fetch cache entries.", |
| ) |
| |
| wasmCacheLookupCount = monitoring.NewSum( |
| "wasm_cache_lookup_count", |
| "number of Wasm remote fetch cache lookups.", |
| monitoring.WithLabels(hitTag), |
| ) |
| |
| wasmRemoteFetchCount = monitoring.NewSum( |
| "wasm_remote_fetch_count", |
| "number of Wasm remote fetches and results, including success, download failure, and checksum mismatch.", |
| monitoring.WithLabels(resultTag), |
| ) |
| |
| wasmConfigConversionCount = monitoring.NewSum( |
| "wasm_config_conversion_count", |
| "number of Wasm config conversion count and results, including success, no remote load, marshal failure, remote fetch failure, miss remote fetch hint.", |
| monitoring.WithLabels(resultTag), |
| ) |
| |
| wasmConfigConversionDuration = monitoring.NewDistribution( |
| "wasm_config_conversion_duration", |
| "Total time in milliseconds istio-agent spends on converting remote load in Wasm config.", |
| []float64{1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096, 8192, 16384}, |
| ) |
| ) |
| |
| func init() { |
| monitoring.MustRegister( |
| wasmCacheEntries, |
| wasmCacheLookupCount, |
| wasmRemoteFetchCount, |
| wasmConfigConversionCount, |
| wasmConfigConversionDuration, |
| ) |
| } |