/
validation.go
81 lines (69 loc) · 2.64 KB
/
validation.go
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// Copyright 2019 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 schema
import (
"fmt"
"github.com/hashicorp/go-multierror"
"istio.io/istio/galley/pkg/config/analysis"
"istio.io/istio/galley/pkg/config/analysis/msg"
"istio.io/istio/pkg/config/resource"
"istio.io/istio/pkg/config/schema/collection"
"istio.io/istio/pkg/config/schema/collections"
)
// ValidationAnalyzer runs schema validation as an analyzer and reports any violations as messages
type ValidationAnalyzer struct {
s collection.Schema
}
var _ analysis.Analyzer = &ValidationAnalyzer{}
// AllValidationAnalyzers returns a slice with a validation analyzer for each Istio schema
// This automation comes with an assumption: that the collection names used by the schema match the metadata used by Galley components
func AllValidationAnalyzers() []analysis.Analyzer {
result := make([]analysis.Analyzer, 0)
collections.Istio.ForEach(func(s collection.Schema) (done bool) {
// Skip synthetic service entries
// See https://github.com/istio/istio/issues/17949
if s.Name() != collections.IstioNetworkingV1Alpha3SyntheticServiceentries.Name() {
result = append(result, &ValidationAnalyzer{s: s})
}
return
})
return result
}
// Metadata implements Analyzer
func (a *ValidationAnalyzer) Metadata() analysis.Metadata {
return analysis.Metadata{
Name: fmt.Sprintf("schema.ValidationAnalyzer.%s", a.s.Resource().Kind()),
Description: fmt.Sprintf("Runs schema validation as an analyzer on '%s' resources", a.s.Resource().Kind()),
Inputs: collection.Names{a.s.Name()},
}
}
// Analyze implements Analyzer
func (a *ValidationAnalyzer) Analyze(ctx analysis.Context) {
c := a.s.Name()
ctx.ForEach(c, func(r *resource.Instance) bool {
ns := r.Metadata.FullName.Namespace
name := r.Metadata.FullName.Name
err := a.s.Resource().ValidateProto(string(name), string(ns), r.Message)
if err != nil {
if multiErr, ok := err.(*multierror.Error); ok {
for _, err := range multiErr.WrappedErrors() {
ctx.Report(c, msg.NewSchemaValidationError(r, err))
}
} else {
ctx.Report(c, msg.NewSchemaValidationError(r, err))
}
}
return true
})
}