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add random filter (#4527)

Browse source 
* add random filter

Signed-off-by: Anurag <contact.anurag7@gmail.com>

* update go.mod file

Signed-off-by: Anurag <contact.anurag7@gmail.com>

* update go.sum

Signed-off-by: ShutingZhao <shuting@nirmata.com>

* linter fix

Signed-off-by: ShutingZhao <shuting@nirmata.com>

Signed-off-by: Anurag <contact.anurag7@gmail.com>
Signed-off-by: ShutingZhao <shuting@nirmata.com>
Co-authored-by: ShutingZhao <shuting@nirmata.com>
This commit is contained in:
Anurag 2022-09-07 21:52:30 +05:30 • committed by GitHub
parent 9b522cb757
commit 560cec329e
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3 changed files with 32 additions and 0 deletions
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2
go.mod
View file

@ -61,6 +61,7 @@ require (
require (
github.com/jmoiron/jsonq v0.0.0-20150511023944-e874b168d07e
github.com/zach-klippenstein/goregen v0.0.0-20160303162051-795b5e3961ea
go.opentelemetry.io/otel v1.7.0
go.opentelemetry.io/otel/exporters/otlp/otlpmetric v0.30.0
go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v0.30.0
@ -179,6 +180,7 @@ require (
github.com/gogo/protobuf v1.3.2 // indirect
github.com/golang-jwt/jwt v3.2.2+incompatible // indirect
github.com/golang-jwt/jwt/v4 v4.4.2 // indirect
github.com/google/gxui v0.0.0-20151028112939-f85e0a97b3a4 // indirect
github.com/golang/glog v1.0.0 // indirect
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
github.com/golang/mock v1.6.0 // indirect

3
go.sum
View file

@ -1283,6 +1283,7 @@ github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/
github.com/google/gofuzz v1.1.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
github.com/google/gxui v0.0.0-20151028112939-f85e0a97b3a4/go.mod h1:Pw1H1OjSNHiqeuxAduB1BKYXIwFtsyrY47nEqSgEiCM=
github.com/google/licenseclassifier v0.0.0-20190926221455-842c0d70d702/go.mod h1:qsqn2hxC+vURpyBRygGUuinTO42MFRLcsmQ/P8v94+M=
github.com/google/licenseclassifier v0.0.0-20210325184830-bb04aff29e72/go.mod h1:qsqn2hxC+vURpyBRygGUuinTO42MFRLcsmQ/P8v94+M=
github.com/google/mako v0.0.0-20190821191249-122f8dcef9e3/go.mod h1:YzLcVlL+NqWnmUEPuhS1LxDDwGO9WNbVlEXaF4IH35g=
@ -2530,6 +2531,8 @@ github.com/yuin/goldmark v1.4.1/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1
github.com/yvasiyarov/go-metrics v0.0.0-20140926110328-57bccd1ccd43/go.mod h1:aX5oPXxHm3bOH+xeAttToC8pqch2ScQN/JoXYupl6xs=
github.com/yvasiyarov/gorelic v0.0.0-20141212073537-a9bba5b9ab50/go.mod h1:NUSPSUX/bi6SeDMUh6brw0nXpxHnc96TguQh0+r/ssA=
github.com/yvasiyarov/newrelic_platform_go v0.0.0-20140908184405-b21fdbd4370f/go.mod h1:GlGEuHIJweS1mbCqG+7vt2nvWLzLLnRHbXz5JKd/Qbg=
github.com/zach-klippenstein/goregen v0.0.0-20160303162051-795b5e3961ea h1:CyhwejzVGvZ3Q2PSbQ4NRRYn+ZWv5eS1vlaEusT+bAI=
github.com/zach-klippenstein/goregen v0.0.0-20160303162051-795b5e3961ea/go.mod h1:eNr558nEUjP8acGw8FFjTeWvSgU1stO7FAO6eknhHe4=
github.com/zalando/go-keyring v0.1.0/go.mod h1:RaxNwUITJaHVdQ0VC7pELPZ3tOWn13nr0gZMZEhpVU0=
github.com/zalando/go-keyring v0.1.1/go.mod h1:OIC+OZ28XbmwFxU/Rp9V7eKzZjamBJwRzC8UFJH9+L8=
github.com/zeebo/errs v1.2.2 h1:5NFypMTuSdoySVTqlNs1dEoU21QVamMQJxW/Fii5O7g=

27
pkg/engine/jmespath/functions.go
View file

@ -5,6 +5,7 @@ import (
"encoding/json"
"errors"
"fmt"
"log"
"path/filepath"
"reflect"
"regexp"
@ -17,6 +18,7 @@ import (
"github.com/blang/semver/v4"
gojmespath "github.com/jmespath/go-jmespath"
wildcard "github.com/kyverno/kyverno/pkg/utils/wildcard"
regen "github.com/zach-klippenstein/goregen"
"sigs.k8s.io/yaml"
)
@ -65,6 +67,7 @@ var (
parseYAML = "parse_yaml"
items = "items"
objectFromLists = "object_from_lists"
random = "random"
)
const (
@ -424,6 +427,17 @@ func GetFunctions() []*FunctionEntry {
ReturnType: []JpType{JpObject},
Note: "converts a pair of lists containing keys and values to an object",
},
{
Entry: &gojmespath.FunctionEntry{
Name: random,
Arguments: []ArgSpec{
{Types: []JpType{JpString}},
},
Handler: jpRandom,
},
ReturnType: []JpType{JpString},
Note: "Generates a random sequence of characters",
},
}
}
@ -938,3 +952,16 @@ func validateArg(f string, arguments []interface{}, index int, expectedType refl
return arg, nil
}
func jpRandom(arguments []interface{}) (interface{}, error) {
pattern := arguments[0].(string)
if pattern == "" {
return "", errors.New("no pattern provided")
}
ans, err := regen.Generate(pattern)
if err != nil {
fmt.Println("Invalid Pattern: ", err)
}
log.Println()
return ans, nil
}