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fix application-connector-validator caching #17957

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Aug 18, 2023
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Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,10 @@

# Binaries
/centralapplicationconnectivityvalidator
bin

# Output of the go coverage tool, specifically when used with LiteIDE
*.out

# Software licenses
/licenses
29 changes: 29 additions & 0 deletions components/central-application-connectivity-validator/Makefile
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,9 @@ APP_NAME = central-application-connectivity-validator
APP_PATH = components/$(APP_NAME)
SCRIPTS_DIR = $(realpath $(shell pwd)/../..)/common/makefiles

# ENVTEST_K8S_VERSION refers to the version of kubebuilder assets to be downloaded by envtest binary.
ENVTEST_K8S_VERSION = 1.25.0

override ENTRYPOINT = cmd/centralapplicationconnectivityvalidator/

include $(SCRIPTS_DIR)/generic-make-go.mk
Expand All @@ -14,3 +17,29 @@ release:
.PHONY: path-to-referenced-charts
path-to-referenced-charts:
@echo "resources/application-connector"

## Location to install dependencies to
LOCALBIN ?= $(shell pwd)/bin
$(LOCALBIN):
mkdir -p $(LOCALBIN)

COVERPROFILE ?= cover.out

.PHONY: fmt
fmt: ## Run go fmt against code.
go fmt ./...

.PHONY: vet
vet: ## Run go vet against code.
go vet ./...

ENVTEST ?= $(LOCALBIN)/setup-envtest

.PHONY: envtest
envtest: $(ENVTEST) ## Download envtest-setup locally if necessary.
$(ENVTEST): $(LOCALBIN)
test -s $(LOCALBIN)/setup-envtest || GOBIN=$(LOCALBIN) go install sigs.k8s.io/controller-runtime/tools/setup-envtest@latest

.PHONY: test
test: fmt vet envtest ## Run tests.
KUBEBUILDER_ASSETS="$(shell $(ENVTEST) use $(ENVTEST_K8S_VERSION) -p path)" go test ./... -coverprofile $(COVERPROFILE)
Original file line number Diff line number Diff line change
Expand Up @@ -87,8 +87,8 @@ func main() {
log.WithContext().With("options", options).Info("Starting Validation Proxy.")

idCache := cache.New(
time.Duration(options.cacheExpirationSeconds)*time.Second,
time.Duration(options.cacheCleanupIntervalSeconds)*time.Second,
cache.NoExpiration,
cache.NoExpiration,
)
idCache.OnEvicted(func(key string, i interface{}) {
log.WithContext().
Expand Down Expand Up @@ -127,7 +127,14 @@ func main() {
log.WithContext().Error("Unable to start manager: %s", err.Error())
os.Exit(1)
}
if err = controller.NewController(log, mgr.GetClient(), idCache, options.appNamePlaceholder, options.eventingPathPrefixV1, options.eventingPathPrefixV2, options.eventingPathPrefixEvents).SetupWithManager(mgr); err != nil {
if err = controller.NewController(
log,
mgr.GetClient(),
idCache,
options.appNamePlaceholder,
options.eventingPathPrefixV1,
options.eventingPathPrefixV2,
options.eventingPathPrefixEvents).SetupWithManager(mgr); err != nil {
log.WithContext().Error("Unable to create reconciler: %s", err.Error())
os.Exit(1)
}
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -3,27 +3,23 @@ package main
import (
"flag"
"fmt"
"github.com/vrischmann/envconfig"
"k8s.io/client-go/tools/clientcmd"
"os"
"strings"
"time"

"k8s.io/client-go/tools/clientcmd"

"github.com/vrischmann/envconfig"
)

type args struct {
proxyPort int
externalAPIPort int
eventingPathPrefixV1 string
eventingPathPrefixV2 string
eventingPublisherHost string
eventingPathPrefixEvents string
eventingDestinationPath string
appNamePlaceholder string
cacheExpirationSeconds int
cacheCleanupIntervalSeconds int
syncPeriod time.Duration
proxyPort int
externalAPIPort int
eventingPathPrefixV1 string
eventingPathPrefixV2 string
eventingPublisherHost string
eventingPathPrefixEvents string
eventingDestinationPath string
appNamePlaceholder string
syncPeriod time.Duration
}

type config struct {
Expand All @@ -45,8 +41,6 @@ func parseOptions() (*options, error) {
eventingDestinationPath := flag.String("eventingDestinationPath", "/publish", "Path of the destination of the requests to the Eventing")
eventingPathPrefixEvents := flag.String("eventingPathPrefixEvents", "/events", "Prefix of paths that is directed to the Cloud Events based Eventing")
appNamePlaceholder := flag.String("appNamePlaceholder", "%%APP_NAME%%", "Path URL placeholder used for an application name")
cacheExpirationSeconds := flag.Int("cacheExpirationSeconds", 90, "Expiration time for client IDs stored in cache expressed in seconds")
cacheCleanupIntervalSeconds := flag.Int("cacheCleanupIntervalSeconds", 20, "Clean up interval controls how often the client IDs stored in cache are removed")
syncPeriod := flag.Duration("syncPeriod", 45*time.Second, "Sync period in seconds how often controller should periodically reconcile Application resource.")

flag.Parse()
Expand All @@ -58,17 +52,15 @@ func parseOptions() (*options, error) {

return &options{
args: args{
proxyPort: *proxyPort,
externalAPIPort: *externalAPIPort,
eventingPathPrefixV1: *eventingPathPrefixV1,
eventingPathPrefixV2: *eventingPathPrefixV2,
eventingPublisherHost: *eventingPublisherHost,
eventingPathPrefixEvents: *eventingPathPrefixEvents,
eventingDestinationPath: *eventingDestinationPath,
appNamePlaceholder: *appNamePlaceholder,
cacheExpirationSeconds: *cacheExpirationSeconds,
cacheCleanupIntervalSeconds: *cacheCleanupIntervalSeconds,
syncPeriod: *syncPeriod,
proxyPort: *proxyPort,
externalAPIPort: *externalAPIPort,
eventingPathPrefixV1: *eventingPathPrefixV1,
eventingPathPrefixV2: *eventingPathPrefixV2,
eventingPublisherHost: *eventingPublisherHost,
eventingPathPrefixEvents: *eventingPathPrefixEvents,
eventingDestinationPath: *eventingDestinationPath,
appNamePlaceholder: *appNamePlaceholder,
syncPeriod: *syncPeriod,
},
config: c,
}, nil
Expand All @@ -80,13 +72,11 @@ func (o *options) String() string {
"--eventingPathPrefixEvents=%s --eventingPublisherHost=%s "+
"--eventingDestinationPath=%s "+
"--appNamePlaceholder=%s "+
"--cacheExpirationSeconds=%d --cacheCleanupIntervalSeconds=%d "+
"--syncPeriod=%d APP_LOG_FORMAT=%s APP_LOG_LEVEL=%s KUBECONFIG=%s",
o.proxyPort, o.externalAPIPort,
o.eventingPathPrefixV1, o.eventingPathPrefixV2, o.eventingPathPrefixEvents,
o.eventingPublisherHost, o.eventingDestinationPath,
o.appNamePlaceholder,
o.cacheExpirationSeconds, o.cacheCleanupIntervalSeconds,
o.syncPeriod, o.LogFormat, o.LogLevel, os.Getenv(clientcmd.RecommendedConfigPathEnvVar))
}

Expand All @@ -103,8 +93,5 @@ func (o *options) validate() error {
if !strings.Contains(o.eventingPathPrefixEvents, o.appNamePlaceholder) {
return fmt.Errorf("eventingPathPrefixEvents '%s' should contain appNamePlaceholder '%s'", o.eventingPathPrefixEvents, o.appNamePlaceholder)
}
if o.syncPeriod > time.Duration(o.cacheExpirationSeconds)*time.Second {
return fmt.Errorf("syncPeriod '%v' greater than cacheExpirationSeconds '%v' will cause unwanted cache eviction", o.syncPeriod, o.cacheExpirationSeconds)
}
return nil
}
Original file line number Diff line number Diff line change
Expand Up @@ -64,14 +64,13 @@ func TestOptionsValidation(t *testing.T) {
},
},
{
name: "syncPeriod greater than cacheExpirationSeconds",
valid: false,
name: "syncPeriod is set",
valid: true,
args: args{
appNamePlaceholder: "%%APP_NAME%%",
eventingPathPrefixV1: "/%%APP_NAME%%/v1/events",
eventingPathPrefixV2: "/%%APP_NAME%%/v2/events",
eventingPathPrefixEvents: "/%%APP_NAME%%/events",
cacheExpirationSeconds: 120,
syncPeriod: 121 * time.Second,
},
},
Expand Down
15 changes: 10 additions & 5 deletions components/central-application-connectivity-validator/go.mod
Original file line number Diff line number Diff line change
Expand Up @@ -7,10 +7,13 @@ require (
github.com/kyma-project/kyma/common/logging v0.0.0-20230130154909-4c81ab2cee61
github.com/kyma-project/kyma/components/central-application-gateway v0.0.0-20230130154909-4c81ab2cee61
github.com/oklog/run v1.1.0
github.com/onsi/ginkgo/v2 v2.11.0
github.com/onsi/gomega v1.27.8
github.com/patrickmn/go-cache v2.1.0+incompatible
github.com/stretchr/testify v1.8.4
github.com/vrischmann/envconfig v1.3.0
go.uber.org/zap v1.24.0
k8s.io/api v0.26.7
k8s.io/apimachinery v0.27.4
k8s.io/client-go v0.26.7
sigs.k8s.io/controller-runtime v0.14.6
Expand All @@ -24,17 +27,19 @@ require (
github.com/evanphx/json-patch v4.12.0+incompatible // indirect
github.com/evanphx/json-patch/v5 v5.6.0 // indirect
github.com/fsnotify/fsnotify v1.6.0 // indirect
github.com/go-logr/logr v1.2.3 // indirect
github.com/go-logr/logr v1.2.4 // indirect
github.com/go-logr/zapr v1.2.3 // indirect
github.com/go-openapi/jsonpointer v0.19.6 // indirect
github.com/go-openapi/jsonreference v0.20.1 // indirect
github.com/go-openapi/swag v0.22.3 // indirect
github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
github.com/gogo/protobuf v1.3.2 // indirect
github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
github.com/golang/protobuf v1.5.3 // indirect
github.com/google/gnostic v0.5.7-v3refs // indirect
github.com/google/go-cmp v0.5.9 // indirect
github.com/google/gofuzz v1.1.0 // indirect
github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1 // indirect
github.com/google/uuid v1.3.0 // indirect
github.com/imdario/mergo v0.3.12 // indirect
github.com/josharian/intern v1.0.0 // indirect
Expand All @@ -54,19 +59,19 @@ require (
github.com/spf13/pflag v1.0.5 // indirect
go.uber.org/atomic v1.7.0 // indirect
go.uber.org/multierr v1.6.0 // indirect
golang.org/x/net v0.8.0 // indirect
golang.org/x/net v0.10.0 // indirect
golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b // indirect
golang.org/x/sys v0.6.0 // indirect
golang.org/x/sys v0.9.0 // indirect
golang.org/x/term v0.6.0 // indirect
golang.org/x/text v0.8.0 // indirect
golang.org/x/text v0.9.0 // indirect
golang.org/x/time v0.3.0 // indirect
golang.org/x/tools v0.9.3 // indirect
gomodules.xyz/jsonpatch/v2 v2.2.0 // indirect
google.golang.org/appengine v1.6.7 // indirect
google.golang.org/protobuf v1.28.1 // indirect
gopkg.in/inf.v0 v0.9.1 // indirect
gopkg.in/yaml.v2 v2.4.0 // indirect
gopkg.in/yaml.v3 v3.0.1 // indirect
k8s.io/api v0.26.7 // indirect
k8s.io/apiextensions-apiserver v0.26.1 // indirect
k8s.io/component-base v0.26.1 // indirect
k8s.io/klog/v2 v2.90.1 // indirect
Expand Down
19 changes: 13 additions & 6 deletions components/central-application-connectivity-validator/go.sum
Original file line number Diff line number Diff line change
Expand Up @@ -85,8 +85,8 @@ github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG
github.com/go-logfmt/logfmt v0.5.1/go.mod h1:WYhtIu8zTZfxdn5+rREduYbwxfcBr/Vr6KEVveWlfTs=
github.com/go-logr/logr v1.2.0/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-logr/logr v1.2.3 h1:2DntVwHkVopvECVRSlL5PSo9eG+cAkDCuckLubN+rq0=
github.com/go-logr/logr v1.2.3/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ=
github.com/go-logr/logr v1.2.4/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
github.com/go-logr/zapr v1.2.3 h1:a9vnzlIBPQBBkeaR9IuMUfmVOrQlkoC4YfPoFkX3T7A=
github.com/go-logr/zapr v1.2.3/go.mod h1:eIauM6P8qSvTw5o2ez6UEAfGjQKrxQTl5EoK+Qa2oG4=
github.com/go-openapi/jsonpointer v0.19.6 h1:eCs3fxoIi3Wh6vtgmLTOjdhSpiqphQ+DaPn38N2ZdrE=
Expand All @@ -96,7 +96,8 @@ github.com/go-openapi/jsonreference v0.20.1/go.mod h1:Bl1zwGIM8/wsvqjsOQLJ/SH+En
github.com/go-openapi/swag v0.22.3 h1:yMBqmnQ0gyZvEb/+KzuWZOXgllrXT4SADYbvDaXHv/g=
github.com/go-openapi/swag v0.22.3/go.mod h1:UzaqsxGiab7freDnrUUra0MwWfN/q7tE4j+VcZ0yl14=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/go-task/slim-sprig v0.0.0-20210107165309-348f09dbbbc0 h1:p104kn46Q8WdvHunIJ9dAyjPVtrBPhSr3KT2yUst43I=
github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
Expand Down Expand Up @@ -159,6 +160,7 @@ github.com/google/pprof v0.0.0-20200229191704-1ebb73c60ed3/go.mod h1:ZgVRPoUq/hf
github.com/google/pprof v0.0.0-20200430221834-fc25d7d30c6d/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hfqzAqh7sHMqb3I9Rq5C59dIz2SbBwJ4eM=
github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1 h1:K6RDEckDVWvDI9JAJYCmNdQXq6neHJOYx3V6jnqNEec=
github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
github.com/google/uuid v1.3.0 h1:t6JiXgmwXMjEs8VusXIJk2BXHsn+wx8BZdTaoZ5fu7I=
github.com/google/uuid v1.3.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
Expand All @@ -169,6 +171,7 @@ github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB7
github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
github.com/ianlancetaylor/demangle v0.0.0-20200824232613-28f6c0f3b639/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
github.com/imdario/mergo v0.3.12 h1:b6R2BslTbIEToALKP7LxUvijTsNI9TAe80pLWN2g/HU=
github.com/imdario/mergo v0.3.12/go.mod h1:jmQim1M+e3UYxmgPu/WyfjB3N3VflVyUjjjwH0dnCYA=
github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
Expand Down Expand Up @@ -220,8 +223,10 @@ github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRW
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
github.com/oklog/run v1.1.0 h1:GEenZ1cK0+q0+wsJew9qUg/DyD8k3JzYsZAi5gYi2mA=
github.com/oklog/run v1.1.0/go.mod h1:sVPdnTZT1zYwAJeCMu2Th4T21pA3FPOQRfWjQlk7DVU=
github.com/onsi/ginkgo/v2 v2.9.1 h1:zie5Ly042PD3bsCvsSOPvRnFwyo3rKe64TJlD6nu0mk=
github.com/onsi/gomega v1.27.4 h1:Z2AnStgsdSayCMDiCU42qIz+HLqEPcgiOCXjAU/w+8E=
github.com/onsi/ginkgo/v2 v2.11.0 h1:WgqUCUt/lT6yXoQ8Wef0fsNn5cAuMK7+KT9UFRz2tcU=
github.com/onsi/ginkgo/v2 v2.11.0/go.mod h1:ZhrRA5XmEE3x3rhlzamx/JJvujdZoJ2uvgI7kR0iZvM=
github.com/onsi/gomega v1.27.8 h1:gegWiwZjBsf2DgiSbf5hpokZ98JVDMcWkUiigk6/KXc=
github.com/onsi/gomega v1.27.8/go.mod h1:2J8vzI/s+2shY9XHRApDkdgPo1TKT7P2u6fXeJKFnNQ=
github.com/patrickmn/go-cache v2.1.0+incompatible h1:HRMgzkcYKYpi3C8ajMPV8OFXaaRUnok+kx1WdO15EQc=
github.com/patrickmn/go-cache v2.1.0+incompatible/go.mod h1:3Qf8kWWT7OJRJbdiICTKqZju1ZixQ/KpMGzzAfe6+WQ=
github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
Expand Down Expand Up @@ -333,6 +338,7 @@ golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzB
golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4=
golang.org/x/mod v0.10.0 h1:lFO9qtOdlre5W1jxS3r/4szv2/6iXxScdzjoBMXNhYk=
golang.org/x/net v0.8.0 h1:Zrh2ngAOFYneWTAIAPethzeaQLuHwhuBkuV6ZiRnUaQ=
golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
Expand Down Expand Up @@ -409,7 +415,8 @@ golang.org/x/tools v0.0.0-20200804011535-6c149bb5ef0d/go.mod h1:njjCfa9FT2d7l9Bc
golang.org/x/tools v0.0.0-20200825202427-b303f430e36d/go.mod h1:njjCfa9FT2d7l9Bc6FUM5FLjQPp3cFF28FI3qnDFljA=
golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
golang.org/x/tools v0.7.0 h1:W4OVu8VVOaIO0yzWMNdepAulS7YfoS3Zabrm8DOXXU4=
golang.org/x/tools v0.9.3 h1:Gn1I8+64MsuTb/HpH+LmQtNas23LhUVr3rYZ0eKuaMM=
golang.org/x/tools v0.9.3/go.mod h1:owI94Op576fPu3cIGQeHs3joujW/2Oc6MtlxbF5dfNc=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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