/
install.go
188 lines (171 loc) · 5.98 KB
/
install.go
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package service
import (
"context"
"fmt"
"os"
"strings"
"github.com/kyma-incubator/reconciler/pkg/model"
"github.com/kyma-incubator/reconciler/pkg/reconciler"
"github.com/kyma-incubator/reconciler/pkg/reconciler/chart"
"github.com/kyma-incubator/reconciler/pkg/reconciler/kubernetes"
"github.com/pkg/errors"
"go.uber.org/zap"
k8serr "k8s.io/apimachinery/pkg/api/errors"
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/client-go/dynamic"
"k8s.io/client-go/tools/clientcmd"
)
type Install struct {
logger *zap.SugaredLogger
}
func NewInstall(logger *zap.SugaredLogger) *Install {
return &Install{logger: logger}
}
//go:generate mockery --name=Operation --output=mocks --outpkg=mocks --case=underscore
type Operation interface {
Invoke(ctx context.Context, chartProvider chart.Provider, model *reconciler.Task, kubeClient kubernetes.Client) error
}
func (r *Install) Invoke(ctx context.Context, chartProvider chart.Provider, task *reconciler.Task, kubeClient kubernetes.Client) error {
var err error
var manifest string
if task.Component == model.CRDComponent {
manifest, err = r.renderCRDs(chartProvider, task)
} else if task.Component != model.CleanupComponent { // TODO add better support for components that do not have manifests
manifest, err = r.renderManifest(chartProvider, task)
}
if err != nil {
return err
}
if task.Type == model.OperationTypeDelete {
resources, err := kubeClient.Delete(ctx, manifest, task.Namespace)
if err == nil {
r.logger.Debugf("Deletion of manifest finished successfully: %d resources deleted", len(resources))
} else {
r.logger.Warnf("Failed to delete manifests on target cluster: %s", err)
return err
}
} else {
if task.Component == model.CleanupComponent {
return nil
}
resources, err := kubeClient.Deploy(ctx, manifest, task.Namespace,
&LabelsInterceptor{
Version: task.Version,
},
&AnnotationsInterceptor{},
&ServicesInterceptor{
kubeClient: kubeClient,
},
&PVCInterceptor{
kubeClient: kubeClient,
logger: r.logger,
},
newClusterWideResourceInterceptor(),
&NamespaceInterceptor{},
&FinalizerInterceptor{
kubeClient: kubeClient,
interceptableKinds: []string{
"LogPipeline",
"LogParser",
"OAuth2Client",
},
},
)
if err == nil {
r.logger.Debugf("Deployment of manifest finished successfully: %d resources deployed", len(resources))
} else {
r.logger.Warnf("Failed to deploy manifests on target cluster: %s", err)
return err
}
}
return nil
}
func (r *Install) renderManifest(chartProvider chart.Provider, model *reconciler.Task) (string, error) {
component := chart.NewComponentBuilder(model.Version, model.Component).
WithProfile(model.Profile).
WithNamespace(model.Namespace).
WithConfiguration(model.Configuration).
WithURL(model.URL).
Build()
//get manifest of component
chartManifest, err := chartProvider.RenderManifest(component)
if err != nil {
msg := fmt.Sprintf("Failed to get manifest for component '%s' in Kyma version '%s'",
model.Component, model.Version)
if model.URL != "" {
msg += fmt.Sprintf(" using repository '%s' ",
model.URL)
}
r.logger.Errorf("%s: %s", msg, err)
return "", errors.Wrap(err, msg)
}
return chartManifest.Manifest, nil
}
func (r *Install) renderCRDs(chartProvider chart.Provider, model *reconciler.Task) (string, error) {
var crdManifests []*chart.Manifest
var err error
var skippedComps = r.skippedComps(model)
if r.ignoreIstioCRD(model) {
r.logger.Infof("Istio CRDs will be ignored from reconciliation (correlation-ID: %s)", model.CorrelationID)
skippedComps = append(skippedComps, "istio")
}
crdManifests, err = chartProvider.RenderCRDFiltered(model.Version, skippedComps)
if err != nil {
msg := fmt.Sprintf("Failed to get CRD manifests for Kyma version '%s'", model.Version)
r.logger.Errorf("%s: %s", msg, err)
return "", errors.Wrap(err, msg)
}
return chart.MergeManifests(crdManifests...), nil
}
func (r *Install) ignoreIstioCRD(task *reconciler.Task) bool {
restConfig, err := clientcmd.NewClientConfigFromBytes([]byte(task.Kubeconfig))
if err != nil {
r.logger.Warnf("Failed to create K8s REST client to check for migrated Istio CRD: %s", err)
return true
}
clientConfig, err := restConfig.ClientConfig()
if err != nil {
r.logger.Warnf("Failed to create K8s client config to check for migrated Istio CRD: %s", err)
return true
}
kubeClient, err := dynamic.NewForConfig(clientConfig)
if err != nil {
r.logger.Warnf("Failed to create K8s kube client to check for migrated Istio CRD: %s", err)
return true
}
//check which of the configured CRDs exist on the cluster
group := "operator.kyma-project.io"
version := "v1alpha2"
kind := "istios"
gvr := schema.GroupVersionResource{
Group: group,
Version: version,
Resource: kind,
}
_, err = kubeClient.Resource(gvr).List(context.Background(), v1.ListOptions{})
if err == nil {
r.logger.Infof("Found obviously migrated Istio CRD '%s.%s:%s'", kind, group, version)
return true
} else if !k8serr.IsNotFound(err) {
r.logger.Errorf("Failed to retrieve CRD '%s.%s:%s': %s", kind, group, version, err)
return true
}
return false
}
func (r *Install) skippedComps(task *reconciler.Task) []string {
envVars := os.Environ()
skippedComps := []string{}
//Search for skipped components by checking all env-vars
for _, envVar := range envVars {
envPair := strings.SplitN(envVar, "=", 2)
//extract the component name from the env-var and append it to the slice of skippedComps
if strings.HasPrefix(envPair[0], model.SkippedComponentEnvVarPrefix) && (envPair[1] == "1" || strings.ToLower(envPair[1]) == "true") {
compNameRaw := strings.Replace(envPair[0], model.SkippedComponentEnvVarPrefix, "", 1)
compName := strings.ToLower(strings.ReplaceAll(compNameRaw, "_", "-"))
skippedComps = append(skippedComps, compName)
r.logger.Infof("%s CRDs will be ignored from reconciliation (skipped by env-var, correlation-ID: %s)", compName, task.CorrelationID)
}
}
return skippedComps
}