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upgrade.go
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upgrade.go
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/*
Copyright 2021 The Dapr 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 kubernetes
import (
"fmt"
"net/http"
"os"
"time"
helm "helm.sh/helm/v3/pkg/action"
"k8s.io/helm/pkg/strvals"
"github.com/hashicorp/go-version"
"github.com/dapr/cli/pkg/print"
"github.com/dapr/cli/utils"
)
const operatorName = "dapr-operator"
var crds = []string{
"components",
"configuration",
"subscription",
"resiliency",
}
var crdsFullResources = []string{
"components.dapr.io",
"configurations.dapr.io",
"subscriptions.dapr.io",
"resiliencies.dapr.io",
}
type UpgradeConfig struct {
RuntimeVersion string
Args []string
Timeout uint
ImageRegistryURI string
}
func Upgrade(conf UpgradeConfig) error {
status, err := GetDaprResourcesStatus()
if err != nil {
return err
}
daprVersion := GetDaprVersion(status)
print.InfoStatusEvent(os.Stdout, "Dapr control plane version %s detected in namespace %s", daprVersion, status[0].Namespace)
helmConf, err := helmConfig(status[0].Namespace)
if err != nil {
return err
}
daprChart, err := daprChart(conf.RuntimeVersion, helmConf)
if err != nil {
return err
}
upgradeClient := helm.NewUpgrade(helmConf)
upgradeClient.ResetValues = true
upgradeClient.Namespace = status[0].Namespace
upgradeClient.CleanupOnFail = true
upgradeClient.Wait = true
upgradeClient.Timeout = time.Duration(conf.Timeout) * time.Second
print.InfoStatusEvent(os.Stdout, "Starting upgrade...")
mtls, err := IsMTLSEnabled()
if err != nil {
return err
}
var vals map[string]interface{}
var ca []byte
var issuerCert []byte
var issuerKey []byte
if mtls {
secret, sErr := getTrustChainSecret()
if sErr != nil {
return sErr
}
ca = secret.Data["ca.crt"]
issuerCert = secret.Data["issuer.crt"]
issuerKey = secret.Data["issuer.key"]
}
ha := highAvailabilityEnabled(status)
vals, err = upgradeChartValues(string(ca), string(issuerCert), string(issuerKey), ha, mtls, conf)
if err != nil {
return err
}
if !isDowngrade(conf.RuntimeVersion, daprVersion) {
err = applyCRDs(fmt.Sprintf("v%s", conf.RuntimeVersion))
if err != nil {
return err
}
} else {
print.InfoStatusEvent(os.Stdout, "Downgrade detected, skipping CRDs.")
}
chart, err := GetDaprHelmChartName(helmConf)
if err != nil {
return err
}
if _, err = upgradeClient.Run(chart, daprChart, vals); err != nil {
return err
}
return nil
}
func highAvailabilityEnabled(status []StatusOutput) bool {
for _, s := range status {
if s.Replicas > 1 {
return true
}
}
return false
}
func applyCRDs(version string) error {
for _, crd := range crds {
url := fmt.Sprintf("https://raw.githubusercontent.com/dapr/dapr/%s/charts/dapr/crds/%s.yaml", version, crd)
resp, _ := http.Get(url) // nolint:gosec
if resp != nil && resp.StatusCode == 200 {
defer resp.Body.Close()
_, err := utils.RunCmdAndWait("kubectl", "apply", "-f", url)
if err != nil {
return err
}
}
}
return nil
}
func upgradeChartValues(ca, issuerCert, issuerKey string, haMode, mtls bool, conf UpgradeConfig) (map[string]interface{}, error) {
chartVals := map[string]interface{}{}
globalVals := conf.Args
if mtls && ca != "" && issuerCert != "" && issuerKey != "" {
globalVals = append(globalVals, fmt.Sprintf("dapr_sentry.tls.root.certPEM=%s", ca),
fmt.Sprintf("dapr_sentry.tls.issuer.certPEM=%s", issuerCert),
fmt.Sprintf("dapr_sentry.tls.issuer.keyPEM=%s", issuerKey),
)
} else {
globalVals = append(globalVals, "global.mtls.enabled=false")
}
if len(conf.ImageRegistryURI) != 0 {
globalVals = append(globalVals, fmt.Sprintf("global.registry=%s", conf.ImageRegistryURI))
}
if haMode {
globalVals = append(globalVals, "global.ha.enabled=true")
}
for _, v := range globalVals {
if err := strvals.ParseInto(v, chartVals); err != nil {
return nil, err
}
}
return chartVals, nil
}
func isDowngrade(targetVersion, existingVersion string) bool {
target, _ := version.NewVersion(targetVersion)
existing, err := version.NewVersion(existingVersion)
if err != nil {
print.FailureStatusEvent(
os.Stderr,
fmt.Sprintf("Upgrade failed, %s. The current installed version does not have sematic versioning", err.Error()))
os.Exit(1)
}
return target.LessThan(existing)
}