mirror of
https://github.com/SAP/jenkins-library.git
synced 2024-12-14 11:03:09 +02:00
588 lines
20 KiB
Go
588 lines
20 KiB
Go
package cmd
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import (
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"bytes"
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"encoding/json"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"path/filepath"
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"regexp"
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"sort"
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"strconv"
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"strings"
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"text/template"
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"github.com/SAP/jenkins-library/pkg/docker"
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piperhttp "github.com/SAP/jenkins-library/pkg/http"
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"github.com/SAP/jenkins-library/pkg/kubernetes"
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"github.com/SAP/jenkins-library/pkg/log"
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"github.com/SAP/jenkins-library/pkg/telemetry"
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"github.com/pkg/errors"
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"helm.sh/helm/v3/pkg/cli/values"
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)
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func kubernetesDeploy(config kubernetesDeployOptions, telemetryData *telemetry.CustomData) {
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customTLSCertificateLinks := []string{}
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utils := kubernetes.NewDeployUtilsBundle(customTLSCertificateLinks)
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// error situations stop execution through log.Entry().Fatal() call which leads to an os.Exit(1) in the end
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err := runKubernetesDeploy(config, telemetryData, utils, log.Writer())
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if err != nil {
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log.Entry().WithError(err).Fatal("step execution failed")
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}
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}
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func runKubernetesDeploy(config kubernetesDeployOptions, telemetryData *telemetry.CustomData, utils kubernetes.DeployUtils, stdout io.Writer) error {
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telemetryData.Custom1Label = "deployTool"
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telemetryData.Custom1 = config.DeployTool
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if config.DeployTool == "helm" || config.DeployTool == "helm3" {
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err := runHelmDeploy(config, utils, stdout)
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// download and execute teardown script
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if len(config.TeardownScript) > 0 {
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log.Entry().Debugf("start running teardownScript script %v", config.TeardownScript)
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if scriptErr := downloadAndExecuteExtensionScript(config.TeardownScript, config.GithubToken, utils); scriptErr != nil {
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if err != nil {
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err = fmt.Errorf("failed to download/run teardownScript script: %v: %w", fmt.Sprint(scriptErr), err)
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} else {
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err = scriptErr
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}
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}
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log.Entry().Debugf("finished running teardownScript script %v", config.TeardownScript)
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}
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return err
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} else if config.DeployTool == "kubectl" {
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return runKubectlDeploy(config, utils, stdout)
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}
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return fmt.Errorf("Failed to execute deployments")
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}
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func runHelmDeploy(config kubernetesDeployOptions, utils kubernetes.DeployUtils, stdout io.Writer) error {
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if len(config.ChartPath) <= 0 {
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return fmt.Errorf("chart path has not been set, please configure chartPath parameter")
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}
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if len(config.DeploymentName) <= 0 {
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return fmt.Errorf("deployment name has not been set, please configure deploymentName parameter")
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}
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// download and execute setup script
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if len(config.SetupScript) > 0 {
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log.Entry().Debugf("start running setup script %v", config.SetupScript)
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if err := downloadAndExecuteExtensionScript(config.SetupScript, config.GithubToken, utils); err != nil {
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return fmt.Errorf("failed to download/run setup setup script: %w", err)
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}
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log.Entry().Debugf("finished running setup script %v", config.SetupScript)
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}
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_, containerRegistry, err := splitRegistryURL(config.ContainerRegistryURL)
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if err != nil {
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log.Entry().WithError(err).Fatalf("Container registry url '%v' incorrect", config.ContainerRegistryURL)
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}
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helmValues, err := defineDeploymentValues(config, containerRegistry)
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if err != nil {
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return errors.Wrap(err, "failed to process deployment values")
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}
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helmLogFields := map[string]interface{}{}
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helmLogFields["Chart Path"] = config.ChartPath
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helmLogFields["Namespace"] = config.Namespace
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helmLogFields["Deployment Name"] = config.DeploymentName
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helmLogFields["Context"] = config.KubeContext
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helmLogFields["Kubeconfig"] = config.KubeConfig
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log.Entry().WithFields(helmLogFields).Debug("Calling Helm")
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helmEnv := []string{fmt.Sprintf("KUBECONFIG=%v", config.KubeConfig)}
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if config.DeployTool == "helm" && len(config.TillerNamespace) > 0 {
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helmEnv = append(helmEnv, fmt.Sprintf("TILLER_NAMESPACE=%v", config.TillerNamespace))
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}
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log.Entry().Debugf("Helm SetEnv: %v", helmEnv)
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utils.SetEnv(helmEnv)
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utils.Stdout(stdout)
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if config.DeployTool == "helm" {
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initParams := []string{"init", "--client-only"}
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if err := utils.RunExecutable("helm", initParams...); err != nil {
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log.Entry().WithError(err).Fatal("Helm init call failed")
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}
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}
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if len(config.ContainerRegistryUser) == 0 && len(config.ContainerRegistryPassword) == 0 {
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log.Entry().Info("No/incomplete container registry credentials provided: skipping secret creation")
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if len(config.ContainerRegistrySecret) > 0 {
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helmValues.add("imagePullSecrets[0].name", config.ContainerRegistrySecret)
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}
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} else {
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var dockerRegistrySecret bytes.Buffer
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utils.Stdout(&dockerRegistrySecret)
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err, kubeSecretParams := defineKubeSecretParams(config, containerRegistry, utils)
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if err != nil {
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log.Entry().WithError(err).Fatal("parameter definition for creating registry secret failed")
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}
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log.Entry().Infof("Calling kubectl create secret --dry-run=true ...")
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log.Entry().Debugf("kubectl parameters %v", kubeSecretParams)
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if err := utils.RunExecutable("kubectl", kubeSecretParams...); err != nil {
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log.Entry().WithError(err).Fatal("Retrieving Docker config via kubectl failed")
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}
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var dockerRegistrySecretData struct {
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Kind string `json:"kind"`
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Data struct {
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DockerConfJSON string `json:".dockerconfigjson"`
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} `json:"data"`
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Type string `json:"type"`
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}
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if err := json.Unmarshal(dockerRegistrySecret.Bytes(), &dockerRegistrySecretData); err != nil {
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log.Entry().WithError(err).Fatal("Reading docker registry secret json failed")
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}
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// make sure that secret is hidden in log output
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log.RegisterSecret(dockerRegistrySecretData.Data.DockerConfJSON)
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log.Entry().Debugf("Secret created: %v", dockerRegistrySecret.String())
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// pass secret in helm default template way and in Piper backward compatible way
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helmValues.add("secret.name", config.ContainerRegistrySecret)
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helmValues.add("secret.dockerconfigjson", dockerRegistrySecretData.Data.DockerConfJSON)
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helmValues.add("imagePullSecrets[0].name", config.ContainerRegistrySecret)
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}
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// Deprecated functionality
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// only for backward compatible handling of ingress.hosts
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// this requires an adoption of the default ingress.yaml template
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// Due to the way helm is implemented it is currently not possible to overwrite a part of a list:
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// see: https://github.com/helm/helm/issues/5711#issuecomment-636177594
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// Recommended way is to use a custom values file which contains the appropriate data
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for i, h := range config.IngressHosts {
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helmValues.add(fmt.Sprintf("ingress.hosts[%v]", i), h)
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}
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upgradeParams := []string{
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"upgrade",
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config.DeploymentName,
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config.ChartPath,
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}
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for _, v := range config.HelmValues {
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upgradeParams = append(upgradeParams, "--values", v)
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}
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err = helmValues.mapValues()
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if err != nil {
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return errors.Wrap(err, "failed to map values using 'valuesMapping' configuration")
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}
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upgradeParams = append(
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upgradeParams,
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"--install",
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"--namespace", config.Namespace,
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"--set", strings.Join(helmValues.marshal(), ","),
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)
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if config.ForceUpdates {
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upgradeParams = append(upgradeParams, "--force")
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}
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if config.DeployTool == "helm" {
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upgradeParams = append(upgradeParams, "--wait", "--timeout", strconv.Itoa(config.HelmDeployWaitSeconds))
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}
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if config.DeployTool == "helm3" {
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upgradeParams = append(upgradeParams, "--wait", "--timeout", fmt.Sprintf("%vs", config.HelmDeployWaitSeconds))
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}
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if !config.KeepFailedDeployments {
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upgradeParams = append(upgradeParams, "--atomic")
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}
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if len(config.KubeContext) > 0 {
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upgradeParams = append(upgradeParams, "--kube-context", config.KubeContext)
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}
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if len(config.AdditionalParameters) > 0 {
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upgradeParams = append(upgradeParams, config.AdditionalParameters...)
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}
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utils.Stdout(stdout)
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log.Entry().Info("Calling helm upgrade ...")
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log.Entry().Debugf("Helm parameters %v", upgradeParams)
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if err := utils.RunExecutable("helm", upgradeParams...); err != nil {
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log.Entry().WithError(err).Fatal("Helm upgrade call failed")
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}
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// download and execute verification script
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if len(config.VerificationScript) > 0 {
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log.Entry().Debugf("start running verification script %v", config.VerificationScript)
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if err := downloadAndExecuteExtensionScript(config.VerificationScript, config.GithubToken, utils); err != nil {
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return fmt.Errorf("failed to download/run verification script: %w", err)
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}
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log.Entry().Debugf("finished running verification script %v", config.VerificationScript)
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}
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testParams := []string{
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"test",
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config.DeploymentName,
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"--namespace", config.Namespace,
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}
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if config.ShowTestLogs {
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testParams = append(
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testParams,
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"--logs",
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)
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}
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if config.RunHelmTests {
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if err := utils.RunExecutable("helm", testParams...); err != nil {
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log.Entry().WithError(err).Fatal("Helm test call failed")
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}
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}
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return nil
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}
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func runKubectlDeploy(config kubernetesDeployOptions, utils kubernetes.DeployUtils, stdout io.Writer) error {
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_, containerRegistry, err := splitRegistryURL(config.ContainerRegistryURL)
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if err != nil {
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log.Entry().WithError(err).Fatalf("Container registry url '%v' incorrect", config.ContainerRegistryURL)
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}
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kubeParams := []string{
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"--insecure-skip-tls-verify=true",
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fmt.Sprintf("--namespace=%v", config.Namespace),
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}
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if len(config.KubeConfig) > 0 {
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log.Entry().Info("Using KUBECONFIG environment for authentication.")
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kubeEnv := []string{fmt.Sprintf("KUBECONFIG=%v", config.KubeConfig)}
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utils.SetEnv(kubeEnv)
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if len(config.KubeContext) > 0 {
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kubeParams = append(kubeParams, fmt.Sprintf("--context=%v", config.KubeContext))
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}
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} else {
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log.Entry().Info("Using --token parameter for authentication.")
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kubeParams = append(kubeParams, fmt.Sprintf("--server=%v", config.APIServer))
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kubeParams = append(kubeParams, fmt.Sprintf("--token=%v", config.KubeToken))
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}
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utils.Stdout(stdout)
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if len(config.ContainerRegistryUser) == 0 && len(config.ContainerRegistryPassword) == 0 {
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log.Entry().Info("No/incomplete container registry credentials provided: skipping secret creation")
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} else {
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err, kubeSecretParams := defineKubeSecretParams(config, containerRegistry, utils)
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if err != nil {
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log.Entry().WithError(err).Fatal("parameter definition for creating registry secret failed")
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}
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var dockerRegistrySecret bytes.Buffer
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utils.Stdout(&dockerRegistrySecret)
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log.Entry().Infof("Creating container registry secret '%v'", config.ContainerRegistrySecret)
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kubeSecretParams = append(kubeSecretParams, kubeParams...)
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log.Entry().Debugf("Running kubectl with following parameters: %v", kubeSecretParams)
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if err := utils.RunExecutable("kubectl", kubeSecretParams...); err != nil {
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log.Entry().WithError(err).Fatal("Creating container registry secret failed")
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}
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var dockerRegistrySecretData map[string]interface{}
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if err := json.Unmarshal(dockerRegistrySecret.Bytes(), &dockerRegistrySecretData); err != nil {
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log.Entry().WithError(err).Fatal("Reading docker registry secret json failed")
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}
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// write the json output to a file
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tmpFolder := getTempDirForKubeCtlJSON()
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defer os.RemoveAll(tmpFolder) // clean up
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jsonData, _ := json.Marshal(dockerRegistrySecretData)
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if err := ioutil.WriteFile(filepath.Join(tmpFolder, "secret.json"), jsonData, 0777); err != nil {
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log.Entry().WithError(err).Warning("failed to write secret")
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}
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kubeSecretApplyParams := []string{"apply", "-f", filepath.Join(tmpFolder, "secret.json")}
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if err := utils.RunExecutable("kubectl", kubeSecretApplyParams...); err != nil {
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log.Entry().WithError(err).Fatal("Creating container registry secret failed")
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}
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}
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appTemplate, err := utils.FileRead(config.AppTemplate)
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if err != nil {
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log.Entry().WithError(err).Fatalf("Error when reading appTemplate '%v'", config.AppTemplate)
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}
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values, err := defineDeploymentValues(config, containerRegistry)
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if err != nil {
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return errors.Wrap(err, "failed to process deployment values")
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}
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err = values.mapValues()
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if err != nil {
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return errors.Wrap(err, "failed to map values using 'valuesMapping' configuration")
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}
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re := regexp.MustCompile(`image:[ ]*<image-name>`)
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placeholderFound := re.Match(appTemplate)
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if placeholderFound {
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log.Entry().Warn("image placeholder '<image-name>' is deprecated and does not support multi-image replacement, please use Helm-like template syntax '{{ .Values.image.[image-name].reposotory }}:{{ .Values.image.[image-name].tag }}")
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if values.singleImage {
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// Update image name in deployment yaml, expects placeholder like 'image: <image-name>'
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appTemplate = []byte(re.ReplaceAllString(string(appTemplate), fmt.Sprintf("image: %s:%s", values.get("image.repository"), values.get("image.tag"))))
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} else {
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return fmt.Errorf("multi-image replacement not supported for single image placeholder")
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}
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}
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buf := bytes.NewBufferString("")
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tpl, err := template.New("appTemplate").Parse(string(appTemplate))
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if err != nil {
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return errors.Wrap(err, "failed to parse app-template file")
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}
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err = tpl.Execute(buf, values.asHelmValues())
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if err != nil {
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return errors.Wrap(err, "failed to render app-template file")
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}
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err = utils.FileWrite(config.AppTemplate, buf.Bytes(), 0700)
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if err != nil {
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return errors.Wrapf(err, "Error when updating appTemplate '%v'", config.AppTemplate)
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}
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kubeParams = append(kubeParams, config.DeployCommand, "--filename", config.AppTemplate)
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if config.ForceUpdates && config.DeployCommand == "replace" {
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kubeParams = append(kubeParams, "--force")
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}
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if len(config.AdditionalParameters) > 0 {
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kubeParams = append(kubeParams, config.AdditionalParameters...)
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}
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if err := utils.RunExecutable("kubectl", kubeParams...); err != nil {
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log.Entry().Debugf("Running kubectl with following parameters: %v", kubeParams)
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log.Entry().WithError(err).Fatal("Deployment with kubectl failed.")
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}
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return nil
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}
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type deploymentValues struct {
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mapping map[string]interface{}
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singleImage bool
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values []struct {
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key, value string
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}
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}
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func (dv *deploymentValues) add(key, value string) {
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dv.values = append(dv.values, struct {
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key string
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value string
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}{
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key: key,
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value: value,
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})
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}
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func (dv deploymentValues) get(key string) string {
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for _, item := range dv.values {
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if item.key == key {
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return item.value
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}
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}
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return ""
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}
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func (dv *deploymentValues) mapValues() error {
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var keys []string
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for k := range dv.mapping {
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keys = append(keys, k)
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}
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sort.Strings(keys)
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for _, dst := range keys {
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srcString, ok := dv.mapping[dst].(string)
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if !ok {
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return fmt.Errorf("invalid path '%#v' is used for valuesMapping, only strings are supported", dv.mapping[dst])
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}
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if val := dv.get(srcString); val != "" {
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dv.add(dst, val)
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} else {
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escapedSrcString := strings.ReplaceAll(srcString, "-", "_")
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log.Entry().Debugf("property '%s' not found, trying with escaped version '%s'", srcString, escapedSrcString)
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if val := dv.get(escapedSrcString); val != "" {
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dv.add(dst, val)
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} else {
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return fmt.Errorf("can not map '%s: %s', %s is not set", dst, srcString, srcString)
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}
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}
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}
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return nil
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}
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func (dv deploymentValues) marshal() []string {
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var result []string
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for _, item := range dv.values {
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result = append(result, fmt.Sprintf("%s=%s", item.key, item.value))
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}
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return result
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}
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func (dv *deploymentValues) asHelmValues() map[string]interface{} {
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valuesOpts := values.Options{
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Values: dv.marshal(),
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}
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mergedValues, err := valuesOpts.MergeValues(nil)
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if err != nil {
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log.Entry().WithError(err).Fatal("failed to process deployment values")
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}
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return map[string]interface{}{
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"Values": mergedValues,
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}
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}
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func createKey(parts ...string) string {
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escapedParts := make([]string, 0, len(parts))
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replacer := strings.NewReplacer(".", "_", "-", "_")
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for _, part := range parts {
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escapedParts = append(escapedParts, replacer.Replace(part))
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}
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return strings.Join(escapedParts, ".")
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}
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func getTempDirForKubeCtlJSON() string {
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tmpFolder, err := ioutil.TempDir(".", "temp-")
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if err != nil {
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log.Entry().WithError(err).WithField("path", tmpFolder).Debug("creating temp directory failed")
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}
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return tmpFolder
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}
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func splitRegistryURL(registryURL string) (protocol, registry string, err error) {
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parts := strings.Split(registryURL, "://")
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if len(parts) != 2 || len(parts[1]) == 0 {
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return "", "", fmt.Errorf("Failed to split registry url '%v'", registryURL)
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}
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return parts[0], parts[1], nil
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}
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func splitFullImageName(image string) (imageName, tag string, err error) {
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parts := strings.Split(image, ":")
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switch len(parts) {
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case 0:
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return "", "", fmt.Errorf("Failed to split image name '%v'", image)
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case 1:
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if len(parts[0]) > 0 {
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return parts[0], "", nil
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}
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return "", "", fmt.Errorf("Failed to split image name '%v'", image)
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case 2:
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return parts[0], parts[1], nil
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}
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return "", "", fmt.Errorf("Failed to split image name '%v'", image)
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}
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func defineKubeSecretParams(config kubernetesDeployOptions, containerRegistry string, utils kubernetes.DeployUtils) (error, []string) {
|
|
targetPath := ""
|
|
if len(config.DockerConfigJSON) > 0 {
|
|
// first enhance config.json with additional pipeline-related credentials if they have been provided
|
|
if len(containerRegistry) > 0 && len(config.ContainerRegistryUser) > 0 && len(config.ContainerRegistryPassword) > 0 {
|
|
var err error
|
|
targetPath, err = docker.CreateDockerConfigJSON(containerRegistry, config.ContainerRegistryUser, config.ContainerRegistryPassword, "", config.DockerConfigJSON, utils)
|
|
if err != nil {
|
|
log.Entry().Warningf("failed to update Docker config.json: %v", err)
|
|
return err, []string{}
|
|
}
|
|
}
|
|
|
|
} else {
|
|
return fmt.Errorf("no docker config json file found to update credentials '%v'", config.DockerConfigJSON), []string{}
|
|
}
|
|
return nil, []string{
|
|
"create",
|
|
"secret",
|
|
"generic",
|
|
config.ContainerRegistrySecret,
|
|
fmt.Sprintf("--from-file=.dockerconfigjson=%v", targetPath),
|
|
"--type=kubernetes.io/dockerconfigjson",
|
|
"--insecure-skip-tls-verify=true",
|
|
"--dry-run=client",
|
|
"--output=json",
|
|
}
|
|
}
|
|
|
|
func defineDeploymentValues(config kubernetesDeployOptions, containerRegistry string) (*deploymentValues, error) {
|
|
var err error
|
|
var useDigests bool
|
|
dv := &deploymentValues{
|
|
mapping: config.ValuesMapping,
|
|
}
|
|
if len(config.ImageNames) > 0 {
|
|
if len(config.ImageNames) != len(config.ImageNameTags) {
|
|
log.SetErrorCategory(log.ErrorConfiguration)
|
|
return nil, fmt.Errorf("number of imageNames and imageNameTags must be equal")
|
|
}
|
|
if len(config.ImageDigests) > 0 {
|
|
if len(config.ImageDigests) != len(config.ImageNameTags) {
|
|
log.SetErrorCategory(log.ErrorConfiguration)
|
|
return nil, fmt.Errorf("number of imageDigests and imageNameTags must be equal")
|
|
}
|
|
|
|
useDigests = true
|
|
}
|
|
for i, key := range config.ImageNames {
|
|
name, tag, err := splitFullImageName(config.ImageNameTags[i])
|
|
if err != nil {
|
|
log.Entry().WithError(err).Fatalf("Container image '%v' incorrect", config.ImageNameTags[i])
|
|
}
|
|
|
|
if useDigests {
|
|
tag = fmt.Sprintf("%s@%s", tag, config.ImageDigests[i])
|
|
}
|
|
|
|
dv.add(createKey("image", key, "repository"), fmt.Sprintf("%v/%v", containerRegistry, name))
|
|
dv.add(createKey("image", key, "tag"), tag)
|
|
|
|
if len(config.ImageNames) == 1 {
|
|
dv.singleImage = true
|
|
dv.add("image.repository", fmt.Sprintf("%v/%v", containerRegistry, name))
|
|
dv.add("image.tag", tag)
|
|
}
|
|
}
|
|
} else {
|
|
// support either image or containerImageName and containerImageTag
|
|
containerImageName := ""
|
|
containerImageTag := ""
|
|
dv.singleImage = true
|
|
|
|
if len(config.Image) > 0 {
|
|
containerImageName, containerImageTag, err = splitFullImageName(config.Image)
|
|
if err != nil {
|
|
log.Entry().WithError(err).Fatalf("Container image '%v' incorrect", config.Image)
|
|
}
|
|
} else if len(config.ContainerImageName) > 0 && len(config.ContainerImageTag) > 0 {
|
|
containerImageName = config.ContainerImageName
|
|
containerImageTag = config.ContainerImageTag
|
|
} else {
|
|
return nil, fmt.Errorf("image information not given - please either set image or containerImageName and containerImageTag")
|
|
}
|
|
dv.add("image.repository", fmt.Sprintf("%v/%v", containerRegistry, containerImageName))
|
|
dv.add("image.tag", containerImageTag)
|
|
|
|
dv.add(createKey("image", containerImageName, "repository"), fmt.Sprintf("%v/%v", containerRegistry, containerImageName))
|
|
dv.add(createKey("image", containerImageName, "tag"), containerImageTag)
|
|
}
|
|
|
|
return dv, nil
|
|
}
|
|
|
|
func downloadAndExecuteExtensionScript(script, githubToken string, utils kubernetes.DeployUtils) error {
|
|
setupScript, err := piperhttp.DownloadExecutable(githubToken, utils, utils, script)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to download script %v: %w", script, err)
|
|
}
|
|
err = utils.RunExecutable(setupScript)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to execute script %v: %w", script, err)
|
|
}
|
|
return nil
|
|
}
|