mirror of
https://github.com/rancher/rke.git
synced 2025-07-09 13:23:09 +00:00
92d9fc9c75
don't delete all user resources, rerunning job will make sure k8s apply and ensure user config is redeployed after system addons
811 lines
29 KiB
Go
811 lines
29 KiB
Go
package cluster
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io/ioutil"
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"net/http"
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"os"
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"os/exec"
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"strings"
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"time"
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"github.com/rancher/rke/addons"
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"github.com/rancher/rke/authz"
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"github.com/rancher/rke/k8s"
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"github.com/rancher/rke/log"
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"github.com/rancher/rke/services"
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"github.com/rancher/rke/templates"
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v3 "github.com/rancher/rke/types"
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"github.com/rancher/rke/types/kdm"
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"github.com/rancher/rke/util"
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"github.com/sirupsen/logrus"
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"gopkg.in/yaml.v2"
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appsv1 "k8s.io/api/apps/v1"
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v1 "k8s.io/api/core/v1"
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)
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const (
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UserAddonResourceName = "rke-user-addon"
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IngressAddonResourceName = "rke-ingress-controller"
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UserAddonsIncludeResourceName = "rke-user-includes-addons"
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IngressAddonJobName = "rke-ingress-controller-deploy-job"
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MetricsServerAddonJobName = "rke-metrics-addon-deploy-job"
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UserAddonJobName = "rke-user-addon-deploy-job"
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UserAddonIncludeJobName = "rke-user-includes-addons-deploy-job"
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MetricsServerAddonResourceName = "rke-metrics-addon"
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KubeDNSAddonAppName = "kube-dns"
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KubeDNSAutoscalerAppName = "kube-dns-autoscaler"
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CoreDNSAutoscalerAppName = "coredns-autoscaler"
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KubeAPIAuthAppName = "kube-api-auth"
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CattleClusterAgentAppName = "cattle-cluster-agent"
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CoreDNSPriorityClassNameKey = "coredns_priority_class_name"
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CoreDNSAutoscalerPriorityClassNameKey = "coredns_autoscaler_priority_class_name"
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KubeDNSPriorityClassNameKey = "kube_dns_priority_class_name"
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KubeDNSAutoscalerPriorityClassNameKey = "kube_dns_autoscaler_priority_class_name"
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CoreDNSProvider = "coredns"
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KubeDNSProvider = "kube-dns"
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Nodelocal = "nodelocal"
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NginxIngressAddonAppName = "ingress-nginx"
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NginxIngressAddonAppNamespace = "ingress-nginx"
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NginxIngressAddonDefaultBackendName = "default-http-backend"
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NginxIngressAddonDefaultBackendNamespace = "ingress-nginx"
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)
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var (
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DNSProviders = []string{KubeDNSProvider, CoreDNSProvider}
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NginxIngressAddonJobNames = []string{"ingress-nginx-admission-create", "ingress-nginx-admission-patch"}
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)
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type ingressOptions struct {
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RBACConfig string
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Options map[string]string
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NodeSelector map[string]string
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ExtraArgs map[string]string
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ExtraEnvs []v3.ExtraEnv
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ExtraVolumes []v3.ExtraVolume
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ExtraVolumeMounts []v3.ExtraVolumeMount
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DNSPolicy string
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AlpineImage string
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IngressImage string
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IngressBackend string
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IngressWebhook string
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HTTPPort int
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HTTPSPort int
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NetworkMode string
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DefaultBackend bool
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UpdateStrategy *appsv1.DaemonSetUpdateStrategy
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Tolerations []v1.Toleration
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NginxIngressControllerPriorityClassName string
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DefaultHTTPBackendPriorityClassName string
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DefaultIngressClass bool
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}
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type MetricsServerOptions struct {
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RBACConfig string
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Options map[string]string
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NodeSelector map[string]string
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MetricsServerImage string
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Version string
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UpdateStrategy *appsv1.DeploymentStrategy
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Replicas *int32
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Tolerations []v1.Toleration
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MetricsServerPriorityClassName string
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}
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type CoreDNSOptions struct {
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RBACConfig string
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CoreDNSImage string
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CoreDNSAutoScalerImage string
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ClusterDomain string
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ClusterDNSServer string
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ReverseCIDRs []string
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UpstreamNameservers []string
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NodeSelector map[string]string
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UpdateStrategy *appsv1.DeploymentStrategy
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LinearAutoscalerParams string
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Tolerations []v1.Toleration
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CoreDNSPriorityClassName string
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CoreDNSAutoscalerPriorityClassName string
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}
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type KubeDNSOptions struct {
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RBACConfig string
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KubeDNSImage string
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DNSMasqImage string
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KubeDNSAutoScalerImage string
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KubeDNSSidecarImage string
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ClusterDomain string
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ClusterDNSServer string
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ReverseCIDRs []string
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UpstreamNameservers []string
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StubDomains map[string][]string
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NodeSelector map[string]string
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UpdateStrategy *appsv1.DeploymentStrategy
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LinearAutoscalerParams string
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Tolerations []v1.Toleration
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KubeDNSPriorityClassName string
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KubeDNSAutoscalerPriorityClassName string
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}
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type NodelocalOptions struct {
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RBACConfig string
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NodelocalImage string
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ClusterDomain string
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ClusterDNSServer string
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IPAddress string
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NodeSelector map[string]string
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UpdateStrategy *appsv1.DaemonSetUpdateStrategy
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NodeLocalDNSPriorityClassName string
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}
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type addonError struct {
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err string
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isCritical bool
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}
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func (e *addonError) Error() string {
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return e.err
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}
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func getAddonResourceName(addon string) string {
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AddonResourceName := "rke-" + addon + "-addon"
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return AddonResourceName
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}
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func (c *Cluster) deployK8sAddOns(ctx context.Context, data map[string]interface{}) error {
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if err := c.deployDNS(ctx, data); err != nil {
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if err, ok := err.(*addonError); ok && err.isCritical {
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return err
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}
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log.Warnf(ctx, "Failed to deploy DNS addon execute job for provider %s: %v", c.DNS.Provider, err)
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}
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if err := c.deployMetricServer(ctx, data); err != nil {
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if err, ok := err.(*addonError); ok && err.isCritical {
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return err
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}
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log.Warnf(ctx, "Failed to deploy addon execute job [%s]: %v", MetricsServerAddonResourceName, err)
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}
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if err := c.deployIngress(ctx, data); err != nil {
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if err, ok := err.(*addonError); ok && err.isCritical {
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return err
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}
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log.Warnf(ctx, "Failed to deploy addon execute job [%s]: %v", IngressAddonResourceName, err)
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}
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return nil
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}
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func (c *Cluster) deployUserAddOns(ctx context.Context) error {
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log.Infof(ctx, "[addons] Setting up user addons")
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if c.Addons != "" {
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// deletes existing job if resource name is rke-user-addon and redeploy user addons
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if err := c.doAddonDeploy(ctx, c.Addons, UserAddonResourceName, false); err != nil {
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return err
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}
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} else {
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addonJobExists, err := addons.AddonJobExists(UserAddonJobName, c.LocalKubeConfigPath, c.K8sWrapTransport)
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if err != nil {
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return nil
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}
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if addonJobExists {
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log.Infof(ctx, "[addons] Removing user addons")
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if err := c.doAddonDelete(ctx, UserAddonResourceName, false); err != nil {
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return err
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}
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log.Infof(ctx, "[addons] User addons removed successfully")
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}
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}
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if len(c.AddonsInclude) > 0 {
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// deletes existing job if resource name is rke-user-includes-addons and redeploy user addons
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if err := c.deployAddonsInclude(ctx); err != nil {
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return err
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}
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} else {
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addonJobExists, err := addons.AddonJobExists(UserAddonIncludeJobName, c.LocalKubeConfigPath, c.K8sWrapTransport)
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if err != nil {
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return nil
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}
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if addonJobExists {
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if err := c.doAddonDelete(ctx, UserAddonsIncludeResourceName, false); err != nil {
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return err
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}
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}
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}
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if c.Addons == "" && len(c.AddonsInclude) == 0 {
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log.Infof(ctx, "[addons] no user addons defined")
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} else {
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log.Infof(ctx, "[addons] User addons deployed successfully")
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}
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return nil
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}
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func (c *Cluster) deployAddonsInclude(ctx context.Context) error {
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var manifests []byte
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log.Infof(ctx, "[addons] Checking for included user addons")
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if len(c.AddonsInclude) == 0 {
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log.Infof(ctx, "[addons] No included addon paths or urls")
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return nil
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}
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for _, addon := range c.AddonsInclude {
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if strings.HasPrefix(addon, "http") {
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addonYAML, err := getAddonFromURL(addon)
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if err != nil {
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return err
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}
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log.Infof(ctx, "[addons] Adding addon from url %s", addon)
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logrus.Debugf("URL Yaml: %s", addonYAML)
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// make sure we properly separated manifests
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addonYAMLStr := string(addonYAML)
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formattedAddonYAML := formatAddonYAML(addonYAMLStr)
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addonYAML = []byte(formattedAddonYAML)
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logrus.Debugf("Formatted Yaml: %s", addonYAML)
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if err := validateUserAddonYAML(addonYAML); err != nil {
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return err
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}
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manifests = append(manifests, addonYAML...)
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} else if isFilePath(addon) {
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addonYAML, err := ioutil.ReadFile(addon)
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if err != nil {
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return err
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}
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log.Infof(ctx, "[addons] Adding addon from %s", addon)
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logrus.Debugf("FilePath Yaml: %s", string(addonYAML))
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// make sure we properly separated manifests
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addonYAMLStr := string(addonYAML)
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formattedAddonYAML := formatAddonYAML(addonYAMLStr)
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addonYAML = []byte(formattedAddonYAML)
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logrus.Debugf("Formatted Yaml: %s", addonYAML)
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if err := validateUserAddonYAML(addonYAML); err != nil {
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return err
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}
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manifests = append(manifests, addonYAML...)
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} else {
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log.Warnf(ctx, "[addons] Unable to determine if %s is a file path or url, skipping", addon)
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}
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}
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log.Infof(ctx, "[addons] Deploying %s", UserAddonsIncludeResourceName)
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logrus.Debugf("[addons] Compiled addons yaml: %s", string(manifests))
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return c.doAddonDeploy(ctx, string(manifests), UserAddonsIncludeResourceName, false)
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}
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func formatAddonYAML(addonYAMLStr string) string {
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if !strings.HasPrefix(addonYAMLStr, "---") {
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logrus.Debug("Yaml does not start with dashes")
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addonYAMLStr = fmt.Sprintf("%s\n%s", "---", addonYAMLStr)
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}
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if !strings.HasSuffix(addonYAMLStr, "\n") {
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logrus.Debug("Yaml does not end with newline")
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addonYAMLStr = fmt.Sprintf("%s\n", addonYAMLStr)
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}
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return addonYAMLStr
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}
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func validateUserAddonYAML(addon []byte) error {
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yamlContents := make(map[string]interface{})
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return yaml.Unmarshal(addon, &yamlContents)
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}
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func isFilePath(addonPath string) bool {
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if _, err := os.Stat(addonPath); os.IsNotExist(err) {
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return false
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}
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return true
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}
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func getAddonFromURL(yamlURL string) ([]byte, error) {
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resp, err := http.Get(yamlURL)
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if err != nil {
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return nil, err
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}
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defer resp.Body.Close()
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addonYaml, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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return addonYaml, nil
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}
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func (c *Cluster) deployKubeDNS(ctx context.Context, data map[string]interface{}) error {
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log.Infof(ctx, "[addons] Setting up %s", c.DNS.Provider)
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KubeDNSConfig := KubeDNSOptions{
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KubeDNSImage: c.SystemImages.KubeDNS,
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KubeDNSSidecarImage: c.SystemImages.KubeDNSSidecar,
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KubeDNSAutoScalerImage: c.SystemImages.KubeDNSAutoscaler,
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DNSMasqImage: c.SystemImages.DNSmasq,
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RBACConfig: c.Authorization.Mode,
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ClusterDomain: c.ClusterDomain,
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ClusterDNSServer: c.ClusterDNSServer,
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UpstreamNameservers: c.DNS.UpstreamNameservers,
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ReverseCIDRs: c.DNS.ReverseCIDRs,
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StubDomains: c.DNS.StubDomains,
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NodeSelector: c.DNS.NodeSelector,
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UpdateStrategy: &appsv1.DeploymentStrategy{
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Type: c.DNS.UpdateStrategy.Strategy,
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RollingUpdate: c.DNS.UpdateStrategy.RollingUpdate,
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},
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Tolerations: c.DNS.Tolerations,
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KubeDNSPriorityClassName: c.DNS.Options[KubeDNSPriorityClassNameKey],
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KubeDNSAutoscalerPriorityClassName: c.DNS.Options[KubeDNSAutoscalerPriorityClassNameKey],
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}
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linearModeBytes, err := json.Marshal(c.DNS.LinearAutoscalerParams)
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if err != nil {
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return err
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}
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KubeDNSConfig.LinearAutoscalerParams = string(linearModeBytes)
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tmplt, err := templates.GetVersionedTemplates(kdm.KubeDNS, data, c.Version)
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if err != nil {
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return err
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}
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kubeDNSYaml, err := templates.CompileTemplateFromMap(tmplt, KubeDNSConfig)
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if err != nil {
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return err
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}
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if err := c.doAddonDeploy(ctx, kubeDNSYaml, getAddonResourceName(c.DNS.Provider), true); err != nil {
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return err
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}
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log.Infof(ctx, "[addons] %s deployed successfully", c.DNS.Provider)
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return nil
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}
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func (c *Cluster) deployCoreDNS(ctx context.Context, data map[string]interface{}) error {
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log.Infof(ctx, "[addons] Setting up %s", c.DNS.Provider)
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CoreDNSConfig := CoreDNSOptions{
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CoreDNSImage: c.SystemImages.CoreDNS,
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CoreDNSAutoScalerImage: c.SystemImages.CoreDNSAutoscaler,
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RBACConfig: c.Authorization.Mode,
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ClusterDomain: c.ClusterDomain,
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ClusterDNSServer: c.ClusterDNSServer,
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UpstreamNameservers: c.DNS.UpstreamNameservers,
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ReverseCIDRs: c.DNS.ReverseCIDRs,
|
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NodeSelector: c.DNS.NodeSelector,
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UpdateStrategy: &appsv1.DeploymentStrategy{
|
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Type: c.DNS.UpdateStrategy.Strategy,
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RollingUpdate: c.DNS.UpdateStrategy.RollingUpdate,
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},
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Tolerations: c.DNS.Tolerations,
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CoreDNSPriorityClassName: c.DNS.Options[CoreDNSPriorityClassNameKey],
|
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CoreDNSAutoscalerPriorityClassName: c.DNS.Options[CoreDNSAutoscalerPriorityClassNameKey],
|
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}
|
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linearModeBytes, err := json.Marshal(c.DNS.LinearAutoscalerParams)
|
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if err != nil {
|
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return err
|
|
}
|
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CoreDNSConfig.LinearAutoscalerParams = string(linearModeBytes)
|
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tmplt, err := templates.GetVersionedTemplates(kdm.CoreDNS, data, c.Version)
|
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if err != nil {
|
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return err
|
|
}
|
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coreDNSYaml, err := templates.CompileTemplateFromMap(tmplt, CoreDNSConfig)
|
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if err != nil {
|
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return err
|
|
}
|
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if err := c.doAddonDeploy(ctx, coreDNSYaml, getAddonResourceName(c.DNS.Provider), true); err != nil {
|
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return err
|
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}
|
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log.Infof(ctx, "[addons] CoreDNS deployed successfully")
|
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return nil
|
|
}
|
|
|
|
func (c *Cluster) deployMetricServer(ctx context.Context, data map[string]interface{}) error {
|
|
if c.Monitoring.Provider == "none" {
|
|
addonJobExists, err := addons.AddonJobExists(MetricsServerAddonJobName, c.LocalKubeConfigPath, c.K8sWrapTransport)
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
if addonJobExists {
|
|
log.Infof(ctx, "[ingress] Removing installed metrics server")
|
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if err := c.doAddonDelete(ctx, MetricsServerAddonResourceName, false); err != nil {
|
|
return err
|
|
}
|
|
|
|
log.Infof(ctx, "[ingress] Metrics server removed successfully")
|
|
} else {
|
|
log.Infof(ctx, "[ingress] Metrics Server is disabled, skipping Metrics server installation")
|
|
}
|
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return nil
|
|
}
|
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log.Infof(ctx, "[addons] Setting up Metrics Server")
|
|
s := strings.Split(c.SystemImages.MetricsServer, ":")
|
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versionTag := s[len(s)-1]
|
|
|
|
MetricsServerConfig := MetricsServerOptions{
|
|
MetricsServerImage: c.SystemImages.MetricsServer,
|
|
RBACConfig: c.Authorization.Mode,
|
|
Options: c.Monitoring.Options,
|
|
NodeSelector: c.Monitoring.NodeSelector,
|
|
Version: util.GetTagMajorVersion(versionTag),
|
|
UpdateStrategy: &appsv1.DeploymentStrategy{
|
|
Type: c.Monitoring.UpdateStrategy.Strategy,
|
|
RollingUpdate: c.Monitoring.UpdateStrategy.RollingUpdate,
|
|
},
|
|
Replicas: c.Monitoring.Replicas,
|
|
Tolerations: c.Monitoring.Tolerations,
|
|
MetricsServerPriorityClassName: c.Monitoring.MetricsServerPriorityClassName,
|
|
}
|
|
tmplt, err := templates.GetVersionedTemplates(kdm.MetricsServer, data, c.Version)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
metricsYaml, err := templates.CompileTemplateFromMap(tmplt, MetricsServerConfig)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if err := c.doAddonDeploy(ctx, metricsYaml, MetricsServerAddonResourceName, true); err != nil {
|
|
return err
|
|
}
|
|
log.Infof(ctx, "[addons] Metrics Server deployed successfully")
|
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return nil
|
|
}
|
|
|
|
func (c *Cluster) deployWithKubectl(ctx context.Context, addonYaml string) error {
|
|
buf := bytes.NewBufferString(addonYaml)
|
|
cmd := exec.Command("kubectl", "--kubeconfig", c.LocalKubeConfigPath, "apply", "-f", "-")
|
|
cmd.Stdin = buf
|
|
cmd.Stdout = os.Stdout
|
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cmd.Stderr = os.Stderr
|
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return cmd.Run()
|
|
}
|
|
|
|
func (c *Cluster) doAddonDeploy(ctx context.Context, addonYaml, resourceName string, isCritical bool) error {
|
|
if c.UseKubectlDeploy {
|
|
if err := c.deployWithKubectl(ctx, addonYaml); err != nil {
|
|
return &addonError{fmt.Sprintf("%v", err), isCritical}
|
|
}
|
|
}
|
|
|
|
addonUpdated, err := c.StoreAddonConfigMap(ctx, addonYaml, resourceName)
|
|
if err != nil {
|
|
return &addonError{fmt.Sprintf("Failed to save addon ConfigMap: %v", err), isCritical}
|
|
}
|
|
|
|
log.Infof(ctx, "[addons] Executing deploy job %s", resourceName)
|
|
k8sClient, err := k8s.NewClient(c.LocalKubeConfigPath, c.K8sWrapTransport)
|
|
if err != nil {
|
|
return &addonError{fmt.Sprintf("%v", err), isCritical}
|
|
}
|
|
node, err := k8s.GetNode(k8sClient, c.ControlPlaneHosts[0].HostnameOverride)
|
|
if err != nil {
|
|
return &addonError{fmt.Sprintf("Failed to get Node [%s]: %v", c.ControlPlaneHosts[0].HostnameOverride, err), isCritical}
|
|
}
|
|
addonJob, err := addons.GetAddonsExecuteJob(resourceName, node.Name, c.Services.KubeAPI.Image, c.Version)
|
|
|
|
if err != nil {
|
|
return &addonError{fmt.Sprintf("Failed to generate addon execute job: %v", err), isCritical}
|
|
}
|
|
|
|
if err = c.ApplySystemAddonExecuteJob(addonJob, resourceName, addonUpdated); err != nil {
|
|
return &addonError{fmt.Sprintf("%v", err), isCritical}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (c *Cluster) doAddonDelete(ctx context.Context, resourceName string, isCritical bool) error {
|
|
k8sClient, err := k8s.NewClient(c.LocalKubeConfigPath, c.K8sWrapTransport)
|
|
if err != nil {
|
|
return &addonError{fmt.Sprintf("%v", err), isCritical}
|
|
}
|
|
node, err := k8s.GetNode(k8sClient, c.ControlPlaneHosts[0].HostnameOverride)
|
|
if err != nil {
|
|
return &addonError{fmt.Sprintf("Failed to get Node [%s]: %v", c.ControlPlaneHosts[0].HostnameOverride, err), isCritical}
|
|
}
|
|
deleteJob, err := addons.GetAddonsDeleteJob(resourceName, node.Name, c.Services.KubeAPI.Image, c.Version)
|
|
if err != nil {
|
|
return &addonError{fmt.Sprintf("Failed to generate addon delete job: %v", err), isCritical}
|
|
}
|
|
if err := k8s.ApplyK8sSystemJob(deleteJob, c.LocalKubeConfigPath, c.K8sWrapTransport, c.AddonJobTimeout*2, resourceName, false); err != nil {
|
|
return &addonError{fmt.Sprintf("%v", err), isCritical}
|
|
}
|
|
// At this point, the addon should be deleted. We need to clean up by deleting the deploy and delete jobs.
|
|
tmpJobYaml, err := addons.GetAddonsExecuteJob(resourceName, node.Name, c.Services.KubeAPI.Image, c.Version)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if err := k8s.DeleteK8sSystemJob(tmpJobYaml, k8sClient, c.AddonJobTimeout); err != nil {
|
|
return err
|
|
}
|
|
|
|
return k8s.DeleteK8sSystemJob(deleteJob, k8sClient, c.AddonJobTimeout)
|
|
|
|
}
|
|
|
|
func (c *Cluster) StoreAddonConfigMap(ctx context.Context, addonYaml string, addonName string) (bool, error) {
|
|
log.Infof(ctx, "[addons] Saving ConfigMap for addon %s to Kubernetes", addonName)
|
|
updated := false
|
|
kubeClient, err := k8s.NewClient(c.LocalKubeConfigPath, c.K8sWrapTransport)
|
|
if err != nil {
|
|
return updated, err
|
|
}
|
|
timeout := make(chan bool, 1)
|
|
go func() {
|
|
for {
|
|
updated, err = k8s.UpdateConfigMap(kubeClient, []byte(addonYaml), addonName)
|
|
if err != nil {
|
|
time.Sleep(time.Second * 5)
|
|
continue
|
|
}
|
|
log.Infof(ctx, "[addons] Successfully saved ConfigMap for addon %s to Kubernetes", addonName)
|
|
timeout <- true
|
|
break
|
|
}
|
|
}()
|
|
select {
|
|
case <-timeout:
|
|
return updated, nil
|
|
case <-time.After(time.Second * UpdateStateTimeout):
|
|
return updated, fmt.Errorf("[addons] Timeout waiting for kubernetes to be ready")
|
|
}
|
|
}
|
|
|
|
func (c *Cluster) ApplySystemAddonExecuteJob(addonJob, resourceName string, addonUpdated bool) error {
|
|
return k8s.ApplyK8sSystemJob(addonJob, c.LocalKubeConfigPath, c.K8sWrapTransport, c.AddonJobTimeout, resourceName, addonUpdated)
|
|
}
|
|
|
|
func (c *Cluster) deployIngress(ctx context.Context, data map[string]interface{}) error {
|
|
if c.Ingress.Provider == "none" {
|
|
addonJobExists, err := addons.AddonJobExists(IngressAddonJobName, c.LocalKubeConfigPath, c.K8sWrapTransport)
|
|
if err != nil {
|
|
return nil
|
|
}
|
|
if addonJobExists {
|
|
log.Infof(ctx, "[ingress] removing installed ingress controller")
|
|
if err := c.doAddonDelete(ctx, IngressAddonResourceName, false); err != nil {
|
|
return err
|
|
}
|
|
log.Infof(ctx, "[ingress] ingress controller removed successfully")
|
|
} else {
|
|
log.Infof(ctx, "[ingress] ingress controller is disabled, skipping ingress controller")
|
|
}
|
|
return nil
|
|
}
|
|
log.Infof(ctx, "[ingress] Setting up %s ingress controller", c.Ingress.Provider)
|
|
ingressConfig := ingressOptions{
|
|
RBACConfig: c.Authorization.Mode,
|
|
Options: c.Ingress.Options,
|
|
NodeSelector: c.Ingress.NodeSelector,
|
|
ExtraArgs: c.Ingress.ExtraArgs,
|
|
DNSPolicy: c.Ingress.DNSPolicy,
|
|
IngressImage: c.SystemImages.Ingress,
|
|
IngressBackend: c.SystemImages.IngressBackend,
|
|
IngressWebhook: c.SystemImages.IngressWebhook,
|
|
ExtraEnvs: c.Ingress.ExtraEnvs,
|
|
ExtraVolumes: c.Ingress.ExtraVolumes,
|
|
ExtraVolumeMounts: c.Ingress.ExtraVolumeMounts,
|
|
HTTPPort: c.Ingress.HTTPPort,
|
|
HTTPSPort: c.Ingress.HTTPSPort,
|
|
NetworkMode: c.Ingress.NetworkMode,
|
|
DefaultBackend: *c.Ingress.DefaultBackend,
|
|
UpdateStrategy: &appsv1.DaemonSetUpdateStrategy{
|
|
Type: c.Ingress.UpdateStrategy.Strategy,
|
|
RollingUpdate: c.Ingress.UpdateStrategy.RollingUpdate,
|
|
},
|
|
Tolerations: c.Ingress.Tolerations,
|
|
NginxIngressControllerPriorityClassName: c.Ingress.NginxIngressControllerPriorityClassName,
|
|
DefaultHTTPBackendPriorityClassName: c.Ingress.DefaultHTTPBackendPriorityClassName,
|
|
DefaultIngressClass: *c.Ingress.DefaultIngressClass,
|
|
}
|
|
// since nginx ingress controller 0.16.0, it can be run as non-root and doesn't require privileged anymore.
|
|
// So we can use securityContext instead of setting privileges via initContainer.
|
|
// There are two formats currently in use:
|
|
// rancher/nginx-ingress-controller:0.21.0-rancher3
|
|
// rancher/nginx-ingress-controller:nginx-0.43.0-rancher1
|
|
// This code was adjusted to match both and look at the tag (last element)
|
|
ingressSplits := strings.Split(c.SystemImages.Ingress, ":")
|
|
if len(ingressSplits) >= 2 {
|
|
var version string
|
|
ingressTag := ingressSplits[len(ingressSplits)-1]
|
|
ingressTagSplits := strings.Split(ingressTag, "-")
|
|
// both formats are caught here, either first or second element based on count of elements
|
|
if len(ingressTagSplits) == 2 {
|
|
version = ingressTagSplits[0]
|
|
} else {
|
|
version = ingressTagSplits[1]
|
|
}
|
|
if version < "0.16.0" {
|
|
ingressConfig.AlpineImage = c.SystemImages.Alpine
|
|
}
|
|
// since nginx ingress controller 0.40.0, admission batch jobs are deployed.
|
|
// Before deployment of the new ingress controller based on the update strategy, remove admission batch jobs if they exist.
|
|
if version > "0.40.0" {
|
|
log.Infof(ctx, "[ingress] removing admission batch jobs if they exist")
|
|
kubeClient, err := k8s.NewClient(c.LocalKubeConfigPath, c.K8sWrapTransport)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
for _, jobName := range NginxIngressAddonJobNames {
|
|
if err = k8s.DeleteK8sJobIfExists(kubeClient, jobName, NginxIngressAddonAppNamespace); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
// This ensures ingresses created before upgrade are watched else they would all stop working
|
|
// This is because ingressClass is required on the ingress
|
|
// User can disable it by configuring watch-ingress-without-class: "false" in extra_args for ingress
|
|
if version >= "1.1.0" {
|
|
if c.Ingress.ExtraArgs != nil {
|
|
if _, ok := c.Ingress.ExtraArgs["watch-ingress-without-class"]; !ok {
|
|
ingressConfig.ExtraArgs["watch-ingress-without-class"] = "true"
|
|
}
|
|
} else {
|
|
extraArgs := map[string]string{
|
|
"watch-ingress-without-class": "true",
|
|
}
|
|
ingressConfig.ExtraArgs = extraArgs
|
|
}
|
|
}
|
|
}
|
|
tmplt, err := templates.GetVersionedTemplates(kdm.NginxIngress, data, c.Version)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// Currently only deploying nginx ingress controller
|
|
ingressYaml, err := templates.CompileTemplateFromMap(tmplt, ingressConfig)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if err := c.doAddonDeploy(ctx, ingressYaml, IngressAddonResourceName, true); err != nil {
|
|
return err
|
|
}
|
|
// ingress runs in it's own namespace, so it needs it's own role/rolebinding for PSP
|
|
if c.Authorization.Mode == services.RBACAuthorizationMode && c.Services.KubeAPI.PodSecurityPolicy {
|
|
if err := authz.ApplyDefaultPodSecurityPolicyRole(ctx, c.LocalKubeConfigPath, NginxIngressAddonAppName, c.K8sWrapTransport); err != nil {
|
|
return fmt.Errorf("Failed to apply default PodSecurityPolicy ClusterRole and ClusterRoleBinding: %v", err)
|
|
}
|
|
}
|
|
|
|
// After deployment of the new ingress controller based on the update strategy, remove the default backend as requested.
|
|
if !ingressConfig.DefaultBackend {
|
|
log.Infof(ctx, "[ingress] removing default backend service and deployment if they exist")
|
|
kubeClient, err := k8s.NewClient(c.LocalKubeConfigPath, c.K8sWrapTransport)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if err = k8s.DeleteServiceIfExists(ctx, kubeClient, NginxIngressAddonDefaultBackendName, NginxIngressAddonDefaultBackendNamespace); err != nil {
|
|
return err
|
|
}
|
|
if err = k8s.DeleteDeploymentIfExists(ctx, kubeClient, NginxIngressAddonDefaultBackendName, NginxIngressAddonDefaultBackendNamespace); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
log.Infof(ctx, "[ingress] ingress controller %s deployed successfully", c.Ingress.Provider)
|
|
return nil
|
|
}
|
|
|
|
func (c *Cluster) removeDNSProvider(ctx context.Context, dnsprovider string) error {
|
|
AddonJobExists, err := addons.AddonJobExists(getAddonResourceName(dnsprovider)+"-deploy-job", c.LocalKubeConfigPath, c.K8sWrapTransport)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if AddonJobExists {
|
|
log.Infof(ctx, "[dns] removing DNS provider %s", dnsprovider)
|
|
if err := c.doAddonDelete(ctx, getAddonResourceName(dnsprovider), false); err != nil {
|
|
return err
|
|
}
|
|
|
|
log.Infof(ctx, "[dns] DNS provider %s removed successfully", dnsprovider)
|
|
return nil
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (c *Cluster) deployDNS(ctx context.Context, data map[string]interface{}) error {
|
|
for _, dnsprovider := range DNSProviders {
|
|
if strings.EqualFold(dnsprovider, c.DNS.Provider) {
|
|
continue
|
|
}
|
|
if err := c.removeDNSProvider(ctx, dnsprovider); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
switch DNSProvider := c.DNS.Provider; DNSProvider {
|
|
case DefaultDNSProvider:
|
|
if err := c.deployKubeDNS(ctx, data); err != nil {
|
|
if err, ok := err.(*addonError); ok && err.isCritical {
|
|
return err
|
|
}
|
|
log.Warnf(ctx, "Failed to deploy addon execute job [%s]: %v", getAddonResourceName(c.DNS.Provider), err)
|
|
}
|
|
log.Infof(ctx, "[dns] DNS provider %s deployed successfully", c.DNS.Provider)
|
|
case CoreDNSProvider:
|
|
if err := c.deployCoreDNS(ctx, data); err != nil {
|
|
if err, ok := err.(*addonError); ok && err.isCritical {
|
|
return err
|
|
}
|
|
log.Warnf(ctx, "Failed to deploy addon execute job [%s]: %v", getAddonResourceName(c.DNS.Provider), err)
|
|
}
|
|
log.Infof(ctx, "[dns] DNS provider %s deployed successfully", c.DNS.Provider)
|
|
case "none":
|
|
return nil
|
|
default:
|
|
log.Warnf(ctx, "[dns] No valid DNS provider configured: %s", c.DNS.Provider)
|
|
return nil
|
|
}
|
|
// Check for nodelocal DNS
|
|
if c.DNS.Nodelocal == nil {
|
|
AddonJobExists, err := addons.AddonJobExists(getAddonResourceName(Nodelocal)+"-deploy-job", c.LocalKubeConfigPath, c.K8sWrapTransport)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if AddonJobExists {
|
|
log.Infof(ctx, "[dns] removing %s", Nodelocal)
|
|
if err := c.doAddonDelete(ctx, getAddonResourceName(Nodelocal), false); err != nil {
|
|
return err
|
|
}
|
|
|
|
log.Infof(ctx, "[dns] %s removed successfully", Nodelocal)
|
|
return nil
|
|
}
|
|
}
|
|
if c.DNS.Nodelocal != nil && c.DNS.Nodelocal.IPAddress != "" {
|
|
if err := c.deployNodelocal(ctx, data); err != nil {
|
|
if err, ok := err.(*addonError); ok && err.isCritical {
|
|
return err
|
|
}
|
|
log.Warnf(ctx, "Failed to deploy addon execute job [%s]: %v", getAddonResourceName(Nodelocal), err)
|
|
}
|
|
return nil
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (c *Cluster) deployNodelocal(ctx context.Context, data map[string]interface{}) error {
|
|
log.Infof(ctx, "[dns] Setting up %s", Nodelocal)
|
|
NodelocalConfig := NodelocalOptions{
|
|
NodelocalImage: c.SystemImages.Nodelocal,
|
|
RBACConfig: c.Authorization.Mode,
|
|
ClusterDomain: c.ClusterDomain,
|
|
ClusterDNSServer: c.ClusterDNSServer,
|
|
IPAddress: c.DNS.Nodelocal.IPAddress,
|
|
NodeSelector: c.DNS.Nodelocal.NodeSelector,
|
|
NodeLocalDNSPriorityClassName: c.DNS.Nodelocal.NodeLocalDNSPriorityClassName,
|
|
}
|
|
if c.DNS.Nodelocal.UpdateStrategy != nil {
|
|
NodelocalConfig.UpdateStrategy = &appsv1.DaemonSetUpdateStrategy{
|
|
Type: c.DNS.Nodelocal.UpdateStrategy.Strategy,
|
|
RollingUpdate: c.DNS.Nodelocal.UpdateStrategy.RollingUpdate,
|
|
}
|
|
}
|
|
tmplt, err := templates.GetVersionedTemplates(kdm.Nodelocal, data, c.Version)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
nodelocalYaml, err := templates.CompileTemplateFromMap(tmplt, NodelocalConfig)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if err := c.doAddonDeploy(ctx, nodelocalYaml, getAddonResourceName(Nodelocal), true); err != nil {
|
|
return err
|
|
}
|
|
log.Infof(ctx, "[dns] %s deployed successfully", Nodelocal)
|
|
return nil
|
|
}
|