mirror of
https://github.com/edgelesssys/constellation.git
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efcd0337b4
Run with: constellation upgrade execute --helm. This will only upgrade the helm charts. No config is needed. Upgrades are implemented via helm's upgrade action, i.e. they automatically roll back if something goes wrong. Releases could still be managed via helm, even after an upgrade with constellation has been done. Currently not user facing as CRD/CR backups are still in progress. These backups should be automatically created and saved to the user's disk as updates may delete CRs. This happens implicitly through CRD upgrades, which are part of microservice upgrades.
585 lines
17 KiB
Go
585 lines
17 KiB
Go
/*
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Copyright (c) Edgeless Systems GmbH
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SPDX-License-Identifier: AGPL-3.0-only
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*/
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package helm
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import (
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"bytes"
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"embed"
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"encoding/base64"
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"encoding/json"
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"fmt"
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"io/fs"
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"os"
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"path/filepath"
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"strings"
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"github.com/edgelesssys/constellation/v2/internal/cloud/cloudprovider"
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"github.com/edgelesssys/constellation/v2/internal/config"
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"github.com/edgelesssys/constellation/v2/internal/constants"
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"github.com/edgelesssys/constellation/v2/internal/deploy/helm"
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"github.com/edgelesssys/constellation/v2/internal/versions"
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"github.com/pkg/errors"
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"helm.sh/helm/pkg/ignore"
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"helm.sh/helm/v3/pkg/chart"
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"helm.sh/helm/v3/pkg/chart/loader"
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"helm.sh/helm/v3/pkg/chartutil"
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)
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// Run `go generate` to download (and patch) upstream helm charts.
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//go:generate ./generateCilium.sh
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//go:generate ./update-csi-charts.sh
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//go:generate ./generateCertManager.sh
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//go:embed all:charts/*
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var helmFS embed.FS
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const (
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ciliumReleaseName = "cilium"
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conServicesReleaseName = "constellation-services"
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conOperatorsReleaseName = "constellation-operators"
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certManagerReleaseName = "cert-manager"
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conServicesPath = "charts/edgeless/constellation-services"
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conOperatorsPath = "charts/edgeless/operators"
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certManagerPath = "charts/cert-manager"
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ciliumPath = "charts/cilium"
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)
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// ChartLoader loads embedded helm charts.
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type ChartLoader struct {
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joinServiceImage string
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kmsImage string
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ccmImage string
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cnmImage string
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autoscalerImage string
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verificationServiceImage string
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gcpGuestAgentImage string
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konnectivityImage string
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constellationOperatorImage string
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nodeMaintenanceOperatorImage string
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}
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// NewLoader creates a new ChartLoader.
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func NewLoader(csp cloudprovider.Provider, k8sVersion versions.ValidK8sVersion) *ChartLoader {
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var ccmImage, cnmImage string
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switch csp {
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case cloudprovider.AWS:
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ccmImage = versions.VersionConfigs[k8sVersion].CloudControllerManagerImageAWS
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case cloudprovider.Azure:
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ccmImage = versions.VersionConfigs[k8sVersion].CloudControllerManagerImageAzure
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cnmImage = versions.VersionConfigs[k8sVersion].CloudNodeManagerImageAzure
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case cloudprovider.GCP:
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ccmImage = versions.VersionConfigs[k8sVersion].CloudControllerManagerImageGCP
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}
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return &ChartLoader{
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joinServiceImage: versions.JoinImage,
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kmsImage: versions.KmsImage,
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ccmImage: ccmImage,
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cnmImage: cnmImage,
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autoscalerImage: versions.VersionConfigs[k8sVersion].ClusterAutoscalerImage,
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verificationServiceImage: versions.VerificationImage,
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gcpGuestAgentImage: versions.GcpGuestImage,
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konnectivityImage: versions.KonnectivityAgentImage,
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constellationOperatorImage: versions.ConstellationOperatorImage,
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nodeMaintenanceOperatorImage: versions.NodeMaintenanceOperatorImage,
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}
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}
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// Load the embedded helm charts.
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func (i *ChartLoader) Load(config *config.Config, conformanceMode bool, masterSecret, salt []byte) ([]byte, error) {
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ciliumRelease, err := i.loadCilium(config.GetProvider(), conformanceMode)
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if err != nil {
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return nil, fmt.Errorf("loading cilium: %w", err)
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}
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certManagerRelease, err := i.loadCertManager()
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if err != nil {
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return nil, fmt.Errorf("loading cilium: %w", err)
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}
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operatorRelease, err := i.loadOperators(config.GetProvider())
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if err != nil {
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return nil, fmt.Errorf("loading operators: %w", err)
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}
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conServicesRelease, err := i.loadConstellationServices(config, masterSecret, salt)
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if err != nil {
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return nil, fmt.Errorf("loading constellation-services: %w", err)
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}
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releases := helm.Releases{Cilium: ciliumRelease, CertManager: certManagerRelease, Operators: operatorRelease, ConstellationServices: conServicesRelease}
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rel, err := json.Marshal(releases)
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if err != nil {
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return nil, err
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}
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return rel, nil
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}
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func (i *ChartLoader) loadCilium(csp cloudprovider.Provider, conformanceMode bool) (helm.Release, error) {
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chart, err := loadChartsDir(helmFS, ciliumPath)
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if err != nil {
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return helm.Release{}, fmt.Errorf("loading cilium chart: %w", err)
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}
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values, err := i.loadCiliumValues(csp, conformanceMode)
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if err != nil {
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return helm.Release{}, err
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}
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chartRaw, err := i.marshalChart(chart)
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if err != nil {
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return helm.Release{}, fmt.Errorf("packaging cilium chart: %w", err)
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}
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return helm.Release{Chart: chartRaw, Values: values, ReleaseName: ciliumReleaseName, Wait: false}, nil
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}
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// loadCiliumHelper is used to separate the marshalling step from the loading step.
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// This reduces the time unit tests take to execute.
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func (i *ChartLoader) loadCiliumValues(csp cloudprovider.Provider, conformanceMode bool) (map[string]any, error) {
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var values map[string]any
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switch csp {
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case cloudprovider.AWS:
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values = awsVals
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case cloudprovider.Azure:
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values = azureVals
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case cloudprovider.GCP:
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values = gcpVals
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case cloudprovider.QEMU:
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values = qemuVals
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default:
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return nil, fmt.Errorf("unknown csp: %s", csp)
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}
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if conformanceMode {
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values["kubeProxyReplacementHealthzBindAddr"] = ""
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values["kubeProxyReplacement"] = "partial"
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values["sessionAffinity"] = true
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values["cni"] = map[string]any{
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"chainingMode": "portmap",
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}
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}
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return values, nil
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}
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func (i *ChartLoader) loadCertManager() (helm.Release, error) {
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chart, err := loadChartsDir(helmFS, certManagerPath)
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if err != nil {
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return helm.Release{}, fmt.Errorf("loading cert-manager chart: %w", err)
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}
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values := i.loadCertManagerValues()
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chartRaw, err := i.marshalChart(chart)
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if err != nil {
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return helm.Release{}, fmt.Errorf("packaging cert-manager chart: %w", err)
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}
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return helm.Release{Chart: chartRaw, Values: values, ReleaseName: certManagerReleaseName, Wait: false}, nil
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}
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// loadCertManagerHelper is used to separate the marshalling step from the loading step.
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// This reduces the time unit tests take to execute.
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func (i *ChartLoader) loadCertManagerValues() map[string]any {
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return map[string]any{
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"installCRDs": true,
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"prometheus": map[string]any{
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"enabled": false,
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},
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"tolerations": []map[string]any{
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{
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"key": "node-role.kubernetes.io/control-plane",
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"effect": "NoSchedule",
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"operator": "Exists",
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},
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{
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"key": "node-role.kubernetes.io/master",
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"effect": "NoSchedule",
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"operator": "Exists",
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},
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},
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"webhook": map[string]any{
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"tolerations": []map[string]any{
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{
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"key": "node-role.kubernetes.io/control-plane",
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"effect": "NoSchedule",
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"operator": "Exists",
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},
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{
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"key": "node-role.kubernetes.io/master",
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"effect": "NoSchedule",
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"operator": "Exists",
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},
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},
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},
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"cainjector": map[string]any{
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"tolerations": []map[string]any{
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{
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"key": "node-role.kubernetes.io/control-plane",
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"effect": "NoSchedule",
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"operator": "Exists",
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},
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{
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"key": "node-role.kubernetes.io/master",
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"effect": "NoSchedule",
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"operator": "Exists",
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},
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},
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},
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"startupapicheck": map[string]any{
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"timeout": "5m",
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"extraArgs": []string{
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"--verbose",
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},
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"tolerations": []map[string]any{
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{
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"key": "node-role.kubernetes.io/control-plane",
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"effect": "NoSchedule",
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"operator": "Exists",
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},
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{
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"key": "node-role.kubernetes.io/master",
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"effect": "NoSchedule",
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"operator": "Exists",
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},
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},
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},
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}
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}
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func (i *ChartLoader) loadOperators(csp cloudprovider.Provider) (helm.Release, error) {
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chart, err := loadChartsDir(helmFS, conOperatorsPath)
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if err != nil {
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return helm.Release{}, fmt.Errorf("loading operators chart: %w", err)
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}
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values, err := i.loadOperatorsValues(csp)
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if err != nil {
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return helm.Release{}, err
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}
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chartRaw, err := i.marshalChart(chart)
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if err != nil {
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return helm.Release{}, fmt.Errorf("packaging operators chart: %w", err)
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}
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return helm.Release{Chart: chartRaw, Values: values, ReleaseName: conOperatorsReleaseName, Wait: false}, nil
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}
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// loadOperatorsHelper is used to separate the marshalling step from the loading step.
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// This reduces the time unit tests take to execute.
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func (i *ChartLoader) loadOperatorsValues(csp cloudprovider.Provider) (map[string]any, error) {
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values := map[string]any{
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"constellation-operator": map[string]any{
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"controllerManager": map[string]any{
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"manager": map[string]any{
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"image": i.constellationOperatorImage,
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},
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},
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},
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"node-maintenance-operator": map[string]any{
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"controllerManager": map[string]any{
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"manager": map[string]any{
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"image": i.nodeMaintenanceOperatorImage,
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},
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},
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},
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}
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switch csp {
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case cloudprovider.Azure:
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conOpVals, ok := values["constellation-operator"].(map[string]any)
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if !ok {
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return nil, errors.New("invalid constellation-operator values")
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}
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conOpVals["csp"] = "Azure"
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values["tags"] = map[string]any{
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"Azure": true,
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}
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case cloudprovider.GCP:
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conOpVals, ok := values["constellation-operator"].(map[string]any)
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if !ok {
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return nil, errors.New("invalid constellation-operator values")
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}
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conOpVals["csp"] = "GCP"
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values["tags"] = map[string]any{
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"GCP": true,
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}
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case cloudprovider.QEMU:
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conOpVals, ok := values["constellation-operator"].(map[string]any)
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if !ok {
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return nil, errors.New("invalid constellation-operator values")
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}
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conOpVals["csp"] = "QEMU"
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values["tags"] = map[string]any{
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"QEMU": true,
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}
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case cloudprovider.AWS:
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conOpVals, ok := values["constellation-operator"].(map[string]any)
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if !ok {
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return nil, errors.New("invalid constellation-operator values")
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}
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conOpVals["csp"] = "AWS"
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values["tags"] = map[string]any{
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"AWS": true,
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}
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}
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return values, nil
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}
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// loadConstellationServices loads the constellation-services chart from the embed.FS,
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// marshals it into a helm-package .tgz and sets the values that can be set in the CLI.
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func (i *ChartLoader) loadConstellationServices(config *config.Config, masterSecret, salt []byte) (helm.Release, error) {
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chart, err := loadChartsDir(helmFS, conServicesPath)
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if err != nil {
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return helm.Release{}, fmt.Errorf("loading constellation-services chart: %w", err)
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}
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values, err := i.loadConstellationServicesValues(config, masterSecret, salt)
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if err != nil {
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return helm.Release{}, err
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}
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chartRaw, err := i.marshalChart(chart)
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if err != nil {
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return helm.Release{}, fmt.Errorf("packaging constellation-services chart: %w", err)
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}
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return helm.Release{Chart: chartRaw, Values: values, ReleaseName: conServicesReleaseName, Wait: false}, nil
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}
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// loadConstellationServicesHelper is used to separate the marshalling step from the loading step.
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// This reduces the time unit tests take to execute.
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func (i *ChartLoader) loadConstellationServicesValues(config *config.Config, masterSecret, salt []byte) (map[string]any, error) {
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csp := config.GetProvider()
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values := map[string]any{
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"global": map[string]any{
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"kmsPort": constants.KMSPort,
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"serviceBasePath": constants.ServiceBasePath,
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"joinConfigCMName": constants.JoinConfigMap,
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"k8sVersionCMName": constants.K8sVersionConfigMapName,
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"internalCMName": constants.InternalConfigMap,
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},
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"kms": map[string]any{
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"image": i.kmsImage,
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"masterSecret": base64.StdEncoding.EncodeToString(masterSecret),
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"salt": base64.StdEncoding.EncodeToString(salt),
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"saltKeyName": constants.ConstellationSaltKey,
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"masterSecretKeyName": constants.ConstellationMasterSecretKey,
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"masterSecretName": constants.ConstellationMasterSecretStoreName,
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"measurementsFilename": constants.MeasurementsFilename,
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},
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"join-service": map[string]any{
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"csp": csp.String(),
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"image": i.joinServiceImage,
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},
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"ccm": map[string]any{
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"csp": csp.String(),
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},
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"autoscaler": map[string]any{
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"csp": csp.String(),
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"image": i.autoscalerImage,
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},
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"verification-service": map[string]any{
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"csp": csp.String(),
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"image": i.verificationServiceImage,
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},
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"gcp-guest-agent": map[string]any{
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"image": i.gcpGuestAgentImage,
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},
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"konnectivity": map[string]any{
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"image": i.konnectivityImage,
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},
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}
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switch csp {
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case cloudprovider.Azure:
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joinServiceVals, ok := values["join-service"].(map[string]any)
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if !ok {
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return nil, errors.New("invalid join-service values")
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}
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joinServiceVals["enforceIdKeyDigest"] = config.EnforcesIDKeyDigest()
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ccmVals, ok := values["ccm"].(map[string]any)
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if !ok {
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return nil, errors.New("invalid ccm values")
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}
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ccmVals["Azure"] = map[string]any{
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"image": i.ccmImage,
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}
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values["cnm"] = map[string]any{
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"image": i.cnmImage,
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}
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values["azure"] = map[string]any{
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"deployCSIDriver": config.DeployCSIDriver(),
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}
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values["azuredisk-csi-driver"] = map[string]any{
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"node": map[string]any{
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"kmsPort": constants.KMSPort,
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"kmsNamespace": "", // empty namespace means we use the release namespace
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},
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}
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values["tags"] = map[string]any{
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"Azure": true,
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}
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case cloudprovider.GCP:
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ccmVals, ok := values["ccm"].(map[string]any)
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if !ok {
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return nil, errors.New("invalid ccm values")
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}
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ccmVals["GCP"] = map[string]any{
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"image": i.ccmImage,
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}
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values["gcp"] = map[string]any{
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"deployCSIDriver": config.DeployCSIDriver(),
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}
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values["gcp-compute-persistent-disk-csi-driver"] = map[string]any{
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"csiNode": map[string]any{
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"kmsPort": constants.KMSPort,
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"kmsNamespace": "", // empty namespace means we use the release namespace
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},
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}
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values["tags"] = map[string]any{
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"GCP": true,
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}
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case cloudprovider.QEMU:
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values["tags"] = map[string]interface{}{
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"QEMU": true,
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}
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case cloudprovider.AWS:
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ccmVals, ok := values["ccm"].(map[string]any)
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if !ok {
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return nil, errors.New("invalid ccm values")
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}
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ccmVals["AWS"] = map[string]any{
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"image": i.ccmImage,
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}
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values["tags"] = map[string]any{
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"AWS": true,
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}
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}
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return values, nil
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}
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// marshalChart takes a Chart object, packages it to a temporary file and returns the content of that file.
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// We currently need to take this approach of marshaling as dependencies are not marshaled correctly with json.Marshal.
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// This stems from the fact that chart.Chart does not export the dependencies property.
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func (i *ChartLoader) marshalChart(chart *chart.Chart) ([]byte, error) {
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// A separate tmpdir path is necessary since during unit testing multiple go routines are accessing the same path, possibly deleting files for other routines.
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tmpDirPath, err := os.MkdirTemp("", "*")
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defer os.Remove(tmpDirPath)
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if err != nil {
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return nil, fmt.Errorf("creating tmp dir: %w", err)
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}
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path, err := chartutil.Save(chart, tmpDirPath)
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defer os.Remove(path)
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if err != nil {
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return nil, fmt.Errorf("chartutil save: %w", err)
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}
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chartRaw, err := os.ReadFile(path)
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if err != nil {
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return nil, fmt.Errorf("reading packaged chart: %w", err)
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}
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return chartRaw, nil
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}
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// taken from loader.LoadDir from the helm go module
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// loadChartsDir loads from a directory.
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//
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// This loads charts only from directories.
|
|
func loadChartsDir(efs embed.FS, dir string) (*chart.Chart, error) {
|
|
utf8bom := []byte{0xEF, 0xBB, 0xBF}
|
|
// Just used for errors.
|
|
c := &chart.Chart{}
|
|
|
|
rules := ignore.Empty()
|
|
ifile, err := efs.ReadFile(filepath.Join(dir, ignore.HelmIgnore))
|
|
if err == nil {
|
|
r, err := ignore.Parse(bytes.NewReader(ifile))
|
|
if err != nil {
|
|
return c, err
|
|
}
|
|
rules = r
|
|
}
|
|
rules.AddDefaults()
|
|
|
|
files := []*loader.BufferedFile{}
|
|
|
|
walk := func(path string, d fs.DirEntry, err error) error {
|
|
n := strings.TrimPrefix(path, dir)
|
|
if n == "" {
|
|
// No need to process top level. Avoid bug with helmignore .* matching
|
|
// empty names. See issue https://github.com/kubernetes/helm/issues/1776.
|
|
return nil
|
|
}
|
|
|
|
// Normalize to / since it will also work on Windows
|
|
n = filepath.ToSlash(n)
|
|
|
|
// Check input err
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
fi, err := d.Info()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if d.IsDir() {
|
|
// Directory-based ignore rules should involve skipping the entire
|
|
// contents of that directory.
|
|
if rules.Ignore(n, fi) {
|
|
return filepath.SkipDir
|
|
}
|
|
return nil
|
|
}
|
|
|
|
// If a .helmignore file matches, skip this file.
|
|
if rules.Ignore(n, fi) {
|
|
return nil
|
|
}
|
|
|
|
// Irregular files include devices, sockets, and other uses of files that
|
|
// are not regular files. In Go they have a file mode type bit set.
|
|
// See https://golang.org/pkg/os/#FileMode for examples.
|
|
if !fi.Mode().IsRegular() {
|
|
return fmt.Errorf("cannot load irregular file %s as it has file mode type bits set", path)
|
|
}
|
|
|
|
data, err := efs.ReadFile(path)
|
|
if err != nil {
|
|
return errors.Wrapf(err, "error reading %s", n)
|
|
}
|
|
|
|
data = bytes.TrimPrefix(data, utf8bom)
|
|
n = strings.TrimPrefix(n, "/")
|
|
|
|
files = append(files, &loader.BufferedFile{Name: n, Data: data})
|
|
return nil
|
|
}
|
|
|
|
if err := fs.WalkDir(efs, dir, walk); err != nil {
|
|
return c, err
|
|
}
|
|
|
|
return loader.LoadFiles(files)
|
|
}
|