mirror of https://github.com/helm/helm
Adam Reese
6 years ago
parent
5715ee43d6
commit
e9478d8f84
@ -1,91 +0,0 @@
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/*
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Copyright 2017 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package rudder // import "k8s.io/helm/pkg/rudder"
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import (
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"fmt"
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"golang.org/x/net/context"
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"google.golang.org/grpc"
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rudderAPI "k8s.io/helm/pkg/proto/hapi/rudder"
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)
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// GrpcPort specifies port on which rudder will spawn a server
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const (
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GrpcPort = 10001
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)
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var grpcAddr = fmt.Sprintf("127.0.0.1:%d", GrpcPort)
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// InstallRelease calls Rudder InstallRelease method which should create provided release
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func InstallRelease(rel *rudderAPI.InstallReleaseRequest) (*rudderAPI.InstallReleaseResponse, error) {
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//TODO(mkwiek): parametrize this
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conn, err := grpc.Dial(grpcAddr, grpc.WithInsecure())
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if err != nil {
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return nil, err
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}
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defer conn.Close()
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client := rudderAPI.NewReleaseModuleServiceClient(conn)
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return client.InstallRelease(context.Background(), rel)
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}
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// UpgradeRelease calls Rudder UpgradeRelease method which should perform update
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func UpgradeRelease(req *rudderAPI.UpgradeReleaseRequest) (*rudderAPI.UpgradeReleaseResponse, error) {
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conn, err := grpc.Dial(grpcAddr, grpc.WithInsecure())
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if err != nil {
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return nil, err
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}
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defer conn.Close()
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client := rudderAPI.NewReleaseModuleServiceClient(conn)
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return client.UpgradeRelease(context.Background(), req)
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}
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// RollbackRelease calls Rudder RollbackRelease method which should perform update
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func RollbackRelease(req *rudderAPI.RollbackReleaseRequest) (*rudderAPI.RollbackReleaseResponse, error) {
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conn, err := grpc.Dial(grpcAddr, grpc.WithInsecure())
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if err != nil {
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return nil, err
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}
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defer conn.Close()
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client := rudderAPI.NewReleaseModuleServiceClient(conn)
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return client.RollbackRelease(context.Background(), req)
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}
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// ReleaseStatus calls Rudder ReleaseStatus method which should perform update
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func ReleaseStatus(req *rudderAPI.ReleaseStatusRequest) (*rudderAPI.ReleaseStatusResponse, error) {
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conn, err := grpc.Dial(grpcAddr, grpc.WithInsecure())
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if err != nil {
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return nil, err
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}
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defer conn.Close()
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client := rudderAPI.NewReleaseModuleServiceClient(conn)
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return client.ReleaseStatus(context.Background(), req)
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}
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// DeleteRelease calls Rudder DeleteRelease method which should uninstall provided release
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func DeleteRelease(rel *rudderAPI.DeleteReleaseRequest) (*rudderAPI.DeleteReleaseResponse, error) {
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conn, err := grpc.Dial(grpcAddr, grpc.WithInsecure())
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if err != nil {
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return nil, err
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}
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defer conn.Close()
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client := rudderAPI.NewReleaseModuleServiceClient(conn)
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return client.DeleteRelease(context.Background(), rel)
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}
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@ -1,183 +0,0 @@
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/*
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Copyright 2017 The Kubernetes Authors All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package tiller
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import (
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"bytes"
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"errors"
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"fmt"
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"log"
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"strings"
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"k8s.io/kubernetes/pkg/client/clientset_generated/internalclientset"
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"k8s.io/helm/pkg/chartutil"
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"k8s.io/helm/pkg/kube"
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"k8s.io/helm/pkg/proto/hapi/release"
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rudderAPI "k8s.io/helm/pkg/proto/hapi/rudder"
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"k8s.io/helm/pkg/proto/hapi/services"
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relutil "k8s.io/helm/pkg/releaseutil"
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"k8s.io/helm/pkg/rudder"
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"k8s.io/helm/pkg/tiller/environment"
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)
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// ReleaseModule is an interface that allows ReleaseServer to run operations on release via either local implementation or Rudder service
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type ReleaseModule interface {
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Create(r *release.Release, req *services.InstallReleaseRequest, env *environment.Environment) error
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Update(current, target *release.Release, req *services.UpdateReleaseRequest, env *environment.Environment) error
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Rollback(current, target *release.Release, req *services.RollbackReleaseRequest, env *environment.Environment) error
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Status(r *release.Release, req *services.GetReleaseStatusRequest, env *environment.Environment) (string, error)
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Delete(r *release.Release, req *services.UninstallReleaseRequest, env *environment.Environment) (string, []error)
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}
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// LocalReleaseModule is a local implementation of ReleaseModule
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type LocalReleaseModule struct {
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clientset internalclientset.Interface
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}
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// Create creates a release via kubeclient from provided environment
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func (m *LocalReleaseModule) Create(r *release.Release, req *services.InstallReleaseRequest, env *environment.Environment) error {
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b := bytes.NewBufferString(r.Manifest)
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return env.KubeClient.Create(r.Namespace, b, req.Timeout, req.Wait)
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}
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// Update performs an update from current to target release
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func (m *LocalReleaseModule) Update(current, target *release.Release, req *services.UpdateReleaseRequest, env *environment.Environment) error {
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c := bytes.NewBufferString(current.Manifest)
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t := bytes.NewBufferString(target.Manifest)
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return env.KubeClient.Update(target.Namespace, c, t, req.Force, req.Recreate, req.Timeout, req.Wait)
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}
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// Rollback performs a rollback from current to target release
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func (m *LocalReleaseModule) Rollback(current, target *release.Release, req *services.RollbackReleaseRequest, env *environment.Environment) error {
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c := bytes.NewBufferString(current.Manifest)
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t := bytes.NewBufferString(target.Manifest)
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return env.KubeClient.Update(target.Namespace, c, t, req.Force, req.Recreate, req.Timeout, req.Wait)
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}
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// Status returns kubectl-like formatted status of release objects
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func (m *LocalReleaseModule) Status(r *release.Release, req *services.GetReleaseStatusRequest, env *environment.Environment) (string, error) {
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return env.KubeClient.Get(r.Namespace, bytes.NewBufferString(r.Manifest))
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}
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// Delete deletes the release and returns manifests that were kept in the deletion process
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func (m *LocalReleaseModule) Delete(rel *release.Release, req *services.UninstallReleaseRequest, env *environment.Environment) (kept string, errs []error) {
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vs, err := GetVersionSet(m.clientset.Discovery())
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if err != nil {
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return rel.Manifest, []error{fmt.Errorf("Could not get apiVersions from Kubernetes: %v", err)}
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}
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return DeleteRelease(rel, vs, env.KubeClient)
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}
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// RemoteReleaseModule is a ReleaseModule which calls Rudder service to operate on a release
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type RemoteReleaseModule struct{}
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// Create calls rudder.InstallRelease
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func (m *RemoteReleaseModule) Create(r *release.Release, req *services.InstallReleaseRequest, env *environment.Environment) error {
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request := &rudderAPI.InstallReleaseRequest{Release: r}
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_, err := rudder.InstallRelease(request)
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return err
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}
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// Update calls rudder.UpgradeRelease
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func (m *RemoteReleaseModule) Update(current, target *release.Release, req *services.UpdateReleaseRequest, env *environment.Environment) error {
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upgrade := &rudderAPI.UpgradeReleaseRequest{
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Current: current,
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Target: target,
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Recreate: req.Recreate,
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Timeout: req.Timeout,
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Wait: req.Wait,
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Force: req.Force,
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}
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_, err := rudder.UpgradeRelease(upgrade)
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return err
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}
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// Rollback calls rudder.Rollback
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func (m *RemoteReleaseModule) Rollback(current, target *release.Release, req *services.RollbackReleaseRequest, env *environment.Environment) error {
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rollback := &rudderAPI.RollbackReleaseRequest{
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Current: current,
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Target: target,
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Recreate: req.Recreate,
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Timeout: req.Timeout,
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Wait: req.Wait,
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}
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_, err := rudder.RollbackRelease(rollback)
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return err
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}
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// Status returns status retrieved from rudder.ReleaseStatus
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func (m *RemoteReleaseModule) Status(r *release.Release, req *services.GetReleaseStatusRequest, env *environment.Environment) (string, error) {
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statusRequest := &rudderAPI.ReleaseStatusRequest{Release: r}
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resp, err := rudder.ReleaseStatus(statusRequest)
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if resp == nil {
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return "", err
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}
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return resp.Info.Status.Resources, err
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}
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// Delete calls rudder.DeleteRelease
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func (m *RemoteReleaseModule) Delete(r *release.Release, req *services.UninstallReleaseRequest, env *environment.Environment) (string, []error) {
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deleteRequest := &rudderAPI.DeleteReleaseRequest{Release: r}
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resp, err := rudder.DeleteRelease(deleteRequest)
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errs := make([]error, 0)
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result := ""
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if err != nil {
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errs = append(errs, err)
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}
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if resp != nil {
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result = resp.Release.Manifest
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}
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return result, errs
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}
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// DeleteRelease is a helper that allows Rudder to delete a release without exposing most of Tiller inner functions
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func DeleteRelease(rel *release.Release, vs chartutil.VersionSet, kubeClient environment.KubeClient) (kept string, errs []error) {
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manifests := relutil.SplitManifests(rel.Manifest)
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_, files, err := sortManifests(manifests, vs, UninstallOrder)
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if err != nil {
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// We could instead just delete everything in no particular order.
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// FIXME: One way to delete at this point would be to try a label-based
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// deletion. The problem with this is that we could get a false positive
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// and delete something that was not legitimately part of this release.
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return rel.Manifest, []error{fmt.Errorf("corrupted release record. You must manually delete the resources: %s", err)}
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}
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filesToKeep, filesToDelete := filterManifestsToKeep(files)
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if len(filesToKeep) > 0 {
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kept = summarizeKeptManifests(filesToKeep, kubeClient, rel.Namespace)
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}
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errs = []error{}
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for _, file := range filesToDelete {
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b := bytes.NewBufferString(strings.TrimSpace(file.Content))
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if b.Len() == 0 {
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continue
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}
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if err := kubeClient.Delete(rel.Namespace, b); err != nil {
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log.Printf("uninstall: Failed deletion of %q: %s", rel.Name, err)
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if err == kube.ErrNoObjectsVisited {
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// Rewrite the message from "no objects visited"
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err = errors.New("object not found, skipping delete")
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}
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errs = append(errs, err)
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}
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}
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return kept, errs
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}
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