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c2da4fd53d
Upgrade Kubernetes libraries to v0.18.0 Add new lazy load KubernetesClientSet to avoid missing kubeconfig error In kubernetes v1.18 kubeconfig validation was added. Minikube and Kind both remove kubeconfig when stopping clusters. This causes and error when running any helm commands because we initialize the client before executing the command. Signed-off-by: Adam Reese <adam@reese.io>
100 lines
2.7 KiB
Go
100 lines
2.7 KiB
Go
/*
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Copyright The Helm Authors.
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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 action
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import (
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"context"
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"fmt"
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"io"
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"time"
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"github.com/pkg/errors"
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v1 "k8s.io/api/core/v1"
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"helm.sh/helm/v3/pkg/release"
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)
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// ReleaseTesting is the action for testing a release.
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//
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// It provides the implementation of 'helm test'.
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type ReleaseTesting struct {
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cfg *Configuration
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Timeout time.Duration
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// Used for fetching logs from test pods
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Namespace string
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}
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// NewReleaseTesting creates a new ReleaseTesting object with the given configuration.
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func NewReleaseTesting(cfg *Configuration) *ReleaseTesting {
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return &ReleaseTesting{
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cfg: cfg,
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}
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}
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// Run executes 'helm test' against the given release.
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func (r *ReleaseTesting) Run(name string) (*release.Release, error) {
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if err := r.cfg.KubeClient.IsReachable(); err != nil {
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return nil, err
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}
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if err := validateReleaseName(name); err != nil {
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return nil, errors.Errorf("releaseTest: Release name is invalid: %s", name)
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}
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// finds the non-deleted release with the given name
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rel, err := r.cfg.Releases.Last(name)
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if err != nil {
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return rel, err
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}
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if err := r.cfg.execHook(rel, release.HookTest, r.Timeout); err != nil {
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r.cfg.Releases.Update(rel)
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return rel, err
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}
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return rel, r.cfg.Releases.Update(rel)
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}
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// GetPodLogs will write the logs for all test pods in the given release into
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// the given writer. These can be immediately output to the user or captured for
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// other uses
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func (r *ReleaseTesting) GetPodLogs(out io.Writer, rel *release.Release) error {
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client, err := r.cfg.KubernetesClientSet()
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if err != nil {
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return errors.Wrap(err, "unable to get kubernetes client to fetch pod logs")
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}
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for _, h := range rel.Hooks {
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for _, e := range h.Events {
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if e == release.HookTest {
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req := client.CoreV1().Pods(r.Namespace).GetLogs(h.Name, &v1.PodLogOptions{})
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logReader, err := req.Stream(context.Background())
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if err != nil {
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return errors.Wrapf(err, "unable to get pod logs for %s", h.Name)
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}
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fmt.Fprintf(out, "POD LOGS: %s\n", h.Name)
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_, err = io.Copy(out, logReader)
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fmt.Fprintln(out)
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if err != nil {
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return errors.Wrapf(err, "unable to write pod logs for %s", h.Name)
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}
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}
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}
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}
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return nil
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}
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