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helm/pkg/releasetesting/environment.go

130 lines
3.4 KiB

/*
Copyright The Helm Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package releasetesting
import (
"bytes"
"fmt"
"log"
"time"
v1 "k8s.io/api/core/v1"
"helm.sh/helm/pkg/kube"
"helm.sh/helm/pkg/release"
)
// Environment encapsulates information about where test suite executes and returns results
type Environment struct {
Namespace string
KubeClient kube.Interface
Messages chan *release.TestReleaseResponse
Timeout time.Duration
}
func (env *Environment) createTestPod(test *test) error {
resources, err := env.KubeClient.Build(bytes.NewBufferString(test.manifest))
if err != nil {
return err
}
if _, err := env.KubeClient.Create(resources); err != nil {
test.result.Info = err.Error()
test.result.Status = release.TestRunFailure
return err
}
return nil
}
func (env *Environment) getTestPodStatus(test *test) (v1.PodPhase, error) {
status, err := env.KubeClient.WaitAndGetCompletedPodPhase(test.name, env.Timeout)
if err != nil {
log.Printf("Error getting status for pod %s: %s", test.result.Name, err)
test.result.Info = err.Error()
test.result.Status = release.TestRunUnknown
return status, err
}
return status, err
}
func (env *Environment) streamResult(r *release.TestRun) error {
switch r.Status {
case release.TestRunSuccess:
if err := env.streamSuccess(r.Name); err != nil {
return err
}
case release.TestRunFailure:
if err := env.streamFailed(r.Name); err != nil {
return err
}
default:
if err := env.streamUnknown(r.Name, r.Info); err != nil {
return err
}
}
return nil
}
func (env *Environment) streamRunning(name string) error {
msg := "RUNNING: " + name
return env.streamMessage(msg, release.TestRunRunning)
}
func (env *Environment) streamError(info string) error {
msg := "ERROR: " + info
return env.streamMessage(msg, release.TestRunFailure)
}
func (env *Environment) streamFailed(name string) error {
msg := fmt.Sprintf("FAILED: %s, run `kubectl logs %s --namespace %s` for more info", name, name, env.Namespace)
return env.streamMessage(msg, release.TestRunFailure)
}
func (env *Environment) streamSuccess(name string) error {
msg := fmt.Sprintf("PASSED: %s", name)
return env.streamMessage(msg, release.TestRunSuccess)
}
func (env *Environment) streamUnknown(name, info string) error {
msg := fmt.Sprintf("UNKNOWN: %s: %s", name, info)
return env.streamMessage(msg, release.TestRunUnknown)
}
func (env *Environment) streamMessage(msg string, status release.TestRunStatus) error {
resp := &release.TestReleaseResponse{Msg: msg, Status: status}
env.Messages <- resp
return nil
}
// DeleteTestPods deletes resources given in testManifests
func (env *Environment) DeleteTestPods(testManifests []string) {
for _, testManifest := range testManifests {
resources, err := env.KubeClient.Build(bytes.NewBufferString(testManifest))
if err != nil {
env.streamError(err.Error())
}
_, errs := env.KubeClient.Delete(resources)
if err != nil {
for _, e := range errs {
env.streamError(e.Error())
}
}
}
}