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Sanitize pod's step label (#3275)

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Closes #3272
This commit is contained in:
Thomas Anderson 2024-01-26 15:42:21 +03:00 committed by GitHub
parent 4df88c602e
commit e5c83190c7
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GPG key ID: B5690EEEBB952194
4 changed files with 63 additions and 15 deletions
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23
pipeline/backend/kubernetes/pod.go
View file

@ -36,7 +36,12 @@ const (
)
func mkPod(step *types.Step, config *config, podName, goos string) (*v1.Pod, error) {
meta := podMeta(step, config, podName)
var err error
meta, err := podMeta(step, config, podName)
if err != nil {
return nil, err
}
spec, err := podSpec(step, config)
if err != nil {
@ -68,7 +73,8 @@ func podName(step *types.Step) (string, error) {
return dnsName(podPrefix + step.UUID)
}
func podMeta(step *types.Step, config *config, podName string) metav1.ObjectMeta {
func podMeta(step *types.Step, config *config, podName string) (metav1.ObjectMeta, error) {
var err error
meta := metav1.ObjectMeta{
Name: podName,
Namespace: config.Namespace,
@ -78,7 +84,10 @@ func podMeta(step *types.Step, config *config, podName string) metav1.ObjectMeta
if meta.Labels == nil {
meta.Labels = make(map[string]string, 1)
}
meta.Labels[StepLabel] = step.Name
meta.Labels[StepLabel], err = stepLabel(step)
if err != nil {
return meta, err
}
if step.Type == types.StepTypeService {
meta.Labels[ServiceLabel] = step.Name
@ -97,7 +106,11 @@ func podMeta(step *types.Step, config *config, podName string) metav1.ObjectMeta
}
}
return meta
return meta, nil
}
func stepLabel(step *types.Step) (string, error) {
return toDNSName(step.Name)
}
func podSpec(step *types.Step, config *config) (v1.PodSpec, error) {
@ -224,7 +237,7 @@ func containerPort(port types.Port) v1.ContainerPort {
// Here is the service IPs (placed in /etc/hosts in the Pod)
func hostAliases(extraHosts []types.HostAlias) []v1.HostAlias {
hostAliases := []v1.HostAlias{}
var hostAliases []v1.HostAlias
for _, extraHost := range extraHosts {
hostAlias := hostAlias(extraHost)
hostAliases = append(hostAliases, hostAlias)

27
pipeline/backend/kubernetes/pod_test.go
View file

@ -40,18 +40,27 @@ func TestStepToPodName(t *testing.T) {
name, err := stepToPodName(&types.Step{UUID: "01he8bebctabr3kg", Name: "clone", Type: types.StepTypeClone})
assert.NoError(t, err)
assert.EqualValues(t, "wp-01he8bebctabr3kg", name)
name, err = stepToPodName(&types.Step{UUID: "01he8bebctabr3kg", Name: "clone", Type: types.StepTypeCache})
name, err = stepToPodName(&types.Step{UUID: "01he8bebctabr3kg", Name: "cache", Type: types.StepTypeCache})
assert.NoError(t, err)
assert.EqualValues(t, "wp-01he8bebctabr3kg", name)
name, err = stepToPodName(&types.Step{UUID: "01he8bebctabr3kg", Name: "clone", Type: types.StepTypePlugin})
name, err = stepToPodName(&types.Step{UUID: "01he8bebctabr3kg", Name: "release", Type: types.StepTypePlugin})
assert.NoError(t, err)
assert.EqualValues(t, "wp-01he8bebctabr3kg", name)
name, err = stepToPodName(&types.Step{UUID: "01he8bebctabr3kg", Name: "clone", Type: types.StepTypeCommands})
name, err = stepToPodName(&types.Step{UUID: "01he8bebctabr3kg", Name: "prepare-env", Type: types.StepTypeCommands})
assert.NoError(t, err)
assert.EqualValues(t, "wp-01he8bebctabr3kg", name)
name, err = stepToPodName(&types.Step{UUID: "01he8bebctabr3kg", Name: "clone", Type: types.StepTypeService})
name, err = stepToPodName(&types.Step{UUID: "01he8bebctabr3kg", Name: "postgres", Type: types.StepTypeService})
assert.NoError(t, err)
assert.EqualValues(t, "clone", name)
assert.EqualValues(t, "postgres", name)
}
func TestStepLabel(t *testing.T) {
name, err := stepLabel(&types.Step{Name: "Build image"})
assert.NoError(t, err)
assert.EqualValues(t, "build-image", name)
_, err = stepLabel(&types.Step{Name: ".build.image"})
assert.ErrorIs(t, err, ErrDNSPatternInvalid)
}
func TestTinyPod(t *testing.T) {
@ -133,11 +142,11 @@ func TestTinyPod(t *testing.T) {
}, "wp-01he8bebctabr3kgk0qj36d2me-0", "linux/amd64")
assert.NoError(t, err)
json, err := json.Marshal(pod)
podJSON, err := json.Marshal(pod)
assert.NoError(t, err)
ja := jsonassert.New(t)
ja.Assertf(string(json), expected)
ja.Assertf(string(podJSON), expected)
}
func TestFullPod(t *testing.T) {
@ -336,9 +345,9 @@ func TestFullPod(t *testing.T) {
}, "wp-01he8bebctabr3kgk0qj36d2me-0", "linux/amd64")
assert.NoError(t, err)
json, err := json.Marshal(pod)
podJSON, err := json.Marshal(pod)
assert.NoError(t, err)
ja := jsonassert.New(t)
ja.Assertf(string(json), expected)
ja.Assertf(string(podJSON), expected)
}

11
pipeline/backend/kubernetes/utils.go
View file

@ -31,7 +31,8 @@ var (
`([-a-z0-9]*[a-z0-9])?` + // inside can als contain -
`(\.[a-z0-9]([-a-z0-9]*[a-z0-9])?)*$`, // allow the same pattern as before with dots in between but only one dot
)
ErrDNSPatternInvalid = errors.New("name is not a valid kubernetes DNS name")
dnsDisallowedCharacters = regexp.MustCompile(`[^-^.a-z0-9]+`)
ErrDNSPatternInvalid = errors.New("name is not a valid kubernetes DNS name")
)
func dnsName(i string) (string, error) {
@ -44,6 +45,14 @@ func dnsName(i string) (string, error) {
return res, nil
}
func toDNSName(in string) (string, error) {
lower := strings.ToLower(in)
withoutUnderscores := strings.ReplaceAll(lower, "_", "-")
withoutSpaces := strings.ReplaceAll(withoutUnderscores, " ", "-")
almostDNS := dnsDisallowedCharacters.ReplaceAllString(withoutSpaces, "")
return dnsName(almostDNS)
}
func isImagePullBackOffState(pod *v1.Pod) bool {
for _, containerState := range pod.Status.ContainerStatuses {
if containerState.State.Waiting != nil {

17
pipeline/backend/kubernetes/utils_test.go
View file

@ -54,3 +54,20 @@ func TestDNSName(t *testing.T) {
_, err = dnsName("abc\\def")
assert.ErrorIs(t, err, ErrDNSPatternInvalid)
}
func TestToDnsName(t *testing.T) {
name, err := toDNSName("BUILD_AND_DEPLOY_0")
assert.NoError(t, err)
assert.Equal(t, "build-and-deploy-0", name)
name, err = toDNSName("build and deploy")
assert.NoError(t, err)
assert.Equal(t, "build-and-deploy", name)
name, err = toDNSName("build & deploy")
assert.NoError(t, err)
assert.Equal(t, "build--deploy", name)
_, err = toDNSName("-build-and-deploy")
assert.ErrorIs(t, err, ErrDNSPatternInvalid)
}