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Add workspace option to pipeline start #826
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,239 @@ | ||
| // Copyright © 2019 The Tekton 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 workspaces | ||
|
|
||
| import ( | ||
| "errors" | ||
| "strings" | ||
|
|
||
| "github.com/tektoncd/pipeline/pkg/apis/pipeline/v1alpha1" | ||
| corev1 "k8s.io/api/core/v1" | ||
| ) | ||
|
|
||
| var ( | ||
| nameParam = "name" | ||
| claimNameParam = "claimName" | ||
| subPathParam = "subPath" | ||
| emptyDirParam = "emptyDir" | ||
| configParam = "config" | ||
| secretParam = "secret" | ||
| configItemParam = "item" | ||
| ) | ||
|
|
||
| const invalidWorkspace = "invalid input format for workspace : " | ||
|
|
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| var errNotFoundParam = errors.New("param not found") | ||
|
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| // Merge merges workspacebinding already in pipelineruns with given options | ||
| func Merge(ws []v1alpha1.WorkspaceBinding, optWS []string) ([]v1alpha1.WorkspaceBinding, | ||
| error) { | ||
| workspaces, err := parseWorkspace(optWS) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| if len(workspaces) == 0 { | ||
| return ws, nil | ||
| } | ||
|
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| for i := range ws { | ||
| if v, ok := workspaces[ws[i].Name]; ok { | ||
| ws[i] = v | ||
| delete(workspaces, v.Name) | ||
| } | ||
| } | ||
|
|
||
| for _, v := range workspaces { | ||
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|
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| ws = append(ws, v) | ||
| } | ||
|
|
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| return ws, nil | ||
| } | ||
|
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| func parseWorkspace(w []string) (map[string]v1alpha1.WorkspaceBinding, error) { | ||
| ws := map[string]v1alpha1.WorkspaceBinding{} | ||
| for _, v := range w { | ||
|
|
||
| r := strings.Split(v, ",") | ||
| name, err := getPar(r, nameParam) | ||
| if err != nil { | ||
| return nil, errors.New("Name not found for workspace") | ||
| } | ||
|
|
||
| wB := v1alpha1.WorkspaceBinding{ | ||
| Name: name, | ||
| } | ||
| nWB := 0 | ||
| subPath, err := getPar(r, subPathParam) | ||
| if err == nil { | ||
| wB.SubPath = subPath | ||
| } else if err != errNotFoundParam { | ||
| return nil, err | ||
| } | ||
|
|
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| err = setWorkspaceConfig(r, &wB) | ||
| if err == nil { | ||
| ws[name] = wB | ||
| nWB++ | ||
| } else if err != errNotFoundParam { | ||
| return nil, err | ||
| } | ||
|
|
||
| err = setWorkspaceSecret(r, &wB) | ||
| if err == nil { | ||
| ws[name] = wB | ||
| nWB++ | ||
| } else if err != errNotFoundParam { | ||
| return nil, err | ||
| } | ||
|
|
||
| err = setWorkspaceEmptyDir(r, &wB) | ||
| if err == nil { | ||
| ws[name] = wB | ||
| nWB++ | ||
| } | ||
|
|
||
| err = setWorkspacePVC(r, &wB) | ||
| if err == nil { | ||
| ws[name] = wB | ||
| nWB++ | ||
| } | ||
| if nWB != 1 { | ||
| return nil, errors.New(invalidWorkspace + v) | ||
| } | ||
| } | ||
| return ws, nil | ||
| } | ||
|
|
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| func setWorkspaceSecret(r []string, wB *v1alpha1.WorkspaceBinding) error { | ||
| secret, err := getPar(r, secretParam) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| items, err := getItems(r) | ||
| if err != nil && err != errNotFoundParam { | ||
| return err | ||
| } | ||
| wB.Secret = &corev1.SecretVolumeSource{ | ||
| SecretName: secret, | ||
| Items: items, | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func setWorkspaceConfig(r []string, wB *v1alpha1.WorkspaceBinding) error { | ||
| config, err := getPar(r, configParam) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| items, err := getItems(r) | ||
| if err != nil && err != errNotFoundParam { | ||
| return err | ||
| } | ||
|
|
||
| wB.ConfigMap = &corev1.ConfigMapVolumeSource{ | ||
| LocalObjectReference: corev1.LocalObjectReference{ | ||
| Name: config}, | ||
| Items: items, | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func getItems(r []string) ([]corev1.KeyToPath, error) { | ||
| var kp []corev1.KeyToPath | ||
| for i := range r { | ||
| if !strings.Contains(r[i], configItemParam) { | ||
| continue | ||
| } | ||
| s := strings.SplitN(r[i], "=", 2) | ||
| if s[0] != configItemParam { | ||
| continue | ||
| } | ||
| if len(s) != 2 { | ||
| return nil, errors.New("invalid item") | ||
| } | ||
| key, path, err := getKeyValue(s[1]) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
| kp = append(kp, corev1.KeyToPath{ | ||
| Key: key, | ||
| Path: path, | ||
| }) | ||
| } | ||
| return kp, nil | ||
| } | ||
|
|
||
| func setWorkspacePVC(r []string, wB *v1alpha1.WorkspaceBinding) error { | ||
| claimName, err := getPar(r, claimNameParam) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| wB.PersistentVolumeClaim = &corev1.PersistentVolumeClaimVolumeSource{ | ||
| ClaimName: claimName, | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func getKeyValue(s string) (string, string, error) { | ||
| r := strings.SplitN(s, "=", 2) | ||
| if len(r) != 2 { | ||
| return "", "", errors.New("invalid key value") | ||
| } | ||
| return r[0], r[1], nil | ||
| } | ||
|
|
||
| func setWorkspaceEmptyDir(r []string, wB *v1alpha1.WorkspaceBinding) error { | ||
| emptyDir, err := getPar(r, emptyDirParam) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| var sM corev1.StorageMedium | ||
| switch emptyDir { | ||
| case "": | ||
| sM = corev1.StorageMediumDefault | ||
| case "Memory": | ||
| sM = corev1.StorageMediumMemory | ||
| case "HugePages": | ||
| sM = corev1.StorageMediumHugePages | ||
| default: | ||
| return errors.New(invalidWorkspace + emptyDirParam) | ||
| } | ||
|
|
||
| wB.EmptyDir = &corev1.EmptyDirVolumeSource{ | ||
| Medium: sM, | ||
| } | ||
| return nil | ||
| } | ||
|
|
||
| func getPar(r []string, par string) (string, error) { | ||
| var p string | ||
| for i := range r { | ||
| if !strings.Contains(r[i], par) { | ||
| continue | ||
| } | ||
| s := strings.SplitN(r[i], "=", 2) | ||
| if s[0] != par { | ||
| continue | ||
| } | ||
| if len(s) != 2 { | ||
| return p, errors.New(invalidWorkspace + r[i]) | ||
| } | ||
| p = s[1] | ||
| return p, nil | ||
| } | ||
| return p, errNotFoundParam | ||
| } | ||
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I think it should be
🤔