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| 1 | +/* |
| 2 | +Copyright 2021 The Flux authors |
| 3 | +
|
| 4 | +Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | +you may not use this file except in compliance with the License. |
| 6 | +You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | +Unless required by applicable law or agreed to in writing, software |
| 11 | +distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | +WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | +See the License for the specific language governing permissions and |
| 14 | +limitations under the License. |
| 15 | +*/ |
| 16 | + |
| 17 | +package runner |
| 18 | + |
| 19 | +import ( |
| 20 | + "bytes" |
| 21 | + "encoding/json" |
| 22 | + "reflect" |
| 23 | + "testing" |
| 24 | + |
| 25 | + v1 "k8s.io/apiextensions-apiserver/pkg/apis/apiextensions/v1" |
| 26 | + "sigs.k8s.io/yaml" |
| 27 | + |
| 28 | + "github.com/fluxcd/pkg/apis/kustomize" |
| 29 | + |
| 30 | + v2 "github.com/fluxcd/helm-controller/api/v2beta1" |
| 31 | +) |
| 32 | + |
| 33 | +const replaceImageMock = `apiVersion: v1 |
| 34 | +kind: Pod |
| 35 | +metadata: |
| 36 | + name: image |
| 37 | +spec: |
| 38 | + containers: |
| 39 | + - image: repository/image:tag |
| 40 | +` |
| 41 | + |
| 42 | +const json6902Mock = `apiVersion: v1 |
| 43 | +kind: Pod |
| 44 | +metadata: |
| 45 | + annotations: |
| 46 | + c: foo |
| 47 | + name: json6902 |
| 48 | +` |
| 49 | + |
| 50 | +const strategicMergeMock = `apiVersion: apps/v1 |
| 51 | +kind: Deployment |
| 52 | +metadata: |
| 53 | + name: nginx |
| 54 | +spec: |
| 55 | + template: |
| 56 | + spec: |
| 57 | + containers: |
| 58 | + - name: nginx |
| 59 | + image: nignx:v1.0.0 |
| 60 | +` |
| 61 | + |
| 62 | +func Test_postRendererKustomize_Run(t *testing.T) { |
| 63 | + tests := []struct { |
| 64 | + name string |
| 65 | + renderedManifests string |
| 66 | + patchesStrategicMerge string |
| 67 | + patchesJson6902 string |
| 68 | + images string |
| 69 | + expectManifests string |
| 70 | + expectErr bool |
| 71 | + }{ |
| 72 | + { |
| 73 | + name: "image tag", |
| 74 | + renderedManifests: replaceImageMock, |
| 75 | + images: ` |
| 76 | +- name: repository/image |
| 77 | + newTag: 0.1.0 |
| 78 | +`, |
| 79 | + expectManifests: `apiVersion: v1 |
| 80 | +kind: Pod |
| 81 | +metadata: |
| 82 | + name: image |
| 83 | +spec: |
| 84 | + containers: |
| 85 | + - image: repository/image:0.1.0 |
| 86 | +`, |
| 87 | + }, |
| 88 | + { |
| 89 | + name: "image name", |
| 90 | + renderedManifests: replaceImageMock, |
| 91 | + images: ` |
| 92 | +- name: repository/image |
| 93 | + newName: repository/new-image |
| 94 | +`, |
| 95 | + expectManifests: `apiVersion: v1 |
| 96 | +kind: Pod |
| 97 | +metadata: |
| 98 | + name: image |
| 99 | +spec: |
| 100 | + containers: |
| 101 | + - image: repository/new-image:tag |
| 102 | +`, |
| 103 | + }, |
| 104 | + { |
| 105 | + name: "image digest", |
| 106 | + renderedManifests: replaceImageMock, |
| 107 | + images: ` |
| 108 | +- name: repository/image |
| 109 | + digest: sha256:24a0c4b4a4c0eb97a1aabb8e29f18e917d05abfe1b7a7c07857230879ce7d3d3 |
| 110 | +`, |
| 111 | + expectManifests: `apiVersion: v1 |
| 112 | +kind: Pod |
| 113 | +metadata: |
| 114 | + name: image |
| 115 | +spec: |
| 116 | + containers: |
| 117 | + - image: repository/image@sha256:24a0c4b4a4c0eb97a1aabb8e29f18e917d05abfe1b7a7c07857230879ce7d3d3 |
| 118 | +`, |
| 119 | + }, |
| 120 | + { |
| 121 | + name: "json 6902", |
| 122 | + renderedManifests: json6902Mock, |
| 123 | + patchesJson6902: ` |
| 124 | +- target: |
| 125 | + version: v1 |
| 126 | + kind: Pod |
| 127 | + name: json6902 |
| 128 | + patch: |
| 129 | + - op: test |
| 130 | + path: /metadata/annotations/c |
| 131 | + value: foo |
| 132 | + - op: remove |
| 133 | + path: /metadata/annotations/c |
| 134 | + - op: add |
| 135 | + path: /metadata/annotations/c |
| 136 | + value: [ "foo", "bar" ] |
| 137 | + - op: replace |
| 138 | + path: /metadata/annotations/c |
| 139 | + value: 42 |
| 140 | + - op: move |
| 141 | + from: /metadata/annotations/c |
| 142 | + path: /metadata/annotations/d |
| 143 | + - op: copy |
| 144 | + from: /metadata/annotations/d |
| 145 | + path: /metadata/annotations/e |
| 146 | +`, |
| 147 | + expectManifests: `apiVersion: v1 |
| 148 | +kind: Pod |
| 149 | +metadata: |
| 150 | + annotations: |
| 151 | + d: 42 |
| 152 | + e: 42 |
| 153 | + name: json6902 |
| 154 | +`, |
| 155 | + }, |
| 156 | + { |
| 157 | + name: "strategic merge test", |
| 158 | + renderedManifests: strategicMergeMock, |
| 159 | + patchesStrategicMerge: ` |
| 160 | +- apiVersion: apps/v1 |
| 161 | + kind: Deployment |
| 162 | + metadata: |
| 163 | + name: nginx |
| 164 | + spec: |
| 165 | + template: |
| 166 | + spec: |
| 167 | + containers: |
| 168 | + - name: nginx |
| 169 | + image: nignx:latest |
| 170 | +`, |
| 171 | + expectManifests: `apiVersion: apps/v1 |
| 172 | +kind: Deployment |
| 173 | +metadata: |
| 174 | + name: nginx |
| 175 | +spec: |
| 176 | + template: |
| 177 | + spec: |
| 178 | + containers: |
| 179 | + - image: nignx:latest |
| 180 | + name: nginx |
| 181 | +`, |
| 182 | + }, |
| 183 | + } |
| 184 | + for _, tt := range tests { |
| 185 | + t.Run(tt.name, func(t *testing.T) { |
| 186 | + spec, err := mockKustomize(tt.patchesStrategicMerge, tt.patchesJson6902, tt.images) |
| 187 | + k := &postRendererKustomize{ |
| 188 | + spec: spec, |
| 189 | + } |
| 190 | + gotModifiedManifests, err := k.Run(bytes.NewBufferString(tt.renderedManifests)) |
| 191 | + if (err != nil) != tt.expectErr { |
| 192 | + t.Errorf("Run() error = %v, expectErr %v", err, tt.expectErr) |
| 193 | + return |
| 194 | + } |
| 195 | + if !reflect.DeepEqual(gotModifiedManifests, bytes.NewBufferString(tt.expectManifests)) { |
| 196 | + t.Errorf("Run() gotModifiedManifests = %v, want %v", gotModifiedManifests, tt.expectManifests) |
| 197 | + } |
| 198 | + }) |
| 199 | + } |
| 200 | +} |
| 201 | + |
| 202 | +func mockKustomize(patchesStrategicMerge, patchesJson6902, images string) (*v2.Kustomize, error) { |
| 203 | + b, err := yaml.YAMLToJSON([]byte(patchesStrategicMerge)) |
| 204 | + if err != nil { |
| 205 | + return nil, err |
| 206 | + } |
| 207 | + var strategicMerge []v1.JSON |
| 208 | + if err := json.Unmarshal(b, &strategicMerge); err != nil { |
| 209 | + return nil, err |
| 210 | + } |
| 211 | + var json6902 []kustomize.JSON6902Patch |
| 212 | + if err := yaml.Unmarshal([]byte(patchesJson6902), &json6902); err != nil { |
| 213 | + return nil, err |
| 214 | + } |
| 215 | + var imgs []kustomize.Image |
| 216 | + if err := yaml.Unmarshal([]byte(images), &imgs); err != nil { |
| 217 | + return nil, err |
| 218 | + } |
| 219 | + return &v2.Kustomize{ |
| 220 | + PatchesStrategicMerge: strategicMerge, |
| 221 | + PatchesJSON6902: json6902, |
| 222 | + Images: imgs, |
| 223 | + }, nil |
| 224 | +} |
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