summaryrefslogtreecommitdiff
path: root/doc/api/lint.md
blob: ff7aa2f1fb90c6be7c4e6a320f43512bd91c931d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
---
stage: Verify
group: Pipeline Authoring
info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/engineering/ux/technical-writing/#assignments
---

# CI Lint API **(FREE)**

## Validate the CI YAML configuration

Checks if CI/CD YAML configuration is valid. This endpoint validates basic CI/CD
configuration syntax. It doesn't have any namespace-specific context.

Access to this endpoint does not require authentication when the instance
[allows new sign ups](../user/admin_area/settings/sign_up_restrictions.md#disable-new-sign-ups)
and:

- Does not have an [allowlist or denylist](../user/admin_area/settings/sign_up_restrictions.md#allow-or-deny-sign-ups-using-specific-email-domains).
- Does not [require administrator approval for new sign ups](../user/admin_area/settings/sign_up_restrictions.md#require-administrator-approval-for-new-sign-ups).
- Does not have additional [sign up restrictions](../user/admin_area/settings/sign_up_restrictions.md).

Otherwise, authentication is required.

```plaintext
POST /ci/lint
```

| Attribute  | Type    | Required | Description |
| ---------- | ------- | -------- | -------- |
| `content`              | string     | yes      | The CI/CD configuration content. |
| `include_merged_yaml`  | boolean    | no       | If the [expanded CI/CD configuration](#yaml-expansion) should be included in the response. |
| `include_jobs`  | boolean    | no       | If the list of jobs should be included in the response. This is false by default. |

```shell
curl --header "Content-Type: application/json" --header "PRIVATE-TOKEN: <your_access_token>" "https://gitlab.example.com/api/v4/ci/lint" --data '{"content": "{ \"image\": \"ruby:2.6\", \"services\": [\"postgres\"], \"before_script\": [\"bundle install\", \"bundle exec rake db:create\"], \"variables\": {\"DB_NAME\": \"postgres\"}, \"types\": [\"test\", \"deploy\", \"notify\"], \"rspec\": { \"script\": \"rake spec\", \"tags\": [\"ruby\", \"postgres\"], \"only\": [\"branches\"]}}"}'
```

Be sure to paste the exact contents of your GitLab CI/CD YAML configuration because YAML
is very sensitive about indentation and spacing.

Example responses:

- Valid content:

  ```json
  {
    "status": "valid",
    "errors": [],
    "warnings": []
  }
  ```

- Valid content with warnings:

  ```json
  {
    "status": "valid",
    "errors": [],
    "warnings": ["jobs:job may allow multiple pipelines to run for a single action due to
    `rules:when` clause with no `workflow:rules` - read more:
    https://docs.gitlab.com/ee/ci/troubleshooting.html#pipeline-warnings"]
  }
  ```

- Invalid content:

  ```json
  {
    "status": "invalid",
    "errors": [
      "variables config should be a hash of key value pairs"
    ],
    "warnings": []
  }
  ```

- Without the content attribute:

  ```json
  {
    "error": "content is missing"
  }
  ```

### YAML expansion

> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/29568) in GitLab 13.5.

The CI lint returns an expanded version of the configuration. The expansion does not
work for CI configuration added with [`include: local`](../ci/yaml/index.md#includelocal),
and the [`extends:`](../ci/yaml/index.md#extends) keyword is [not fully supported](https://gitlab.com/gitlab-org/gitlab/-/issues/258843).

Example contents of a `.gitlab-ci.yml` passed to the CI Lint API with
`include_merged_yaml` and `include_jobs` set as true:

```yaml
include:
  remote: 'https://example.com/remote.yaml'

test:
  stage: test
  script:
    - echo 1
```

Example contents of `https://example.com/remote.yaml`:

```yaml
another_test:
  stage: test
  script:
    - echo 2
```

Example response:

```json
{
  "status": "valid",
  "errors": [],
  "merged_yaml": "---\n:another_test:\n  :stage: test\n  :script: echo 2\n:test:\n  :stage: test\n  :script: echo 1\n",
  "jobs": [
    {
      "name":"test",
      "stage":"test",
      "before_script":[],
      "script":["echo 1"],
      "after_script":[],
      "tag_list":[],
      "environment":null,
      "when":"on_success",
      "allow_failure":false,
      "only":{
        "refs":["branches","tags"]
      },
      "except":null
    },
    {
      "name":"another_test",
      "stage":"test",
      "before_script":[],
      "script":["echo 2"],
      "after_script":[],
      "tag_list":[],
      "environment":null,
      "when":"on_success",
      "allow_failure":false,
      "only":{
        "refs":["branches","tags"]
      },
      "except":null
    }
  ]
}
```

## Validate a CI YAML configuration with a namespace

> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/231352) in GitLab 13.6.

Checks if CI/CD YAML configuration is valid. This endpoint has namespace
specific context.

```plaintext
POST /projects/:id/ci/lint
```

| Attribute  | Type    | Required | Description |
| ---------- | ------- | -------- | -------- |
| `content`  | string  | yes      | The CI/CD configuration content. |
| `dry_run`  | boolean | no       | Run [pipeline creation simulation](../ci/lint.md#simulate-a-pipeline), or only do static check. This is false by default. |
| `include_jobs`  | boolean    | no       | If the list of jobs that would exist in a static check or pipeline simulation should be included in the response. This is false by default. |
| `ref`      | string  | no       | When `dry_run` is `true`, sets the branch or tag to use. Defaults to the project's default branch when not set. |

Example request:

```shell
curl --header "Content-Type: application/json" "https://gitlab.example.com/api/v4/projects/:id/ci/lint" --data '{"content": "{ \"image\": \"ruby:2.6\", \"services\": [\"postgres\"], \"before_script\": [\"bundle install\", \"bundle exec rake db:create\"], \"variables\": {\"DB_NAME\": \"postgres\"}, \"types\": [\"test\", \"deploy\", \"notify\"], \"rspec\": { \"script\": \"rake spec\", \"tags\": [\"ruby\", \"postgres\"], \"only\": [\"branches\"]}}"}'
```

Example responses:

- Valid configuration:

  ```json
  {
    "valid": true,
    "merged_yaml": "---\n:test_job:\n  :script: echo 1\n",
    "errors": [],
    "warnings": []
  }
  ```

- Invalid configuration:

  ```json
  {
    "valid": false,
    "merged_yaml": "---\n:test_job:\n  :script: echo 1\n",
    "errors": [
      "jobs config should contain at least one visible job"
    ],
    "warnings": []
  }
  ```

## Validate a project's CI configuration

> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/issues/231352) in GitLab 13.5.

Checks if a project's latest (`HEAD` of the project's default branch)
`.gitlab-ci.yml` configuration is valid. This endpoint uses all namespace
specific data available, including variables, local includes, and so on.

```plaintext
GET /projects/:id/ci/lint
```

| Attribute  | Type    | Required | Description |
| ---------- | ------- | -------- | -------- |
| `dry_run`  | boolean | no       | Run pipeline creation simulation, or only do static check. |
| `include_jobs`  | boolean    | no       | If the list of jobs that would exist in a static check or pipeline simulation should be included in the response. This is false by default. |
| `ref`      | string  | no       | When `dry_run` is `true`, sets the branch or tag to use. Defaults to the project's default branch when not set. |

Example request:

```shell
curl "https://gitlab.example.com/api/v4/projects/:id/ci/lint"
```

Example responses:

- Valid configuration:

```json
{
  "valid": true,
  "merged_yaml": "---\n:test_job:\n  :script: echo 1\n",
  "errors": [],
  "warnings": []
}
```

- Invalid configuration:

```json
{
  "valid": false,
  "merged_yaml": "---\n:test_job:\n  :script: echo 1\n",
  "errors": [
    "jobs config should contain at least one visible job"
  ],
  "warnings": []
}
```

## Use jq to create and process YAML & JSON payloads

To `POST` a YAML configuration to the CI Lint endpoint, it must be properly escaped and JSON encoded.
You can use `jq` and `curl` to escape and upload YAML to the GitLab API.

### Escape YAML for JSON encoding

To escape quotes and encode your YAML in a format suitable for embedding within
a JSON payload, you can use `jq`. For example, create a file named `example-gitlab-ci.yml`:

```yaml
.api_test:
  rules:
    - if: $CI_PIPELINE_SOURCE=="merge_request_event"
      changes:
        - src/api/*
deploy:
  extends:
    - .api_test
  rules:
    - when: manual
      allow_failure: true
  script:
    - echo "hello world"
```

Next, use `jq` to escape and encode the YAML file into JSON:

```shell
jq --raw-input --slurp < example-gitlab-ci.yml
```

To escape and encode an input YAML file (`example-gitlab-ci.yml`), and `POST` it to the
GitLab API using `curl` and `jq` in a one-line command:

```shell
jq --null-input --arg yaml "$(<example-gitlab-ci.yml)" '.content=$yaml' \
| curl "https://gitlab.com/api/v4/ci/lint?include_merged_yaml=true" \
--header 'Content-Type: application/json' \
--data @-
```

### Parse a CI Lint response

To reformat the CI Lint response, you can use `jq`. You can pipe the CI Lint response to `jq`,
or store the API response as a text file and provide it as an argument:

```shell
jq --raw-output '.merged_yaml | fromjson' <your_input_here>
```

Example input:

```json
{"status":"valid","errors":[],"merged_yaml":"---\n:.api_test:\n  :rules:\n  - :if: $CI_PIPELINE_SOURCE==\"merge_request_event\"\n    :changes:\n    - src/api/*\n:deploy:\n  :rules:\n  - :when: manual\n    :allow_failure: true\n  :extends:\n  - \".api_test\"\n  :script:\n  - echo \"hello world\"\n"}
```

Becomes:

```yaml
:.api_test:
  :rules:
  - :if: $CI_PIPELINE_SOURCE=="merge_request_event"
    :changes:
    - src/api/*
:deploy:
  :rules:
  - :when: manual
    :allow_failure: true
  :extends:
  - ".api_test"
  :script:
  - echo "hello world"
```

With a one-line command, you can:

1. Escape the YAML
1. Encode it in JSON
1. POST it to the API with curl
1. Format the response

```shell
jq --null-input --arg yaml "$(<example-gitlab-ci.yml)" '.content=$yaml' \
| curl "https://gitlab.com/api/v4/ci/lint?include_merged_yaml=true" \
--header 'Content-Type: application/json' --data @- \
| jq --raw-output '.merged_yaml | fromjson'
```