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| [Home](index.md) | ||
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| --- | ||
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| # gRPC generator | ||
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| Full gRPC generator config | ||
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| ```yaml | ||
| gun: | ||
| type: http | ||
| target: '[hostname]:443' | ||
| timeout: 15s | ||
| tls: true | ||
| dial_options: | ||
| timeout: 1s | ||
| authority: string | ||
| answlog: | ||
| enabled: true | ||
| path: ./answ.log | ||
| filter: all # all - all http codes, warning - log 4xx and 5xx, error - log only 5xx. Default: error | ||
| ``` | ||
| --- | ||
| [Home](index.md) |
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| [Home](../index.md) | ||
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| --- | ||
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| # Scenario generator / gRPC | ||
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| - [Configuration](#configuration) | ||
| - [Generator](#generator) | ||
| - [Provider](#provider) | ||
| - [Description of the scenario format](#description-of-the-scenario-format) | ||
| - [General principle](#general-principle) | ||
| - [HCL example](#hcl-example) | ||
| - [YAML example](#yaml-example) | ||
| - [Features](#features) | ||
| - [Calls](#calls) | ||
| - [Templater](#templater) | ||
| - [Variable names in templates](#variable-names-in-templates) | ||
| - [Preprocessors](#preprocessors) | ||
| - [prepare](#prepare) | ||
| - [Postprocessors](#postprocessors) | ||
| - [assert/response](#assertresponse) | ||
| - [Scenarios](#scenarios) | ||
| - [Sources](#sources) | ||
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| ## Configuration | ||
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| You need to use a generator and a provider of type `grpc/scenario` | ||
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| ```yaml | ||
| pools: | ||
| - id: Pool name | ||
| gun: | ||
| type: grpc/scenario | ||
| target: localhost:8888 | ||
| ammo: | ||
| type: grpc/scenario | ||
| file: payload.hcl | ||
| ``` | ||
| ### Generator | ||
| The minimum generator configuration is as follows | ||
| ```yaml | ||
| gun: | ||
| type: http/scenario | ||
| target: localhost:80 | ||
| ``` | ||
| For a scenario gRPC generator, all settings of a regular gRPC generator are supported [gRPC generator](grpc-generator.md) | ||
| ### Provider | ||
| The provider accepts only one parameter - the path to the file with the scenario description | ||
| ```yaml | ||
| ammo: | ||
| type: http/scenario | ||
| file: payload.hcl | ||
| ``` | ||
| Supports file extensions | ||
| - hcl | ||
| - yaml | ||
| - json | ||
| ## Description of the scenario format | ||
| Supports formats | ||
| - hcl | ||
| - yaml | ||
| - json | ||
| ### General principle | ||
| Several scenarios can be described in a single file. A script has a name by which one scenario differs from another. | ||
| A script is a sequence of rpc calls. That is, you will need to describe in the script which calls | ||
| should be executed in what order. | ||
| The Call is a gRPC call. It has standard gRPC call fields plus additional ones. See [Calls](#calls). | ||
| ### HCL example | ||
| ```terraform | ||
| variable_source "users" "file/csv" { | ||
| file = "users.csv" | ||
| fields = ["user_id", "login", "pass"] | ||
| ignore_first_line = true | ||
| delimiter = "," | ||
| } | ||
| variable_source "filter_src" "file/json" { | ||
| file = "filter.json" | ||
| } | ||
| variable_source "variables" "variables" { | ||
| variables = { | ||
| header = "yandex" | ||
| b = "s" | ||
| } | ||
| } | ||
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| call "auth_req" { | ||
| call = "target.TargetService.Auth" | ||
| tag = "auth" | ||
| metadata = { | ||
| "metadata" = "server.proto" | ||
| } | ||
| preprocessor "prepare" { | ||
| mapping = { | ||
| user = "source.users[next]" | ||
| } | ||
| } | ||
| payload = <<EOF | ||
| {"login": "{{.request.auth_req.preprocessor.user.login}}", "pass": "{{.request.auth_req.preprocessor.user.pass}}"} | ||
| EOF | ||
| postprocessor "assert/response" { | ||
| payload = ["token"] | ||
| status_code = 200 | ||
| } | ||
| }} | ||
| } | ||
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| scenario "scenario_name" { | ||
| weight = 1 | ||
| min_waiting_time = 1000 | ||
| requests = [ | ||
| "auth_req", | ||
| ] | ||
| } | ||
| ``` | ||
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| You can also see an example in the tests https://github.com/yandex/pandora/blob/dev/tests/grpc_scenario/testdata/grpc_payload.hcl | ||
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| ### YAML example | ||
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| ```yaml | ||
| variable_sources: | ||
| - type: "file/csv" | ||
| name: "users" | ||
| ignore_first_line: true | ||
| delimiter: "," | ||
| file: "file.csv" | ||
| fields: ["user_id", "login", "pass"] | ||
| - type: "file/json" | ||
| name: "filter_src" | ||
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| calls: | ||
| - name: "auth_req" | ||
| call: 'target.TargetService.Auth' | ||
| tag: auth | ||
| method: POST | ||
| metadata: | ||
| metadata: "server.proto" | ||
| preprocessors: | ||
| - type: prepare | ||
| mapping: | ||
| new_var: source.var_name[next].0 | ||
| payload: '{"login": "{{.request.auth_req.preprocessor.user.login}}", "pass": "{{.request.auth_req.preprocessor.user.pass}}"}' | ||
| postprocessors: | ||
| - type: assert/response | ||
| payload: ["token"] | ||
| status_code: 200 | ||
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| scenarios: | ||
| - name: scenario_name | ||
| weight: 1 | ||
| min_waiting_time: 1000 | ||
| requests: [ | ||
| auth_req | ||
| ] | ||
| ``` | ||
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| ## Features | ||
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| ### Calls | ||
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| Fields | ||
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| - call | ||
| - tag | ||
| - metadata | ||
| - preprocessors | ||
| - payload | ||
| - postprocessors | ||
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| ### Templater | ||
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| The fields `metadata', `payload` are templated. | ||
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| The standard go template is used. | ||
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| #### Variable names in templates | ||
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| Variable names have the full path of their definition. | ||
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| For example | ||
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| Variable `users` from source `user_file` - `{% raw %}{{{.source.user_file.users}}{% endraw %}` | ||
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| Variable `item` from the `list_req` call preprocessor - `{% raw %}{{{.request.list_req.preprocessor.item}}{% endraw %}` | ||
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| > Note | ||
| > To maintain similarity with http scripts, the response section from the grpc call is saved to the `postprocessor` section | ||
| Variable `token` from the `list_req` call is `{% raw %}{{{.request.list_req.postprocessor.token}}{% endraw %}` | ||
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| #### Preprocessors | ||
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| Preprocessor - actions are performed before templating | ||
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| ##### prepare | ||
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| It is used for creating new variable mapping | ||
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| The preprocessor has the ability to work with arrays using modifiers | ||
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| - next | ||
| - last | ||
| - rand | ||
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| ##### yaml | ||
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| ```yaml | ||
| calls: | ||
| - name: req_name | ||
| ... | ||
| preprocessors: | ||
| - type: prepare | ||
| mapping: | ||
| user_id: source.users[next].id | ||
| ``` | ||
| ##### hcl | ||
| ```terraform | ||
| call "req_name" { | ||
| preprocessor "prepare" { | ||
| mapping = { | ||
| user_id = "source.users[next].id" | ||
| } | ||
| } | ||
| } | ||
| ``` | ||
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| #### Postprocessors | ||
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| ##### assert/response | ||
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| Checks header and body content | ||
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| Upon assertion, further scenario execution is dropped | ||
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| ```terraform | ||
| postprocessor "assert/response" { | ||
| payload = ["token"] | ||
| status_code = 200 | ||
| } | ||
| ``` | ||
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| ### Scenarios | ||
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| This section repeats the same [scenario in HTTP generator](./scenario-http-generator.md#scenarios) | ||
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| The minimum fields for the script are name and list of requests | ||
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| ```terraform | ||
| scenario "scenario_name" { | ||
| requests = [ | ||
| "list_call", | ||
| "order_call", | ||
| "order_call", | ||
| "order_call" | ||
| ] | ||
| } | ||
| ``` | ||
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| More - [scenario in HTTP generator](./scenario-http-generator.md#scenarios) | ||
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| ### Sources | ||
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| Follow - [Variable sources](scenario/variable_source.md) | ||
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| --- | ||
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| [Home](../index.md) |
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