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韩数 edited this page Nov 7, 2023 · 6 revisions

Quick start

1. 安装依赖

$ pip install bamboo-pipeline

2. 项目初始化

由于 bamboo-pipeline 运行时基于 Django 实现，所以需要新建一个 Django 项目：

$ django-admin startproject bamboo_engine_playground
$ cd bamboo_engine_playground

在 bamboo_engine_playground.settings.py 下添加如下配置：

from pipeline.eri.celery.queues import *
from celery import Celery

app = Celery("proj")

app.config_from_object("django.conf:settings")

INSTALLED_APPS = [
    ...
    "pipeline.component_framework",
    "pipeline.eri",
    ...
]

其他可安装的 INSTALLED_APPS:

INSTALLED_APPS = [
    ...
    "pipeline.component_framework",
    "pipeline.variable_framework", # 变量框架
    "pipeline.engine", 
    "pipeline.log", # 日志
    "pipeline.contrib.statistics", # 统计
    "pipeline.contrib.periodic_task", # 周期任务
    "pipeline.contrib.external_plugins", # 远程插件
    "pipeline.contrib.engine_admin", # 引擎管理端
    "pipeline.django_signal_valve", # 信号
    "pipeline.eri",
    ...
]

在 bamboo_engine_playground 目录下初始化数据库：

$ python manage.py migrate

3. 执行流程

首先在 bamboo_engine_playground 目录下启动 celery worker：

$ DJANGO_SETTINGS_MODULE=bamboo_engine_playground.settings celery worker -A bamboo_engine_playground.settings -Q er_execute,er_schedule -l info

创建并执行一个简单的流程：

import time

from bamboo_engine import api
from bamboo_engine.builder import *
from pipeline.eri.runtime import BambooDjangoRuntime

# 使用 builder 构造出流程描述结构
start = EmptyStartEvent()
# 这里先使用 bamboo-pipeline 自带的示例组件，我们会在后续的章节中学习如何自定义组件
act = ServiceActivity(component_code="example_component")
end = EmptyEndEvent()

start.extend(act).extend(end)

pipeline = builder.build_tree(start)

# 执行流程对象
runtime = BambooDjangoRuntime()

# 如果需要忽略流程中的环检查，可以指定为True cycle_tolerate
# api.run_pipeline(runtime=runtime, pipeline=pipeline, cycle_tolerate=True)
api.run_pipeline(runtime=runtime, pipeline=pipeline)

# 等待 1s 后获取流程执行结果
time.sleep(1)

result = api.get_pipeline_states(runtime=runtime, root_id=pipeline["id"])

print(result.data)

随后我们就能够看到流程的状态信息，如下所示，流程中的所有节点已经执行成功：

{'pc31c89e6b85a4e2c8c5db477978c1a57': {'id': 'pc31c89e6b85a4e2c8c5db477978c1a57',
  'state': 'FINISHED',
  'root_id:': 'pc31c89e6b85a4e2c8c5db477978c1a57',
  'parent_id': 'pc31c89e6b85a4e2c8c5db477978c1a57',
  'version': 'vaf47e56f2f31401e979c3c47b2a0c285',
  'loop': 1,
  'retry': 0,
  'skip': False,
  'created_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 688664, tzinfo=<UTC>),
  'started_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 688423, tzinfo=<UTC>),
  'archived_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 775165, tzinfo=<UTC>),
  'children': {'e42035b3f98374062921a191115fc602e': {'id': 'e42035b3f98374062921a191115fc602e',
    'state': 'FINISHED',
    'root_id:': 'pc31c89e6b85a4e2c8c5db477978c1a57',
    'parent_id': 'pc31c89e6b85a4e2c8c5db477978c1a57',
    'version': 've2d0fa10d7d842a1bcac25984620232a',
    'loop': 1,
    'retry': 0,
    'skip': False,
    'created_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 744490, tzinfo=<UTC>),
    'started_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 744308, tzinfo=<UTC>),
    'archived_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 746690, tzinfo=<UTC>)},
   'e327f83de42df4ebfab375c271bf63d29': {'id': 'e327f83de42df4ebfab375c271bf63d29',
    'state': 'FINISHED',
    'root_id:': 'pc31c89e6b85a4e2c8c5db477978c1a57',
    'parent_id': 'pc31c89e6b85a4e2c8c5db477978c1a57',
    'version': 'v893cdc14150d4df5b20f2db32ba142b3',
    'loop': 1,
    'retry': 0,
    'skip': False,
    'created_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 753321, tzinfo=<UTC>),
    'started_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 753122, tzinfo=<UTC>),
    'archived_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 758697, tzinfo=<UTC>)},
   'e6c7d7a3721ca4b19a5a7f3b34d8387bf': {'id': 'e6c7d7a3721ca4b19a5a7f3b34d8387bf',
    'state': 'FINISHED',
    'root_id:': 'pc31c89e6b85a4e2c8c5db477978c1a57',
    'parent_id': 'pc31c89e6b85a4e2c8c5db477978c1a57',
    'version': 'v0c661ee6994d4eb4bdbfe5260f9a9f22',
    'loop': 1,
    'retry': 0,
    'skip': False,
    'created_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 767563, tzinfo=<UTC>),
    'started_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 767384, tzinfo=<UTC>),
    'archived_time': datetime.datetime(2021, 3, 10, 3, 45, 54, 773341, tzinfo=<UTC>)}}}}

恭喜你，你已经成功的创建了一个流程并把它运行起来了！

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