Diagrams可以让你通过Python代码来画图:
Diagrams支持非常多的图形。
安装
Diagrams需要Python3.6以上的版本。
他使用Graphviz来渲染图形,所以使用Diagrams需要先安装Graphviz。
在Windows平台,只要把Graphviz的路径引入path就行了。
安装完Graphviz,可以开始安装Diagrams。
使用命令行:
pip install diagrams
第一个Diagrams示例
# diagram.py
from diagrams import Diagram
from diagrams.aws.compute import EC2
from diagrams.aws.database import RDS
from diagrams.aws.network import ELB
with Diagram("Web Service", show=False):
ELB("lb") >> EC2("web") >> RDS("userdb")
程序运行完成后,当前目录会生成一个图片:
打开可以看到Python代码生成的架构图图片:
更多的示例
AWS的工作组
from diagrams import Diagram
from diagrams.aws.compute import EC2
from diagrams.aws.database import RDS
from diagrams.aws.network import ELB
with Diagram("Grouped Workers", show=False, direction="TB"):
ELB("lb") >> [EC2("worker1"),
EC2("worker2"),
EC2("worker3"),
EC2("worker4"),
EC2("worker5")] >> RDS("events")
Web服务集群
from diagrams import Cluster, Diagram
from diagrams.aws.compute import ECS
from diagrams.aws.database import ElastiCache, RDS
from diagrams.aws.network import ELB
from diagrams.aws.network import Route53
with Diagram("Clustered Web Services", show=False):
dns = Route53("dns")
lb = ELB("lb")
with Cluster("Services"):
svc_group = [ECS("web1"),
ECS("web2"),
ECS("web3")]
with Cluster("DB Cluster"):
db_primary = RDS("userdb")
db_primary - [RDS("userdb ro")]
memcached = ElastiCache("memcached")
dns >> lb >> svc_group
svc_group >> db_primary
svc_group >> memcached
AWS事件处理流程
from diagrams import Cluster, Diagram
from diagrams.aws.compute import ECS, EKS, Lambda
from diagrams.aws.database import Redshift
from diagrams.aws.integration import SQS
from diagrams.aws.storage import S3
with Diagram("Event Processing", show=False):
source = EKS("k8s source")
with Cluster("Event Flows"):
with Cluster("Event Workers"):
workers = [ECS("worker1"),
ECS("worker2"),
ECS("worker3")]
queue = SQS("event queue")
with Cluster("Processing"):
handlers = [Lambda("proc1"),
Lambda("proc2"),
Lambda("proc3")]
store = S3("events store")
dw = Redshift("analytics")
source >> workers >> queue >> handlers
handlers >> store
handlers >> dw
GCP(Google Cloud Platform)消息采集系统
from diagrams import Cluster, Diagram
from diagrams.gcp.analytics import BigQuery, Dataflow, PubSub
from diagrams.gcp.compute import AppEngine, Functions
from diagrams.gcp.database import BigTable
from diagrams.gcp.iot import IotCore
from diagrams.gcp.storage import GCS
with Diagram("Message Collecting", show=False):
pubsub = PubSub("pubsub")
with Cluster("Source of Data"):
[IotCore("core1"),
IotCore("core2"),
IotCore("core3")] >> pubsub
with Cluster("Targets"):
with Cluster("Data Flow"):
flow = Dataflow("data flow")
with Cluster("Data Lake"):
flow >> [BigQuery("bq"),
GCS("storage")]
with Cluster("Event Driven"):
with Cluster("Processing"):
flow >> AppEngine("engine") >> BigTable("bigtable")
with Cluster("Serverless"):
flow >> Functions("func") >> AppEngine("appengine")
pubsub >> flow