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1.9 KiB
1.9 KiB
| id | title |
|---|---|
| edge | Edges |
Edge is representing an edge between Nodes.
Basic
Edge is an object representing a connection between Nodes with some additional properties.
An edge object contains three attributes: label, color and style which mirror corresponding graphviz edge attributes.
from diagrams import Cluster, Diagram, Edge
from diagrams.onprem.analytics import Spark
from diagrams.onprem.compute import Server
from diagrams.onprem.database import PostgreSQL
from diagrams.onprem.inmemory import Redis
from diagrams.onprem.logging import Fluentd
from diagrams.onprem.monitoring import Grafana, Prometheus
from diagrams.onprem.network import Nginx
from diagrams.onprem.queue import Kafka
with Diagram(name="Advanced Web Service with On-Premise (colored)", show=False):
ingress = Nginx("ingress")
metrics = Prometheus("metric")
metrics << Edge(color="firebrick", style="dashed") << Grafana("monitoring")
with Cluster("Service Cluster"):
grpcsvc = [
Server("grpc1"),
Server("grpc2"),
Server("grpc3")]
with Cluster("Sessions HA"):
master = Redis("session")
master - Edge(color="brown", style="dashed") - Redis("replica") << Edge(label="collect") << metrics
grpcsvc >> Edge(color="brown") >> master
with Cluster("Database HA"):
master = PostgreSQL("users")
master - Edge(color="brown", style="dotted") - PostgreSQL("slave") << Edge(label="collect") << metrics
grpcsvc >> Edge(color="black") >> master
aggregator = Fluentd("logging")
aggregator >> Edge(label="parse") >> Kafka("stream") >> Edge(color="black", style="bold") >> Spark("analytics")
ingress >> Edge(color="darkgreen") << grpcsvc >> Edge(color="darkorange") >> aggregator
