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draw.io Diagram |
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border | true |
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diagramName | us-to-us intent |
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simpleViewer | false |
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width | |
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links | auto |
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tbstyle | top |
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lbox | true |
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diagramWidth | 1136 |
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revision | 59 |
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NOTE - For this scenario, the default mesh wide policy must be set to "PERMISSIVE" on both the clusters. It will not work if the default Mesh Policy is "STRICT"
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Name of the Cluster | Microservice | Istio Configuration | Comments |
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Cluster01 | - sleep
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Microservice | Resource |
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common | serviceEntry (httpbin) | sleep | destinationRule for TLS | bookinfo-productpage | destinationRule for simple TLS, Loadbalancing and circuit breaking AuthorizationPolicy for Access Control |
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Cluster02 | httpbin |
Microservice | Resource |
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httpbin | destinationRule for simple TLS, Loadbalancing and circuit breaking AuthorizationPolicy for Access Control | sleep | destinationRule for TLS | bookinfo-user | destinationRule for TLS | common | serviceEntry (bookinfo-productpage) |
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Cluster01 Resources
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1. ServiceEntry - To enable
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access to
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httpbin
Code Block |
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language | yml |
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theme | Eclipse |
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title | ServiceEntry |
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linenumbers | true |
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apiVersion: networking.istio.io/v1alpha3
kind: ServiceEntry
metadata:
name: servicename-httpbin
spec:
hosts:
- httpbin.default.global
# template for the remote service name - <servicename.namespace.global>
# Treat remote cluster services as part of the service mesh
# as all clusters in the service mesh share the same root of trust.
location: MESH_INTERNAL
ports:
- name: http1
number: 8000
protocol: http
resolution: DNS
addresses:
# the IP address to which httpbin.<namespace>.<logicalcloudname> will resolve to
# must be unique for each remote service, within a given cluster.
# This address need not be routable. Traffic for this IP will be captured
# by the sidecar and routed appropriately.
- 240.0.0.2
endpoints:
# This is the routable address of the istio ingress gateway in cluster02
# routed to this address.
- address: 172.25.55.50
ports:
http1: 15443 //Sni. Do not change this
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Cluster 02 Resources
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2. DestinationRule for simple TLS, Loadbalancing and circuit breaking
Code Block |
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language | yml |
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theme | Eclipse |
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title | DestinationRule |
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linenumbers | true |
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apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
name: bookinfo-productpage-dr
namespace: default
spec:
host: "productpage.default.svc.cluster.local"
trafficPolicy:
tls:
mode: ISTIO_MUTUAL
loadbalancer:
consistentHash:
httpCookie: "user2"
connectionPool:
tcp:
maxConnections: 10
http:
http2MaxRequests: 1000
maxRequestsPerConnection: 100
outlierDetection:
consecutiveErrors: 7
interval: 5m
baseEjectionTime: 15m
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3. AuthorizationPolicy
Code Block |
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language | yml |
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theme | Eclipse |
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title | AuthorizationPolicy |
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linenumbers | true |
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apiVersion: security.istio.io/v1beta1
kind: AuthorizationPolicy
metadata:
name: deny-all
namespace: default
spec:
selector:
matchLabels:
app: productpage
rules:
- from:
- source:
principals: ["cluster.global/ns/default/sa/sleep", "cluster.global/ns/default/sa/bookinfo-user" ]
to:
- operation:
methods: ["GET"]
paths: ["/static*"]
- operation:
methods: ["GET"]
paths: ["/api/v1/products"]
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Cluster 02 Resources
1. ServiceEntry - To enable access to bookinfo-productpage
Code Block |
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language | yml |
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theme | Eclipse |
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title | ServiceEntry |
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linenumbers | true |
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|
apiVersion: networking.istio.io/v1alpha3
kind: ServiceEntry
metadata:
name: servicename-bookinfo-productpage
spec:
hosts:
- productpage.default.global
# template for the remote service name - <servicename.namespace.global>
# Treat remote cluster services as part of the service mesh
# as all clusters in the service mesh share the same root of trust.
location: MESH_INTERNAL
ports:
- name: http1
number: 8000
protocol: http
resolution: DNS
addresses:
# the IP address to which httpbin.<namespace>.<logicalcloudname> will resolve to
# must be unique for each remote service, within a given cluster.
# This address need not be routable. Traffic for this IP will be captured
# by the sidecar and routed appropriately.
- 240.0.0.3
endpoints:
# This is the routable address of the istio ingress gateway in cluster02
# routed to this address.
- address: 172.25.55.210
ports:
http1: 15443 //Sni. Do not change this
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2. DestinationRule for simple TLS, Loadbalancing and circuit breaking
Code Block |
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language | yml |
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theme | Eclipse |
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title | DestinationRule |
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linenumbers | true |
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apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
name: httpbin-dr
namespace: default
spec:
host: "httpbin.default.svc.cluster.local"
trafficPolicy:
tls:
mode: ISTIO_MUTUAL
loadbalancer:
consistentHash:
httpCookie: "user1"
connectionPool:
tcp:
maxConnections: 10
http:
http2MaxRequests: 1000
maxRequestsPerConnection: 100
outlierDetection:
consecutiveErrors: 7
interval: 5m
baseEjectionTime: 15m
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...