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Important Info - cert-chain.pem
is Envoy’s cert that needs to be presented to the other side. key.pem
is Envoy’s private key paired with Envoy’s cert in cert-chain.pem
. root-cert.pem
is the root cert to verify the peer’s cert. In this example, we only have one Citadel in a cluster, so all Envoys have the same root-cert.pem
.
Add Inbound service 01
POST - traffic intent for the inbound service (service hosted behind the cluster)
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Name of the Cluster | Microservice | Istio Configuration | Comments |
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Cluster01 |
|
Microservice | Logicalcloud01 | Logicalcloud02 |
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Common access for httpbin | serviceEntry (httpbin) |
| sleep | destinationRule |
| bookinfo-productpage |
| AuthorizationPolicy, destinationRule |
|
|
Cluster02 |
|
Microservice | Logicalcloud01 | Logicalcloud02 |
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common access for bookinfo-productpage | serviceEntry |
| bookinfo-user | destinationRule |
| sleep | destinationRule |
|
|
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Cluster01 Resources
1. ServiceEntry - To enable sleep to access to httpbin (logicalcloud01)
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: service-entry-httpbin
namespace: <> // namespace where the client service are deployed
spec:
hosts:
- httpbin.<namespace_of_service>.logicalcloud02
# 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 // IP of the istio-ingress-gateway
ports:
http1: 15443 //Sni. Do not change this
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2. DestinationRule for TLS - sleep (logicalcloud01)
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: sleep-dr
namespace: <namespace_of_sleep>
spec:
host: "sleep"
trafficPolicy:
tls:
mode: MUTUAL
serverCertificate: /etc/certs/cert-chain.pem
privateKey: /etc/certs/key.pem
caCertificates: /etc/certs/root-cert.pem
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3. DestinationRule for TLS, Loadbalancing and circuit breaking - productpage (logicalCloud02)
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: <namespace_of_productpage>
spec:
host: "productpage"
trafficPolicy:
tls:
mode: MUTUAL
serverCertificate: /etc/certs/cert-chain.pem
privateKey: /etc/certs/key.pem
caCertificates: /etc/certs/root-cert.pem
loadbalancer:
consistentHash:
httpCookie: "user2"
connectionPool:
tcp:
maxConnections: 10
http:
http2MaxRequests: 1000
maxRequestsPerConnection: 100
outlierDetection:
consecutiveErrors: 7
interval: 5m
baseEjectionTime: 15m
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4. AuthorizationPolicy for bookinfo-productpage - (logicalCloud02)
Code Block |
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language | yml |
---|
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: <namespace_of_prodfuct-page>
spec:
selector:
matchLabels:
app: <name_used_for_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 - (logicalCloud01)
Code Block |
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language | yml |
---|
theme | Eclipse |
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title | ServiceEntry |
---|
linenumbers | true |
---|
|
apiVersion: networking.istio.io/v1alpha3
kind: ServiceEntry
metadata:
name: service-entry-bookinfo-productpage
namespace: namespace01
spec:
hosts:
- productpage.namespace01.logicalcloud01 // format is <svc>.<namespace>.<logical_cluster_domain>
# 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 TLS - sleep - (logicalCloud01)
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 |
---|
|
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
name: sleep-dr
namespace: namespace01
spec:
host: "sleep"
trafficPolicy:
tls:
mode: MUTUAL
serverCertificate: /etc/certs/cert-chain.pem
privateKey: /etc/certs/key.pem
caCertificates: /etc/certs/root-cert.pem
|
3. DestinationRule for bookinfo-user - (logicalCloud01)
Code Block |
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language | yml |
---|
theme | Eclipse |
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title | DestinationRule |
---|
linenumbers | true |
---|
|
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
name: sleep-dr
namespace: namespace01
spec:
host: "bookinfo-user"
trafficPolicy:
tls:
mode: MUTUAL
serverCertificate: /etc/certs/cert-chain.pem
privateKey: /etc/certs/key.pem
caCertificates: /etc/certs/root-cert.pem
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4. DestinationRule for simple TLS, Loadbalancing and circuit breaking for httpbin - (logicalCloud02)
Code Block |
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language | yml |
---|
theme | Eclipse |
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title | DestinationRule |
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linenumbers | true |
---|
|
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
name: httpbin-dr
namespace: namespace02
spec:
host: "httpbin"
trafficPolicy:
tls:
mode: MUTUAL
serverCertificate: /etc/certs/cert-chain.pem
privateKey: /etc/certs/key.pem
caCertificates: /etc/certs/root-cert.pem
loadbalancer:
consistentHash:
httpCookie: "user1"
connectionPool:
tcp:
maxConnections: 10
http:
http2MaxRequests: 1000
maxRequestsPerConnection: 100
outlierDetection:
consecutiveErrors: 7
interval: 5m
baseEjectionTime: 15m
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5. AuthorizationPolicy for httpbin - (logicalCloud02)
Code Block |
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language | yml |
---|
theme | Eclipse |
---|
title | AuthorizationPolicy |
---|
linenumbers | true |
---|
|
apiVersion: security.istio.io/v1beta1
kind: AuthorizationPolicy
metadata:
name: deny-all
namespace: namespace02
spec:
selector:
matchLabels:
app: <app_Name_of_httpbin>
rules:
- from:
- source:
principals: ["cluster.local/ns/default/sa/sleep"]
to:
- operation:
methods: ["GET"]
paths: ["/status*"]
- operation:
methods: ["GET"]
paths: ["/headers"]
|
...