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draw.io Diagram
bordertrue
diagramNameus-to-us intent
simpleViewerfalse
width
linksauto
tbstyletop
lboxtrue
diagramWidth16881758
revision67


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"

...

Code Block
languagejs
themeMidnight
titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/blue-app/{version}/traffic-intent-set/inbound-intents/

POST BODY:
{
	"metadata": {
	"name": "<>" // unique name for each intent
    "description": "connectivity intent for stateless micro-service to stateless micro-service inbound communication"
	"userdata1": <>,
	"userdata2": <>
	}

	"spec": { // update the memory allocation for each field as per OpenAPI standards
	"application": "<app1>",
	"servicename": "httpbin" //actual name of the client service - {istioobject - serviceEntry of client's cluster}
	"externalName": "httpbin.k8s.com"
	"protocol": "HTTP",
	"headless": "false", // default is false. Option "True" will make sure all the instances of the headless service will have access to the client service
	"mutualTLS": "MUTUAL", // default is simple. Option MUTUAL will enforce mtls {istioobject - destinationRule}
	"port" : "80", // port on which service is exposed as through servicemesh, not the port it is actually running on
	"serviceMesh": "istio", // get it from cluster record
	"sidecar-proxy": "yes", // The features (mTLS, LB, Circuit breaking) are not available to services without istio-proxy. Only inbound routing is possible.

	// Traffic management fields below are valid only if the sidecar-proxy is set to "yes"
	"traffic-management-info" : {
	// Traffic configuration - Loadbalancing is applicable per service. The traffic to this service is distrbuted amongst the pods under it.
	"loadbalancingType": "ConsistenHash", // "Simple" and "consistentHash" are the two modes - {istioobject - destinationRule}
	"loadBalancerMode": "httpCookie" // Modes for consistentHash - "httpHeaderName", "httpCookie", "useSourceIP", "minimumRingSize", Modes for simple - "LEAST_CONN", "ROUND_ROBIN", 	"RANDOM", "PASSTHROUGH" // choices of the mode must be explicit - {istioobject - destinationRule}
	"httpCookie": "user1" // Name of the cookie to maitain sticky sessions - {istioobject - destinationRule}

	// Circuit Breaking
	"maxConnections": 10 //connection pool for tcp and http traffic - {istioobject - destinationRule}
	"concurrenthttp2Requests": 1000 // concurent http2 requests which can be allowed - {istioobject - destinationRule}
	"httpRequestPerConnection": 100 // number of http requests per connection. Valid only for http traffic - {istioobject - destinationRule}
	"consecutiveErrors": 8 // Default is 5.  Number of consecutive error before the host is removed - {istioobject - destinationRule}
	"baseEjectionTime" : 15 // Default is 5, - {istioobject - destinationRule}
	"intervalSweep": 5m, //time limit before the removed hosts are added back to the load balancing pool. - {istioobject - destinationRule}
	}

	// credentials for mTLS.
	"Servicecertificate" : "" // Present actual certificate here.
	"ServicePrivateKey" : "" // Present actual private key here.
	"caCertificate" : "" // present the trusted certificate to verify the client connection, Required only when mtls mode is MUTUAL	
	}
}

	// Access Control
	namespaces: [] // Workloads from this namespaces can access the inbound service - {istioobject - authorizationPolicy}
	serviceAccountAccess : {[ "cluster.local/ns/<Namespace>/sa/sleep": ["GET": "/status"]} // {istioobject - authorizationPolicy, will be applied for the inbound service}
	
	}
}

RETURN STATUS: 201
RETURN BODY: 
{ 
  "name": "<name>"
  "Message": "inbound service created"
}

Client 01 

POST - traffic intent to add clients for accessing a specific inbound service - NOTE - Clients will have the mTLS mode same as the inbound service

RETURN STATUS: 201
RETURN BODY: 
{ 
  "name": "<name>"
  "Message": "inbound service created"
}

Authorization for Inbound Service 01

Code Block
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titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/blue-app/{version}/traffic-intent-set/inbound-intents/{serviceName}/authorization-policies

POST BODY:
{
	"metadata": {
	"name": "<>" // unique name for each intent
    "description": "Authorization Policy for inbound services"
	"userdata1": <>,
	"userdata2": <>
	}

	"spec": {
	// Access Control
	"namespaces": [] // Workloads from this namespaces can access the inbound service - {istioobject - authorizationPolicy}
	"serviceAccountAccess" : {[ "cluster.local/ns/<Namespace>/sa/sleep": ["GET": "/status"]} // {istioobject - authorizationPolicy, will be applied for the inbound service}
	
	}
}

RETURN STATUS: 201
RETURN BODY: 
{ 
  "name": "<name>"
  "Message": "Authorizations Policy created"
}

Client 01 

POST - traffic intent to add clients for accessing a specific inbound service - NOTE - Clients will have the mTLS mode same as the inbound service

Code Block
languagejs
themeMidnight
titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/brown-app/{version}/traffic-group-intent/outbound-intents/
POST BODY:
{
	"metadata": {
	
Code Block
languagejs
themeMidnight
titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/{composite-app-name}/{version}/traffic-group-intent/outbound-intents/
POST BODY:
{
	"metadata": {
	"name": "<name>" // unique name for each intent
    "description": "connectivity intent add client communication"
	"application": "<app1>",
	"userdata1": <>,
	"userdata2": <>
	}

	spec: {
		"clientServiceName": "sleep", // Name of the client service
		"type": "istio", // options are istio, k8s and external
		"inboundServiceName": "httpbin"
		"headless": "false", // default is false. Option "True" will generate the required configs for all the instances of headless service
	}
}

RETURN STATUS: 201
RETURN BODY:
{ 
  "name": "<name>"
  "Message": "Client created"
}

Client 02 

POST - traffic intent to add clients for accessing a specific inbound service - NOTE - Clients will have the mTLS mode same as the inbound service

Code Block
languagejs
themeMidnight
titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/{composite-app-name}/{version}/traffic-group-intent/outbound-intents/
POST BODY:
{
	"metadata": {
	"name": "<name>" // unique name for each intent
    "description": "connectivity intent add client communication"
	"application": "<app1>",
	"userdata1": <>,
	"userdata2": <>
	}

	spec: {
		"clientServiceName": "sleep", // Name of the client service
		"type": "istio", // options are istio, k8s and external
		"inboundServiceName": "httpbin"
		"headless": "false", // default is false. Option "True" will generate the required configs for all the instances of headless service// unique name for each intent
    "description": "connectivity intent for outbound communication"
	"application": "<app1>",
	"userdata1": <>,
	"userdata2": <>
	}

	spec: {
		"ServiceName": "sleep", // Name of the client service
		"type": "istio", // options are istio, k8s and external
		"headless": "false", // default is false. Option "True" will generate the required configs for all the instances of headless service
		"targetServiceName": "httpbin.k8s.com" // FQDN expected since the client belongs to a different composite app
	}
}

RETURN STATUS: 201
RETURN BODY:
{ 
  "name": "<name>"
  "Message": "Client created"
}

Client

...

02 

POST - traffic intent to add clients for accessing a specific inbound service - NOTE - Clients will have the mTLS mode same as the inbound service

Code Block
languagejs
themeMidnight
titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/{compositeblue-app-name}/{version}/traffic-group-intent/outbound-intents/
POST BODY:
{
	"metadata": {
	"name": "<name>" // unique name for each intent
    "description": "connectivity intent add client communication"
	"application": "<app1>",
	"userdata1": <>,
	"userdata2": <>
	}

	spec: {
		"clientServiceName": "onap.k8s.org",sleep", // Name of the client service
		"type": "externalistio", // options are istio, k8s and external
		"inboundServiceName": "httpbin"
		"headless": "false", // default is false. Option "True" will generate the required configs for all the instances of headless service
		"targetService": "httpbin.k8s.com" // Both client and service belong to the same composite. This notation is still used for consistency
	}
}

RETURN STATUS: 201
RETURN BODY:
{ 
  "name": "<name>"
  "Message": "Client created"
}

Add Inbound service 02

POST

Client 03

POST - traffic intent to add clients for accessing a specific inbound service - NOTE - Clients will have the mTLS mode same as the inbound service

Code Block
languagejs
Code Block
languagejs
themeMidnight
titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/{compositebrown-app-name}/{version}/traffic-group-intent-set/inboundoutbound-intents/

POST BODY:
{
	"metadata": {
	"name": "<httpbin><name>" // unique name for each intent
    "description": "connectivity intent foradd stateless micro-service to stateless micro-service communication"client communication"
	"application": "<app1>",
	"userdata1": <>,
	"userdata2": <>
	}

	"spec": { 
		"applicationclientServiceName": "<app1>onap.k8s.org",
	"servicename": "productpage" //actual name  // Name of the client service
		"protocoltype": "HTTP",
	external", // options are istio, k8s and external
		"headless": "false", // default is false. Option "True" will make sure generate the required configs for all the instances of the headless service will have access to the client service
	"mutualTLS
		"targetService": "httpbin.k8s.com"
	}
}

RETURN STATUS: 201
RETURN BODY:
{ 
  "name": "<name>"
  "Message": "Client created"
}

Add Inbound service 02

POST

Code Block
languagejs
themeMidnight
titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/blue-app/{version}/traffic-intent-set/inbound-intents/

POST BODY:
{
	"metadata": {
	"name": "<httpbin>" // unique name for each intent
    "description": "connectivity intent for stateless micro-service to stateless micro-service communication"
	"userdata1": <>,
	"userdata2": <>
	}

	"spec": { 
	"application": "<app1>",
	"servicename": "productpage" //actual name of the client service
	"externalName": "productpage.k8s.com"
	"protocol": "HTTP",
	"headless": "false", // default is false. Option "True" will make sure all the instances of the headless service will have access to the client service
	"mutualTLS": "MUTUAL", // default is simple. Option MUTUAL will enforce mtls
	"port" : "80", // port on which service is exposed as through servicemesh, not the port it is actually running on
	"serviceMesh": "istio", // get it from cluster record
	"sidecar-proxy": "yes", // The features (mTLS, LB, Circuit breaking) are no avaialble to services without istio-proxy. Only inbound routing is possible.

	// Traffic management fields below are valid only if the sidecar-proxy is set to "yes"
	traffic-management-info : {
	// Traffic configuration - Loadbalancing is applicable per service. The traffic to this service is distrbuted amongst the pods under it.
	"loadbalancingType": "ConsistenHash", // "Simple" and "consistentHash" are the two modesMUTUAL", // default is simple. Option MUTUAL will enforce mtls
	"port" : "80", // port on which service is exposed as through servicemesh, not the port it is actually running on
	"serviceMesh": "istio", // get it from cluster record
	"sidecar-proxy": "yes", // The features (mTLS, LB, Circuit breaking) are no avaialble to services without istio-proxy. Only inbound routing is possible.

	// Traffic management fields below are valid only if the sidecar-proxy is set to "yes"
	traffic-management-info : {
	// Traffic configuration - Loadbalancing is applicable per service. The traffic to this service is distrbuted amongst the pods under it.
	"loadbalancingType": "ConsistenHash", // "Simple" and "consistentHash" are the two modes - {istioobject - destinationRule}
	"loadBalancerMode": "httpCookie" // Modes for consistentHash - "httpHeaderName", "httpCookie", "useSourceIP", "minimumRingSize", Modes for simple - "LEAST_CONN", "ROUND_ROBIN", 	"RANDOM", "PASSTHROUGH" // choices of the mode must be explicit - {istioobject - destinationRule}
	"httpCookie": "user2" // Name of the cookie to maitain sticky sessions - {istioobject - destinationRule}

	// Circuit Breaking
	"maxConnections": 10 //connection pool for tcp and http traffic - {istioobject - destinationRule}
	"concurrenthttp2Requests": 1000 // concurent http2 requests which can be allowed - {istioobject - destinationRule}
	"httpRequestPerConnectionloadBalancerMode": 100"httpCookie" // Modes numberfor ofconsistentHash http requests per connection. Valid only for http traffic - {istioobject - destinationRule}
	"consecutiveErrors": 8 // Default is 5.  Number of consecutive error before the host is removed - "httpHeaderName", "httpCookie", "useSourceIP", "minimumRingSize", Modes for simple - "LEAST_CONN", "ROUND_ROBIN", 	"RANDOM", "PASSTHROUGH" // choices of the mode must be explicit - {istioobject - destinationRule}
	"baseEjectionTimehttpCookie" : 15"user2" // Default is 5, Name of the cookie to maitain sticky sessions - {istioobject - destinationRule}

	"intervalSweep// Circuit Breaking
	"maxConnections": 5m,10 //timeconnection limitpool beforefor thetcp removedand hosts are added back to the load balancing pool. http traffic - {istioobject - destinationRule}
	
	}

	// credentials for mTLS.
	"Servicecertificateconcurrenthttp2Requests" : ""1000 // Presentconcurent actualhttp2 certificate here.
	"ServicePrivateKey" : "" // Present actual private key here.
	"caCertificate": ""requests which can be allowed - {istioobject - destinationRule}
	"httpRequestPerConnection": 100 // Trustednumber caCertificates used to verify the client

	// Access Control
	namespaces: [] // Workloads from this namespaces can access the inbound service
	serviceAccountAccess : {"cluster.local/ns/default/sa/sleep": {"GET": "/static"}} // {istioobject - authorizationPolicy, will be applied for the inbound serviceof http requests per connection. Valid only for http traffic - {istioobject - destinationRule}
	"consecutiveErrors": 8 // Default is 5.  Number of consecutive error before the host is removed - {istioobject - destinationRule}
	"baseEjectionTime" : 15 // Default is 5, - {istioobject - destinationRule}
	"intervalSweep": 5m, //time limit before the removed hosts are added back to the load balancing pool. - {istioobject - destinationRule}
	
	}
}

RETURN STATUS: 201
RETURN BODY: 
{ 
  "name": "<name>"
  "Message": "inbound service created"
}
Add Clients to inbound service 02
Client 01

POST - traffic intent to add clients for accessing a specific inbound service

Code Block
languagejs
themeMidnight
titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/{composite-app-name}/{version}/traffic-group-intent/outbound-intents/httpbin/
POST BODY:
{
	"metadata": {
	
	// credentials for mTLS.
	"Servicecertificate" : "" // Present actual certificate here.
	"ServicePrivateKey" : "" // Present actual private key here.
	"caCertificate": "" // Trusted caCertificates used to verify the client

	// Access Control
	"namespaces": [] // Workloads from this namespaces can access the inbound service
	serviceAccountAccess : {"cluster.local/ns/default/sa/sleep": {"GET": "/static"}} // {istioobject - authorizationPolicy, will be applied for the inbound service}
	
	}
}

RETURN STATUS: 201
RETURN BODY: 
{ 
  "name": "<name>" // unique name for each intent
    "descriptionMessage": "connectivityinbound service created"
}

Add Authorization Policy to the inbound service

Code Block
languagejs
themeMidnight
titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/blue-app/{version}/traffic-intent-set/inbound-intents/{serviceName}/authrization-policies

POST BODY:
{
	"metadata": {
	"name": "<httpbin>" // unique name for each intent
    "description": "Authorization Policy for the client"
	"intent add client communication"
	"application": "<app1>",
	"userdata1": <>,
	"userdata2": <>
	}

	"spec": {
	// Access Control
	"clientServiceNamenamespaces": "sleep",[] // Name of Workloads from this namespaces can access the clientinbound service
		"type"serviceAccountAccess : "istio", // options are istio, k8s and external
		"headless{"cluster.local/ns/default/sa/sleep": {"GET": "false/static",}} // default{istioobject is false. Option "True"- authorizationPolicy, will generate the required configsbe applied for all the instancesinbound of headless service}
		"serviceAccountAccess: : {"cluster.local/ns/default/sa/sleep" : {"GET": "/api/v1/products"}} // {istioobject - authorizationPolicy, will be applied for the inbound service}
	}
}

RETURN STATUS: 201
RETURN BODY:
{ 
  "name
	}
}

RETURN STATUS: 201
RETURN BODY: 
{ 
  "name": "<name>"
  "Message": "Clientinbound service created"
}

...

Add Clients to inbound service 02
Client 01

POST - traffic intent to add clients for accessing a specific inbound service

Code Block
languagejs
themeMidnight
titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/{compositebrown-app-name}/{version}/traffic-group-intent/outbound-intents/httpbin/
POST BODY:
{
	"metadata": {
	"name": "<name>" // unique name for each intent
    "description": "connectivity intent add client communication"
	"application": "<app1>",
	"userdata1": <>,
	"userdata2": <>
	}

	spec: {
		"clientServiceName": "bookinfo-usersleep", // Name of the client service
		"type": "istio", // options are istio, k8s and external
		"headless": "false", // default is false. Option "True" will generate the required configs for all the instances of headless service
		"serviceAccountAccess: targetService": {"cluster.local/ns/default/sa/sleep" : {"GET": "/api/v1/products"}} // {istioobject - authorizationPolicy, will be applied for the inbound service}productpage.k8s.com"
	}
}

RETURN STATUS: 201
RETURN BODY:
{ 
  "name": "<name>"
  "Message": "Client created"
}

Generate Istio object resources

...

Cluster01 Resources

...

Client 02

POST - traffic intent to add clients for accessing a specific inbound service

Code Block
languagejs
themeMidnight
titlePOST
linenumberstrue
URL: /v2/projects/{project-name}/composite-apps/brown-app/{version}/traffic-group-intent/outbound-intents/httpbin
POST BODY:
{
	"metadata": {
	"name": "<name>" // unique name for each intent
    "description": "connectivity intent add client communication"
	"application": "<app1>",
	"userdata1": <>,
	"userdata2": <>
	}

	spec: {
		"clientServiceName": "bookinfo-user", // Name of the client service
		"type": "istio", // options are istio, k8s and external
		"headless": "false", // default is false. Option "True" will generate the required configs for all the instances of headless service
		"inboundServiceName": "productpage.k8s.com"		
	}
}

RETURN STATUS: 201
RETURN BODY:
{ 
  "name": "<name>"
  "Message": "Client created"
}

Generate Istio object resources

Name of the ClusterMicroserviceIstio ConfigurationComments
Cluster01


MicroserviceLogicalcloud01Logicalcloud02
Common access for httpbinserviceEntry (httpbin)
sleepdestinationRule
bookinfo-productpage
AuthorizationPolicy, destinationRule 



Cluster02


MicroserviceLogicalcloud01Logicalcloud02
common access for bookinfo-productpageserviceEntry
bookinfo-userdestinationRule
sleepdestinationRule



Cluster01 Resources

1. ServiceEntry - To enable sleep to access to httpbin (logicalcloud01) 

Code Block
languageyml
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titleServiceEntry
linenumberstrue
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 // which is the translation of "httpbin.k8s.com"
  # 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

2.  DestinationRule for TLS - sleep (logicalcloud01)

Code Block
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titleDestinationRule
linenumberstrue
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

3.  DestinationRule for TLS, Loadbalancing and circuit breaking - productpage (logicalCloud02)

Code Block
languageyml
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titleDestinationRule
linenumberstrue
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

4. Gateway and Virtual Service resource to allow specific host headers and expose the service outside the cluster

Code Block
languageyml
themeEclipse
titleServiceEntryDestinationRule
linenumberstrue
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

...

Gateway
metadata:
  name: bookinfo-gateway
  namespace: namespace02
spec:
  selector:
    istio: ingressgateway # use Istio default gateway implementation
  servers:
  - port:
      number: 80
      name: http
      protocol: HTTP
    hosts:
    - "*.local"
	- ".*logicalcloud01"
	- ".*logicalcloud02"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: httpbin
spec:
  hosts:
    - "*.local"
	- ".*logicalcloud01"
	- ".*logicalcloud02"
  gateways:
  - bookinfo-gateway
  http:
  - match:
    - uri:
        prefix: /productpage.k8s.com
    route:
    - destination:
        port:
          number: 8000
        host: productpage.namespace02.local

5.  AuthorizationPolicy for bookinfo-productpage - (logicalCloud02)

Code Block
languageyml
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titleDestinationRuleAuthorizationPolicy
linenumberstrue
apiVersion: networkingsecurity.istio.io/v1alpha3v1beta1
kind: DestinationRuleAuthorizationPolicy
metadata:
  name: sleepdeny-drall
  namespace: <namespace_of_sleep>prodfuct-page>
spec:
  hostselector: "sleep"
  trafficPolicy:
    tls matchLabels:
      modeapp: MUTUAL<name_used_for_productpage>
  rules:
  -  serverCertificate: /etc/certs/cert-chain.pemfrom:
    - source:
 privateKey: /etc/certs/key.pem
      caCertificatesprincipals: /etc/certs/root-cert.pem
3.  DestinationRule for TLS, Loadbalancing and circuit breaking - productpage (logicalCloud02)
Code Block
languageyml
themeEclipse
titleDestinationRule
linenumberstrue
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: bookinfo-productpage-dr
  namespace: <namespace_of_productpage>
spec:
  host: "productpage"
  trafficPolicy["cluster.global/ns/default/sa/sleep", "cluster.global/ns/default/sa/bookinfo-user" ]
    to:
    - operation:
    tls:
	    modemethods: MUTUAL["GET"]
      serverCertificate  paths: /etc/certs/cert-chain.pem["/static*"]
    - operation:
 privateKey: /etc/certs/key.pem
      caCertificates: /etc/certs/root-cert.pem
methods: ["GET"]
     loadbalancer:
   paths: ["/api/v1/products"]

Cluster 02 Resources

1. ServiceEntry - To enable access to bookinfo-productpage - (logicalCloud01)

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apiVersion:  consistentHashnetworking.istio.io/v1alpha3
kind: ServiceEntry
metadata:
     name: service-entry-bookinfo-productpage
  namespace: httpCookie: "user2"namespace01
spec:
    connectionPoolhosts:
  - productpage.namespace01.logicalcloud01 // format  tcp:is <svc>.<namespace>.<logical_cluster_domain>
  # template for the remote service name maxConnections: 10- <servicename.namespace.global>
  # Treat remote cluster http:
services as part of the    http2MaxRequests: 1000service mesh
  # as all clusters in the maxRequestsPerConnection:service 100
mesh    outlierDetection:
      consecutiveErrors: 7
      interval: 5mshare the same root of trust.
  location: MESH_INTERNAL
  ports:
  - name: http1
      baseEjectionTime: 15m

4.  AuthorizationPolicy for bookinfo-productpage - (logicalCloud02)
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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*"]
    - operationnumber: 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:
        methodshttp1: ["GET"]
        paths: ["/api/v1/products"]

Cluster 02 Resources

...

15443 //Sni. Do not change this

2. DestinationRule for TLS - sleep - (logicalCloud01)

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apiVersion: networking.istio.io/v1alpha3
kind: ServiceEntryDestinationRule
metadata:
  name: service-entry-bookinfo-productpagesleep-dr
  namespace: namespace01
spec:
  hostshost: "sleep"
  - 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

2. DestinationRule for TLS - sleep - (logicalCloud01)
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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

...

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)

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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


4.  DestinationRule for simple TLS, Loadbalancing and circuit breaking for httpbin - (logicalCloud02)

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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

5.  AuthorizationPolicy for httpbin - (logicalCloud02)

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apiVersion: networkingsecurity.istio.io/v1alpha3v1beta1
kind: DestinationRuleAuthorizationPolicy
metadata:
  name: sleepdeny-drall
  namespace: namespace01namespace02
spec:
  host: "bookinfo-user"
  trafficPolicy:
    tls:
	  modeselector: MUTUAL
      serverCertificate: /etc/certs/cert-chain.pemmatchLabels:
      privateKey: /etc/certs/key.pemapp: <app_Name_of_httpbin>
  rules:
  -  caCertificatesfrom: /etc/certs/root-cert.pem
4.  DestinationRule for simple TLS, Loadbalancing and circuit breaking for httpbin - (logicalCloud02)
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apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: httpbin-dr
  namespace: namespace02
spec:
  host: "httpbin"
  trafficPolicy:
    tls:

    - source:
        principals: ["cluster.local/ns/default/sa/sleep"]
    to:
    - operation:
        methods: ["GET"]
        paths: ["/status*"]
    - operation:
        modemethods: MUTUAL
	  serverCertificate: /etc/certs/cert-chain.pem
["GET"]
        privateKeypaths: /etc/certs/key.pem
      caCertificates: /etc/certs/root-cert.pem
    loadbalancer:
      consistentHash:
        httpCookie: "user1"
    connectionPool:
["/headers"]

6.  Gateway and Virtual Service resource to allow specific host headers and expose the service outside the cluster

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apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: httpbin-gateway
  namespace: namespace02
spec:
  selector      tcp:
        maxConnections: 10
      http:
        http2MaxRequests: 1000
  istio: ingressgateway # use Istio default gateway implementation
  servers:
  - port:
      maxRequestsPerConnectionnumber: 10080
      outlierDetectionname: http
      consecutiveErrorsprotocol: 7HTTP
      intervalhosts: 5m
    -  baseEjectionTime: 15m

5.  AuthorizationPolicy for httpbin - (logicalCloud02)
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apiVersion: security"*.local"
	- ".*logicalcloud01"
	- ".*logicalcloud02"
	- "onap.k8s.org"
---
apiVersion: networking.istio.io/v1beta1v1alpha3
kind: AuthorizationPolicyVirtualService
metadata:
  name: deny-all
 namespace: namespace02httpbin-gateway
spec:
  selectorhosts:
   matchLabels:
     app: <app_Name_of_httpbin>
  rules - "*.local"
	- ".*logicalcloud01"
	- ".*logicalcloud02"
	- "onap.k8s.org"
  gateways:
  - httpbin-gateway
  http:
  - frommatch:
    - sourceuri:
        principalsprefix: ["cluster.local/ns/default/sa/sleep"]/httpbin.k8s.com
    toroute:
    - operationdestination:
        methods: ["GET"]
        paths: ["/status*"]port:
    - operation:
        methodsnumber: ["GET"]8000
        pathshost: ["/headers"]httpbin.namespace02.local