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| -rw-r--r-- | docs/release/configguide/imgs/sdc_tracing.png | bin | 83363 -> 84913 bytes | |||
| -rw-r--r-- | docs/release/configguide/sdc_config_guide.rst | 133 | ||||
| -rw-r--r-- | samples/scenarios/service_delivery_controller.yaml | 44 |
3 files changed, 134 insertions, 43 deletions
diff --git a/docs/release/configguide/imgs/sdc_tracing.png b/docs/release/configguide/imgs/sdc_tracing.png Binary files differindex 0df7112..bad575c 100644 --- a/docs/release/configguide/imgs/sdc_tracing.png +++ b/docs/release/configguide/imgs/sdc_tracing.png diff --git a/docs/release/configguide/sdc_config_guide.rst b/docs/release/configguide/sdc_config_guide.rst index ea3948c..7b7e77a 100644 --- a/docs/release/configguide/sdc_config_guide.rst +++ b/docs/release/configguide/sdc_config_guide.rst @@ -119,7 +119,7 @@ The following assumptions must be met before continuing on to deployment: * Ubuntu 16.04 was used heavily for development and is advised for greenfield deployments. * Installation of Docker has already been performed. It's preferable to install Docker CE. * Installation of Kubernetes has already been performed. The installation in this guide was - executed in a single-node Kubernetes cluster on a modest virtual machine. + executed in a single-node Kubernetes cluster. * Installation of a pod network that supports the Container Network Interface (CNI). It is recommended to use flannel, as most development work employed this network add-on. Success using Weave Net as the CNI plugin has also been reported. @@ -175,21 +175,21 @@ within the samples directory as shown below: $ git clone https://gerrit.opnfv.org/gerrit/clover $ cd clover/samples/scenarios - $ git checkout stable/fraser + $ git checkout stable/gambia To deploy the sample in the default Kubernetes namespace, use the following command for Istio manual sidecar injection: .. code-block:: bash - $ kubectl apply -f <(istioctl kube-inject --debug -f service_delivery_controller_opnfv.yaml) + $ istioctl kube-inject -f service_delivery_controller_opnfv.yaml | kubectl apply -f - To deploy in another namespace, use the '-n' option. An example namespace of 'sdc' is shown below: .. code-block:: bash $ kubectl create namespace sdc - $ kubectl apply -n sdc -f <(istioctl kube-inject --debug -f service_delivery_controller_opnfv.yaml) + $ istioctl kube-inject -f service_delivery_controller_opnfv.yaml | kubectl apply -n sdc -f - When using the above SDC manifest, all required docker images will automatically be pulled from the OPNFV public Dockerhub registry. An example of using a Docker local registry is also @@ -226,11 +226,20 @@ The result of the Istio deployment must include the following pods: .. code-block:: bash - $ NAMESPACE NAME READY STATUS - istio-system istio-ca-59f6dcb7d9-9frgt 1/1 Running - istio-system istio-ingress-779649ff5b-mcpgr 1/1 Running - istio-system istio-mixer-7f4fd7dff-mjpr8 3/3 Running - istio-system istio-pilot-5f5f76ddc8-cglxs 2/2 Running + $ NAMESPACE NAME READY STATUS + istio-system grafana-6995b4fbd7-pjgbh 1/1 Running + istio-system istio-citadel-54f4678f86-t2dng 1/1 Running + istio-system istio-egressgateway-5d7f8fcc7b-hs7t4 1/1 Running + istio-system istio-galley-7bd8b5f88f-wtrdv 1/1 Running + istio-system istio-ingressgateway-6f58fdc8d7-vqwzj 1/1 Running + istio-system istio-pilot-d99689994-b48nz 2/2 Running + istio-system istio-policy-766bf4bd6d-l89vx 2/2 Running + istio-system istio-sidecar-injector-85ccf84984-xpmxp 1/1 Running + istio-system istio-statsd-prom-bridge-55965ff9c8-q25rk 1/1 Running + istio-system istio-telemetry-55b6b5bbc7-qrg28 2/2 Running + istio-system istio-tracing-77f9f94b98-zljrt 1/1 Running + istio-system prometheus-7456f56c96-zjd29 1/1 Running + istio-system servicegraph-684c85ffb9-9h6p7 1/1 Running .. _sdc_ingress_port: @@ -241,19 +250,66 @@ To determine how incoming http traffic on port 80 will be translated, use the fo .. code-block:: bash - $ kubectl get svc -n istio-system - NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) - istio-ingress LoadBalancer 10.104.208.165 <pending> 80:32410/TCP,443:31045/TCP + $ kubectl get svc -n istio-system | grep LoadBalancer + NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) + istio-ingressgateway LoadBalancer 10.111.40.165 <pending> 80:32410/TCP,443:31390/TCP **Note, the CLUSTER-IP of the service will be unused in this example since load balancing service types are unsupported in this configuration. It is normal for the EXTERNAL-IP to show status <pending> indefinitely** -In this example, traffic arriving on port 32410 will flow to istio-ingress. The -istio-ingress service will route traffic to the **proxy-access-control** service based on a -configured ingress rule, which defines a gateway for external traffic to enter -the Istio service mesh. This makes the traffic management and policy features of Istio available -for edge services. +In this example, traffic arriving on port 32410 will flow to istio-ingressgateway. The +istio-ingressgateway service will route traffic to the **proxy-access-control** service based on +configured Istio ``Gateway`` and ``VirtualService`` resources, which are shown below. The +``Gateway`` defines a gateway for external traffic to enter the Istio service mesh based on +incoming protocol, port and domain (``hosts:`` section currently using wildcard). The +``VirtualService`` associates to a particular ``Gateway`` (sdc-gateway here) and allows for route +rules to be setup. In the example below, any URL with prefix '/' will be routed to the service +**proxy-access-control** on port 9180. Additionally, ingress traffic can be mirrored by +adding a directive to the ``VirtualService`` definition. Below, all matching traffic will be +mirrored to the **snort-ids** (duplicating internal mirroring performed by the +**proxy-access-control** for illustrative purposes) + +This allows the traffic management and policy features of Istio available to external services and +clients. + +.. code-block:: bash + + apiVersion: networking.istio.io/v1alpha3 + kind: Gateway + metadata: + name: sdc-gateway + spec: + selector: + istio: ingressgateway # use istio default controller + servers: + - port: + number: 80 + name: http + protocol: HTTP + hosts: + - "*" + --- + apiVersion: networking.istio.io/v1alpha3 + kind: VirtualService + metadata: + name: sdcsample + spec: + hosts: + - "*" + gateways: + - sdc-gateway + http: + - match: + - uri: + prefix: / + route: + - destination: + host: proxy-access-control + port: + number: 9180 + mirror: + host: snort-ids Using the sample ================ @@ -269,6 +325,8 @@ flannel CNI IP address, as shown below: $ wget http://10.244.0.1:32410/ $ curl http://10.244.0.1:32410/ +An IP address of a node within the Kubernetes cluster may also be employed. + An HTTP response will be returned as a result of the wget or curl command, if the SDC sample is operating correctly. However, the visibility into what services were accessed within the service mesh remains hidden. The next section `Exposing tracing and monitoring`_ shows how @@ -284,9 +342,9 @@ using the following commands **(above command already executes the two commands .. code-block:: bash - $ kubectl expose -n istio-system deployment jaeger-deployment --port=16686 --type=NodePort + $ kubectl expose -n istio-system deployment istio-tracing --port=16686 --type=NodePort -Likewise, the Promethues monitoring UI is exposed with the following command: +Likewise, the Prometheus monitoring UI is exposed with the following command: .. code-block:: bash @@ -297,9 +355,9 @@ following command: .. code-block:: bash - $ kubectl get svc --all-namespaces + $ kubectl get svc -n istio-system | grep NodePort NAMESPACE NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) - istio-system jaeger-deployment NodePort 10.105.94.85 <none> 16686:32174/TCP + istio-system istio-tracing NodePort 10.105.94.85 <none> 16686:32174/TCP istio-system prometheus NodePort 10.97.74.230 <none> 9090:32708/TCP In the example above, the Jaeger tracing web-based UI will be available on port 32174 and @@ -309,13 +367,28 @@ URLs for Jaeger and Prometheus respectively:: http://<node IP>:32174 http://<node IP>:32708 -Where node IP is an IP from one of the Kubernetes cluster node(s). +Where node IP is an IP of one of the Kubernetes cluster node(s) on a CNI IP address. +Alternatively, the tracing and monitoring services can be exposed with a LoadBalancer +service if supported by your Kubernetes cluster (such as GKE), as shown below for tracing:: + + kind: Service + apiVersion: v1 + metadata: + name: istio-tracing + spec: + selector: + app: jaeger + ports: + - name: http + protocol: TCP + port: 80 + targetPort: 16686 + type: LoadBalancer .. image:: imgs/sdc_tracing.png :align: center :scale: 100% - The diagram above shows the Jaeger tracing UI after traces have been fetched for the **proxy-access-control** service. After executing an HTTP request using the simple curl/wget commands outlined in `Using the sample`_ , a list of SDC services will be displayed @@ -324,8 +397,9 @@ the drop-down and click the ``Find Traces`` button at the bottom of the left con The blue box denotes what should be displayed for the services that were involved in handling the request including: - * istio-ingress + * istio-ingressgateway * proxy-access-control + * snort-ids * http-lb * clover-server1 OR clover-server2 OR clover-server3 @@ -610,9 +684,8 @@ was installed from source and use the following command: .. code-block:: bash - $ cd istio-0.6.0 - $ kubectl delete -f install/kubernetes/istio.yaml - + $ cd istio-1.0.0 + $ kubectl delete -f install/kubernetes/istio-demo.yaml Uninstall from Docker environment ================================= @@ -628,15 +701,13 @@ The OPNFV docker images can be removed with the following commands: $ docker rmi opnfv/clover If deployment was performed with the Clover container, the first four images above will not -be present. The Redis, Prometheus and Jaeger docker images can be removed with the following -commands, if deployed from source: +be present. The Redis docker images can be removed with the following commands, if deployed +from source: .. code-block:: bash $ docker rmi k8s.gcr.io/redis $ docker rmi kubernetes/redis - $ docker rmi prom/prometheus - $ docker rmi jaegertracing/all-in-one If docker images were built locally, they can be removed with the following commands: diff --git a/samples/scenarios/service_delivery_controller.yaml b/samples/scenarios/service_delivery_controller.yaml index 34e2df0..9f37f1b 100644 --- a/samples/scenarios/service_delivery_controller.yaml +++ b/samples/scenarios/service_delivery_controller.yaml @@ -366,18 +366,38 @@ spec: selector: app: proxy-access-control --- -apiVersion: extensions/v1beta1 -kind: Ingress +apiVersion: networking.istio.io/v1alpha3 +kind: Gateway metadata: - name: proxy-gateway - annotations: - kubernetes.io/ingress.class: "istio" + name: sdc-gateway spec: - rules: - - http: - paths: - - path: - backend: - serviceName: proxy-access-control - servicePort: 9180 + selector: + istio: ingressgateway # use istio default controller + servers: + - port: + number: 80 + name: http + protocol: HTTP + hosts: + - "*" --- +apiVersion: networking.istio.io/v1alpha3 +kind: VirtualService +metadata: + name: sdcsample +spec: + hosts: + - "*" + gateways: + - sdc-gateway + http: + - match: + - uri: + prefix: / + route: + - destination: + host: proxy-access-control + port: + number: 9180 + mirror: + host: snort-ids |
