Knowledge sharing: Containers, Kubernetes, Openshift, F5 Container Connector, NGINX Ingress
For anyone interested about the free traning for "F5 Container Connector for Kubernetes" or "F5 OpenShift Container Integration" at "LearnF5". For NGINX being installed in Kubernetes there is enough info but for F5 Contaner Connector/Container Ingress Services there is not so much: https://docs.nginx.com/nginx-ingress-controller/f5-ingresslink/ https://www.nginx.com/products/nginx-ingress-controller/ https://community.f5.com/t5/technical-articles/better-together-f5-container-ingress-services-and-nginx-plus/ta-p/280471 F5 Devcentral also has youtube channel with usefull info: https://www.youtube.com/c/devcentral If you don't have good knowledge about containers and kubernetes then first check the links below. For Docker containers in youtube you will find a lot of good training for example: you need to learn Kubernetes RIGHT NOW!! - YouTube Docker Tutorial for Beginners [FULL COURSE in 3 Hours] - YouTube Docker overview | Docker Documentation The same is true for Kubernetes and they have a free test lab on their site: Learn Kubernetes Basics | Kubernetes you need to learn Docker RIGHT NOW!! // Docker Containers 101 - YouTube Red Hat has some free training and IBM provides some free labs for Containers, Kubernetes, Openshift etc.: Training and Certification (redhat.com) IBM CloudLabs: Free, Interactive Kubernetes Tutorials | IBM Red Hat OpenShift Tutorials | IBM
F5 Kubernetes Container Integration
Two problems, finding docs to setup f5 kube-proxy. The doc is missing from this link - http://clouddocs.f5.com/products/asp/v1.0/tbd but I havn't gotten far enough to be able to test communication. The second is k8s-bigip-ctlr is not writing VIP or pool updates. I have k8s-bigip-ctlr and asp running. $ kubectl get pods --namespace kube-system -o wide NAME READY STATUS RESTARTS AGE IP NODE f5-asp-1d61j 1/1 Running 0 57m 10.20.30.168 ranchernode2.lax.verifi.com f5-asp-9wmbw 1/1 Running 0 57m 10.20.30.162 ranchernode1.lax.verifi.com heapster-818085469-4bnsg 1/1 Running 7 25d 10.42.228.59 ranchernode1.lax.verifi.com k8s-bigip-ctlr-deployment-1527378375-d1p8v 1/1 Running 0 41m 10.42.68.136 ranchernode2.lax.verifi.com kube-dns-1208858260-ppgc0 4/4 Running 8 25d 10.42.26.16 ranchernode1.lax.verifi.com kubernetes-dashboard-2492700511-r20rw 1/1 Running 6 25d 10.42.29.28 ranchernode1.lax.verifi.com monitoring-grafana-832403127-cq197 1/1 Running 7 25d 10.42.240.16 ranchernode1.lax.verifi.com monitoring-influxdb-2441835288-p0sg1 1/1 Running 5 25d 10.42.86.70 ranchernode1.lax.verifi.com tiller-deploy-3991468440-1x80g 1/1 Running 6 25d 10.42.6.76 ranchernode1.lax.verifi.com I have tried with k8s-bigip-ctlr 1.0.0 (Latest), which fails with different errors. Creating VIP with bigip-virtual-server_v0.1.0.json 2017/06/27 22:50:13 [WARNING] Could not get config for ConfigMap: k8s.vs - minLength must be of an integer Creating Pool with bigip-virtual-server_v0.1.0.json 2017/06/27 22:46:45 [WARNING] Could not get config for ConfigMap: k8s.pool - format must be a valid format . So I tired 1.1.0-beta.1 and it does produce something in the logs like its working but doesn't write any changes to the F5. (using f5schemadb bigip-virtual-server_v0.1.3.json) Here using f5schemadb://bigip-virtual-server_v0.1.3.json with 1.1.0-beta.1 seems get the farthest. 2017/06/27 22:58:19 [DEBUG] Delegating type *v1.ConfigMap to virtual server processors 2017/06/27 22:58:19 [DEBUG] Process ConfigMap watch - change type: Add name: hello-vs namespace: default 2017/06/27 22:58:19 [DEBUG] Add watch of namespace default and resource services, store exists:true 2017/06/27 22:58:19 [DEBUG] Looking for service "hello" in namespace "default" as specified by ConfigMap "hello-vs". 2017/06/27 22:58:19 [DEBUG] Requested service backend {ServiceName:hello ServicePort:80 Namespace:default} not of NodePort type 2017/06/27 22:58:19 [DEBUG] Updating ConfigMap {ServiceName:hello ServicePort:80 Namespace:default} annotation - status.virtual-server.f5.com/ip: 10.20.28.70 2017/06/27 22:58:19 [DEBUG] ConfigWriter (0xc42039b3b0) writing section name services 2017/06/27 22:58:19 [DEBUG] ConfigWriter (0xc42039b3b0) successfully wrote section (services) 2017/06/27 22:58:19 [INFO] Wrote 0 Virtual Server configs 2017/06/27 22:58:19 [DEBUG] Services: [] 2017/06/27 22:58:19 [DEBUG] Delegating type *v1.ConfigMap to virtual server processors 2017/06/27 22:58:19 [DEBUG] Process ConfigMap watch - change type: Update name: hello-vs namespace: default 2017/06/27 22:58:19 [DEBUG] Add watch of namespace default and resource services, store exists:true 2017/06/27 22:58:19 [DEBUG] Looking for service "hello" in namespace "default" as specified by ConfigMap "hello-vs". 2017/06/27 22:58:19 [DEBUG] Requested service backend {ServiceName:hello ServicePort:80 Namespace:default} not of NodePort type 2017/06/27 22:58:19 [DEBUG] ConfigWriter (0xc42039b3b0) writing section name services 2017/06/27 22:58:19 [DEBUG] ConfigWriter (0xc42039b3b0) successfully wrote section (services) 2017/06/27 22:58:19 [INFO] Wrote 0 Virtual Server configs 2017/06/27 22:58:19 [DEBUG] Services: [] Config Map kind: ConfigMap apiVersion: v1 metadata: name: hello-vs namespace: default labels: f5type: virtual-server data: schema: "f5schemadb://bigip-virtual-server_v0.1.3.json" data: |- { "virtualServer": { "frontend": { "balance": "round-robin", "mode": "http", "partition": "kubernetes", "virtualAddress": { "bindAddr": "10.20.28.70", "port": 443 } }, "backend": { "serviceName": "hello", "servicePort": 80 } } }Port Redirection Failure
I'm using a Non-Prod F5 running 12.1.2 Build 1.292.271. We have a cluster of nodes that serve up various Apps on different ports. /App1 - 80 /App2 - 81 /App3 - 82 I have configured a pool with members that have all service ports enabled. Also a single VS with a VIP and a service port of 0. Here is my iRule: when HTTP_REQUEST { switch -glob [HTTP::uri] { "/App1*" { set port 80 } "/App2*" { set port 81 } "/App3* { set port 82 } } } when LB_SELECTED { pool [LB::server pool] member [LB::server addr] $port } When running statistics on the iRule I get failures in the "LB_SELECTED" part however from my prospective this should be the correct syntax to change the service port on a pool. I would like some feedback on this configuration and if someone can comment on this configuration. Thanks.
