diff --git a/docs/11-pod-network-routes.md b/docs/11-pod-network-routes.md index 0e7ccd4..900eb8e 100644 --- a/docs/11-pod-network-routes.md +++ b/docs/11-pod-network-routes.md @@ -8,53 +8,31 @@ In this lab you will create a route for each worker node that maps the node's Po ## The Routing Table -In this section you will gather the information required to create routes in the `kubernetes-the-hard-way` VPC network. - -Print the internal IP address and Pod CIDR range for each worker instance: +**On each worker node**, add the following routes: ```bash -for instance in worker-0 worker-1 worker-2; do - gcloud compute instances describe ${instance} \ - --format 'value[separator=" "](networkInterfaces[0].networkIP,metadata.items[0].value)' -done +ip route add 10.200.0.0/24 via 192.168.8.20 +ip route add 10.200.1.0/24 via 192.168.8.21 +ip route add 10.200.2.0/24 via 192.168.8.22 ``` -> output - -```bash -10.240.0.20 10.200.0.0/24 -10.240.0.21 10.200.1.0/24 -10.240.0.22 10.200.2.0/24 -``` - -## Routes - -Create network routes for each worker instance: - -```bash -for i in 0 1 2; do - gcloud compute routes create kubernetes-route-10-200-${i}-0-24 \ - --network kubernetes-the-hard-way \ - --next-hop-address 10.240.0.2${i} \ - --destination-range 10.200.${i}.0/24 -done -``` +> Don't take care of the `RTNETLINK answers: File exists` message, it appears just when you try to add an existing route, not a real problem. List the routes in the `kubernetes-the-hard-way` VPC network: ```bash -gcloud compute routes list --filter "network: kubernetes-the-hard-way" +ip route ``` -> output +> Output: ```bash -NAME NETWORK DEST_RANGE NEXT_HOP PRIORITY -default-route-081879136902de56 kubernetes-the-hard-way 10.240.0.0/24 kubernetes-the-hard-way 1000 -default-route-55199a5aa126d7aa kubernetes-the-hard-way 0.0.0.0/0 default-internet-gateway 1000 -kubernetes-route-10-200-0-0-24 kubernetes-the-hard-way 10.200.0.0/24 10.240.0.20 1000 -kubernetes-route-10-200-1-0-24 kubernetes-the-hard-way 10.200.1.0/24 10.240.0.21 1000 -kubernetes-route-10-200-2-0-24 kubernetes-the-hard-way 10.200.2.0/24 10.240.0.22 1000 +default via 192.168.8.1 dev ens18 proto static +10.200.0.0/24 dev cnio0 proto kernel scope link src 10.200.0.1 linkdown +10.200.0.0/24 via 192.168.8.20 dev ens18 +10.200.1.0/24 via 192.168.8.21 dev ens18 +10.200.2.0/24 via 192.168.8.22 dev ens18 +192.168.8.0/24 dev ens18 proto kernel scope link src 192.168.8.21 ``` Next: [Deploying the DNS Cluster Add-on](12-dns-addon.md)