multus-sample-application.yaml

gistfile1.txt

---
# This net-attach-def defines macvlan-conf with 
#   + ips capabilities to specify ip in pod annotation and 
#   + mac capabilities to specify mac address in pod annotation
# default gateway is defined as well
apiVersion: "k8s.cni.cncf.io/v1"
kind: NetworkAttachmentDefinition
metadata:
  name: macvlanpod-conf
spec: 
  config: '{
      "cniVersion": "0.3.1",
      "plugins": [
        {
          "type": "macvlan",
          "capabilities": { "ips": true },
          "master": "ens3.482",
          "mode": "bridge",
          "ipam": {
            "type": "static",
            "routes": [
              {
                "dst": "0.0.0.0/0",
                "gw": "10.250.0.1"
              }
            ] 
          }
        }, {
          "capabilities": { "mac": true },
          "type": "tuning"
        }
      ]
    }'
---
# Define a pod with macvlan-conf, defined above, with ip address and mac, and 
# "gateway" overrides default gateway to use macvlan-conf's one. 
# without "gateway" in k8s.v1.cni.cncf.io/networks, default route will be cluster
# network interface, eth0, even tough macvlan-conf has default gateway config.
apiVersion: v1
kind: Pod
metadata:
  name: macvlan-samplepod
  annotations:
    k8s.v1.cni.cncf.io/networks: '[
            { "name": "macvlanpod-conf",
              "ips": [ "10.250.3.200/32" ],
              "mac": "fa:16:3e:78:6d:08",
              "gateway": [ "10.250.0.1" ]
            }]'
spec:
  nodeSelector:
    beta.kubernetes.io/arch: amd64
    cni: multus
  containers:
  - name: samplepod
    command: ["/bin/bash", "-c", "trap : TERM INT; sleep infinity & wait"]
    image: dougbtv/centos-network
    ports:
    - containerPort: 80
---
apiVersion: v1
kind: Pod
metadata:
  name: macvlan-samplepod
  annotations:
    k8s.v1.cni.cncf.io/networks: macvlanpod-conf
spec:
  containers:
  - name: samplepod
    command: ["/bin/ash", "-c", "trap : TERM INT; sleep infinity & wait"]
    image: alpine
---

cat <<EOF | kubectl create -f -
apiVersion: "k8s.cni.cncf.io/v1"
kind: NetworkAttachmentDefinition
metadata:
  name: macvlan-conf-host
spec:
  config: '{
      "cniVersion": "0.3.0",
      "type": "macvlan",
      "master": "ens3",
      "mode": "bridge",
      "ipam": {
        "type": "host-local",
        "subnet": "192.168.4.0/24",
        "rangeStart": "192.168.4.200",
        "rangeEnd": "192.168.4.216",
        "routes": [
          { "dst": "0.0.0.0/0" }
        ],
        "gateway": "192.168.4.1"
      }
    }'
EOF


cat <<EOF | kubectl create -f -
apiVersion: v1
kind: Pod
metadata:
  name: samplepod-host
  annotations:
    k8s.v1.cni.cncf.io/networks: macvlan-conf-host
spec:
  nodeSelector:
    beta.kubernetes.io/arch: amd64
    cni: multus
  containers:
  - name: samplepod
    command: ["/bin/ash", "-c", "trap : TERM INT; sleep infinity & wait"]
    image: alpine
EOF