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docs/doc/source/system_configuration/kubernetes/modifying-oam-firewall-rules.rst
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Signed-off-by: Rafael Jardim <rafaeljordao.jardim@windriver.com>
Change-Id: I461fce0c81f4605c200572ff71ae52cc889a856b
2021-03-08 10:52:00 -03:00

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Modify OAM Firewall Rules

supports custom firewall rules using Kubernetes Global Network Policies.

These policies are defined using yaml syntax. For example:

~(keystone_admin)]$ kubectl get globalnetworkpolicies.crd.projectcalico.org -o yaml
apiVersion: v1
items:
- apiVersion: crd.projectcalico.org/v1
  kind: GlobalNetworkPolicy
  metadata:
    creationTimestamp: "2019-06-28T17:06:33Z"
    generation: 1
    name: controller-oam-if-gnp
    resourceVersion: "1916"
    selfLink: /apis/crd.projectcalico.org/v1/globalnetworkpolicies/controller-oam-if-gnp
    uid: 146ec9a4-99c7-11e9-b187-0800275484ef
  spec:
    applyOnForward: false
    egress:
    - action: Allow
      ipVersion: 4
      protocol: TCP
    - action: Allow
      ipVersion: 4
      protocol: UDP
    - action: Allow
      protocol: ICMP
    ingress:
    - action: Allow
      destination:
        ports:
        - 22
        - 18002
        - 4545
        - 15491
        - 6385
        - 7777
        - 6443
        - 7480
        - 9311
        - 5000
        - 8080
      ipVersion: 4
      protocol: TCP
    - action: Allow
      destination:
        ports:
        - 2222
        - 2223
        - 123
        - 161
        - 162
        - 319
        - 320
      ipVersion: 4
      protocol: UDP
    - action: Allow
      protocol: ICMP
    order: 100
    selector: has(iftype) && iftype == 'oam'
    types:
    - Ingress
    - Egress
kind: List
metadata:
  resourceVersion: ""
  selfLink: ""

For a full description of syntax, see https://docs.projectcalico.org/v3.6/reference/calicoctl/resources/globalnetworkpolicy.

Use the following command to edit the globalnetworkpolicy and modify the Firewall according to the above syntax:

kubectl edit globalnetworkpolicy