Red Hat Summit Red Hat SummitSupportoConsoleSviluppatoriInizia una provaContatti

Questo contenuto non è disponibile nella lingua selezionata.

Chapter 2. Admin network policy

2.1. OVN-Kubernetes AdminNetworkPolicy
Copia collegamento

2.1.1. AdminNetworkPolicy
Copia collegamento

An AdminNetworkPolicy (ANP) is a cluster-scoped custom resource definition (CRD). As a OpenShift Container Platform administrator, you can use ANP to secure your network by creating network policies before creating namespaces. Additionally, you can create network policies on a cluster-scoped level that is non-overridable by NetworkPolicy objects.

The key difference between AdminNetworkPolicy and NetworkPolicy objects are that the former is for administrators and is cluster scoped while the latter is for tenant owners and is namespace scoped.

An ANP allows administrators to specify the following:

  • A priority value that determines the order of its evaluation. The lower the value the higher the precedence.
  • A set of pods that consists of a set of namespaces or namespace on which the policy is applied.
  • A list of ingress rules to be applied for all ingress traffic towards the subject.
  • A list of egress rules to be applied for all egress traffic from the subject.

2.1.1.1. AdminNetworkPolicy example
Copia collegamento

Example 2.1. Example YAML file for an ANP

apiVersion: policy.networking.k8s.io/v1alpha1
kind: AdminNetworkPolicy
metadata:
  name: sample-anp-deny-pass-rules
1 

spec:
  priority: 50
2 

  subject:
    namespaces:
      matchLabels:
          kubernetes.io/metadata.name: example.name
3 

  ingress:
4 

  - name: "deny-all-ingress-tenant-1"
5 

    action: "Deny"
    from:
    - pods:
        namespaceSelector:
          matchLabels:
            custom-anp: tenant-1
        podSelector:
          matchLabels:
            custom-anp: tenant-1
6 

  egress:
7 

  - name: "pass-all-egress-to-tenant-1"
    action: "Pass"
    to:
    - pods:
        namespaceSelector:
          matchLabels:
            custom-anp: tenant-1
        podSelector:
          matchLabels:
            custom-anp: tenant-1
Copy to Clipboard Toggle word wrap
1
Specify a name for your ANP.
2
The spec.priority field supports a maximum of 100 ANPs in the range of values 0-99 in a cluster. The lower the value, the higher the precedence because the range is read in order from the lowest to highest value. Because there is no guarantee which policy takes precedence when ANPs are created at the same priority, set ANPs at different priorities so that precedence is deliberate.
3
Specify the namespace to apply the ANP resource.
4
ANP have both ingress and egress rules. ANP rules for spec.ingress field accepts values of Pass, Deny, and Allow for the action field.
5
Specify a name for the ingress.name.
6
Specify podSelector.matchLabels to select pods within the namespaces selected by namespaceSelector.matchLabels as ingress peers.
7
ANPs have both ingress and egress rules. ANP rules for spec.egress field accepts values of Pass, Deny, and Allow for the action field.

Additional resources

2.1.1.2. AdminNetworkPolicy actions for rules
Copia collegamento

As an administrator, you can set Allow, Deny, or Pass as the action field for your AdminNetworkPolicy rules. Because OVN-Kubernetes uses a tiered ACLs to evaluate network traffic rules, ANP allow you to set very strong policy rules that can only be changed by an administrator modifying them, deleting the rule, or overriding them by setting a higher priority rule.

2.1.1.2.1. AdminNetworkPolicy Allow example
Copia collegamento

The following ANP that is defined at priority 9 ensures all ingress traffic is allowed from the monitoring namespace towards any tenant (all other namespaces) in the cluster.

Example 2.2. Example YAML file for a strong Allow ANP

apiVersion: policy.networking.k8s.io/v1alpha1
kind: AdminNetworkPolicy
metadata:
  name: allow-monitoring
spec:
  priority: 9
  subject:
    namespaces: {} # Use the empty selector with caution because it also selects OpenShift namespaces as well.
  ingress:
  - name: "allow-ingress-from-monitoring"
    action: "Allow"
    from:
    - namespaces:
        matchLabels:
          kubernetes.io/metadata.name: monitoring
# ...
Copy to Clipboard Toggle word wrap

This is an example of a strong Allow ANP because it is non-overridable by all the parties involved. No tenants can block themselves from being monitored using NetworkPolicy objects and the monitoring tenant also has no say in what it can or cannot monitor.

2.1.1.2.2. AdminNetworkPolicy Deny example
Copia collegamento

The following ANP that is defined at priority 5 ensures all ingress traffic from the monitoring namespace is blocked towards restricted tenants (namespaces that have labels security: restricted).

Example 2.3. Example YAML file for a strong Deny ANP

apiVersion: policy.networking.k8s.io/v1alpha1
kind: AdminNetworkPolicy
metadata:
  name: block-monitoring
spec:
  priority: 5
  subject:
    namespaces:
      matchLabels:
        security: restricted
  ingress:
  - name: "deny-ingress-from-monitoring"
    action: "Deny"
    from:
    - namespaces:
        matchLabels:
          kubernetes.io/metadata.name: monitoring
# ...
Copy to Clipboard Toggle word wrap

This is a strong Deny ANP that is non-overridable by all the parties involved. The restricted tenant owners cannot authorize themselves to allow monitoring traffic, and the infrastructure’s monitoring service cannot scrape anything from these sensitive namespaces.

When combined with the strong Allow example, the block-monitoring ANP has a lower priority value giving it higher precedence, which ensures restricted tenants are never monitored.

2.1.1.2.3. AdminNetworkPolicy Pass example
Copia collegamento

The following ANP that is defined at priority 7 ensures all ingress traffic from the monitoring namespace towards internal infrastructure tenants (namespaces that have labels security: internal) are passed on to tier 2 of the ACLs and evaluated by the namespaces’ NetworkPolicy objects.

Example 2.4. Example YAML file for a strong Pass ANP

apiVersion: policy.networking.k8s.io/v1alpha1
kind: AdminNetworkPolicy
metadata:
  name: pass-monitoring
spec:
  priority: 7
  subject:
    namespaces:
      matchLabels:
        security: internal
  ingress:
  - name: "pass-ingress-from-monitoring"
    action: "Pass"
    from:
    - namespaces:
        matchLabels:
          kubernetes.io/metadata.name: monitoring
# ...
Copy to Clipboard Toggle word wrap

This example is a strong Pass action ANP because it delegates the decision to NetworkPolicy objects defined by tenant owners. This pass-monitoring ANP allows all tenant owners grouped at security level internal to choose if their metrics should be scraped by the infrastructures' monitoring service using namespace scoped NetworkPolicy objects.

2.2. OVN-Kubernetes BaselineAdminNetworkPolicy
Copia collegamento

2.2.1. BaselineAdminNetworkPolicy
Copia collegamento

BaselineAdminNetworkPolicy (BANP) is a cluster-scoped custom resource definition (CRD). As a OpenShift Container Platform administrator, you can use BANP to setup and enforce optional baseline network policy rules that are overridable by users using NetworkPolicy objects if need be. Rule actions for BANP are allow or deny.

The BaselineAdminNetworkPolicy resource is a cluster singleton object that can be used as a guardrail policy incase a passed traffic policy does not match any NetworkPolicy objects in the cluster. A BANP can also be used as a default security model that provides guardrails that intra-cluster traffic is blocked by default and a user will need to use NetworkPolicy objects to allow known traffic. You must use default as the name when creating a BANP resource.

A BANP allows administrators to specify:

  • A subject that consists of a set of namespaces or namespace.
  • A list of ingress rules to be applied for all ingress traffic towards the subject.
  • A list of egress rules to be applied for all egress traffic from the subject.

2.2.1.1. BaselineAdminNetworkPolicy example
Copia collegamento

Example 2.5. Example YAML file for BANP

apiVersion: policy.networking.k8s.io/v1alpha1
kind: BaselineAdminNetworkPolicy
metadata:
  name: default
1 

spec:
  subject:
    namespaces:
      matchLabels:
          kubernetes.io/metadata.name: example.name
2 

  ingress:
3 

  - name: "deny-all-ingress-from-tenant-1"
4 

    action: "Deny"
    from:
    - pods:
        namespaceSelector:
          matchLabels:
            custom-banp: tenant-1
5 

        podSelector:
          matchLabels:
            custom-banp: tenant-1
6 

  egress:
  - name: "allow-all-egress-to-tenant-1"
    action: "Allow"
    to:
    - pods:
        namespaceSelector:
          matchLabels:
            custom-banp: tenant-1
        podSelector:
          matchLabels:
            custom-banp: tenant-1
Copy to Clipboard Toggle word wrap
1
The policy name must be default because BANP is a singleton object.
2
Specify the namespace to apply the ANP to.
3
BANP have both ingress and egress rules. BANP rules for spec.ingress and spec.egress fields accepts values of Deny and Allow for the action field.
4
Specify a name for the ingress.name
5
Specify the namespaces to select the pods from to apply the BANP resource.
6
Specify podSelector.matchLabels name of the pods to apply the BANP resource.

2.2.1.2. BaselineAdminNetworkPolicy Deny example
Copia collegamento

The following BANP singleton ensures that the administrator has set up a default deny policy for all ingress monitoring traffic coming into the tenants at internal security level. When combined with the "AdminNetworkPolicy Pass example", this deny policy acts as a guardrail policy for all ingress traffic that is passed by the ANP pass-monitoring policy.

Example 2.6. Example YAML file for a guardrail Deny rule

apiVersion: policy.networking.k8s.io/v1alpha1
kind: BaselineAdminNetworkPolicy
metadata:
  name: default
spec:
  subject:
    namespaces:
      matchLabels:
        security: internal
  ingress:
  - name: "deny-ingress-from-monitoring"
    action: "Deny"
    from:
    - namespaces:
        matchLabels:
          kubernetes.io/metadata.name: monitoring
# ...
Copy to Clipboard Toggle word wrap

You can use an AdminNetworkPolicy resource with a Pass value for the action field in conjunction with the BaselineAdminNetworkPolicy resource to create a multi-tenant policy. This multi-tenant policy allows one tenant to collect monitoring data on their application while simultaneously not collecting data from a second tenant.

As an administrator, if you apply both the "AdminNetworkPolicy Pass action example" and the "BaselineAdminNetwork Policy Deny example", tenants are then left with the ability to choose to create a NetworkPolicy resource that will be evaluated before the BANP.

For example, Tenant 1 can set up the following NetworkPolicy resource to monitor ingress traffic:

Example 2.7. Example NetworkPolicy

apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
  name: allow-monitoring
  namespace: tenant 1
spec:
  podSelector:
  policyTypes:
    - Ingress
  ingress:
  - from:
    - namespaceSelector:
        matchLabels:
          kubernetes.io/metadata.name: monitoring
# ...
Copy to Clipboard Toggle word wrap

In this scenario, Tenant 1’s policy would be evaluated after the "AdminNetworkPolicy Pass action example" and before the "BaselineAdminNetwork Policy Deny example", which denies all ingress monitoring traffic coming into tenants with security level internal. With Tenant 1’s NetworkPolicy object in place, they will be able to collect data on their application. Tenant 2, however, who does not have any NetworkPolicy objects in place, will not be able to collect data. As an administrator, you have not by default monitored internal tenants, but instead, you created a BANP that allows tenants to use NetworkPolicy objects to override the default behavior of your BANP.

2.3. Monitoring ANP and BANP
Copia collegamento

AdminNetworkPolicy and BaselineAdminNetworkPolicy resources have metrics that can be used for monitoring and managing your policies. See the following table for more details on the metrics.

2.3.1. Metrics for AdminNetworkPolicy
Copia collegamento

Expand
NameDescriptionExplanation

ovnkube_controller_admin_network_policies

Not applicable

The total number of AdminNetworkPolicy resources in the cluster.

ovnkube_controller_baseline_admin_network_policies

Not applicable

The total number of BaselineAdminNetworkPolicy resources in the cluster. The value should be 0 or 1.

ovnkube_controller_admin_network_policies_rules

  • direction: specifies either Ingress or Egress.
  • action: specifies either Pass, Allow, or Deny.

The total number of rules across all ANP policies in the cluster grouped by direction and action.

ovnkube_controller_baseline_admin_network_policies_rules

  • direction: specifies either Ingress or Egress.
  • action: specifies either Allow or Deny.

The total number of rules across all BANP policies in the cluster grouped by direction and action.

ovnkube_controller_admin_network_policies_db_objects

table_name: specifies either ACL or Address_Set

The total number of OVN Northbound database (nbdb) objects that are created by all the ANP in the cluster grouped by the table_name.

ovnkube_controller_baseline_admin_network_policies_db_objects

table_name: specifies either ACL or Address_Set

The total number of OVN Northbound database (nbdb) objects that are created by all the BANP in the cluster grouped by the table_name.

2.4. Egress nodes and networks peer for AdminNetworkPolicy
Copia collegamento

This section explains nodes and networks peers. Administrators can use the examples in this section to design AdminNetworkPolicy and BaselineAdminNetworkPolicy to control northbound traffic in their cluster.

In addition to supporting east-west traffic controls, ANP and BANP also allow administrators to control their northbound traffic leaving the cluster or traffic leaving the node to other nodes in the cluster. End-users can do the following:

  • Implement egress traffic control towards cluster nodes using nodes egress peer
  • Implement egress traffic control towards Kubernetes API servers using nodes or networks egress peers
  • Implement egress traffic control towards external destinations outside the cluster using networks peer
Note

For ANP and BANP, nodes and networks peers can be specified for egress rules only.

2.4.1.1. Using nodes peer to control egress traffic to cluster nodes
Copia collegamento

Using the nodes peer administrators can control egress traffic from pods to nodes in the cluster. A benefit of this is that you do not have to change the policy when nodes are added to or deleted from the cluster.

The following example allows egress traffic to the Kubernetes API server on port 6443 by any of the namespaces with a restricted, confidential, or internal level of security using the node selector peer. It also denies traffic to all worker nodes in your cluster from any of the namespaces with a restricted, confidential, or internal level of security.

Example 2.8. Example of ANP Allow egress using nodes peer

apiVersion: policy.networking.k8s.io/v1alpha1
kind: AdminNetworkPolicy
metadata:
  name: egress-security-allow
spec:
  egress:
  - action: Deny
    to:
    - nodes:
        matchExpressions:
        - key: node-role.kubernetes.io/worker
          operator: Exists
  - action: Allow
    name: allow-to-kubernetes-api-server-and-engr-dept-pods
    ports:
    - portNumber:
        port: 6443
        protocol: TCP
    to:
    - nodes:
1 

        matchExpressions:
        - key: node-role.kubernetes.io/control-plane
          operator: Exists
    - pods:
2 

        namespaceSelector:
          matchLabels:
            dept: engr
        podSelector: {}
  priority: 55
  subject:
3 

    namespaces:
      matchExpressions:
      - key: security
4 

        operator: In
        values:
        - restricted
        - confidential
        - internal
Copy to Clipboard Toggle word wrap
1
Specifies a node or set of nodes in the cluster using the matchExpressions field.
2
Specifies all the pods labeled with dept: engr.
3
Specifies the subject of the ANP which includes any namespaces that match the labels used by the network policy. The example matches any of the namespaces with restricted, confidential, or internal level of security.
4
Specifies key/value pairs for matchExpressions field.

Cluster administrators can use CIDR ranges in networks peer and apply a policy to control egress traffic leaving from pods and going to a destination configured at the IP address that is within the CIDR range specified with networks field.

The following example uses networks peer and combines ANP and BANP policies to restrict egress traffic.

Important

Use the empty selector ({}) in the namespace field for ANP and BANP with caution. When using an empty selector, it also selects OpenShift namespaces.

If you use values of 0.0.0.0/0 in a ANP or BANP Deny rule, you must set a higher priority ANP Allow rule to necessary destinations before setting the Deny to 0.0.0.0/0.

Example 2.9. Example of ANP and BANP using networks peers

apiVersion: policy.networking.k8s.io/v1alpha1
kind: AdminNetworkPolicy
metadata:
  name: network-as-egress-peer
spec:
  priority: 70
  subject:
    namespaces: {} # Use the empty selector with caution because it also selects OpenShift namespaces as well.
  egress:
  - name: "deny-egress-to-external-dns-servers"
    action: "Deny"
    to:
    - networks:
1 

      - 8.8.8.8/32
      - 8.8.4.4/32
      - 208.67.222.222/32
    ports:
      - portNumber:
          protocol: UDP
          port: 53
  - name: "allow-all-egress-to-intranet"
    action: "Allow"
    to:
    - networks:
2 

      - 89.246.180.0/22
      - 60.45.72.0/22
  - name: "allow-all-intra-cluster-traffic"
    action: "Allow"
    to:
    - namespaces: {} # Use the empty selector with caution because it also selects OpenShift namespaces as well.
  - name: "pass-all-egress-to-internet"
    action: "Pass"
    to:
    - networks:
      - 0.0.0.0/0
3 

---
apiVersion: policy.networking.k8s.io/v1alpha1
kind: BaselineAdminNetworkPolicy
metadata:
  name: default
spec:
  subject:
    namespaces: {} # Use the empty selector with caution because it also selects OpenShift namespaces as well.
  egress:
  - name: "deny-all-egress-to-internet"
    action: "Deny"
    to:
    - networks:
      - 0.0.0.0/0
4 

---
Copy to Clipboard Toggle word wrap
1
Use networks to specify a range of CIDR networks outside of the cluster.
2
Specifies the CIDR ranges for the intra-cluster traffic from your resources.
3 4
Specifies a Deny egress to everything by setting networks values to 0.0.0.0/0. Make sure you have a higher priority Allow rule to necessary destinations before setting a Deny to 0.0.0.0/0 because this will deny all traffic including to Kubernetes API and DNS servers.

Collectively the network-as-egress-peer ANP and default BANP using networks peers enforces the following egress policy:

  • All pods cannot talk to external DNS servers at the listed IP addresses.
  • All pods can talk to rest of the company’s intranet.
  • All pods can talk to other pods, nodes, and services.
  • All pods cannot talk to the internet. Combining the last ANP Pass rule and the strong BANP Deny rule a guardrail policy is created that secures traffic in the cluster.

2.4.1.3. Using nodes peer and networks peer together
Copia collegamento

Cluster administrators can combine nodes and networks peer in your ANP and BANP policies.

Example 2.10. Example of nodes and networks peer

apiVersion: policy.networking.k8s.io/v1alpha1
kind: AdminNetworkPolicy
metadata:
  name: egress-peer-1
1 

spec:
  egress:
2 

  - action: "Allow"
    name: "allow-egress"
    to:
    - nodes:
        matchExpressions:
        - key: worker-group
          operator: In
          values:
          - workloads # Egress traffic from nodes with label worker-group: workloads is allowed.
    - networks:
      - 104.154.164.170/32
    - pods:
        namespaceSelector:
          matchLabels:
            apps: external-apps
        podSelector:
          matchLabels:
            app: web # This rule in the policy allows the traffic directed to pods labeled apps: web in projects with apps: external-apps to leave the cluster.
  - action: "Deny"
    name: "deny-egress"
    to:
    - nodes:
        matchExpressions:
        - key: worker-group
          operator: In
          values:
          - infra # Egress traffic from nodes with label worker-group: infra is denied.
    - networks:
      - 104.154.164.160/32 # Egress traffic to this IP address from cluster is denied.
    - pods:
        namespaceSelector:
          matchLabels:
            apps: internal-apps
        podSelector: {}
  - action: "Pass"
    name: "pass-egress"
    to:
    - nodes:
        matchExpressions:
        - key: node-role.kubernetes.io/worker
          operator: Exists # All other egress traffic is passed to NetworkPolicy or BANP for evaluation.
  priority: 30
3 

  subject:
4 

    namespaces:
      matchLabels:
        apps: all-apps
Copy to Clipboard Toggle word wrap
1
Specifies the name of the policy.
2
For nodes and networks peers, you can only use northbound traffic controls in ANP as egress.
3
Specifies the priority of the ANP, determining the order in which they should be evaluated. Lower priority rules have higher precedence. ANP accepts values of 0-99 with 0 being the highest priority and 99 being the lowest.
4
Specifies the set of pods in the cluster on which the rules of the policy are to be applied. In the example, any pods with the apps: all-apps label across all namespaces are the subject of the policy.

2.5. Troubleshooting AdminNetworkPolicy
Copia collegamento

2.5.1. Checking creation of ANP
Copia collegamento

To check that your AdminNetworkPolicy (ANP) and BaselineAdminNetworkPolicy (BANP) are created correctly, check the status outputs of the following commands: oc describe anp or oc describe banp.

A good status indicates OVN DB plumbing was successful and the SetupSucceeded.

Example 2.11. Example ANP with a good status

...
Conditions:
Last Transition Time:  2024-06-08T20:29:00Z
Message:               Setting up OVN DB plumbing was successful
Reason:                SetupSucceeded
Status:                True
Type:                  Ready-In-Zone-ovn-control-plane Last Transition Time:  2024-06-08T20:29:00Z
Message:               Setting up OVN DB plumbing was successful
Reason:                SetupSucceeded
Status:                True
Type:                  Ready-In-Zone-ovn-worker
Last Transition Time:  2024-06-08T20:29:00Z
Message:               Setting up OVN DB plumbing was successful
Reason:                SetupSucceeded
Status:                True
Type:                  Ready-In-Zone-ovn-worker2
...
Copy to Clipboard Toggle word wrap

If plumbing is unsuccessful, an error is reported from the respective zone controller.

Example 2.12. Example of an ANP with a bad status and error message

...
Status:
  Conditions:
    Last Transition Time:  2024-06-25T12:47:44Z
    Message:               error attempting to add ANP cluster-control with priority 600 because, OVNK only supports priority ranges 0-99
    Reason:                SetupFailed
    Status:                False
    Type:                  Ready-In-Zone-example-worker-1.example.example-org.net
    Last Transition Time:  2024-06-25T12:47:45Z
    Message:               error attempting to add ANP cluster-control with priority 600 because, OVNK only supports priority ranges 0-99
    Reason:                SetupFailed
    Status:                False
    Type:                  Ready-In-Zone-example-worker-0.example.example-org.net
    Last Transition Time:  2024-06-25T12:47:44Z
    Message:               error attempting to add ANP cluster-control with priority 600 because, OVNK only supports priority ranges 0-99
    Reason:                SetupFailed
    Status:                False
    Type:                  Ready-In-Zone-example-ctlplane-1.example.example-org.net
    Last Transition Time:  2024-06-25T12:47:44Z
    Message:               error attempting to add ANP cluster-control with priority 600 because, OVNK only supports priority ranges 0-99
    Reason:                SetupFailed
    Status:                False
    Type:                  Ready-In-Zone-example-ctlplane-2.example.example-org.net
    Last Transition Time:  2024-06-25T12:47:44Z
    Message:               error attempting to add ANP cluster-control with priority 600 because, OVNK only supports priority ranges 0-99
    Reason:                SetupFailed
    Status:                False
    Type:                  Ready-In-Zone-example-ctlplane-0.example.example-org.net
    ```
Copy to Clipboard Toggle word wrap

See the following section for nbctl commands to help troubleshoot unsuccessful policies.

2.5.1.1. Using nbctl commands for ANP and BANP
Copia collegamento

To troubleshoot an unsuccessful setup, start by looking at OVN Northbound database (nbdb) objects including ACL, AdressSet, and Port_Group. To view the nbdb, you need to be inside the pod on that node to view the objects in that node’s database.

Prerequisites

  • Access to the cluster as a user with the cluster-admin role.
  • The OpenShift CLI (oc) installed.
Note

To run ovn nbctl commands in a cluster, you must open a remote shell into the `nbdb`on the relevant node.

The following policy was used to generate outputs.

Example 2.13. AdminNetworkPolicy used to generate outputs

apiVersion: policy.networking.k8s.io/v1alpha1
kind: AdminNetworkPolicy
metadata:
  name: cluster-control
spec:
  priority: 34
  subject:
    namespaces:
      matchLabels:
        anp: cluster-control-anp # Only namespaces with this label have this ANP
  ingress:
  - name: "allow-from-ingress-router" # rule0
    action: "Allow"
    from:
    - namespaces:
        matchLabels:
          policy-group.network.openshift.io/ingress: ""
  - name: "allow-from-monitoring" # rule1
    action: "Allow"
    from:
    - namespaces:
        matchLabels:
          kubernetes.io/metadata.name: openshift-monitoring
    ports:
    - portNumber:
        protocol: TCP
        port: 7564
    - namedPort: "scrape"
  - name: "allow-from-open-tenants" # rule2
    action: "Allow"
    from:
    - namespaces: # open tenants
        matchLabels:
          tenant: open
  - name: "pass-from-restricted-tenants" # rule3
    action: "Pass"
    from:
    - namespaces: # restricted tenants
        matchLabels:
          tenant: restricted
  - name: "default-deny" # rule4
    action: "Deny"
    from:
    - namespaces: {} # Use the empty selector with caution because it also selects OpenShift namespaces as well.
  egress:
  - name: "allow-to-dns" # rule0
    action: "Allow"
    to:
    - pods:
        namespaceSelector:
          matchLabels:
            kubernetes.io/metadata.name: openshift-dns
        podSelector:
          matchLabels:
            app: dns
    ports:
    - portNumber:
        protocol: UDP
        port: 5353
  - name: "allow-to-kapi-server" # rule1
    action: "Allow"
    to:
    - nodes:
        matchExpressions:
        - key: node-role.kubernetes.io/control-plane
          operator: Exists
    ports:
    - portNumber:
        protocol: TCP
        port: 6443
  - name: "allow-to-splunk" # rule2
    action: "Allow"
    to:
    - namespaces:
        matchLabels:
          tenant: splunk
    ports:
    - portNumber:
        protocol: TCP
        port: 8991
    - portNumber:
        protocol: TCP
        port: 8992
  - name: "allow-to-open-tenants-and-intranet-and-worker-nodes" # rule3
    action: "Allow"
    to:
    - nodes: # worker-nodes
        matchExpressions:
        - key: node-role.kubernetes.io/worker
          operator: Exists
    - networks: # intranet
      - 172.29.0.0/30
      - 10.0.54.0/19
      - 10.0.56.38/32
      - 10.0.69.0/24
    - namespaces: # open tenants
        matchLabels:
          tenant: open
  - name: "pass-to-restricted-tenants" # rule4
    action: "Pass"
    to:
    - namespaces: # restricted tenants
        matchLabels:
          tenant: restricted
  - name: "default-deny"
    action: "Deny"
    to:
    - networks:
      - 0.0.0.0/0
Copy to Clipboard Toggle word wrap

Procedure

  1. List pods with node information by running the following command: 

    $ oc get pods -n openshift-ovn-kubernetes -owide
    Copy to Clipboard Toggle word wrap

    Example output

    NAME                                     READY   STATUS    RESTARTS   AGE   IP           NODE                                       NOMINATED NODE   READINESS GATES
ovnkube-control-plane-5c95487779-8k9fd   2/2     Running   0          34m   10.0.0.5     ci-ln-0tv5gg2-72292-6sjw5-master-0         <none>           <none>
ovnkube-control-plane-5c95487779-v2xn8   2/2     Running   0          34m   10.0.0.3     ci-ln-0tv5gg2-72292-6sjw5-master-1         <none>           <none>
ovnkube-node-524dt                       8/8     Running   0          33m   10.0.0.4     ci-ln-0tv5gg2-72292-6sjw5-master-2         <none>           <none>
ovnkube-node-gbwr9                       8/8     Running   0          24m   10.0.128.4   ci-ln-0tv5gg2-72292-6sjw5-worker-c-s9gqt   <none>           <none>
ovnkube-node-h4fpx                       8/8     Running   0          33m   10.0.0.5     ci-ln-0tv5gg2-72292-6sjw5-master-0         <none>           <none>
ovnkube-node-j4hzw                       8/8     Running   0          24m   10.0.128.2   ci-ln-0tv5gg2-72292-6sjw5-worker-a-hzbh5   <none>           <none>
ovnkube-node-wdhgv                       8/8     Running   0          33m   10.0.0.3     ci-ln-0tv5gg2-72292-6sjw5-master-1         <none>           <none>
ovnkube-node-wfncn                       8/8     Running   0          24m   10.0.128.3   ci-ln-0tv5gg2-72292-6sjw5-worker-b-5bb7f   <none>           <none>
    Copy to Clipboard Toggle word wrap

  2. Navigate into a pod to look at the northbound database by running the following command: 

    $ oc rsh -c nbdb -n openshift-ovn-kubernetes ovnkube-node-524dt
    Copy to Clipboard Toggle word wrap

  3. Run the following command to look at the ACLs nbdb: 

    $ ovn-nbctl find ACL 'external_ids{>=}{"k8s.ovn.org/owner-type"=AdminNetworkPolicy,"k8s.ovn.org/name"=cluster-control}'
    Copy to Clipboard Toggle word wrap
    Where, cluster-control
    Specifies the name of the AdminNetworkPolicy you are troubleshooting.
    AdminNetworkPolicy
    Specifies the type: AdminNetworkPolicy or BaselineAdminNetworkPolicy.

    Example 2.14. Example output for ACLs

    _uuid               : 0d5e4722-b608-4bb1-b625-23c323cc9926
action              : allow-related
direction           : to-lport
external_ids        : {direction=Ingress, gress-index="2", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Ingress:2:None", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=None}
label               : 0
log                 : false
match               : "outport == @a14645450421485494999 && ((ip4.src == $a13730899355151937870))"
meter               : acl-logging
name                : "ANP:cluster-control:Ingress:2"
options             : {}
priority            : 26598
severity            : []
tier                : 1

_uuid               : b7be6472-df67-439c-8c9c-f55929f0a6e0
action              : drop
direction           : from-lport
external_ids        : {direction=Egress, gress-index="5", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:5:None", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=None}
label               : 0
log                 : false
match               : "inport == @a14645450421485494999 && ((ip4.dst == $a11452480169090787059))"
meter               : acl-logging
name                : "ANP:cluster-control:Egress:5"
options             : {apply-after-lb="true"}
priority            : 26595
severity            : []
tier                : 1

_uuid               : 5a6e5bb4-36eb-4209-b8bc-c611983d4624
action              : pass
direction           : to-lport
external_ids        : {direction=Ingress, gress-index="3", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Ingress:3:None", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=None}
label               : 0
log                 : false
match               : "outport == @a14645450421485494999 && ((ip4.src == $a764182844364804195))"
meter               : acl-logging
name                : "ANP:cluster-control:Ingress:3"
options             : {}
priority            : 26597
severity            : []
tier                : 1

_uuid               : 04f20275-c410-405c-a923-0e677f767889
action              : pass
direction           : from-lport
external_ids        : {direction=Egress, gress-index="4", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:4:None", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=None}
label               : 0
log                 : false
match               : "inport == @a14645450421485494999 && ((ip4.dst == $a5972452606168369118))"
meter               : acl-logging
name                : "ANP:cluster-control:Egress:4"
options             : {apply-after-lb="true"}
priority            : 26596
severity            : []
tier                : 1

_uuid               : 4b5d836a-e0a3-4088-825e-f9f0ca58e538
action              : drop
direction           : to-lport
external_ids        : {direction=Ingress, gress-index="4", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Ingress:4:None", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=None}
label               : 0
log                 : false
match               : "outport == @a14645450421485494999 && ((ip4.src == $a13814616246365836720))"
meter               : acl-logging
name                : "ANP:cluster-control:Ingress:4"
options             : {}
priority            : 26596
severity            : []
tier                : 1

_uuid               : 5d09957d-d2cc-4f5a-9ddd-b97d9d772023
action              : allow-related
direction           : from-lport
external_ids        : {direction=Egress, gress-index="2", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:2:tcp", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=tcp}
label               : 0
log                 : false
match               : "inport == @a14645450421485494999 && ((ip4.dst == $a18396736153283155648)) && tcp && tcp.dst=={8991,8992}"
meter               : acl-logging
name                : "ANP:cluster-control:Egress:2"
options             : {apply-after-lb="true"}
priority            : 26598
severity            : []
tier                : 1

_uuid               : 1a68a5ed-e7f9-47d0-b55c-89184d97e81a
action              : allow-related
direction           : from-lport
external_ids        : {direction=Egress, gress-index="1", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:1:tcp", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=tcp}
label               : 0
log                 : false
match               : "inport == @a14645450421485494999 && ((ip4.dst == $a10706246167277696183)) && tcp && tcp.dst==6443"
meter               : acl-logging
name                : "ANP:cluster-control:Egress:1"
options             : {apply-after-lb="true"}
priority            : 26599
severity            : []
tier                : 1

_uuid               : aa1a224d-7960-4952-bdfb-35246bafbac8
action              : allow-related
direction           : to-lport
external_ids        : {direction=Ingress, gress-index="1", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Ingress:1:tcp", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=tcp}
label               : 0
log                 : false
match               : "outport == @a14645450421485494999 && ((ip4.src == $a6786643370959569281)) && tcp && tcp.dst==7564"
meter               : acl-logging
name                : "ANP:cluster-control:Ingress:1"
options             : {}
priority            : 26599
severity            : []
tier                : 1

_uuid               : 1a27d30e-3f96-4915-8ddd-ade7f22c117b
action              : allow-related
direction           : from-lport
external_ids        : {direction=Egress, gress-index="3", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:3:None", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=None}
label               : 0
log                 : false
match               : "inport == @a14645450421485494999 && ((ip4.dst == $a10622494091691694581))"
meter               : acl-logging
name                : "ANP:cluster-control:Egress:3"
options             : {apply-after-lb="true"}
priority            : 26597
severity            : []
tier                : 1

_uuid               : b23a087f-08f8-4225-8c27-4a9a9ee0c407
action              : allow-related
direction           : from-lport
external_ids        : {direction=Egress, gress-index="0", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:0:udp", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=udp}
label               : 0
log                 : false
match               : "inport == @a14645450421485494999 && ((ip4.dst == $a13517855690389298082)) && udp && udp.dst==5353"
meter               : acl-logging
name                : "ANP:cluster-control:Egress:0"
options             : {apply-after-lb="true"}
priority            : 26600
severity            : []
tier                : 1

_uuid               : d14ed5cf-2e06-496e-8cae-6b76d5dd5ccd
action              : allow-related
direction           : to-lport
external_ids        : {direction=Ingress, gress-index="0", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Ingress:0:None", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=None}
label               : 0
log                 : false
match               : "outport == @a14645450421485494999 && ((ip4.src == $a14545668191619617708))"
meter               : acl-logging
name                : "ANP:cluster-control:Ingress:0"
options             : {}
priority            : 26600
severity            : []
tier                : 1
    Copy to Clipboard Toggle word wrap
    Note

    The outputs for ingress and egress show you the logic of the policy in the ACL. For example, every time a packet matches the provided match the action is taken.

    1. Examine the specific ACL for the rule by running the following command: 

      $ ovn-nbctl find ACL 'external_ids{>=}{"k8s.ovn.org/owner-type"=AdminNetworkPolicy,direction=Ingress,"k8s.ovn.org/name"=cluster-control,gress-index="1"}'
      Copy to Clipboard Toggle word wrap
      Where, cluster-control
      Specifies the name of your ANP.
      Ingress
      Specifies the direction of traffic either of type Ingress or Egress.
      1
      Specifies the rule you want to look at.

      For the example ANP named cluster-control at priority 34, the following is an example output for Ingress rule 1:

      Example 2.15. Example output

      _uuid               : aa1a224d-7960-4952-bdfb-35246bafbac8
action              : allow-related
direction           : to-lport
external_ids        : {direction=Ingress, gress-index="1", "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Ingress:1:tcp", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy, port-policy-protocol=tcp}
label               : 0
log                 : false
match               : "outport == @a14645450421485494999 && ((ip4.src == $a6786643370959569281)) && tcp && tcp.dst==7564"
meter               : acl-logging
name                : "ANP:cluster-control:Ingress:1"
options             : {}
priority            : 26599
severity            : []
tier                : 1
      Copy to Clipboard Toggle word wrap

  4. Run the following command to look at address sets in the nbdb: 

    $ ovn-nbctl find Address_Set 'external_ids{>=}{"k8s.ovn.org/owner-type"=AdminNetworkPolicy,"k8s.ovn.org/name"=cluster-control}'
    Copy to Clipboard Toggle word wrap

    Example 2.16. Example outputs for Address_Set

    _uuid               : 56e89601-5552-4238-9fc3-8833f5494869
addresses           : ["192.168.194.135", "192.168.194.152", "192.168.194.193", "192.168.194.254"]
external_ids        : {direction=Egress, gress-index="1", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:1:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a10706246167277696183

_uuid               : 7df9330d-380b-4bdb-8acd-4eddeda2419c
addresses           : ["10.132.0.10", "10.132.0.11", "10.132.0.12", "10.132.0.13", "10.132.0.14", "10.132.0.15", "10.132.0.16", "10.132.0.17", "10.132.0.5", "10.132.0.7", "10.132.0.71", "10.132.0.75", "10.132.0.8", "10.132.0.81", "10.132.0.9", "10.132.2.10", "10.132.2.11", "10.132.2.12", "10.132.2.14", "10.132.2.15", "10.132.2.3", "10.132.2.4", "10.132.2.5", "10.132.2.6", "10.132.2.7", "10.132.2.8", "10.132.2.9", "10.132.3.64", "10.132.3.65", "10.132.3.72", "10.132.3.73", "10.132.3.76", "10.133.0.10", "10.133.0.11", "10.133.0.12", "10.133.0.13", "10.133.0.14", "10.133.0.15", "10.133.0.16", "10.133.0.17", "10.133.0.18", "10.133.0.19", "10.133.0.20", "10.133.0.21", "10.133.0.22", "10.133.0.23", "10.133.0.24", "10.133.0.25", "10.133.0.26", "10.133.0.27", "10.133.0.28", "10.133.0.29", "10.133.0.30", "10.133.0.31", "10.133.0.32", "10.133.0.33", "10.133.0.34", "10.133.0.35", "10.133.0.36", "10.133.0.37", "10.133.0.38", "10.133.0.39", "10.133.0.40", "10.133.0.41", "10.133.0.42", "10.133.0.44", "10.133.0.45", "10.133.0.46", "10.133.0.47", "10.133.0.48", "10.133.0.5", "10.133.0.6", "10.133.0.7", "10.133.0.8", "10.133.0.9", "10.134.0.10", "10.134.0.11", "10.134.0.12", "10.134.0.13", "10.134.0.14", "10.134.0.15", "10.134.0.16", "10.134.0.17", "10.134.0.18", "10.134.0.19", "10.134.0.20", "10.134.0.21", "10.134.0.22", "10.134.0.23", "10.134.0.24", "10.134.0.25", "10.134.0.26", "10.134.0.27", "10.134.0.28", "10.134.0.30", "10.134.0.31", "10.134.0.32", "10.134.0.33", "10.134.0.34", "10.134.0.35", "10.134.0.36", "10.134.0.37", "10.134.0.38", "10.134.0.4", "10.134.0.42", "10.134.0.9", "10.135.0.10", "10.135.0.11", "10.135.0.12", "10.135.0.13", "10.135.0.14", "10.135.0.15", "10.135.0.16", "10.135.0.17", "10.135.0.18", "10.135.0.19", "10.135.0.23", "10.135.0.24", "10.135.0.26", "10.135.0.27", "10.135.0.29", "10.135.0.3", "10.135.0.4", "10.135.0.40", "10.135.0.41", "10.135.0.42", "10.135.0.43", "10.135.0.44", "10.135.0.5", "10.135.0.6", "10.135.0.7", "10.135.0.8", "10.135.0.9"]
external_ids        : {direction=Ingress, gress-index="4", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Ingress:4:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a13814616246365836720

_uuid               : 84d76f13-ad95-4c00-8329-a0b1d023c289
addresses           : ["10.132.3.76", "10.135.0.44"]
external_ids        : {direction=Egress, gress-index="4", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:4:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a5972452606168369118

_uuid               : 0c53e917-f7ee-4256-8f3a-9522c0481e52
addresses           : ["10.132.0.10", "10.132.0.11", "10.132.0.12", "10.132.0.13", "10.132.0.14", "10.132.0.15", "10.132.0.16", "10.132.0.17", "10.132.0.5", "10.132.0.7", "10.132.0.71", "10.132.0.75", "10.132.0.8", "10.132.0.81", "10.132.0.9", "10.132.2.10", "10.132.2.11", "10.132.2.12", "10.132.2.14", "10.132.2.15", "10.132.2.3", "10.132.2.4", "10.132.2.5", "10.132.2.6", "10.132.2.7", "10.132.2.8", "10.132.2.9", "10.132.3.64", "10.132.3.65", "10.132.3.72", "10.132.3.73", "10.132.3.76", "10.133.0.10", "10.133.0.11", "10.133.0.12", "10.133.0.13", "10.133.0.14", "10.133.0.15", "10.133.0.16", "10.133.0.17", "10.133.0.18", "10.133.0.19", "10.133.0.20", "10.133.0.21", "10.133.0.22", "10.133.0.23", "10.133.0.24", "10.133.0.25", "10.133.0.26", "10.133.0.27", "10.133.0.28", "10.133.0.29", "10.133.0.30", "10.133.0.31", "10.133.0.32", "10.133.0.33", "10.133.0.34", "10.133.0.35", "10.133.0.36", "10.133.0.37", "10.133.0.38", "10.133.0.39", "10.133.0.40", "10.133.0.41", "10.133.0.42", "10.133.0.44", "10.133.0.45", "10.133.0.46", "10.133.0.47", "10.133.0.48", "10.133.0.5", "10.133.0.6", "10.133.0.7", "10.133.0.8", "10.133.0.9", "10.134.0.10", "10.134.0.11", "10.134.0.12", "10.134.0.13", "10.134.0.14", "10.134.0.15", "10.134.0.16", "10.134.0.17", "10.134.0.18", "10.134.0.19", "10.134.0.20", "10.134.0.21", "10.134.0.22", "10.134.0.23", "10.134.0.24", "10.134.0.25", "10.134.0.26", "10.134.0.27", "10.134.0.28", "10.134.0.30", "10.134.0.31", "10.134.0.32", "10.134.0.33", "10.134.0.34", "10.134.0.35", "10.134.0.36", "10.134.0.37", "10.134.0.38", "10.134.0.4", "10.134.0.42", "10.134.0.9", "10.135.0.10", "10.135.0.11", "10.135.0.12", "10.135.0.13", "10.135.0.14", "10.135.0.15", "10.135.0.16", "10.135.0.17", "10.135.0.18", "10.135.0.19", "10.135.0.23", "10.135.0.24", "10.135.0.26", "10.135.0.27", "10.135.0.29", "10.135.0.3", "10.135.0.4", "10.135.0.40", "10.135.0.41", "10.135.0.42", "10.135.0.43", "10.135.0.44", "10.135.0.5", "10.135.0.6", "10.135.0.7", "10.135.0.8", "10.135.0.9"]
external_ids        : {direction=Egress, gress-index="2", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:2:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a18396736153283155648

_uuid               : 5228bf1b-dfd8-40ec-bfa8-95c5bf9aded9
addresses           : []
external_ids        : {direction=Ingress, gress-index="0", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Ingress:0:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a14545668191619617708

_uuid               : 46530d69-70da-4558-8c63-884ec9dc4f25
addresses           : ["10.132.2.10", "10.132.2.5", "10.132.2.6", "10.132.2.7", "10.132.2.8", "10.132.2.9", "10.133.0.47", "10.134.0.33", "10.135.0.10", "10.135.0.11", "10.135.0.12", "10.135.0.19", "10.135.0.24", "10.135.0.7", "10.135.0.8", "10.135.0.9"]
external_ids        : {direction=Ingress, gress-index="1", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Ingress:1:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a6786643370959569281

_uuid               : 65fdcdea-0b9f-4318-9884-1b51d231ad1d
addresses           : ["10.132.3.72", "10.135.0.42"]
external_ids        : {direction=Ingress, gress-index="2", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Ingress:2:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a13730899355151937870

_uuid               : 73eabdb0-36bf-4ca3-b66d-156ac710df4c
addresses           : ["10.0.32.0/19", "10.0.56.38/32", "10.0.69.0/24", "10.132.3.72", "10.135.0.42", "172.29.0.0/30", "192.168.194.103", "192.168.194.2"]
external_ids        : {direction=Egress, gress-index="3", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:3:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a10622494091691694581

_uuid               : 50cdbef2-71b5-474b-914c-6fcd1d7712d3
addresses           : ["10.132.0.10", "10.132.0.11", "10.132.0.12", "10.132.0.13", "10.132.0.14", "10.132.0.15", "10.132.0.16", "10.132.0.17", "10.132.0.5", "10.132.0.7", "10.132.0.71", "10.132.0.75", "10.132.0.8", "10.132.0.81", "10.132.0.9", "10.132.2.10", "10.132.2.11", "10.132.2.12", "10.132.2.14", "10.132.2.15", "10.132.2.3", "10.132.2.4", "10.132.2.5", "10.132.2.6", "10.132.2.7", "10.132.2.8", "10.132.2.9", "10.132.3.64", "10.132.3.65", "10.132.3.72", "10.132.3.73", "10.132.3.76", "10.133.0.10", "10.133.0.11", "10.133.0.12", "10.133.0.13", "10.133.0.14", "10.133.0.15", "10.133.0.16", "10.133.0.17", "10.133.0.18", "10.133.0.19", "10.133.0.20", "10.133.0.21", "10.133.0.22", "10.133.0.23", "10.133.0.24", "10.133.0.25", "10.133.0.26", "10.133.0.27", "10.133.0.28", "10.133.0.29", "10.133.0.30", "10.133.0.31", "10.133.0.32", "10.133.0.33", "10.133.0.34", "10.133.0.35", "10.133.0.36", "10.133.0.37", "10.133.0.38", "10.133.0.39", "10.133.0.40", "10.133.0.41", "10.133.0.42", "10.133.0.44", "10.133.0.45", "10.133.0.46", "10.133.0.47", "10.133.0.48", "10.133.0.5", "10.133.0.6", "10.133.0.7", "10.133.0.8", "10.133.0.9", "10.134.0.10", "10.134.0.11", "10.134.0.12", "10.134.0.13", "10.134.0.14", "10.134.0.15", "10.134.0.16", "10.134.0.17", "10.134.0.18", "10.134.0.19", "10.134.0.20", "10.134.0.21", "10.134.0.22", "10.134.0.23", "10.134.0.24", "10.134.0.25", "10.134.0.26", "10.134.0.27", "10.134.0.28", "10.134.0.30", "10.134.0.31", "10.134.0.32", "10.134.0.33", "10.134.0.34", "10.134.0.35", "10.134.0.36", "10.134.0.37", "10.134.0.38", "10.134.0.4", "10.134.0.42", "10.134.0.9", "10.135.0.10", "10.135.0.11", "10.135.0.12", "10.135.0.13", "10.135.0.14", "10.135.0.15", "10.135.0.16", "10.135.0.17", "10.135.0.18", "10.135.0.19", "10.135.0.23", "10.135.0.24", "10.135.0.26", "10.135.0.27", "10.135.0.29", "10.135.0.3", "10.135.0.4", "10.135.0.40", "10.135.0.41", "10.135.0.42", "10.135.0.43", "10.135.0.44", "10.135.0.5", "10.135.0.6", "10.135.0.7", "10.135.0.8", "10.135.0.9"]
external_ids        : {direction=Egress, gress-index="0", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:0:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a13517855690389298082

_uuid               : 32a42f32-2d11-43dd-979d-a56d7ee6aa57
addresses           : ["10.132.3.76", "10.135.0.44"]
external_ids        : {direction=Ingress, gress-index="3", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Ingress:3:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a764182844364804195

_uuid               : 8fd3b977-6e1c-47aa-82b7-e3e3136c4a72
addresses           : ["0.0.0.0/0"]
external_ids        : {direction=Egress, gress-index="5", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:5:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a11452480169090787059
    Copy to Clipboard Toggle word wrap

    1. Examine the specific address set of the rule by running the following command: 

      $ ovn-nbctl find Address_Set 'external_ids{>=}{"k8s.ovn.org/owner-type"=AdminNetworkPolicy,direction=Egress,"k8s.ovn.org/name"=cluster-control,gress-index="5"}'
      Copy to Clipboard Toggle word wrap

      Example 2.17. Example outputs for Address_Set

      _uuid               : 8fd3b977-6e1c-47aa-82b7-e3e3136c4a72
addresses           : ["0.0.0.0/0"]
external_ids        : {direction=Egress, gress-index="5", ip-family=v4, "k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control:Egress:5:v4", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a11452480169090787059
      Copy to Clipboard Toggle word wrap

  5. Run the following command to look at the port groups in the nbdb: 

    $ ovn-nbctl find Port_Group 'external_ids{>=}{"k8s.ovn.org/owner-type"=AdminNetworkPolicy,"k8s.ovn.org/name"=cluster-control}'
    Copy to Clipboard Toggle word wrap

    Example 2.18. Example outputs for Port_Group

    _uuid               : f50acf71-7488-4b9a-b7b8-c8a024e99d21
acls                : [04f20275-c410-405c-a923-0e677f767889, 0d5e4722-b608-4bb1-b625-23c323cc9926, 1a27d30e-3f96-4915-8ddd-ade7f22c117b, 1a68a5ed-e7f9-47d0-b55c-89184d97e81a, 4b5d836a-e0a3-4088-825e-f9f0ca58e538, 5a6e5bb4-36eb-4209-b8bc-c611983d4624, 5d09957d-d2cc-4f5a-9ddd-b97d9d772023, aa1a224d-7960-4952-bdfb-35246bafbac8, b23a087f-08f8-4225-8c27-4a9a9ee0c407, b7be6472-df67-439c-8c9c-f55929f0a6e0, d14ed5cf-2e06-496e-8cae-6b76d5dd5ccd]
external_ids        : {"k8s.ovn.org/id"="default-network-controller:AdminNetworkPolicy:cluster-control", "k8s.ovn.org/name"=cluster-control, "k8s.ovn.org/owner-controller"=default-network-controller, "k8s.ovn.org/owner-type"=AdminNetworkPolicy}
name                : a14645450421485494999
ports               : [5e75f289-8273-4f8a-8798-8c10f7318833, de7e1b71-6184-445d-93e7-b20acadf41ea]
    Copy to Clipboard Toggle word wrap
Torna in cima
Red Hat logoGithubredditYoutubeTwitter

Formazione

Prova, acquista e vendi

Community

Informazioni sulla documentazione di Red Hat

Aiutiamo gli utenti Red Hat a innovarsi e raggiungere i propri obiettivi con i nostri prodotti e servizi grazie a contenuti di cui possono fidarsi. Esplora i nostri ultimi aggiornamenti.

Rendiamo l’open source più inclusivo

Red Hat si impegna a sostituire il linguaggio problematico nel codice, nella documentazione e nelle proprietà web. Per maggiori dettagli, visita il Blog di Red Hat.

Informazioni su Red Hat

Forniamo soluzioni consolidate che rendono più semplice per le aziende lavorare su piattaforme e ambienti diversi, dal datacenter centrale all'edge della rete.

Theme

© 2025 Red Hat