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Version: 3.18 (latest)

calicoq policy

calicoq policy <policy-name> shows the endpoints that are relevant to the named policy, comprising:

  • the endpoints that the policy applies to (for which ingress or egress traffic is policed according to the rules in that policy)

  • the endpoints that match the policy's rule selectors (that are allowed or disallowed as data sources or destinations).

(For example, if you have a database and a webserver, you might have a policy that says policy selector: role=='db'; rule: allow from role == 'webserver'.

Then the "policy applies to" selector is role == 'db' and the "policy's rule selector" is role == 'webserver'.)

It shows output that is equivalent to running calicoq eval <selector> for the policy's spec.selector and for any selector or notSelector expressions in the source or destination of the policy's rules.

Options​

-r --hide-rule-matches         Don't show the list of endpoints that match the
                               policy's rules as allowed or disallowed sources or
                               destinations.

-s --hide-selectors            Don't show the detailed selector expressions involved
                               (that cause the policy to apply to or match various
                               endpoints).

-o <OUTPUT> --output=<OUTPUT>  Set the output format. Should be one of yaml, json, or
                               ps. If nothing is set, defaults to ps.

Examples​

In this example there are three endpoints in one namespace "namespace1". Policy "policy1" applies to all of the endpoints in the namespace, and its rules reference them as possible (allowed or denied) sources or destinations:

calicoq policy namespace1/policy1

Sample output follows.

Policy "namespace1/policy1" applies to these endpoints:
  Workload endpoint host1/k8s/namespace1.ns1wep1/eth0; selector "(projectcalico.org/namespace == 'namespace1') && projectcalico.org/namespace == 'namespace1'"
  Workload endpoint host1/k8s/namespace1.ns1wep2/eth0; selector "(projectcalico.org/namespace == 'namespace1') && projectcalico.org/namespace == 'namespace1'"
  Workload endpoint host1/k8s/namespace1.ns1wep3/eth0; selector "(projectcalico.org/namespace == 'namespace1') && projectcalico.org/namespace == 'namespace1'"

Endpoints matching Policy "namespace1/policy1" rules:
  Workload endpoint host1/k8s/namespace1.ns1wep1/eth0
    outbound rule 1 destination match; selector "(projectcalico.org/namespace == 'namespace1') && (projectcalico.org/namespace == 'namespace1')"
  Workload endpoint host1/k8s/namespace1.ns1wep2/eth0
    outbound rule 1 destination match; selector "(projectcalico.org/namespace == 'namespace1') && (projectcalico.org/namespace == 'namespace1')"
  Workload endpoint host1/k8s/namespace1.ns1wep3/eth0
    outbound rule 1 destination match; selector "(projectcalico.org/namespace == 'namespace1') && (projectcalico.org/namespace == 'namespace1')"

You can simplify that output by specifying --hide-selectors:

calicoq policy namespace1/policy1 --hide-selectors

Sample output follows.

Policy "namespace1/policy1" applies to these endpoints:
  Workload endpoint host1/k8s/namespace1.ns1wep1/eth0
  Workload endpoint host1/k8s/namespace1.ns1wep2/eth0
  Workload endpoint host1/k8s/namespace1.ns1wep3/eth0

Endpoints matching Policy "namespace1/policy1" rules:
  Workload endpoint host1/k8s/namespace1.ns1wep1/eth0
    outbound rule 1 destination match
  Workload endpoint host1/k8s/namespace1.ns1wep2/eth0
    outbound rule 1 destination match
  Workload endpoint host1/k8s/namespace1.ns1wep3/eth0
    outbound rule 1 destination match

If you only wanted to know the endpoints whose ingress or egress traffic is policed according to that policy, you could simplify the output further by adding --hide-rule-matches:

calicoq policy namespace1/policy1 --hide-rule-matches --hide-selectors

Sample output follows.

Policy "namespace1/policy1" applies to these endpoints:
  Workload endpoint host1/k8s/namespace1.ns1wep1/eth0
  Workload endpoint host1/k8s/namespace1.ns1wep2/eth0
  Workload endpoint host1/k8s/namespace1.ns1wep3/eth0

See also​