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Use rulesets and rule overrides to only enable selected rules

Use a ruleset override and a rule override in a phase entry point ruleset to execute only selected rules in a Managed Ruleset.

  1. Add a rule to a phase entry point ruleset that executes a Managed Ruleset.
  2. Configure a ruleset override that disables all rules in the Managed Ruleset.
  3. Configure a rule override to set an action for the rules you want to execute.
Example: Configure ruleset and rule overrides at the zone level

The following PUT request uses the Update ruleset operation at the zone level to execute only two rules from a Managed Ruleset in the http_request_firewall_managed phase.

In this example:

  • "id": "{managed-ruleset-id}" adds a rule to the phase entry point ruleset to execute a Managed Ruleset for requests in the specified zone ({zone-id}).
  • "enabled": false defines an override at the ruleset level to disable all rules in the Managed Ruleset.
  • "rules": [{"id": "{rule-id-1}", "action": "block", "enabled": true}, {"id": "{rule-id-2}", "action": "log", "enabled": true}] defines a list of overrides at the rule level to enable two individual rules.
curl -X PUT \
-H "X-Auth-Email: user@cloudflare.com" \
-H "X-Auth-Key: REDACTED" \
"https://api.cloudflare.com/client/v4/zones/{zone-id}/rulesets/phases/http_request_firewall_managed/entrypoint" \
-d '{
"rules": [
{
"action": "execute",
"expression": "true",
"action_parameters": {
"id": "{managed-ruleset-id}",
"overrides": {
"enabled": false,
"rules": [
{
"id": "{rule-id-1}",
"action": "block",
"enabled": true
},
{
"id": "{rule-id-2}",
"action": "log",
"enabled": true
}
]
}
}
}
]
}'
Example: Configure ruleset and rule overrides at the account level

The following PUT request uses the Update ruleset operation at the account level to execute only two rules from a Managed Ruleset in the http_request_firewall_managed phase.

In this example:

  • "id": "{managed-ruleset-id}" adds a rule to the phase entry point ruleset to execute a Managed Ruleset for requests addressed to example.com.
  • "enabled": false defines an override at the ruleset level to disable all rules in the Managed Ruleset.
  • "rules": [{"id": "{rule-id-1}", "action": "block", "enabled": true}, {"id": "{rule-id-2}", "action": "log", "enabled": true}] defines a list of overrides at the rule level to enable two individual rules.
curl -X PUT \
-H "X-Auth-Email: user@cloudflare.com" \
-H "X-Auth-Key: REDACTED" \
"https://api.cloudflare.com/client/v4/accounts/{account-id}/rulesets/phases/http_request_firewall_managed/entrypoint" \
-d '{
"rules": [
{
"action": "execute",
"expression": "cf.zone.name eq \"example.com\"",
"action_parameters": {
"id": "{managed-ruleset-id}",
"overrides": {
"enabled": false,
"rules": [
{
"id": "{rule-id-1}",
"action": "block",
"enabled": true
},
{
"id": "{rule-id-2}",
"action": "log",
"enabled": true
}
]
}
}
}
]
}'