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Ruleset Engine
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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 --request PUT \
https://api.cloudflare.com/client/v4/zones/{zone_id}/rulesets/phases/http_request_firewall_managed/entrypoint \
--header "Authorization: Bearer <API_TOKEN>" \
--header "Content-Type: application/json" \
--data '{
"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 --request PUT \
https://api.cloudflare.com/client/v4/accounts/{account_id}/rulesets/phases/http_request_firewall_managed/entrypoint \
--header "Authorization: Bearer <API_TOKEN>" \
--header "Content-Type: application/json" \
--data '{
"rules": [
{
"action": "execute",
"expression": "cf.zone.name eq \"example.com\" and cf.zone.plan eq \"ENT\"",
"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
}
]
}
}
}
]
}'