diff --git a/include/crm/common/actions.h b/include/crm/common/actions.h index c94f84b121..348d9ed832 100644 --- a/include/crm/common/actions.h +++ b/include/crm/common/actions.h @@ -1,435 +1,408 @@ /* * Copyright 2004-2024 the Pacemaker project contributors * * The version control history for this file may have further details. * * This source code is licensed under the GNU Lesser General Public License * version 2.1 or later (LGPLv2.1+) WITHOUT ANY WARRANTY. */ #ifndef PCMK__CRM_COMMON_ACTIONS__H #define PCMK__CRM_COMMON_ACTIONS__H #include // bool #include // strcasecmp() #include // gboolean, guint #include // xmlNode #include // lrmd_event_data_t #include // GList, GHashTable #include // xmlNode #include #include // enum rsc_start_requirement, etc. #include // pcmk_resource_t, pcmk_node_t #ifdef __cplusplus extern "C" { #endif /*! * \file * \brief APIs related to actions * \ingroup core */ //! Default timeout (in milliseconds) for non-metadata actions #define PCMK_DEFAULT_ACTION_TIMEOUT_MS 20000 // @COMPAT We don't need a separate timeout for metadata, much less a longer one //! \deprecated Default timeout (in milliseconds) for metadata actions #define PCMK_DEFAULT_METADATA_TIMEOUT_MS 30000 // Action names as strings #define PCMK_ACTION_CANCEL "cancel" #define PCMK_ACTION_CLEAR_FAILCOUNT "clear_failcount" #define PCMK_ACTION_CLONE_ONE_OR_MORE "clone-one-or-more" #define PCMK_ACTION_DELETE "delete" #define PCMK_ACTION_DEMOTE "demote" #define PCMK_ACTION_DEMOTED "demoted" #define PCMK_ACTION_DO_SHUTDOWN "do_shutdown" #define PCMK_ACTION_LIST "list" #define PCMK_ACTION_LRM_DELETE "lrm_delete" #define PCMK_ACTION_LOAD_STOPPED "load_stopped" #define PCMK_ACTION_MAINTENANCE_NODES "maintenance_nodes" #define PCMK_ACTION_META_DATA "meta-data" #define PCMK_ACTION_METADATA "metadata" #define PCMK_ACTION_MIGRATE_FROM "migrate_from" #define PCMK_ACTION_MIGRATE_TO "migrate_to" #define PCMK_ACTION_MONITOR "monitor" #define PCMK_ACTION_NOTIFIED "notified" #define PCMK_ACTION_NOTIFY "notify" #define PCMK_ACTION_OFF "off" #define PCMK_ACTION_ON "on" #define PCMK_ACTION_ONE_OR_MORE "one-or-more" #define PCMK_ACTION_PROMOTE "promote" #define PCMK_ACTION_PROMOTED "promoted" #define PCMK_ACTION_REBOOT "reboot" #define PCMK_ACTION_RELOAD "reload" #define PCMK_ACTION_RELOAD_AGENT "reload-agent" #define PCMK_ACTION_RUNNING "running" #define PCMK_ACTION_START "start" #define PCMK_ACTION_STATUS "status" #define PCMK_ACTION_STONITH "stonith" #define PCMK_ACTION_STOP "stop" #define PCMK_ACTION_STOPPED "stopped" #define PCMK_ACTION_VALIDATE_ALL "validate-all" // Possible actions (including some pseudo-actions) // @COMPAT Make this internal when we can break API backward compatibility //!@{ //! \deprecated Do not use (public access will be removed in a future release) enum action_tasks { pcmk_action_unspecified = 0, // Unspecified or unknown action pcmk_action_monitor, // Monitor // Each "completed" action must be the regular action plus 1 pcmk_action_stop, // Stop pcmk_action_stopped, // Stop completed pcmk_action_start, // Start pcmk_action_started, // Start completed pcmk_action_notify, // Notify pcmk_action_notified, // Notify completed pcmk_action_promote, // Promote pcmk_action_promoted, // Promoted pcmk_action_demote, // Demote pcmk_action_demoted, // Demoted pcmk_action_shutdown, // Shut down node pcmk_action_fence, // Fence node #if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1) no_action = pcmk_action_unspecified, monitor_rsc = pcmk_action_monitor, stop_rsc = pcmk_action_stop, stopped_rsc = pcmk_action_stopped, start_rsc = pcmk_action_start, started_rsc = pcmk_action_started, action_notify = pcmk_action_notify, action_notified = pcmk_action_notified, action_promote = pcmk_action_promote, action_promoted = pcmk_action_promoted, action_demote = pcmk_action_demote, action_demoted = pcmk_action_demoted, shutdown_crm = pcmk_action_shutdown, stonith_node = pcmk_action_fence, #endif }; //!@} // Possible responses to a resource action failure // @COMPAT Make this internal when we can break API backward compatibility //!@{ //! \deprecated Do not use (public access will be removed in a future release) enum action_fail_response { /* The order is (partially) significant here; the values from * pcmk_on_fail_ignore through pcmk_on_fail_fence_node are in order of * increasing severity. * * @COMPAT The values should be ordered and numbered per the "TODO" comments * below, so all values are in order of severity and there is room for * future additions, but that would break API compatibility. * @TODO For now, we just use a function to compare the values specially, but * at the next compatibility break, we should arrange things * properly so we can compare with less than and greater than. */ // @TODO Define as 10 pcmk_on_fail_ignore = 0, // Act as if failure didn't happen // @TODO Define as 30 pcmk_on_fail_restart = 1, // Restart resource // @TODO Define as 60 pcmk_on_fail_ban = 2, // Ban resource from current node // @TODO Define as 70 pcmk_on_fail_block = 3, // Treat resource as unmanaged // @TODO Define as 80 pcmk_on_fail_stop = 4, // Stop resource and leave stopped // @TODO Define as 90 pcmk_on_fail_standby_node = 5, // Put resource's node in standby // @TODO Define as 100 pcmk_on_fail_fence_node = 6, // Fence resource's node // @COMPAT Values below here are out of desired order for API compatibility // @TODO Define as 50 pcmk_on_fail_restart_container = 7, // Restart resource's container // @TODO Define as 40 /* * Fence the remote node created by the resource if fencing is enabled, * otherwise attempt to restart the resource (used internally for some * remote connection failures). */ pcmk_on_fail_reset_remote = 8, // @TODO Define as 20 pcmk_on_fail_demote = 9, // Demote if promotable, else stop #if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1) action_fail_ignore = pcmk_on_fail_ignore, action_fail_recover = pcmk_on_fail_restart, action_fail_migrate = pcmk_on_fail_ban, action_fail_block = pcmk_on_fail_block, action_fail_stop = pcmk_on_fail_stop, action_fail_standby = pcmk_on_fail_standby_node, action_fail_fence = pcmk_on_fail_fence_node, action_fail_restart_container = pcmk_on_fail_restart_container, action_fail_reset_remote = pcmk_on_fail_reset_remote, action_fail_demote = pcmk_on_fail_demote, #endif }; //!@} -//! Action scheduling flags +// Action scheduling flags +// @COMPAT Make this internal when we can break API backward compatibility +//!@{ +//! \deprecated Do not use (public access will be removed in a future release) enum pe_action_flags { - //! No action flags set (compare with equality rather than bit set) + // No action flags set (compare with equality rather than bit set) pcmk_no_action_flags = 0, - //! Whether action does not require invoking an agent + // Whether action does not require invoking an agent pcmk_action_pseudo = (1 << 0), - //! Whether action is runnable + // Whether action is runnable pcmk_action_runnable = (1 << 1), - //! Whether action should not be executed + // Whether action should not be executed pcmk_action_optional = (1 << 2), - //! Whether action should be added to transition graph even if optional + // Whether action should be added to transition graph even if optional pcmk_action_always_in_graph = (1 << 3), - //! Whether operation-specific instance attributes have been unpacked yet + // Whether operation-specific instance attributes have been unpacked yet pcmk_action_attrs_evaluated = (1 << 4), - //! Whether action is allowed to be part of a live migration + // Whether action is allowed to be part of a live migration pcmk_action_migratable = (1 << 7), - //! Whether action has been added to transition graph + // Whether action has been added to transition graph pcmk_action_added_to_graph = (1 << 8), - //! Whether action is a stop to abort a dangling migration + // Whether action is a stop to abort a dangling migration pcmk_action_migration_abort = (1 << 11), - /*! + /* * Whether action is an ordering point for minimum required instances * (used to implement ordering after clones with \c PCMK_META_CLONE_MIN * configured, and ordered sets with \c PCMK_XA_REQUIRE_ALL set to * \c PCMK_VALUE_FALSE). */ pcmk_action_min_runnable = (1 << 12), - //! Whether action is recurring monitor that must be rescheduled if active + // Whether action is recurring monitor that must be rescheduled if active pcmk_action_reschedule = (1 << 13), - //! Whether action has already been processed by a recursive procedure + // Whether action has already been processed by a recursive procedure pcmk_action_detect_loop = (1 << 14), - //! Whether action's inputs have been de-duplicated yet + // Whether action's inputs have been de-duplicated yet pcmk_action_inputs_deduplicated = (1 << 15), - //! Whether action can be executed on DC rather than own node + // Whether action can be executed on DC rather than own node pcmk_action_on_dc = (1 << 16), #if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1) - //! \deprecated Use pcmk_action_pseudo instead pe_action_pseudo = pcmk_action_pseudo, - - //! \deprecated Use pcmk_action_runnable instead pe_action_runnable = pcmk_action_runnable, - - //! \deprecated Use pcmk_action_optional instead pe_action_optional = pcmk_action_optional, - - //! \deprecated Use pcmk_action_always_in_graph instead pe_action_print_always = pcmk_action_always_in_graph, - - //! \deprecated Use pcmk_action_attrs_evaluated instead pe_action_have_node_attrs = pcmk_action_attrs_evaluated, - - //! \deprecated Do not use pe_action_implied_by_stonith = (1 << 6), - - //! \deprecated Use pcmk_action_migratable instead pe_action_migrate_runnable = pcmk_action_migratable, - - //! \deprecated Use pcmk_action_added_to_graph instead pe_action_dumped = pcmk_action_added_to_graph, - - //! \deprecated Do not use pe_action_processed = (1 << 9), - - //! \deprecated Do not use pe_action_clear = (1 << 10), - - //! \deprecated Use pcmk_action_migration_abort instead pe_action_dangle = pcmk_action_migration_abort, - - //! \deprecated Use pcmk_action_min_runnable instead pe_action_requires_any = pcmk_action_min_runnable, - - //! \deprecated Use pcmk_action_reschedule instead pe_action_reschedule = pcmk_action_reschedule, - - //! \deprecated Use pcmk_action_detect_loop instead pe_action_tracking = pcmk_action_detect_loop, - - //! \deprecated Use pcmk_action_inputs_deduplicated instead pe_action_dedup = pcmk_action_inputs_deduplicated, - - //! \deprecated Use pcmk_action_on_dc instead pe_action_dc = pcmk_action_on_dc, #endif }; +//!@} /* @COMPAT enum pe_link_state and enum pe_ordering are currently needed for * struct pe_action_wrapper_s (which is public) but should be removed at an * API compatibility break when that can be refactored and made internal */ //!@{ //! \deprecated Do not use enum pe_link_state { pe_link_not_dumped = 0, pe_link_dumped = 1, #if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1) pe_link_dup = 2, #endif }; enum pe_ordering { pe_order_none = 0x0, #if !defined(PCMK_ALLOW_DEPRECATED) || (PCMK_ALLOW_DEPRECATED == 1) pe_order_optional = 0x1, pe_order_apply_first_non_migratable = 0x2, pe_order_implies_first = 0x10, pe_order_implies_then = 0x20, pe_order_promoted_implies_first = 0x40, pe_order_implies_first_migratable = 0x80, pe_order_runnable_left = 0x100, pe_order_pseudo_left = 0x200, pe_order_implies_then_on_node = 0x400, pe_order_probe = 0x800, pe_order_restart = 0x1000, pe_order_stonith_stop = 0x2000, pe_order_serialize_only = 0x4000, pe_order_same_node = 0x8000, pe_order_implies_first_printed = 0x10000, pe_order_implies_then_printed = 0x20000, pe_order_asymmetrical = 0x100000, pe_order_load = 0x200000, pe_order_one_or_more = 0x400000, pe_order_anti_colocation = 0x800000, pe_order_preserve = 0x1000000, pe_order_then_cancels_first = 0x2000000, pe_order_trace = 0x4000000, pe_order_implies_first_master = pe_order_promoted_implies_first, #endif }; // Action sequenced relative to another action // @COMPAT This should be internal struct pe_action_wrapper_s { // @COMPAT This should be uint32_t enum pe_ordering type; // Group of enum pcmk__action_relation_flags // @COMPAT This should be a bool enum pe_link_state state; // Whether action has been added to graph yet pcmk_action_t *action; // Action to be sequenced }; //!@} //! Implementation of pcmk_action_t struct pe_action_s { int id; //!< Counter to identify action /*! * When the controller aborts a transition graph, it sets an abort priority. * If this priority is higher, the action will still be executed anyway. * Pseudo-actions are always allowed, so this is irrelevant for them. */ int priority; pcmk_resource_t *rsc; //!< Resource to apply action to, if any pcmk_node_t *node; //!< Node to execute action on, if any xmlNode *op_entry; //!< Action XML configuration, if any char *task; //!< Action name char *uuid; //!< Action key char *cancel_task; //!< If task is "cancel", the action being cancelled char *reason; //!< Readable description of why action is needed //@ COMPAT Change to uint32_t at a compatibility break enum pe_action_flags flags; //!< Group of enum pe_action_flags enum rsc_start_requirement needs; //!< Prerequisite for recovery enum action_fail_response on_fail; //!< Response to failure enum rsc_role_e fail_role; //!< Resource role if action fails GHashTable *meta; //!< Meta-attributes relevant to action GHashTable *extra; //!< Action-specific instance attributes /* Current count of runnable instance actions for "first" action in an * ordering dependency with pcmk__ar_min_runnable set. */ int runnable_before; //!< For Pacemaker use only /*! * Number of instance actions for "first" action in an ordering dependency * with pcmk__ar_min_runnable set that must be runnable before this action * can be runnable. */ int required_runnable_before; // Actions in a relation with this one (as pcmk__related_action_t *) GList *actions_before; //!< For Pacemaker use only GList *actions_after; //!< For Pacemaker use only /* This is intended to hold data that varies by the type of action, but is * not currently used. Some of the above fields could be moved here except * for API backward compatibility. */ void *action_details; //!< For Pacemaker use only }; const char *pcmk_action_text(enum action_tasks action); enum action_tasks pcmk_parse_action(const char *action_name); const char *pcmk_on_fail_text(enum action_fail_response on_fail); // For parsing various action-related string specifications gboolean parse_op_key(const char *key, char **rsc_id, char **op_type, guint *interval_ms); gboolean decode_transition_key(const char *key, char **uuid, int *transition_id, int *action_id, int *target_rc); gboolean decode_transition_magic(const char *magic, char **uuid, int *transition_id, int *action_id, int *op_status, int *op_rc, int *target_rc); // @COMPAT Either these shouldn't be in libcrmcommon or lrmd_event_data_t should int rsc_op_expected_rc(const lrmd_event_data_t *event); gboolean did_rsc_op_fail(lrmd_event_data_t *event, int target_rc); bool crm_op_needs_metadata(const char *rsc_class, const char *op); xmlNode *crm_create_op_xml(xmlNode *parent, const char *prefix, const char *task, const char *interval_spec, const char *timeout); bool pcmk_is_probe(const char *task, guint interval); bool pcmk_xe_is_probe(const xmlNode *xml_op); bool pcmk_xe_mask_probe_failure(const xmlNode *xml_op); #ifdef __cplusplus } #endif #endif // PCMK__CRM_COMMON_ACTIONS__H