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diff --git a/tools/crm_simulate.c b/tools/crm_simulate.c
index df5359cb4f..03969e709c 100644
--- a/tools/crm_simulate.c
+++ b/tools/crm_simulate.c
@@ -1,585 +1,636 @@
/*
* Copyright 2009-2024 the Pacemaker project contributors
*
* The version control history for this file may have further details.
*
* This source code is licensed under the GNU General Public License version 2
* or later (GPLv2+) WITHOUT ANY WARRANTY.
*/
#include <crm_internal.h>
#include <stdint.h>
#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <time.h>
#include <sys/stat.h>
#include <sys/param.h>
#include <sys/types.h>
#include <dirent.h>
#include <crm/crm.h>
#include <crm/cib.h>
#include <crm/cib/internal.h>
#include <crm/common/cmdline_internal.h>
#include <crm/common/output_internal.h>
#include <crm/common/output.h>
#include <crm/common/util.h>
#include <crm/common/iso8601.h>
#include <crm/pengine/status.h>
#include <crm/pengine/internal.h>
#include <pacemaker-internal.h>
#include <pacemaker.h>
#define SUMMARY "crm_simulate - simulate a Pacemaker cluster's response to events"
struct {
char *dot_file;
char *graph_file;
gchar *input_file;
pcmk_injections_t *injections;
unsigned int flags;
gchar *output_file;
long long repeat;
gboolean store;
gchar *test_dir;
char *use_date;
char *xml_file;
} options = {
.flags = pcmk_sim_show_pending | pcmk_sim_sanitized,
.repeat = 1
};
uint32_t section_opts = 0;
char *temp_shadow = NULL;
crm_exit_t exit_code = CRM_EX_OK;
#define INDENT " "
static pcmk__supported_format_t formats[] = {
PCMK__SUPPORTED_FORMAT_NONE,
PCMK__SUPPORTED_FORMAT_TEXT,
PCMK__SUPPORTED_FORMAT_XML,
{ NULL, NULL, NULL }
};
static gboolean
all_actions_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.flags |= pcmk_sim_all_actions;
return TRUE;
}
static gboolean
attrs_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
section_opts |= pcmk_section_attributes;
return TRUE;
}
static gboolean
failcounts_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
section_opts |= pcmk_section_failcounts | pcmk_section_failures;
return TRUE;
}
static gboolean
in_place_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.store = TRUE;
options.flags |= pcmk_sim_process | pcmk_sim_simulate;
return TRUE;
}
static gboolean
live_check_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
if (options.xml_file) {
free(options.xml_file);
}
options.xml_file = NULL;
options.flags &= ~pcmk_sim_sanitized;
return TRUE;
}
static gboolean
node_down_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.injections->node_down = g_list_append(options.injections->node_down, g_strdup(optarg));
return TRUE;
}
static gboolean
node_fail_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.injections->node_fail = g_list_append(options.injections->node_fail, g_strdup(optarg));
return TRUE;
}
static gboolean
node_up_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
pcmk__simulate_node_config = true;
options.injections->node_up = g_list_append(options.injections->node_up, g_strdup(optarg));
return TRUE;
}
static gboolean
op_fail_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.flags |= pcmk_sim_process | pcmk_sim_simulate;
options.injections->op_fail = g_list_append(options.injections->op_fail, g_strdup(optarg));
return TRUE;
}
static gboolean
op_inject_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.injections->op_inject = g_list_append(options.injections->op_inject, g_strdup(optarg));
return TRUE;
}
static gboolean
pending_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.flags |= pcmk_sim_show_pending;
return TRUE;
}
static gboolean
process_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.flags |= pcmk_sim_process;
return TRUE;
}
static gboolean
quorum_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
pcmk__str_update(&options.injections->quorum, optarg);
return TRUE;
}
static gboolean
save_dotfile_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.flags |= pcmk_sim_process;
pcmk__str_update(&options.dot_file, optarg);
return TRUE;
}
static gboolean
save_graph_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.flags |= pcmk_sim_process;
pcmk__str_update(&options.graph_file, optarg);
return TRUE;
}
static gboolean
show_scores_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.flags |= pcmk_sim_process | pcmk_sim_show_scores;
return TRUE;
}
static gboolean
simulate_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.flags |= pcmk_sim_process | pcmk_sim_simulate;
return TRUE;
}
static gboolean
ticket_activate_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.injections->ticket_activate = g_list_append(options.injections->ticket_activate, g_strdup(optarg));
return TRUE;
}
static gboolean
ticket_grant_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.injections->ticket_grant = g_list_append(options.injections->ticket_grant, g_strdup(optarg));
return TRUE;
}
static gboolean
ticket_revoke_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.injections->ticket_revoke = g_list_append(options.injections->ticket_revoke, g_strdup(optarg));
return TRUE;
}
static gboolean
ticket_standby_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.injections->ticket_standby = g_list_append(options.injections->ticket_standby, g_strdup(optarg));
return TRUE;
}
static gboolean
utilization_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
options.flags |= pcmk_sim_process | pcmk_sim_show_utilization;
return TRUE;
}
static gboolean
watchdog_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
pcmk__str_update(&options.injections->watchdog, optarg);
return TRUE;
}
static gboolean
xml_file_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
pcmk__str_update(&options.xml_file, optarg);
options.flags |= pcmk_sim_sanitized;
return TRUE;
}
static gboolean
xml_pipe_cb(const gchar *option_name, const gchar *optarg, gpointer data, GError **error) {
pcmk__str_update(&options.xml_file, "-");
options.flags |= pcmk_sim_sanitized;
return TRUE;
}
static GOptionEntry operation_entries[] = {
{ "run", 'R', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, process_cb,
"Process the supplied input and show what actions the cluster will take in response",
NULL },
{ "simulate", 'S', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, simulate_cb,
"Like --run, but also simulate taking those actions and show the resulting new status",
NULL },
{ "in-place", 'X', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, in_place_cb,
"Like --simulate, but also store the results back to the input file",
NULL },
{ "show-attrs", 'A', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, attrs_cb,
"Show node attributes",
NULL },
{ "show-failcounts", 'c', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, failcounts_cb,
"Show resource fail counts",
NULL },
{ "show-scores", 's', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, show_scores_cb,
"Show allocation scores",
NULL },
{ "show-utilization", 'U', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, utilization_cb,
"Show utilization information",
NULL },
{ "profile", 'P', 0, G_OPTION_ARG_FILENAME, &options.test_dir,
"Process all the XML files in the named directory to create profiling data",
"DIR" },
{ "repeat", 'N', 0, G_OPTION_ARG_INT, &options.repeat,
"With --profile, repeat each test N times and print timings",
"N" },
/* Deprecated */
{ "pending", 'j', G_OPTION_FLAG_NO_ARG|G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_CALLBACK, pending_cb,
"Display pending state if '" PCMK_META_RECORD_PENDING "' is enabled",
NULL },
{ NULL }
};
static GOptionEntry synthetic_entries[] = {
{ "node-up", 'u', 0, G_OPTION_ARG_CALLBACK, node_up_cb,
"Simulate bringing a node online",
"NODE" },
{ "node-down", 'd', 0, G_OPTION_ARG_CALLBACK, node_down_cb,
"Simulate taking a node offline",
"NODE" },
{ "node-fail", 'f', 0, G_OPTION_ARG_CALLBACK, node_fail_cb,
"Simulate a node failing",
"NODE" },
{ "op-inject", 'i', 0, G_OPTION_ARG_CALLBACK, op_inject_cb,
"Generate a failure for the cluster to react to in the simulation.\n"
INDENT "See `Operation Specification` help for more information.",
"OPSPEC" },
{ "op-fail", 'F', 0, G_OPTION_ARG_CALLBACK, op_fail_cb,
"If the specified task occurs during the simulation, have it fail with return code ${rc}.\n"
INDENT "The transition will normally stop at the failed action.\n"
INDENT "Save the result with --save-output and re-run with --xml-file.\n"
INDENT "See `Operation Specification` help for more information.",
"OPSPEC" },
{ "set-datetime", 't', 0, G_OPTION_ARG_STRING, &options.use_date,
"Set date/time (ISO 8601 format, see https://en.wikipedia.org/wiki/ISO_8601)",
"DATETIME" },
{ "quorum", 'q', 0, G_OPTION_ARG_CALLBACK, quorum_cb,
"Set to '1' (or 'true') to indicate cluster has quorum",
"QUORUM" },
{ "watchdog", 'w', 0, G_OPTION_ARG_CALLBACK, watchdog_cb,
"Set to '1' (or 'true') to indicate cluster has an active watchdog device",
"DEVICE" },
{ "ticket-grant", 'g', 0, G_OPTION_ARG_CALLBACK, ticket_grant_cb,
"Simulate granting a ticket",
"TICKET" },
{ "ticket-revoke", 'r', 0, G_OPTION_ARG_CALLBACK, ticket_revoke_cb,
"Simulate revoking a ticket",
"TICKET" },
{ "ticket-standby", 'b', 0, G_OPTION_ARG_CALLBACK, ticket_standby_cb,
"Simulate making a ticket standby",
"TICKET" },
{ "ticket-activate", 'e', 0, G_OPTION_ARG_CALLBACK, ticket_activate_cb,
"Simulate activating a ticket",
"TICKET" },
{ NULL }
};
static GOptionEntry artifact_entries[] = {
{ "save-input", 'I', 0, G_OPTION_ARG_FILENAME, &options.input_file,
"Save the input configuration to the named file",
"FILE" },
{ "save-output", 'O', 0, G_OPTION_ARG_FILENAME, &options.output_file,
"Save the output configuration to the named file",
"FILE" },
{ "save-graph", 'G', 0, G_OPTION_ARG_CALLBACK, save_graph_cb,
"Save the transition graph (XML format) to the named file",
"FILE" },
{ "save-dotfile", 'D', 0, G_OPTION_ARG_CALLBACK, save_dotfile_cb,
"Save the transition graph (DOT format) to the named file",
"FILE" },
{ "all-actions", 'a', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, all_actions_cb,
"Display all possible actions in DOT graph (even if not part of transition)",
NULL },
{ NULL }
};
static GOptionEntry source_entries[] = {
{ "live-check", 'L', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, live_check_cb,
"Connect to CIB manager and use the current CIB contents as input",
NULL },
{ "xml-file", 'x', 0, G_OPTION_ARG_CALLBACK, xml_file_cb,
"Retrieve XML from the named file",
"FILE" },
{ "xml-pipe", 'p', G_OPTION_FLAG_NO_ARG, G_OPTION_ARG_CALLBACK, xml_pipe_cb,
"Retrieve XML from stdin",
NULL },
{ NULL }
};
+/*!
+ * \internal
+ * \brief Output a configuration error
+ *
+ * \param[in] ctx Output object
+ * \param[in] msg printf(3)-style format string
+ * \param[in] ... Format string arguments
+ */
+G_GNUC_PRINTF(2, 3)
+static void
+output_config_error(void *ctx, const char *msg, ...)
+{
+ va_list ap;
+ char *buf = NULL;
+ pcmk__output_t *out = ctx;
+
+ va_start(ap, msg);
+ pcmk__assert(vasprintf(&buf, msg, ap) > 0);
+ if (!out->is_quiet(out)) {
+ out->err(out, "error: %s", buf);
+ }
+ va_end(ap);
+}
+
+/*!
+ * \internal
+ * \brief Output a configuration warning
+ *
+ * \param[in] ctx Output object
+ * \param[in] msg printf(3)-style format string
+ * \param[in] ... Format string arguments
+ */
+G_GNUC_PRINTF(2, 3)
+static void
+output_config_warning(void *ctx, const char *msg, ...)
+{
+ va_list ap;
+ char *buf = NULL;
+ pcmk__output_t *out = ctx;
+
+ va_start(ap, msg);
+ pcmk__assert(vasprintf(&buf, msg, ap) > 0);
+ if (!out->is_quiet(out)) {
+ out->err(out, "warning: %s", buf);
+ }
+ va_end(ap);
+}
+
static int
setup_input(pcmk__output_t *out, const char *input, const char *output,
GError **error)
{
int rc = pcmk_rc_ok;
xmlNode *cib_object = NULL;
char *local_output = NULL;
if (input == NULL) {
/* Use live CIB */
rc = cib__signon_query(out, NULL, &cib_object);
if (rc != pcmk_rc_ok) {
// cib__signon_query() outputs any relevant error
return rc;
}
} else if (pcmk__str_eq(input, "-", pcmk__str_casei)) {
cib_object = pcmk__xml_read(NULL);
} else {
cib_object = pcmk__xml_read(input);
}
if (cib_object == NULL) {
rc = pcmk_rc_bad_input;
g_set_error(error, PCMK__EXITC_ERROR, pcmk_rc2exitc(rc),
"Could not read input XML: %s", pcmk_rc_str(rc));
return rc;
}
if (pcmk_find_cib_element(cib_object, PCMK_XE_STATUS) == NULL) {
pcmk__xe_create(cib_object, PCMK_XE_STATUS);
}
rc = pcmk__update_configured_schema(&cib_object, false);
if (rc != pcmk_rc_ok) {
pcmk__xml_free(cib_object);
return rc;
}
if (!pcmk__validate_xml(cib_object, NULL, NULL, NULL)) {
pcmk__xml_free(cib_object);
return pcmk_rc_schema_validation;
}
if (output == NULL) {
char *pid = pcmk__getpid_s();
local_output = get_shadow_file(pid);
temp_shadow = strdup(local_output);
output = local_output;
free(pid);
}
rc = pcmk__xml_write_file(cib_object, output, false);
if (rc != pcmk_rc_ok) {
g_set_error(error, PCMK__EXITC_ERROR, CRM_EX_CANTCREAT,
"Could not create '%s': %s", output, pcmk_rc_str(rc));
} else {
setenv("CIB_file", output, 1);
}
pcmk__xml_free(cib_object);
free(local_output);
return rc;
}
static GOptionContext *
build_arg_context(pcmk__common_args_t *args, GOptionGroup **group) {
GOptionContext *context = NULL;
GOptionEntry extra_prog_entries[] = {
{ "quiet", 'Q', 0, G_OPTION_ARG_NONE, &(args->quiet),
"Display only essential output",
NULL },
{ NULL }
};
const char *description = "Operation Specification:\n\n"
"The OPSPEC in any command line option is of the form\n"
"${resource}_${task}_${interval_in_ms}@${node}=${rc}\n"
"(memcached_monitor_20000@bart.example.com=7, for example).\n"
"${rc} is an OCF return code. For more information on these\n"
"return codes, refer to https://clusterlabs.org/pacemaker/doc/2.1/Pacemaker_Administration/html/agents.html#ocf-return-codes\n\n"
"Examples:\n\n"
"Pretend a recurring monitor action found memcached stopped on node\n"
"fred.example.com and, during recovery, that the memcached stop\n"
"action failed:\n\n"
"\tcrm_simulate -LS --op-inject memcached:0_monitor_20000@bart.example.com=7 "
"--op-fail memcached:0_stop_0@fred.example.com=1 --save-output /tmp/memcached-test.xml\n\n"
"Now see what the reaction to the stop failed would be:\n\n"
"\tcrm_simulate -S --xml-file /tmp/memcached-test.xml\n\n";
context = pcmk__build_arg_context(args, "text (default), xml", group, NULL);
pcmk__add_main_args(context, extra_prog_entries);
g_option_context_set_description(context, description);
pcmk__add_arg_group(context, "operations", "Operations:",
"Show operations options", operation_entries);
pcmk__add_arg_group(context, "synthetic", "Synthetic Cluster Events:",
"Show synthetic cluster event options", synthetic_entries);
pcmk__add_arg_group(context, "artifact", "Artifact Options:",
"Show artifact options", artifact_entries);
pcmk__add_arg_group(context, "source", "Data Source:",
"Show data source options", source_entries);
return context;
}
int
main(int argc, char **argv)
{
int rc = pcmk_rc_ok;
pcmk_scheduler_t *scheduler = NULL;
pcmk__output_t *out = NULL;
GError *error = NULL;
GOptionGroup *output_group = NULL;
pcmk__common_args_t *args = pcmk__new_common_args(SUMMARY);
gchar **processed_args = pcmk__cmdline_preproc(argv, "bdefgiqrtuwxDFGINOP");
GOptionContext *context = build_arg_context(args, &output_group);
options.injections = calloc(1, sizeof(pcmk_injections_t));
if (options.injections == NULL) {
rc = ENOMEM;
goto done;
}
/* This must come before g_option_context_parse_strv. */
options.xml_file = strdup("-");
pcmk__register_formats(output_group, formats);
if (!g_option_context_parse_strv(context, &processed_args, &error)) {
exit_code = CRM_EX_USAGE;
goto done;
}
pcmk__cli_init_logging("crm_simulate", args->verbosity);
rc = pcmk__output_new(&out, args->output_ty, args->output_dest, argv);
if (rc != pcmk_rc_ok) {
fprintf(stderr, "Error creating output format %s: %s\n",
args->output_ty, pcmk_rc_str(rc));
exit_code = CRM_EX_ERROR;
goto done;
}
if (pcmk__str_eq(args->output_ty, "text", pcmk__str_null_matches) &&
!(pcmk_is_set(options.flags, pcmk_sim_show_scores) && args->quiet)) {
pcmk__output_text_set_fancy(out, true);
}
pe__register_messages(out);
pcmk__register_lib_messages(out);
out->quiet = args->quiet;
+ pcmk__set_config_error_handler(output_config_error, out);
+ pcmk__set_config_warning_handler(output_config_warning, out);
+
if (args->version) {
out->version(out, false);
goto done;
}
if (args->verbosity > 0) {
options.flags |= pcmk_sim_verbose;
}
scheduler = pe_new_working_set();
if (scheduler == NULL) {
rc = ENOMEM;
g_set_error(&error, PCMK__RC_ERROR, rc,
"Could not allocate scheduler data");
goto done;
}
if (pcmk_is_set(options.flags, pcmk_sim_show_scores)) {
pcmk__set_scheduler_flags(scheduler, pcmk__sched_output_scores);
}
if (pcmk_is_set(options.flags, pcmk_sim_show_utilization)) {
pcmk__set_scheduler_flags(scheduler, pcmk__sched_show_utilization);
}
if (options.test_dir != NULL) {
scheduler->priv->out = out;
pcmk__profile_dir(options.test_dir, options.repeat, scheduler,
options.use_date);
rc = pcmk_rc_ok;
goto done;
}
rc = setup_input(out, options.xml_file,
options.store? options.xml_file : options.output_file,
&error);
if (rc != pcmk_rc_ok) {
goto done;
}
rc = pcmk__simulate(scheduler, out, options.injections, options.flags,
section_opts, options.use_date, options.input_file,
options.graph_file, options.dot_file);
done:
pcmk__output_and_clear_error(&error, NULL);
/* There sure is a lot to free in options. */
free(options.dot_file);
free(options.graph_file);
g_free(options.input_file);
g_free(options.output_file);
g_free(options.test_dir);
free(options.use_date);
free(options.xml_file);
pcmk_free_injections(options.injections);
pcmk__free_arg_context(context);
g_strfreev(processed_args);
if (scheduler != NULL) {
pe_free_working_set(scheduler);
}
fflush(stderr);
if (temp_shadow) {
unlink(temp_shadow);
free(temp_shadow);
}
if (rc != pcmk_rc_ok) {
exit_code = pcmk_rc2exitc(rc);
}
if (out != NULL) {
out->finish(out, exit_code, true, NULL);
pcmk__output_free(out);
}
pcmk__unregister_formats();
crm_exit(exit_code);
}
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