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-rw-r--r--libnetdata/health/Makefile.am8
-rw-r--r--libnetdata/health/health.c170
-rw-r--r--libnetdata/health/health.h55
3 files changed, 233 insertions, 0 deletions
diff --git a/libnetdata/health/Makefile.am b/libnetdata/health/Makefile.am
new file mode 100644
index 000000000..9b7995f17
--- /dev/null
+++ b/libnetdata/health/Makefile.am
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+AUTOMAKE_OPTIONS = subdir-objects
+MAINTAINERCLEANFILES = $(srcdir)/Makefile.in
+
+
+dist_noinst_DATA = \
+ $(NULL)
diff --git a/libnetdata/health/health.c b/libnetdata/health/health.c
new file mode 100644
index 000000000..b93de8b93
--- /dev/null
+++ b/libnetdata/health/health.c
@@ -0,0 +1,170 @@
+#include "health.h"
+
+/**
+ * Create Silencer
+ *
+ * Allocate a new silencer to Netdata.
+ *
+ * @return It returns the address off the silencer on success and NULL otherwise
+ */
+SILENCER *create_silencer(void) {
+ SILENCER *t = callocz(1, sizeof(SILENCER));
+ debug(D_HEALTH, "HEALTH command API: Created empty silencer");
+
+ return t;
+}
+
+/**
+ * Health Silencers add
+ *
+ * Add more one silencer to the list of silenecers.
+ *
+ * @param silencer
+ */
+void health_silencers_add(SILENCER *silencer) {
+ // Add the created instance to the linked list in silencers
+ silencer->next = silencers->silencers;
+ silencers->silencers = silencer;
+ debug(D_HEALTH, "HEALTH command API: Added silencer %s:%s:%s:%s:%s", silencer->alarms,
+ silencer->charts, silencer->contexts, silencer->hosts, silencer->families
+ );
+}
+
+/**
+ * Silencers Add Parameter
+ *
+ * Create a new silencer and adjust the variables
+ *
+ * @param silencer a pointer to the silencer that will be adjusted
+ * @param key the key value sent by client
+ * @param value the value sent to the key
+ *
+ * @return It returns the silencer configured on success and NULL otherwise
+ */
+SILENCER *health_silencers_addparam(SILENCER *silencer, char *key, char *value) {
+ static uint32_t
+ hash_alarm = 0,
+ hash_template = 0,
+ hash_chart = 0,
+ hash_context = 0,
+ hash_host = 0,
+ hash_families = 0;
+
+ if (unlikely(!hash_alarm)) {
+ hash_alarm = simple_uhash(HEALTH_ALARM_KEY);
+ hash_template = simple_uhash(HEALTH_TEMPLATE_KEY);
+ hash_chart = simple_uhash(HEALTH_CHART_KEY);
+ hash_context = simple_uhash(HEALTH_CONTEXT_KEY);
+ hash_host = simple_uhash(HEALTH_HOST_KEY);
+ hash_families = simple_uhash(HEALTH_FAMILIES_KEY);
+ }
+
+ uint32_t hash = simple_uhash(key);
+ if (unlikely(silencer == NULL)) {
+ if (
+ (hash == hash_alarm && !strcasecmp(key, HEALTH_ALARM_KEY)) ||
+ (hash == hash_template && !strcasecmp(key, HEALTH_TEMPLATE_KEY)) ||
+ (hash == hash_chart && !strcasecmp(key, HEALTH_CHART_KEY)) ||
+ (hash == hash_context && !strcasecmp(key, HEALTH_CONTEXT_KEY)) ||
+ (hash == hash_host && !strcasecmp(key, HEALTH_HOST_KEY)) ||
+ (hash == hash_families && !strcasecmp(key, HEALTH_FAMILIES_KEY))
+ ) {
+ silencer = create_silencer();
+ if(!silencer) {
+ error("Cannot add a new silencer to Netdata");
+ return NULL;
+ }
+ }
+ }
+
+ if (hash == hash_alarm && !strcasecmp(key, HEALTH_ALARM_KEY)) {
+ silencer->alarms = strdupz(value);
+ silencer->alarms_pattern = simple_pattern_create(silencer->alarms, NULL, SIMPLE_PATTERN_EXACT);
+ } else if (hash == hash_chart && !strcasecmp(key, HEALTH_CHART_KEY)) {
+ silencer->charts = strdupz(value);
+ silencer->charts_pattern = simple_pattern_create(silencer->charts, NULL, SIMPLE_PATTERN_EXACT);
+ } else if (hash == hash_context && !strcasecmp(key, HEALTH_CONTEXT_KEY)) {
+ silencer->contexts = strdupz(value);
+ silencer->contexts_pattern = simple_pattern_create(silencer->contexts, NULL, SIMPLE_PATTERN_EXACT);
+ } else if (hash == hash_host && !strcasecmp(key, HEALTH_HOST_KEY)) {
+ silencer->hosts = strdupz(value);
+ silencer->hosts_pattern = simple_pattern_create(silencer->hosts, NULL, SIMPLE_PATTERN_EXACT);
+ } else if (hash == hash_families && !strcasecmp(key, HEALTH_FAMILIES_KEY)) {
+ silencer->families = strdupz(value);
+ silencer->families_pattern = simple_pattern_create(silencer->families, NULL, SIMPLE_PATTERN_EXACT);
+ }
+
+ return silencer;
+}
+
+/**
+ * JSON Read Callback
+ *
+ * Callback called by netdata to create the silencer.
+ *
+ * @param e the main json structure
+ *
+ * @return It always return 0.
+ */
+int health_silencers_json_read_callback(JSON_ENTRY *e)
+{
+ switch(e->type) {
+ case JSON_OBJECT:
+#ifndef ENABLE_JSONC
+ e->callback_function = health_silencers_json_read_callback;
+ if(e->name && strcmp(e->name,"")) {
+ // init silencer
+ debug(D_HEALTH, "JSON: Got object with a name, initializing new silencer for %s",e->name);
+#endif
+ e->callback_data = create_silencer();
+ if(e->callback_data) {
+ health_silencers_add(e->callback_data);
+ }
+#ifndef ENABLE_JSONC
+ }
+#endif
+ break;
+
+ case JSON_ARRAY:
+ e->callback_function = health_silencers_json_read_callback;
+ break;
+
+ case JSON_STRING:
+ if(!strcmp(e->name,"type")) {
+ debug(D_HEALTH, "JSON: Processing type=%s",e->data.string);
+ if (!strcmp(e->data.string,"SILENCE")) silencers->stype = STYPE_SILENCE_NOTIFICATIONS;
+ else if (!strcmp(e->data.string,"DISABLE")) silencers->stype = STYPE_DISABLE_ALARMS;
+ } else {
+ debug(D_HEALTH, "JSON: Adding %s=%s", e->name, e->data.string);
+ health_silencers_addparam(e->callback_data, e->name, e->data.string);
+ }
+ break;
+
+ case JSON_BOOLEAN:
+ debug(D_HEALTH, "JSON: Processing all_alarms");
+ silencers->all_alarms=e->data.boolean?1:0;
+ break;
+
+ case JSON_NUMBER:
+ case JSON_NULL:
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * Initialize Global Silencers
+ *
+ * Initialize the silencer for the whole netdata system.
+ *
+ * @return It returns 0 on success and -1 otherwise
+ */
+int health_initialize_global_silencers() {
+ silencers = mallocz(sizeof(SILENCERS));
+ silencers->all_alarms=0;
+ silencers->stype=STYPE_NONE;
+ silencers->silencers=NULL;
+
+ return 0;
+} \ No newline at end of file
diff --git a/libnetdata/health/health.h b/libnetdata/health/health.h
new file mode 100644
index 000000000..a3dc0775f
--- /dev/null
+++ b/libnetdata/health/health.h
@@ -0,0 +1,55 @@
+#ifndef NETDATA_HEALTH_LIB
+# define NETDATA_HEALTH_LIB 1
+
+# include "../libnetdata.h"
+
+#define HEALTH_ALARM_KEY "alarm"
+#define HEALTH_TEMPLATE_KEY "template"
+#define HEALTH_CONTEXT_KEY "context"
+#define HEALTH_CHART_KEY "chart"
+#define HEALTH_HOST_KEY "hosts"
+#define HEALTH_OS_KEY "os"
+#define HEALTH_FAMILIES_KEY "families"
+#define HEALTH_LOOKUP_KEY "lookup"
+#define HEALTH_CALC_KEY "calc"
+
+typedef struct silencer {
+ char *alarms;
+ SIMPLE_PATTERN *alarms_pattern;
+
+ char *hosts;
+ SIMPLE_PATTERN *hosts_pattern;
+
+ char *contexts;
+ SIMPLE_PATTERN *contexts_pattern;
+
+ char *charts;
+ SIMPLE_PATTERN *charts_pattern;
+
+ char *families;
+ SIMPLE_PATTERN *families_pattern;
+
+ struct silencer *next;
+} SILENCER;
+
+typedef enum silence_type {
+ STYPE_NONE,
+ STYPE_DISABLE_ALARMS,
+ STYPE_SILENCE_NOTIFICATIONS
+} SILENCE_TYPE;
+
+typedef struct silencers {
+ int all_alarms;
+ SILENCE_TYPE stype;
+ SILENCER *silencers;
+} SILENCERS;
+
+SILENCERS *silencers;
+
+extern SILENCER *create_silencer(void);
+extern int health_silencers_json_read_callback(JSON_ENTRY *e);
+extern void health_silencers_add(SILENCER *silencer);
+extern SILENCER * health_silencers_addparam(SILENCER *silencer, char *key, char *value);
+extern int health_initialize_global_silencers();
+
+#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-08 15:16:23 +0000