Handle ephemeral hosts (#16381)

* Handle ephemeral hosts

* Node empheral removal timeout 86400 seconds (1 day)

* Move config from health to global section

* Set a node to queryable false when it is ephemeral and is removed

* Log queryable. Send queryable=0 only when forcing host deletion (the node is ephemeral)

* Switch to "is ephemeral node"
Document stream.conf

* Unregister node id

2 files changed, 0 insertions, 15 deletions

diff --git a/health/health.c b/health/health.c
index 2ed15b3214..99499c93ed 100644
--- a/health/health.c
+++ b/health/health.c
@@ -1651,17 +1651,3 @@ void *health_main(void *ptr) {
     netdata_thread_cleanup_pop(1);
     return NULL;
 }
-
-void health_add_host_labels(void) {
-    RRDLABELS *labels = localhost->rrdlabels;
-
-    // The source should be CONF, but when it is set, these labels are exported by default ('send configured labels' in exporting.conf).
-    // Their export seems to break exporting to Graphite, see https://github.com/netdata/netdata/issues/14084.
-
-    int is_ephemeral = appconfig_get_boolean(&netdata_config, CONFIG_SECTION_HEALTH, "is ephemeral", CONFIG_BOOLEAN_NO);
-    rrdlabels_add(labels, "_is_ephemeral", is_ephemeral ? "true" : "false", RRDLABEL_SRC_AUTO);
-
-    int has_unstable_connection = appconfig_get_boolean(&netdata_config, CONFIG_SECTION_HEALTH, "has unstable connection", CONFIG_BOOLEAN_NO);
-    rrdlabels_add(labels, "_has_unstable_connection", has_unstable_connection ? "true" : "false", RRDLABEL_SRC_AUTO);
-}
-
diff --git a/health/health.h b/health/health.h
index ff8fb4261e..ef24624465 100644
--- a/health/health.h
+++ b/health/health.h
@@ -102,7 +102,6 @@ void *health_cmdapi_thread(void *ptr);
 char *health_edit_command_from_source(const char *source);
 void sql_refresh_hashes(void);
 
-void health_add_host_labels(void);
 void health_string2json(BUFFER *wb, const char *prefix, const char *label, const char *value, const char *suffix);
 
 void health_log_alert_transition_with_trace(RRDHOST *host, ALARM_ENTRY *ae, int line, const char *file, const char *function);