Provide more agent analytics to posthog (#10887)

* Move statistics related functions to analytics.c

* error message change, space added after if

* start an analytics thread

* use heartbeat instead of sleep

* add late enviroment (after rrdinit) pick of some attributes

* change loop

* re-enable info messages

* remove possible new line

* log and report hits on allmetrics pages. detect if exporting engines are enabled/in use, and report them

* use lowercase for analytics variables

* add collectors

* add buildinfo

* more attributes from late environment

* add new attributes to v1/info

* re-gather meta data before exit. update allmetrics counters to be available in v1/info

* log hits to dashboard

* add mirrored hosts

* added notification methods

* fix spaces, proper JSON naming

* add alerts, charts and metrics count

* more attributes

* keep the thread up, and report a meta event every 2 hours

* small formating changes. Disable analytics_log_prometheus when for unit testing. Add the new attributes to the anonymous-statistics.sh.in script

* applied clang-format

* dont gather data again on exit

* safe buffer length in snprintfz

* add rrdset lock

* remove show_archived

2 files changed, 77 insertions, 2 deletions

diff --git a/web/api/exporters/shell/allmetrics_shell.c b/web/api/exporters/shell/allmetrics_shell.c
index daa004992f..0b0ce22913 100644
--- a/web/api/exporters/shell/allmetrics_shell.c
+++ b/web/api/exporters/shell/allmetrics_shell.c
@@ -23,6 +23,7 @@ static inline size_t shell_name_copy(char *d, const char *s, size_t usable) {
 #define SHELL_ELEMENT_MAX 100
 
 void rrd_stats_api_v1_charts_allmetrics_shell(RRDHOST *host, BUFFER *wb) {
+    analytics_log_shell();
     rrdhost_rdlock(host);
 
     // for each chart
@@ -92,6 +93,7 @@ void rrd_stats_api_v1_charts_allmetrics_shell(RRDHOST *host, BUFFER *wb) {
 // ----------------------------------------------------------------------------
 
 void rrd_stats_api_v1_charts_allmetrics_json(RRDHOST *host, BUFFER *wb) {
+    analytics_log_json();
     rrdhost_rdlock(host);
 
     buffer_strcat(wb, "{");
diff --git a/web/api/web_api_v1.c b/web/api/web_api_v1.c
index 1d8217bbd1..96fcf485ac 100644
--- a/web/api/web_api_v1.c
+++ b/web/api/web_api_v1.c
@@ -750,6 +750,7 @@ inline int web_client_api_request_v1_registry(RRDHOST *host, struct web_client *
 
     if(unlikely(action == 'H')) {
         // HELLO request, dashboard ACL
+        analytics_log_dashboard();
         if(unlikely(!web_client_can_access_dashboard(w)))
             return web_client_permission_denied(w);
     }
@@ -995,10 +996,82 @@ inline int web_client_api_request_v1_info_fill_buffer(RRDHOST *host, BUFFER *wb)
     }
 #ifdef ENABLE_ACLK
     if (aclk_connected)
-        buffer_strcat(wb, "\t\"aclk-available\": true\n");
+        buffer_strcat(wb, "\t\"aclk-available\": true,\n");
     else
 #endif
-        buffer_strcat(wb, "\t\"aclk-available\": false\n");     // Intentionally valid with/without #ifdef above
+        buffer_strcat(wb, "\t\"aclk-available\": false,\n");     // Intentionally valid with/without #ifdef above
+
+    buffer_strcat(wb, "\t\"memory-mode\": ");
+    analytics_get_data(analytics_data.netdata_config_memory_mode, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"multidb-disk-quota\": ");
+    analytics_get_data(analytics_data.netdata_config_multidb_disk_quota, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"page-cache-size\": ");
+    analytics_get_data(analytics_data.netdata_config_page_cache_size, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"stream-enabled\": ");
+    analytics_get_data(analytics_data.netdata_config_stream_enabled, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"hosts-available\": ");
+    analytics_get_data(analytics_data.netdata_config_hosts_available, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"https-enabled\": ");
+    analytics_get_data(analytics_data.netdata_config_https_enabled, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"buildinfo\": ");
+    analytics_get_data(analytics_data.netdata_buildinfo, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"release-channel\": ");
+    analytics_get_data(analytics_data.netdata_config_release_channel, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"web-enabled\": ");
+    analytics_get_data(analytics_data.netdata_config_web_enabled, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"notification-methods\": ");
+    analytics_get_data(analytics_data.netdata_notification_methods, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"exporting-enabled\": ");
+    analytics_get_data(analytics_data.netdata_config_exporting_enabled, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"exporting-connectors\": ");
+    analytics_get_data(analytics_data.netdata_exporting_connectors, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"allmetrics-prometheus-used\": ");
+    analytics_get_data(analytics_data.netdata_allmetrics_prometheus_used, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"allmetrics-shell-used\": ");
+    analytics_get_data(analytics_data.netdata_allmetrics_shell_used, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"allmetrics-json-used\": ");
+    analytics_get_data(analytics_data.netdata_allmetrics_json_used, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"dashboard-used\": ");
+    analytics_get_data(analytics_data.netdata_dashboard_used, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"charts-count\": ");
+    analytics_get_data(analytics_data.netdata_charts_count, wb);
+    buffer_strcat(wb, ",\n");
+
+    buffer_strcat(wb, "\t\"metrics-count\": ");
+    analytics_get_data(analytics_data.netdata_metrics_count, wb);
+    buffer_strcat(wb, "\n");
 
     buffer_strcat(wb, "}");
     return 0;