checkpointing prototype

collector/lib/CollectorService.cpp

@@ -23,6 +23,7 @@ extern "C" {
 #include "Utility.h"
 #include "prometheus/exposer.h"
 #include "system-inspector/Service.h"
+#include "curl/curl.h"
 
 extern unsigned char g_bpf_drop_syscalls[];  // defined in libscap
 
@@ -65,6 +66,9 @@ void CollectorService::RunForever() {
   std::unique_ptr<NetworkStatusInspector> network_status_inspector;
 
   CLOG(INFO) << "Network scrape interval set to " << config_.ScrapeInterval() << " seconds";
+
+  CLOG(INFO) << "HALLO DMITRII";
+  CollectorService::QueryKubelet();
 
   if (config_.grpc_channel) {
     CLOG(INFO) << "Waiting for Sensor to become ready ...";
@@ -138,6 +142,20 @@ void CollectorService::RunForever() {
   system_inspector_.CleanUp();
 }
 
+void CollectorService::QueryKubelet() {
+  CLOG(INFO) << "Query Kubelet Example";
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    CURLcode res;
+    curl_easy_setopt(curl, CURLOPT_URL, "https://example.com");
+    res = curl_easy_perform(curl);
+    curl_easy_cleanup(curl);
+    if (res) {
+      CLOG(INFO) << printf("response: %d\n", res);
+    }
+  }
+}
+
 bool CollectorService::InitKernel() {
   return system_inspector_.InitKernel(config_);
 }

collector/lib/CollectorService.h

@@ -24,6 +24,8 @@ class CollectorService {
   const std::atomic<int>& signum_;
 
   system_inspector::Service system_inspector_;
+
+  void QueryKubelet();
 };
 
 bool SetupKernelDriver(CollectorService& collector, const std::string& GRPCServer, const CollectorConfig& config);

pod.yaml

@@ -0,0 +1,28 @@
+version: "3.9"
+services:
+  collector:
+    image: quay.io/stackrox-io/collector:3.19.x-61-g18fbe6077a-dirty
+    container_name: collector-debug
+    network_mode: host
+    privileged: true
+    environment:
+      - GRPC_SERVER=localhost:9999
+      - COLLECTOR_CONFIG={"logLevel":"info","turnOffScrape":true,"scrapeInterval":2}
+      - COLLECTION_METHOD=core-bpf
+      - COLLECTOR_HOST_ROOT=/host
+    volumes:
+      - /var/run/docker.sock:/host/var/run/docker.sock:ro
+      - /proc:/host/proc:ro
+      - /etc:/host/etc:ro
+      - /usr/lib:/host/usr/lib:ro
+      - /sys/:/host/sys/:ro
+      - /dev:/host/dev:ro
+    depends_on:
+      - grpc-server-debug
+  grpc-server-debug:
+    image: quay.io/rhacs-eng/grpc-server:4.3.8
+    container_name: grpc-server
+    network_mode: host
+    user: 1000:1000
+    volumes:
+      - /tmp:/tmp:rw