Add blackbox configuration: define modules for HTTP, TCP, SSH, and ICMP probing

blackbox/blackbox.yaml

@@ -0,0 +1,27 @@
+modules:
+  http_2xx:
+    prober: http
+    http:
+      preferred_ip_protocol: "ip4"
+  tcp_connect:
+    prober: tcp
+  ssh_banner:
+    prober: tcp
+    tcp:
+      query_response:
+      - expect: "^SSH-2.0-"
+      - send: "SSH-2.0-blackbox-ssh-check"
+  icmp:
+    prober: icmp
+  icmp_ttl5:
+    prober: icmp
+    timeout: 5s
+    icmp:
+      ttl: 5
+  http_3xx:
+    prober: http
+    http:
+      preferred_ip_protocol: "ip4"
+      enable_http3: true
+      enable_http2: false
+      valid_http_versions: ["HTTP/3.0"]