diff --git a/ops/monitoring/k0.jsonnet b/ops/monitoring/k0.jsonnet
index 028a463..62810c5 100644
--- a/ops/monitoring/k0.jsonnet
+++ b/ops/monitoring/k0.jsonnet
@@ -1,11 +1,39 @@
-local lib = import "lib.libsonnet";
+local cluster = import "lib/cluster.libsonnet";
+local global = import "lib/global.libsonnet";
+
+// Monitoring tiers set up on k0. See README for architectural background.
 
 {
-    cluster: lib.Cluster("k0") {
-        cfg+: {
-            storageClasses+: {
-                prometheus: "waw-hdd-redundant-3",
-            },
+    local k0 = self,
+    local cfg = {
+        storageClasses+: {
+            prometheus: "waw-hdd-redundant-3",
+            victoria: "waw-hdd-redundant-3",
         },
     },
+
+    // Cluster tier - prometheus.
+    cluster: cluster.Cluster("k0") {
+        cfg+: cfg {
+            username: "cluster-k0",
+            upstreams: [
+                { password: std.split(importstr "secrets/plain/global-agent-cluster-k0", "\n")[0], remote: k0.global.internalIngestURL  },
+            ],
+        },
+    },
+
+    // Global tier - victoria metrics.
+    global: global.Global("k0") {
+        cfg+: cfg {
+            hosts: {
+                globalAPI: "monitoring-global-api.k0.hswaw.net",
+            },
+            agents: [
+                // Ingestion from k0 cluster tier.
+                { username: k0.cluster.cfg.username, password: std.split(importstr "secrets/plain/global-agent-cluster-k0", "\n")[0], },
+                // Access from q3k's test Grafana.
+                { username: "grafana", password: std.split(importstr "secrets/plain/global-agent-grafana", "\n")[0], },
+            ],
+        }, 
+    },
 }