Reduce cost of staging

config/staging.yaml

@@ -7,21 +7,29 @@ binderhub:
       hub_url: https://hub.gke2.staging.mybinder.org
       badge_base_url: https://staging.mybinder.org
       image_prefix: gcr.io/binderhub-288415/r2d-staging-g5b5b759-
+      # image_prefix: us-central1-docker.pkg.dev/binderhub-288415/staging/r2d-2023-04-
       sticky_builds: true
       build_memory_limit: "2G"
+    # DockerRegistry:
+    #   token_url: "https://us-central1-docker.pkg.dev/v2/token"
+
+  # registry:
+  #   url: "https://us-central1-docker.pkg.dev"
+  #   username: "_json_key"
+
   extraEnv:
     EVENT_LOG_NAME: "binderhub-staging-events-text"
 
   resources:
     requests:
-      cpu: 0.25
+      cpu: 0.1
       memory: 512Mi
 
   hpa:
     enabled: true
     maxReplicas: 3
     minReplicas: 1
-    targetCPU: 50 # 50% of cpu request, so 0.125 CPU
+    targetCPU: 90 # 90% of cpu request, so 90m CPU
 
   dind:
     resources:
@@ -30,7 +38,7 @@ binderhub:
         memory: 1Gi
       limits:
         cpu: "1"
-        memory: 2.5Gi
+        memory: 1Gi
 
   ingress:
     hosts:
@@ -41,14 +49,14 @@ binderhub:
     hub:
       resources:
         requests:
-          memory: 512Mi
-          cpu: null
+          memory: 100M
+          cpu: "10m"
     singleuser:
       memory:
-        guarantee: 256M
+        guarantee: 100M
         limit: 256M
       cpu:
-        guarantee: 0.1
+        guarantee: .01
         limit: 0.5
     ingress:
       hosts:
@@ -61,7 +69,20 @@ binderhub:
             - hub.gke2.staging.mybinder.org
     scheduling:
       userPlaceholder:
-        replicas: 2
+        replicas: 1
+
+    proxy:
+      chp:
+        resources:
+          requests:
+            memory: 100M
+            cpu: 10m
+
+minesweeper:
+  resources:
+    requests:
+      cpu: 5m
+      memory: 100Mi
 
 grafana:
   ingress:
@@ -101,8 +122,16 @@ prometheus:
 
 ingress-nginx:
   controller:
+    replicaCount: 2
     service:
       loadBalancerIP: 35.222.35.25
+    resources:
+      requests:
+        cpu: 10m
+        memory: 100Mi
+      limits:
+        cpu: 500m
+        memory: 500Mi
 
 static:
   ingress:
@@ -137,7 +166,9 @@ analyticsPublisher:
   events:
     logName: binderhub-staging-events-text
     sourceBucket: binder-staging-events-raw-export
-
+  resources:
+    requests:
+      cpu: 10m
   # TODO: copy to values
   cloudCosts:
     sourceBucket: binder-billing-archive
@@ -153,6 +184,13 @@ gcsProxy:
 federationRedirect:
   host: staging.mybinder.org
   enabled: true
+  resources:
+    requests:
+      cpu: 10m
+      memory: 100Mi
+    limits:
+      cpu: 0.2
+      memory: 200Mi
   hosts:
     gke:
       url: https://gke2.staging.mybinder.org

mybinder/templates/analytics-publisher/deployment.yaml

@@ -50,12 +50,6 @@ spec:
           - name: config
             mountPath: /etc/analytics-publisher
             readOnly: true
-        resources:
-          requests:
-            cpu: 0.2
-            memory: 200Mi
-          limits:
-            cpu: 0.2
-            memory: 300Mi
+        resources: {{ .Values.analyticsPublisher.resources | toJson }}
 
 {{- end }}

mybinder/templates/federation-redirect/deployment.yaml

@@ -54,13 +54,10 @@ spec:
           - name: config
             mountPath: /etc/federation-redirect
             readOnly: true
+        {{- with .Values.federationRedirect.resources }}
         resources:
-          requests:
-            cpu: 0.2
-            memory: 200Mi
-          limits:
-            cpu: 0.2
-            memory: 300Mi
+          {{- . | toYaml | nindent 10 }}
+        {{- end }}
       tolerations:
       - key: "node.kubernetes.io/unschedulable"
         operator: "Exists"

mybinder/templates/matomo/deployment.yaml

@@ -59,7 +59,10 @@ spec:
         volumeMounts:
           - name: matomo-config-rw
             mountPath: /var/www/html/config/
-        resources: {{ toJson .Values.matomo.resources }}
+        {{- with .Values.matomo.resources }}
+        resources:
+          {{- . | toYaml | nindent 10 }}
+        {{- end }}
       - name: nginx
         image: nginx:1.15
         ports:

mybinder/templates/minesweeper/daemonset.yaml

@@ -57,7 +57,8 @@ spec:
             add:
               - KILL
         {{- with .Values.minesweeper.resources }}
-        resources: {{ toJson . }}
+        resources:
+          {{- . | toYaml | nindent 10 }}
         {{- end }}
         volumeMounts:
         - name: config

mybinder/values.yaml

@@ -542,14 +542,28 @@ analyticsPublisher:
     fileName: cloud-costs.jsonl
     kind: csv
   nodeSelector: {}
+  resources:
+    requests:
+      cpu: 0.2
+      memory: 200Mi
+    limits:
+      cpu: 0.2
+      memory: 300Mi
 
 # this is defined in secrets/ for the OVH cluster
 eventsArchiver:
   serviceAccountKey: ""
 
 federationRedirect:
-  host: mybinder.org
   enabled: false
+  host: mybinder.org
+  resources:
+    requests:
+      cpu: 0.2
+      memory: 200Mi
+    limits:
+      cpu: 0.2
+      memory: 300Mi
   image:
     name: jupyterhub/mybinder.org-federation-redirect
     tag: "set-by-chartpress"

terraform/gcp/modules/mybinder/resource.tf

@@ -16,7 +16,7 @@ locals {
     },
     binderhub-builder = {
       display_name = "Storage access for ${var.name} image builder",
-      role         = "roles/storage.admin",
+      role         = var.use_artifact_registry ? "roles/artifactregistry.createOnPushWriter" : "roles/storage.admin",
     },
   }
   # add -staging to events prefix, but don't include 'prod' in prod events
@@ -25,6 +25,13 @@ locals {
   events_log_prefix = var.name == "prod" ? "binderhub" : "binderhub-${var.name}"
 }
 
+resource "google_artifact_registry_repository" "repo" {
+  location      = var.registry_location != null ? var.registry_location : data.google_client_config.provider.region
+  repository_id = var.name
+  description   = "${var.name} container registry"
+  format        = "DOCKER"
+}
+
 resource "google_container_cluster" "cluster" {
   name     = var.name
   location = var.gke_location != null ? var.gke_location : data.google_client_config.provider.zone

terraform/gcp/modules/mybinder/variables.tf

@@ -14,7 +14,19 @@ variable "gke_master_version" {
 
 variable "gke_location" {
   type        = string
-  description = "GKE location for cluster if different, e.g. us-central1 for regional cluster"
+  description = "GKE location for cluster if different from provider zone, e.g. us-central1 for regional cluster"
+  default     = null
+}
+
+variable "use_artifact_registry" {
+  type        = bool
+  description = "Use artifact registry instead of legacy container registry"
+  default     = false
+}
+
+variable "registry_location" {
+  type        = string
+  description = "Registry location for cluster if different from provider region, e.g. us for multi-region"
   default     = null
 }
 

terraform/gcp/staging/main.tf

@@ -12,31 +12,36 @@ provider "google" {
 }
 
 locals {
-  gke_version = "1.19.14-gke.1900"
+  gke_version = "1.24.10-gke.2300"
 }
 
 module "mybinder" {
-  source             = "../modules/mybinder"
-  name               = "staging"
-  gke_master_version = local.gke_version
-  federation_members = []
+  source                = "../modules/mybinder"
+  name                  = "staging"
+  gke_master_version    = local.gke_version
+  use_artifact_registry = false
+  federation_members    = []
 }
 
 # define node pools here, too hard to encode with variables
-resource "google_container_node_pool" "pool" {
-  name    = "pool-2020-09"
+resource "google_container_node_pool" "pool-1" {
+  name    = "pool-2023-04"
   cluster = module.mybinder.cluster_name
 
   autoscaling {
     min_node_count = 1
-    max_node_count = 4
+    max_node_count = 3
   }
 
   version = local.gke_version
 
   node_config {
-    machine_type = "n1-standard-4"
-    disk_size_gb = 500
+    # e2-medium is 2cpu, 8GB shared-core
+    # only 1 CPU allocatable, though, and k8s itself needs most of that
+    # e2-standard-2 is 2x as expensive
+    # but 2 e2-standard-2 is $100/month
+    machine_type = "e2-standard-2"
+    disk_size_gb = 100
     disk_type    = "pd-standard"
     # https://www.terraform.io/docs/providers/google/r/container_cluster.html#oauth_scopes-1
     oauth_scopes = [
@@ -65,7 +70,7 @@ resource "google_container_node_pool" "pool" {
 
 output "private_keys" {
   value       = module.mybinder.private_keys
-  description = "GCP serice account keys"
+  description = "GCP service account keys"
   sensitive   = true
 }