Money saving things (#148)

* Switch from fargate to EC2 spot instances to save money

Signed-off-by: Irving Popovetsky <irving@honeycomb.io>

* Go back to 2 replicas for the prod services now that we're back on nodes

Signed-off-by: Irving Popovetsky <irving@honeycomb.io>

* clean out the fargate profiles from the eksctl config

Signed-off-by: Irving Popovetsky <irving@honeycomb.io>

* Cut down the number of ALBs to 2 from 4, one per namespace to reduce costs

Signed-off-by: Irving Popovetsky <irving@honeycomb.io>

Author: Irving Popovetsky

kubernetes/eksctl/operationcode-backend.yaml

@@ -6,30 +6,25 @@ metadata:
   name: operationcode-backend
   region: us-east-2
 
-fargateProfiles:
-  - name: fp-default
-    selectors:
-      - namespace: default
-      - namespace: kube-system
-  - name: operationcode-backends
-    selectors:
-      - namespace: operationcode
-      - namespace: operationcode-staging
-
-managedNodeGroups:
-  - name: eks-infra-nodes
-    minSize: 1
-    desiredCapacity: 1
-    maxSize: 2
-    instanceType: t3a.small
+nodeGroups:
+  - name: eks-infra-spot
+    minSize: 3
+    desiredCapacity: 3
+    maxSize: 5
+    # use Spot instance pricing
+    instancesDistribution:
+      instanceTypes:
+      - t3.small
+      onDemandBaseCapacity: 0
+      onDemandPercentageAboveBaseCapacity: 0
     volumeSize: 20
     ssh:
       allow: true
       publicKeyName: oc-ops
     labels:
       nodegroup-type: infra
     tags:
-      Name: eks-infra-nodes
+      Name: eks-infra-spot
     iam:
       withAddonPolicies:
         imageBuilder: true

kubernetes/operationcode_python_backend/overlays/prod/deployment.yaml

@@ -3,6 +3,7 @@ kind: Deployment
 metadata:
   name: back-end
 spec:
+  replicas: 2
   template:
     spec:
       containers:

kubernetes/operationcode_python_backend/overlays/prod/ingress.yaml

@@ -9,11 +9,11 @@ metadata:
     alb.ingress.kubernetes.io/listen-ports: '[{"HTTPS": 443}]'
     alb.ingress.kubernetes.io/scheme: internet-facing
     alb.ingress.kubernetes.io/ssl-policy: ELBSecurityPolicy-TLS-1-2-2017-01
-    external-dns.alpha.kubernetes.io/hostname: backend.k8s.operationcode.org
   labels:
     app: back-end
 spec:
   rules:
+  # back-end production
   - host: backend.k8s.operationcode.org
     http:
       paths:
@@ -28,3 +28,18 @@ spec:
         backend:
           serviceName: back-end-service
           servicePort: 80
+  # resources-api production
+  - host: resources.k8s.operationcode.org
+    http:
+      paths:
+      - path: /*
+        backend:
+          serviceName: resources-api-service
+          servicePort: 80
+  - host: resources.operationcode.org
+    http:
+      paths:
+      - path: /*
+        backend:
+          serviceName: resources-api-service
+          servicePort: 80

kubernetes/operationcode_python_backend/overlays/staging/ingress.yaml

@@ -9,11 +9,11 @@ metadata:
     alb.ingress.kubernetes.io/listen-ports: '[{"HTTPS": 443}]'
     alb.ingress.kubernetes.io/scheme: internet-facing
     alb.ingress.kubernetes.io/ssl-policy: ELBSecurityPolicy-TLS-1-2-2017-01
-    external-dns.alpha.kubernetes.io/hostname: backend-staging.k8s.operationcode.org
   labels:
     app: back-end
 spec:
   rules:
+  # back-end staging
   - host: backend-staging.k8s.operationcode.org
     http:
       paths:
@@ -28,3 +28,18 @@ spec:
         backend:
           serviceName: back-end-service
           servicePort: 80
+  # resources-api staging
+  - host: resources-staging.k8s.operationcode.org
+    http:
+      paths:
+      - path: /*
+        backend:
+          serviceName: resources-api-service
+          servicePort: 80
+  - host: resources.staging.operationcode.org
+    http:
+      paths:
+      - path: /*
+        backend:
+          serviceName: resources-api-service
+          servicePort: 80

kubernetes/resources_api/base/deployment.yaml

@@ -9,7 +9,7 @@ spec:
     kind: Deployment
     name: resources-api
 ---
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: resources-api

kubernetes/resources_api/overlays/prod/deployment.yaml

@@ -0,0 +1,6 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: resources-api
+spec:
+  replicas: 2

kubernetes/resources_api/overlays/prod/ingress.yaml

@@ -7,5 +7,7 @@ bases:
 - ../../base
 
 resources:
-- ingress.yaml
 - database-service.yaml
+
+patchesStrategicMerge:
+  - deployment.yaml

kubernetes/resources_api/overlays/prod/kustomization.yaml

@@ -1,5 +1,5 @@
 
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: resources-api