PostgreSQL integration

Makefile

@@ -184,11 +184,12 @@ build: manifests generate fmt vet ## Build manager binary.
 	go build -o bin/manager cmd/main.go
 
 LIGHTSPEED_SERVICE_IMG ?= quay.io/openshift-lightspeed/lightspeed-service-api:latest
+LIGHTSPEED_SERVICE_POSTGRES_IMG ?= registry.redhat.io/rhel9/postgresql-16@sha256:0d52a138698bf42dbbf5b9e4f35f4925b6155eef9f447e436c6db1a7ae304239
 CONSOLE_PLUGIN_IMG ?= quay.io/openshift-lightspeed/lightspeed-console-plugin:latest
 .PHONY: run
 run: manifests generate fmt vet ## Run a controller from your host.
     #TODO: Update DB
-	go run ./cmd/main.go --service-image="$(LIGHTSPEED_SERVICE_IMG)" --console-image="$(CONSOLE_PLUGIN_IMG)"
+	go run ./cmd/main.go --service-image="$(LIGHTSPEED_SERVICE_IMG)" --postgres-image="$(LIGHTSPEED_SERVICE_POSTGRES_IMG)" --console-image="$(CONSOLE_PLUGIN_IMG)"
 
 # If you wish built the manager image targeting other platforms you can use the --platform flag.
 # (i.e. docker build --platform linux/arm64 ). However, you must enable docker buildKit for it.

README.md

@@ -122,10 +122,10 @@ spec:
       url: "https://myendpoint.openai.azure.com/"
   ols:
     conversationCache:
-      redis:
-        maxMemory: 2000mb
-        maxMemoryPolicy: allkeys-lru
-      type: redis
+      postgres:
+        sharedBuffers: 256MB
+        maxConnections: 2000
+      type: postgres
     defaultModel: gpt-3.5-turbo
     defaultProvider: openai
     logLevel: INFO
@@ -187,22 +187,25 @@ openshift-service-ca.crt    1      33m
 
 ➜ oc get services -n openshift-lightspeed
 NAME                                                     TYPE        CLUSTER-IP       EXTERNAL-IP   PORT(S)    AGE
-lightspeed-app-server                                     ClusterIP   172.31.165.151   <none>        8443/TCP   22m
-lightspeed-console-plugin                                 ClusterIP   172.31.158.29    <none>        9443/TCP   29m
-lightspeed-operator-controller-manager-service            ClusterIP   172.31.63.140    <none>        8443/TCP   24m
+lightspeed-app-server                                    ClusterIP   172.30.176.179   <none>        8080/TCP   4m47s
+lightspeed-postgres-server                               ClusterIP   172.30.85.42     <none>        6379/TCP   4m47s
+lightspeed-operator-controller-manager-metrics-service   ClusterIP   172.30.35.253    <none>        8443/TCP   4m47s
+lightspeed-console-plugin                                ClusterIP   172.31.158.29    <none>        9443/TCP   29m
+lightspeed-operator-controller-manager-service           ClusterIP   172.31.63.140    <none>        8443/TCP   24m
 
 ➜ oc get deployments -n openshift-lightspeed
 NAME                                     READY   UP-TO-DATE   AVAILABLE   AGE
-lightspeed-app-server                    1/1     1            1           23m
+lightspeed-app-server                    1/1     1            1           7m5s
+lightspeed-postgres-server                  1/1     1            1           7m5s
+lightspeed-operator-controller-manager   1/1     1            1           2d15h
 lightspeed-console-plugin                2/2     2            2           30m
-lightspeed-operator-controller-manager   1/1     1            1           25m
 
 ➜ oc get pods -n openshift-lightspeed
 NAME                                                      READY   STATUS              RESTARTS      AGE
+lightspeed-operator-controller-manager-7c849865ff-9vwj9   2/2     Running             0             7m19s
+lightspeed-postgres-server-7b75497676-np7zk               1/1     Running             0             6m47s
 lightspeed-app-server-97c9c6d96-6tv6j                     2/2     Running                0          23m
-lilightspeed-console-plugin-7f6cd7c9fd-6lp7x              1/1     Running                0          30m
 lightspeed-console-plugin-7f6cd7c9fd-wctj8                1/1     Running                0          30m
-lightspeed-operator-controller-manager-69585cc7fc-xltpc   1/1     Running                0          26m
 
 ➜ oc logs lightspeed-app-server-f7fd6cf6-k7s7p -n openshift-lightspeed
 2024-02-02 12:00:06,982 [ols.app.main:main.py:29] INFO: Embedded Gradio UI is disabled. To enable set enable_dev_ui: true in the dev section of the configuration file
@@ -212,6 +215,17 @@ INFO:     Application startup complete.
 INFO:     Uvicorn running on http://0.0.0.0:8080 (Press CTRL+C to quit)
 ```
 
+#### Postgres Secret Management
+By default postgres server spins up with a randomly generated password located in the secret `lightspeed-postgres-secret`. One can go edit password their password to a desired value to get it reflected across the system. In addition to that postgres secret name can also be explicitly specified in cluster CR as shown in the below example.
+```
+conversationCache:
+  postgres:
+    sharedBuffers: "256MB"
+    maxConnections: 2000
+    credentialsSecret: xyz
+  type: postgres
+```
+
 ### Modifying the API definitions
 
 If you have updated the API definitions, you must update the CRD manifests with the following command
@@ -255,7 +269,7 @@ When using Visual Studio Code, we can use the debugger settings below to execute
 
 ### End to End tests
 
-To run the end to end tests with a Openshift cluster, we need to have a running operator in the namespace `openshift-lightspeed`.
+To run the end to end tests with a OpenShift cluster, we need to have a running operator in the namespace `openshift-lightspeed`.
 Please refer to the section [Running on the cluster](#running-on-the-cluster).
 Then we should set 2 environment variables:
 

api/v1alpha1/olsconfig_types.go

@@ -20,7 +20,6 @@ import (
 	configv1 "github.com/openshift/api/config/v1"
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
-	"k8s.io/apimachinery/pkg/util/intstr"
 )
 
 // EDIT THIS FILE!  THIS IS SCAFFOLDING FOR YOU TO OWN!
@@ -145,39 +144,41 @@ type ConsoleContainerConfig struct {
 	CAcertificate string `json:"caCertificate,omitempty"`
 }
 
-// +kubebuilder:validation:Enum=redis
+// +kubebuilder:validation:Enum=postgres
 type CacheType string
 
 const (
-	Redis CacheType = "redis"
+	Postgres CacheType = "postgres"
 )
 
 // ConversationCacheSpec defines the desired state of OLS conversation cache.
 type ConversationCacheSpec struct {
-	// Conversation cache type. Default: "redis"
-	// +kubebuilder:default=redis
+	// Conversation cache type. Default: "postgres"
+	// +kubebuilder:default=postgres
 	// +operator-sdk:csv:customresourcedefinitions:type=spec,displayName="Cache Type"
 	Type CacheType `json:"type,omitempty"`
 	// +optional
-	// +operator-sdk:csv:customresourcedefinitions:type=spec,displayName="Redis"
-	Redis RedisSpec `json:"redis,omitempty"`
+	Postgres PostgresSpec `json:"postgres,omitempty"`
 }
 
-// RedisSpec defines the desired state of Redis.
-type RedisSpec struct {
-	// Secret that holds redis credentials
-	// +kubebuilder:default="lightspeed-redis-secret"
-	// +operator-sdk:csv:customresourcedefinitions:type=spec,displayName="Credentials secret"
+// PostgresSpec defines the desired state of Postgres.
+type PostgresSpec struct {
+	// Postgres user name
+	// +kubebuilder:default="postgres"
+	User string `json:"user,omitempty"`
+	// Postgres database name
+	// +kubebuilder:default="postgres"
+	DbName string `json:"dbName,omitempty"`
+	// Secret that holds postgres credentials
+	// +kubebuilder:default="lightspeed-postgres-secret"
 	CredentialsSecret string `json:"credentialsSecret,omitempty"`
-	// Redis maxmemory
+	// Postgres sharedbuffers
 	// +kubebuilder:validation:XIntOrString
-	// +kubebuilder:default="1024mb"
-	// +operator-sdk:csv:customresourcedefinitions:type=spec,displayName="Max Memory"
-	MaxMemory *intstr.IntOrString `json:"maxMemory,omitempty"`
-	// Redis maxmemory policy. Default: "allkeys-lru"
-	// +kubebuilder:default=allkeys-lru
-	// +operator-sdk:csv:customresourcedefinitions:type=spec,displayName="Max Memory Policy"
-	MaxMemoryPolicy string `json:"maxMemoryPolicy,omitempty"`
+	// +kubebuilder:default="256MB"
+	SharedBuffers string `json:"sharedBuffers,omitempty"`
+	// Postgres maxconnections. Default: "2000"
+	// +kubebuilder:default=2000
+	MaxConnections int `json:"maxConnections,omitempty"`
 }
 
 // QueryFiltersSpec defines filters to manipulate questions/queries.

bundle/manifests/lightspeed-operator.clusterserviceversion.yaml

@@ -127,18 +127,27 @@ spec:
             path: ols.additionalCAConfigMapRef
             x-descriptors:
               - urn:alm:descriptor:com.tectonic.ui:advanced
-          - displayName: Redis
-            path: ols.conversationCache.redis
-          - description: Secret that holds redis credentials
+          - displayName: Postgres
+            path: ols.conversationCache.postgres
+          - description: Secret that holds Postgres credentials
             displayName: Credentials secret
-            path: ols.conversationCache.redis.credentialsSecret
-          - description: Redis maxmemory
-            displayName: Max Memory
-            path: ols.conversationCache.redis.maxMemory
-          - description: 'Redis maxmemory policy. Default: "allkeys-lru"'
-            displayName: Max Memory Policy
-            path: ols.conversationCache.redis.maxMemoryPolicy
-          - description: 'Conversation cache type. Default: "redis"'
+            path: ols.conversationCache.postgres.credentialsSecret
+          - description: Postgres database name
+            displayName: Database name
+            path: ols.conversationCache.postgres.dbName
+          - description: Postgres max connections
+            displayName: Max connections
+            path: ols.conversationCache.postgres.maxConnections
+          - description: Postgres max connections
+            displayName: Max connections
+            path: ols.conversationCache.postgres.maxConnections
+          - description: Postgres shared buffers
+            displayName: Shared buffers
+            path: ols.conversationCache.postgres.sharedBuffers
+          - description: Postgres user name
+            displayName: User name
+            path: ols.conversationCache.postgres.user
+          - description: 'Conversation cache type. Default: "postgres"'
             displayName: Cache Type
             path: ols.conversationCache.type
           - description: Default model for usage
@@ -503,6 +512,7 @@ spec:
               verbs:
                 - create
                 - delete
+                - deletecollection
                 - get
                 - list
                 - patch

bundle/manifests/ols.openshift.io_olsconfigs.yaml

@@ -412,30 +412,36 @@ spec:
                   conversationCache:
                     description: Conversation cache settings
                     properties:
-                      redis:
-                        description: RedisSpec defines the desired state of Redis.
+                      postgres:
+                        description: PostgresSpec defines the desired state of Postgres.
                         properties:
                           credentialsSecret:
-                            default: lightspeed-redis-secret
-                            description: Secret that holds redis credentials
+                            default: lightspeed-postgres-secret
+                            description: Secret that holds postgres credentials
+                            type: string
+                          dbName:
+                            default: postgres
+                            description: Postgres database name
+                            type: string
+                          maxConnections:
+                            default: 2000
+                            description: 'Postgres maxconnections. Default: "2000"'
+                            type: integer
+                          sharedBuffers:
+                            default: 256MB
+                            description: Postgres sharedbuffers
                             type: string
-                          maxMemory:
-                            anyOf:
-                            - type: integer
-                            - type: string
-                            default: 1024mb
-                            description: Redis maxmemory
                             x-kubernetes-int-or-string: true
-                          maxMemoryPolicy:
-                            default: allkeys-lru
-                            description: 'Redis maxmemory policy. Default: "allkeys-lru"'
+                          user:
+                            default: postgres
+                            description: Postgres user name
                             type: string
                         type: object
                       type:
-                        default: redis
-                        description: 'Conversation cache type. Default: "redis"'
+                        default: postgres
+                        description: 'Conversation cache type. Default: "postgres"'
                         enum:
-                        - redis
+                        - postgres
                         type: string
                     type: object
                   defaultModel: