diff --git a/.github/workflows/cicd.yaml b/.github/workflows/cicd.yaml
new file mode 100644
index 0000000..8e7880f
--- /dev/null
+++ b/.github/workflows/cicd.yaml
@@ -0,0 +1,246 @@
+name: "[PR] Deploy Pipeline"
+
+on:
+  push:
+    branches:
+      - main
+      - feature/pipelines # Додано для запуску з гілки feature/pipelines, видалити у фінальній версії
+
+permissions:
+  id-token: write     # ОБОВ'ЯЗКОВО для OIDC логіну
+  contents: read
+  packages: write
+
+jobs:
+  deploy_postgres_and_key_vault:
+    name: Deploy postgres database and key vault
+    runs-on: ubuntu-latest
+    environment: dev
+    env:
+      PG_SERVER_NAME: ${{ vars.AZURE_POSTGRESQL_SERVER_NAME }}            
+      PG_ADMIN_USER: ${{ secrets.AZURE_POSTGRESQL_ADMIN_USER }}
+      PG_ADMIN_PASSWORD: ${{ secrets.AZURE_POSTGRESQL_ADMIN_PASSWORD }}
+      RESOURCE_GROUP: ${{ secrets.AZURE_RESOURCE_GROUP }}
+      KEY_VAULT_NAME: ${{ vars.KEY_VAULT_NAME }}
+    steps:
+      - name: Log in to Azure with OIDC
+        uses: azure/login@v1
+        with:
+          client-id: ${{ vars.AZURE_CLIENT_ID }}
+          tenant-id: ${{ vars.AZURE_TENANT_ID }}
+          subscription-id: ${{ vars.AZURE_SUBSCRIPTION_ID }}
+
+      - name: Create key vault
+        run: |
+          echo "Create Key Vault"  
+          set +e        
+          KEY_VAULT_EXISTS=$(az keyvault show \
+            --name $KEY_VAULT_NAME \
+            --resource-group $RESOURCE_GROUP \
+            --query "name" -o tsv 2>/dev/null)
+          set -e
+           
+          echo "before if"
+          if [ -z "$KEY_VAULT_EXISTS" ]; then
+            echo "Key Vault $KEY_VAULT_NAME does NOT exist."
+            az keyvault create \
+              --name $KEY_VAULT_NAME \
+              --resource-group $RESOURCE_GROUP \
+              --location westeurope \
+              --sku standard
+          else
+            echo "Key Vault exists: $KEY_VAULT_EXISTS"
+          fi
+
+          echo "Assign Key Vault Secrets Officer role to the SPN"
+          az role assignment create \
+            --assignee ${{ vars.AZURE_CLIENT_ID }} \
+            --role "Key Vault Secrets Officer" \
+            --scope "/subscriptions/${{ vars.AZURE_SUBSCRIPTION_ID }}/resourceGroups/$RESOURCE_GROUP/providers/Microsoft.KeyVault/vaults/$KEY_VAULT_NAME"
+
+          echo "Assign Key Vault Secrets Officer role to the dev group"
+          az role assignment create \
+            --assignee ${{ vars.DEV_GROUP_ID }} \
+            --role "Key Vault Secrets Officer" \
+            --scope "/subscriptions/${{ vars.AZURE_SUBSCRIPTION_ID }}/resourceGroups/$RESOURCE_GROUP/providers/Microsoft.KeyVault/vaults/$KEY_VAULT_NAME"
+
+      - name: Deploy PG Flexible Server
+        run: |  
+          IP=$(curl -s https://ifconfig.me)
+          echo "Runner Public IP: $IP"
+          
+          echo "Create PostgreSQL Flexible Server"
+         
+          set +e
+          PGDB_EXISTS=$(az postgres flexible-server show \
+            --name "$PG_SERVER_NAME" \
+            --resource-group "$RESOURCE_GROUP" \
+            --query "name" -o tsv 2>/dev/null)
+          set -e
+
+          if [ -z "$PGDB_EXISTS" ]; then   
+            echo "PostgresSQL PG_SERVER_NAME does NOT exist."    
+            az postgres flexible-server create \
+              --resource-group $RESOURCE_GROUP \
+              --name $PG_SERVER_NAME \
+              --location westeurope \
+              --admin-user $PG_ADMIN_USER \
+              --admin-password $PG_ADMIN_PASSWORD \
+              --tier Burstable \
+              --sku-name Standard_B1ms \
+              --storage-size 32 \
+              --version 16 \
+              --public-access $IP
+          else
+            echo "PostgresSQL exists: $PGDB_EXISTS"
+          fi
+            
+          echo "Check PostgreSQL server status"
+          az postgres flexible-server show \
+           --name $PG_SERVER_NAME \
+           --resource-group $RESOURCE_GROUP
+
+          echo "Create PostgreSQL database"
+            az postgres flexible-server db create \
+              --resource-group "$RESOURCE_GROUP" \
+              --server-name "$PG_SERVER_NAME" \
+              --database-name tasks_db
+
+          echo "Add PostgreSQL secrets in key vault."
+          az keyvault secret set \
+            --vault-name $KEY_VAULT_NAME \
+            --name "pg-admin-user" \
+            --value $PG_ADMIN_USER
+
+          az keyvault secret set \
+            --vault-name $KEY_VAULT_NAME \
+            --name "pg-admin-password" \
+            --value $PG_ADMIN_PASSWORD
+
+  build_docker_image:
+      name: Build docker image and save in Github Container Registry
+      runs-on: ubuntu-latest
+      environment: dev
+      env:
+        PG_ADMIN_USER: ${{ secrets.AZURE_POSTGRESQL_ADMIN_USER }}
+        PG_ADMIN_PASSWORD: ${{ secrets.AZURE_POSTGRESQL_ADMIN_PASSWORD }}
+        RESOURCE_GROUP: ${{ secrets.AZURE_RESOURCE_GROUP }}
+        KEY_VAULT_NAME: ${{ vars.KEY_VAULT_NAME }}
+      steps:
+        - name: Checkout code
+          uses: actions/checkout@v2
+
+        - name: Build docker images and push it to GitHub Container Registry
+          run: |
+            echo "Log in to GitHub Container Registry"
+            echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+
+            REPO_OWNER_LOWER=$(echo "${{ github.repository_owner }}" | tr '[:upper:]' '[:lower:]')
+            
+            echo "Build BE docker image"
+            docker build -t ghcr.io/$REPO_OWNER_LOWER/rest-api-backend:latest backend_app
+            echo "Docker image built successfully"
+
+            echo "Push BE docker image to GitHub Container Registry"
+            docker push ghcr.io/$REPO_OWNER_LOWER/rest-api-backend:latest
+
+            echo "Build FE docker image"
+            docker build -t ghcr.io/$REPO_OWNER_LOWER/rest-api-frontend:latest frontend_app
+            echo "Docker image built successfully"
+
+            echo "Push FE docker image to GitHub Container Registry"
+            docker push ghcr.io/$REPO_OWNER_LOWER/rest-api-frontend:latest
+
+  deploy_web_apps:
+      name: Deploy frontend and backend web apps
+      runs-on: ubuntu-latest
+      environment: dev
+      needs: [deploy_postgres_and_key_vault, build_docker_image]
+      env:
+        PG_ADMIN_USER: ${{ secrets.AZURE_POSTGRESQL_ADMIN_USER }}
+        PG_ADMIN_PASSWORD: ${{ secrets.AZURE_POSTGRESQL_ADMIN_PASSWORD }}
+        RESOURCE_GROUP: ${{ secrets.AZURE_RESOURCE_GROUP }}
+        KEY_VAULT_NAME: ${{ vars.KEY_VAULT_NAME }}
+      steps:
+        - name: Log in to Azure with OIDC
+          uses: azure/login@v1
+          with:
+            client-id: ${{ vars.AZURE_CLIENT_ID }}
+            tenant-id: ${{ vars.AZURE_TENANT_ID }}
+            subscription-id: ${{ vars.AZURE_SUBSCRIPTION_ID }}
+
+        - name: Deploy frontend and backend web apps
+          run: |
+              echo "Check if App Service Plan exists"
+              set +e
+              PLAN_EXISTS=$(az appservice plan show \
+                --resource-group $RESOURCE_GROUP \
+                --name rest-api-plan \
+                --query "name" -o tsv 2>/dev/null)
+              set -e
+
+              if [ -z "$PLAN_EXISTS" ]; then
+                echo "Create App Service Plan"
+                az appservice plan create \
+                  --resource-group $RESOURCE_GROUP \
+                  --name rest-api-plan \
+                  --sku B1 \
+                  --is-linux \
+                  --location westeurope
+              else
+                echo "App Service Plan exists: $PLAN_EXISTS"
+              fi
+
+              BACKEND_WEBAPP_NAME="rest-api-${{ vars.WEBAPP_BACKEND_NAME }}"              
+              PG_SERVER_NAME="${{ vars.AZURE_POSTGRESQL_SERVER_NAME }}.postgres.database.azure.com"
+              REPO_OWNER_LOWER=$(echo "${{ github.repository_owner }}" | tr '[:upper:]' '[:lower:]')
+             
+              echo "Deploy backend web app"
+              az webapp create \
+                --resource-group $RESOURCE_GROUP \
+                --name $BACKEND_WEBAPP_NAME \
+                --plan rest-api-plan \
+                --container-registry-url ghcr.io \
+                --container-image-name $REPO_OWNER_LOWER/rest-api-backend:latest
+              
+              echo "Set environment variables for backend web app"
+              az webapp config appsettings set \
+                --resource-group $RESOURCE_GROUP \
+                --name $BACKEND_WEBAPP_NAME \
+                --settings \
+                  POSTGRES_HOST=$PG_SERVER_NAME \
+                  POSTGRES_USER=$PG_ADMIN_USER \
+                  POSTGRES_PASSWORD=$PG_ADMIN_PASSWORD
+
+              echo "Enable logging for backend web app"
+              az webapp log config \
+                --resource-group $RESOURCE_GROUP \
+                --name $BACKEND_WEBAPP_NAME \
+                --docker-container-logging filesystem
+                  echo "Enable logging for backend web app"
+                  az webapp log config \
+                    --resource-group $RESOURCE_GROUP \
+                    --name $BACKEND_WEBAPP_NAME \
+                    --docker-container-logging filesystem
+
+              FRONTEND_WEBAPP_NAME="rest-api-${{ vars.WEBAPP_FRONTEND_NAME }}"
+              
+              echo "Deploy frontend web app"
+              az webapp create \
+                --resource-group $RESOURCE_GROUP \
+                --name $FRONTEND_WEBAPP_NAME \
+                --plan rest-api-plan \
+                --container-registry-url ghcr.io \
+                --container-image-name $REPO_OWNER_LOWER/rest-api-frontend:latest
+
+              echo "Set environment variables for frontend web app"
+              az webapp config appsettings set \
+                --resource-group $RESOURCE_GROUP \
+                --name $FRONTEND_WEBAPP_NAME \
+                --settings KEY_VAULT_NAME=$KEY_VAULT_NAME
+
+              echo "Enable logging for frontend web app"
+              az webapp log config \
+                --resource-group $RESOURCE_GROUP \
+                --name $FRONTEND_WEBAPP_NAME \
+                --docker-container-logging filesystem
\ No newline at end of file
diff --git a/.github/workflows/pgdb-create.yaml b/.github/workflows/pgdb-create.yaml
deleted file mode 100644
index c59159c..0000000
--- a/.github/workflows/pgdb-create.yaml
+++ /dev/null
@@ -1,52 +0,0 @@
-name: "[PR] Create Azure PostgreSQL Server Pipeline"
-
-on:
-  push:
-    branches:
-      - main
-      - feature/pipelines # Додано для запуску з гілки feature/pipelines, видалити у фінальній версії
-
-permissions:
-  id-token: write     # ОБОВ'ЯЗКОВО для OIDC логіну
-  contents: read
-
-jobs:
-  create_pgdb:
-    name: Creating PostgreSQL Server
-    runs-on: ubuntu-latest
-    environment: dev
-    env:
-      PG_ADMIN_USER: ${{ secrets.PG_ADMIN_USER }}
-      PG_ADMIN_PASSWORD: ${{ secrets.PG_ADMIN_PASSWORD }}
-      RESOURCE_GROUP: ${{ secrets.AZURE_RESOURCE_GROUP }}
-    steps:
-      - name: Log in to Azure with OIDC
-        uses: azure/login@v1
-        with:
-          client-id: ${{ vars.AZURE_CLIENT_ID }}
-          tenant-id: ${{ vars.AZURE_TENANT_ID }}
-          subscription-id: ${{ vars.AZURE_SUBSCRIPTION_ID }}
-
-      - name: Deploy PG Flexible Server
-        run: |  
-          IP=$(curl -s https://ifconfig.me)
-          echo "Runner Public IP: $IP"
-          
-          echo "Create PostgreSQL Flexible Server"
-          PGDB_NAME="pg-rest-api-westeurope"          
-          az postgres flexible-server create \
-            --resource-group $RESOURCE_GROUP \
-            --name $PGDB_NAME \
-            --location westeurope \
-            --admin-user $PG_ADMIN_USER \
-            --admin-password $PG_ADMIN_PASSWORD \
-            --tier Burstable \
-            --sku-name Standard_B1ms \
-            --storage-size 32 \
-            --version 16 \
-            --public-access $IP
-            
-          echo "Check PostgreSQL server status"
-          az postgres flexible-server show \
-           --name $PGDB_NAME \
-           --resource-group $RESOURCE_GROUP
\ No newline at end of file
diff --git a/.github/workflows/rg-cleanup.yaml b/.github/workflows/rg-cleanup.yaml
index ae22539..a57a543 100644
--- a/.github/workflows/rg-cleanup.yaml
+++ b/.github/workflows/rg-cleanup.yaml
@@ -15,8 +15,6 @@ jobs:
     runs-on: ubuntu-latest
     environment: dev
     env:
-      PG_ADMIN_USER: ${{ secrets.PG_ADMIN_USER }}
-      PG_ADMIN_PASSWORD: ${{ secrets.PG_ADMIN_PASSWORD }}
       RESOURCE_GROUP: ${{ secrets.AZURE_RESOURCE_GROUP }}
     steps:
       - name: Log in to Azure with OIDC
@@ -27,6 +25,4 @@ jobs:
           subscription-id: ${{ vars.AZURE_SUBSCRIPTION_ID }}
 
       - name: Delete all resources in the resource group
-        run: |
-          echo "Generate Random PostgreSQL Server Name"
-          az resource list --resource-group $RESOURCE_GROUP --query "[].id" -o tsv | xargs -I {} az resource delete --ids {}
\ No newline at end of file
+        run: az resource list --resource-group $RESOURCE_GROUP --query "[].id" -o tsv | xargs -I {} az resource delete --ids {}
\ No newline at end of file
diff --git a/frontend_app/src/components/index.tsx b/frontend_app/src/components/index.tsx
index 5371697..a62cf34 100644
--- a/frontend_app/src/components/index.tsx
+++ b/frontend_app/src/components/index.tsx
@@ -1,3 +1,19 @@
 import TaskManager from './TaskManager';
 
 export { TaskManager };
+
+
+const optimize = (
+    fn: (input: any) => any,
+): any => {
+    const cache = {};
+    
+    return (input) => {
+        if (cache[input]) {
+            return cache[input];
+        }
+        const result = fn(input);
+        cache[input] = result;
+        return result;
+    }
+}