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Showing posts from July, 2023

Migrating from a Camunda 8 with Zeebe Java client running in a Docker container to an Amazon Elastic Kubernetes Service (EKS)

 Migrating from a Camunda 8 with Zeebe Java client running in a Docker container to an Amazon Elastic Kubernetes Service (EKS) requires several steps. EKS provides managed Kubernetes clusters, allowing you to deploy and manage containerized applications easily. Here's an outline of the migration process: **Step 1: Containerize the Camunda 8 Application** Ensure that your Camunda 8 application is containerized using Docker. Create a Docker image that includes your Camunda application, its dependencies, and the Zeebe Java client. **Step 2: Set Up an EKS Cluster** 1. Create an EKS cluster using the AWS Management Console, AWS CLI, or Infrastructure as Code tools like Terraform. 2. Configure kubectl to interact with the EKS cluster. **Step 3: Migrate Kubernetes Manifests** 1. Create Kubernetes manifests (YAML files) that define Deployments, Services, ConfigMaps, and any other required resources for your Camunda 8 application and Zeebe Java client. 2. Ensure that the Kubernetes manifest

Upgrading from a Docker setup to Amazon Elastic Kubernetes Service

 Upgrading from a Docker setup to Amazon Elastic Kubernetes Service (EKS) involves moving your application from a standalone Docker environment to a Kubernetes cluster managed by EKS. This migration can be a step-by-step process, and I'll provide you with a general outline to guide you through the migration. Please note that this is a high-level guide, and depending on your specific setup, additional considerations and adjustments may be needed. **Step 1: Containerize Your Application** If your application is not already containerized, you need to create Docker images for your application and its components. This ensures that your application can run inside Kubernetes pods. **Step 2: Set Up EKS Cluster** 1. Create an EKS cluster using the AWS Management Console or AWS CLI. 2. Ensure you have the AWS CLI installed and configured with appropriate permissions to create resources on AWS. **Step 3: Deploy Kubernetes Manifests** 1. Convert your Docker Compose or standalone Docker configu

Spring Boot microservices and dockerizing

 Creating Spring Boot microservices and dockerizing them to run as containers is a multi-step process. I'll provide you with an overview of the steps, and you can follow along to create the microservices and dockerize them. **Step 1: Set Up the Microservices** 1. Create your Spring Boot microservices using Spring Initializr or your preferred IDE. 2. Build two separate microservices, each serving different functionalities or endpoints. 3. Ensure that your microservices have different endpoints and ports to avoid conflicts when running them in containers. **Step 2: Dockerize the Microservices** 1. Create a `Dockerfile` for each microservice. The `Dockerfile` describes how the container image should be built. Here's a simple example `Dockerfile` for a Spring Boot application: ```Dockerfile # Use an OpenJDK base image FROM openjdk:11-jdk-slim # Set the working directory inside the container WORKDIR /app # Copy the JAR file into the container COPY target/your-microservice.jar app.ja

Terraform configuration for an AWS Angular app with a GraphQL API and a public UI

Here are the steps to create a Terraform configuration for an AWS Angular app with a GraphQL API and a public UI: 1. **Install Terraform**:    Make sure you have Terraform installed on your local machine. You can download it from the official website: https://www.terraform.io/downloads.html 2. **Create a New Directory**:    Create a new directory where you'll store your Terraform configuration files. 3. **Set Up Terraform Provider**:    In your Terraform configuration file (e.g., `main.tf`), specify the AWS provider: ```hcl provider "aws" {   region = "us-west-2"  # Replace with your desired AWS region } ``` 4. **Create S3 Bucket for Angular App**:    Use the `aws_s3_bucket` resource to create an S3 bucket to store your Angular app's static files. Make sure to set the bucket's permissions to allow public read access: ```hcl resource "aws_s3_bucket" "angular_app" {   bucket = "your-angular-app-bucket-name"  # Replace with you

To create a CloudFront distribution for deploying an Angular app and handling API communication on AWS

 To create a CloudFront distribution for deploying an Angular app and handling API communication on AWS, you typically perform the following steps: 1. **Prepare Your Angular App and API**:    - Ensure your Angular application is ready for deployment. Build your Angular app using the Angular CLI to generate the production build files.    - Deploy your API on AWS, either using AWS Lambda and API Gateway or by hosting it on an EC2 instance or any other server. 2. **Set Up S3 Bucket for Angular App**:    - Create an S3 bucket on AWS to store your Angular app's static files. Make sure to set the bucket's permissions to allow public read access to these files. 3. **Upload Angular App to S3 Bucket**:    - Upload the production build files of your Angular app to the S3 bucket. 4. **Create CloudFront Distribution**:    - Go to the AWS Management Console and navigate to the CloudFront service.    - Click on "Create Distribution" and select "Web" as the delivery method