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Oleksii Shcherbyna

Sleeping face
Oleksii hasn't been on the service for a long time.
But on Freelancehunt, there are also 195 freelancers in category DevOps, who will professionally and timely complete a project of any complexity.

Ukraine Kyiv, Ukraine
1 year back
Available for hire available for hire
on the service 1 year

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Rating
195

Language proficiency level

Українська Українська: fluent
Русский Русский: fluent
English English: intermediate

Portfolio


  • Deploying Spring PetClinic Application using Vagrant

    DevOps
    Create repository on Gitlab and commit all changes to your gitlab repository
    Create a deployment script for the PetClinic application. Use Vagrant to automate the process of creating the infrastructure for the deployment with Virtualbox (preferably). As for provisioning you can choose to use bash, python or ansible in any combination.

    Subtask I - Infrastructure
    Describe two virtual machines using Vagrantfile for deployment of the application (codename APP_VM) and the database (codename DB_VM)
    Preferably use private networking feature for easy VM communication
    VMs should be either Centos or Ubuntu
    If not using private networking then APP_VM should have port 8080 forwarded to host
    Subtask II - Database
    Use any provisioning script that you created to install MySQL and any dependency on DB_VM
    Customize the mysql database to accept connections only from your vagrant private network subnet
    Create a non root user and password (codename DB_USER and DB_PASS) in mysql. Use host environment variable to set these values and pass them to the Vagrantfile using ENV
    Create a database in mysql (codename DB_NAME) and grant all privileges for the DB_USER to access the database
    Subtask III - Application
    Create a non root user (codename APP_USER) that will be used to run the application on APP_VM
    Use any provisioner to install Java JDK, git and any dependency on APP_VM
    Clone this repository to the working folder (codename PROJECT_DIR)
    Use the Maven tool to run tests and package the application. For more info you can use this 5 minutes maven documentation. For convenience the project folder has Maven wrapper script (mvnw) that downloads and executes the required Maven binary automatically.
    If testing and packaging is successful, then get the *.jar package from $PROJECT_DIR/target folder and place it in the APP_USER home folder (codename APP_DIR).
    Set environment variables in APP_VM (preferably use the same environment variables passed from host machine using ENV as in DB_VM):
    DB_HOST - IP of the DB_VM
    DB_PORT - MySql port (default 3306)
    DB_NAME - MySql database name
    DB_USER - MySql user
    DB_PASS - MySql user's password
    Run the application with the APP_USER using the java -jar command
    If everything is successful - you will see the PetClinic application on $APP_VM_IP:8080
  • Deploy GitHub project and Docker in Docker Hub (registry)

    DevOps
    Create a GitHub repository with a Node.js app from forStep2.
    Create account in Docker Hub (free): Docker Hub
    Using Vagrant, create two VMs: one for the Jenkins server and the second for the Jenkins worker.
    Manually or in the Vagrant file, add installation of Docker and Docker Compose on the first VM.
    Manually or using the Vagrant file, add installation of Docker and Jenkins worker directly on the second VM (without Docker).
    Connect the Jenkins worker to the master node. Check that you can run a test pipeline on the Jenkins worker.
    Add credentials with your Docker Hub username and password to Jenkins credentials.
    Create a test pipeline using the Groovy language, which will start when you push to the repository from task 1. The pipeline must:

    Pull the code.
    Build the Docker image on the Jenkins worker.
    Run the Docker image with tests.
    If the tests are successful, log in to your Docker Hub account using Jenkins credentials from step 7 and push the built image to Docker Hub.
    If the tests fail, print the message "Tests failed".

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