Dockerizing a GitLab CI/CD Pipeline: Step-by-Step Tutorial

Sure! Here is a step-by-step tutorial on how to dockerize a GitLab CI/CD pipeline:
Step 1: Set up a GitLab repository
– Create a new repository on GitLab or use an existing one.
– Clone the repository to your local machine.
Step 2: Create a Dockerfile
– In the root directory of your repository, create a file named "Dockerfile".
– Open the Dockerfile in a text editor and add the following content:
“`
# Use an official Python runtime as the base image
FROM python:3.8
# Set the working directory in the container
WORKDIR /app
# Copy the requirements file to the working directory
COPY requirements.txt .
# Install the dependencies
RUN pip install –no-cache-dir -r requirements.txt
# Copy the rest of the code to the working directory
COPY . .
# Set the command to run when the container starts
CMD [ "python", "app.py" ]
“`
Step 3: Create a .gitlab-ci.yml file
– In the root directory of your repository, create a file named ".gitlab-ci.yml".
– Open the file in a text editor and add the following content:
“`
stages:
– build
– test
– deploy
build:
stage: build
image: docker:latest
services:
– docker:dind
script:
– docker build -t myapp .
– docker login -u $CI_REGISTRY_USER -p $CI_REGISTRY_PASSWORD $CI_REGISTRY
– docker tag myapp $CI_REGISTRY_IMAGE/myapp:$CI_COMMIT_REF_NAME
– docker push $CI_REGISTRY_IMAGE/myapp:$CI_COMMIT_REF_NAME
test:
stage: test
image: docker:latest
services:
– docker:dind
script:
– docker pull $CI_REGISTRY_IMAGE/myapp:$CI_COMMIT_REF_NAME
– docker run $CI_REGISTRY_IMAGE/myapp:$CI_COMMIT_REF_NAME python -m unittest discover
deploy:
stage: deploy
image: docker:latest
services:
– docker:dind
script:
– docker pull $CI_REGISTRY_IMAGE/myapp:$CI_COMMIT_REF_NAME
– docker run -d -p 80:80 $CI_REGISTRY_IMAGE/myapp:$CI_COMMIT_REF_NAME
“`
Step 4: Commit and push the Dockerfile and .gitlab-ci.yml
– Add the Dockerfile and .gitlab-ci.yml to the repository using the following commands:
“`
git add Dockerfile .gitlab-ci.yml
git commit -m "Add Dockerfile and .gitlab-ci.yml"
git push origin master
“`
Step 5: Set up GitLab CI/CD
– Go to your GitLab repository and navigate to "Settings" > "CI/CD".
– Enable the CI/CD pipeline and save the changes.
That’s it! Your GitLab CI/CD pipeline is now dockerized. Whenever you push changes to your repository, GitLab will automatically build, test, and deploy your application using Docker.
Recent Posts
Categories
- Abstraction
- Acceptance testing
- Access Control
- Access Control Lists (ACL)
- Accessibility testing
- Account Lockout
- Action
- Adapter
- Admin Panel
- Advanced JavaScript
- Advanced React JS techniques and best practices
- Advanced Swift programming techniques
- Advanced Techniques and Best Practices in Ruby on Rails
- Advantages
- Angular js
- AngularJS
- AngularJS Filters
- Appetizers 2. Beverages 3. Breads 4. Breakfast 5. Desserts 6. Main Dishes 7. Salads 8. Side Dishes 9. Soups 10. Vegetarian/Vegan
- Architecture
- Array Methods
- Arrays
- Arrow Functions
- Asynchronous Programming
- Authentication
- Authentication and Authorization
- Authorization
- Basic Concepts
- Best practices in Swift programming
- Bind Mounts
- Block Scope
- Bridge
- Bridge networks
- Caching API Responses
- Calendar Management
- Categories: Database Connection
- Category: Web Development
- Chain of Responsibility
- Classes
- Clickjacking
- Closures
- Code coverage
- Code coverage analysis
- Command
- Commands
- Community Images
- Components
- Components and Props
- Composite
- Conclusion
- Concurrency
- Configuration
- Constant
- Constants
- Contact Management
- Container Networking
- Containerization
- Containers
- Content Management System
- Content Management Systems
- Continuous integration
- Continuous integration and deployment
- Control Structures
- Cost
- Cross-browser testing
- Cross-Site Request Forgery (CSRF)
- Cross-Site Request Forgery (CSRF) Prevention
- Cross-Site Script Inclusion (XSSI)
- Cross-Site Scripting (XSS)
- Cross-Site Scripting (XSS) Prevention
- CSS-based animations
- Custom Hooks
- Custom Images
- Customer Engagement
- Customization and Configuration
- Data collection
- Data Deletion
- Data Import and Export
- Data Insertion
- Data Retrieval
- Data Sanitization
- Data Types
- Data Updating
- Data visualization
- Database Connectivity
- Database Integration
- Debugging
- Decorator
- Default Parameters
- Denial of Service (DoS)
- Dependencies
- Dependency Injection
- Deployment
- Destructuring
- Device drivers
- Docker Images: Base Images
- Docker Swarm
- Dockerizing Your Application: A Step-By-Step Tutorial
- Ease of use
- Email Integration
- Emojis and Stickers
- Encapsulation
- End-to-end testing
- Environment Variables
- Error Handling
- Error Handling and Logging
- ES6 features
- Events
- Exception Handling
- Factory
- Fault tolerance
- Features
- File Handling
- File Inclusion Vulnerabilities
- File manipulation and processing
- File Sharing
- File System
- File systems
- Firewalls
- Flyweight
- For…of Loop
- Form validation
- Friend Requests
- Full-text search 2. Keyword search 3. Filter search 4. Advanced search 5. Autocomplete search 6. Fuzzy search 7. Pagination 8. Sorting 9. Search suggestions 10. Search analytics
- Functional testing
- Functions
- Generators
- Graphical User Interface (GUI)
- Group Chat
- Groups/Communities
- Handling API Responses
- Healthchecks
- Higher Order Functions
- Hoisting
- Host networks
- Images
- Import/Export
- Inheritance
- Input validation
- Insecure Dependencies
- Insecure Direct Object References (IDOR)
- Integration testing
- Integration with other systems
- Interoperability
- Introduction
- Iterator
- Iterators
- JavaScript-based animations
- Kernel architecture
- Key Differences
- Keyframes
- KVM
- Lead Management
- Lexical Scope
- Likes/Comments
- Linux Basics
- Local Volumes
- Logging
- Macvlan networks
- Making API Requests
- Maps
- Mediator
- Memento
- Memory management
- Message Encryption
- Message History
- Message Read Receipts
- Message Search
- Messaging
- Mobile Compatibility
- Mobile testing
- Mocking
- Mocking and stubbing
- Modularity
- Modules
- Monitoring
- Multi-language Support
- Named Volumes
- Network administration
- Network configuration
- Network monitoring
- Network performance optimization
- Network protocols
- Network security
- Network troubleshooting
- Network virtualization
- Networking
- News Feed
- ngAnimate
- None network
- Notifications
- Number Methods
- Object Literal Enhancements
- Object Methods
- Object-Oriented Programming
- Observer
- Official Images
- One category for ES6 Modules is "Importing and Exporting Modules".
- Operating Systems
- Operators
- Opportunity Management
- Orchestration
- Overlay networks
- Package Management
- Pagination
- Password Encryption
- Password Reset
- Payment Gateways
- Paypal
- Performance
- Performance Optimization
- Performance testing
- Permissions
- Photo/Video Sharing
- PHP Basics
- PHP Database Connectivity: Working with MySQL
- Polymorphism
- Ports
- Privacy Settings
- Process management
- Profile Creation
- Provider
- Proxy
- Push Notifications
- QEMU
- Query Execution
- Rate Limiting
- Real-time Messaging
- Recommendations
- Redis
- Reflect
- Regression testing
- Regular Expressions
- Remote Code Execution
- Reporting
- Reporting and Analytics
- Responsive Design
- Rest Parameters
- Role Assignment
- Role Hierarchy
- Role Management
- Role-Based Actions
- Role-Based Views
- Routing
- Sales Management
- Scope
- Search
- Secure Coding Practices
- Secure Communication
- Secure Configuration
- Secure File Handling
- Secure File Uploads
- Secure Password Storage
- Secure Session Management
- Secure Storage
- Security
- Security and Access Control
- Security testing
- Server-Side Request Forgery (SSRF)
- Service
- Services
- Session Hijacking
- Session Management
- Sets
- Simplifying Web Development
- Single Sign-On
- Singleton
- Social Media Authentication
- Spread Operator
- SQL Injection
- SQL Injection Prevention
- State
- Strategy
- Strict Mode
- String Methods
- Strings
- Symbol
- Syntax
- System testing
- Task Management
- Template Literals
- Template Method
- TensorFlow integration
- Test-driven development
- Testing and Debugging
- Testing APIs
- Tips and Tricks
- Transitions
- Troubleshooting
- Tutorials
- Twilio
- Two-Factor Authentication
- Typing Indicators
- Uncategorized
- Understanding Two-Way Data Binding in AngularJS
- Unit testing
- Unvalidated Redirects and Forwards
- Usability testing
- useCallback Hook
- useContext Hook
- useEffect Hook
- useMemo Hook
- User Blocking
- User Management
- User Presence
- User Profiles
- User Roles
- useReducer Hook
- useRef Hook
- useState Hook
- Value
- Variables and Data Types
- VirtualBox
- Visitor
- VMware
- Volumes
- Web Development
- Web frameworks
- Web Scraping
- WebSockets
- Wordpress
- Working with JSON Data
- Working with OAuth
- Working with REST APIs
- Working with SOAP APIs
- Working with XML Data
- Xen
Recent Comments