What will you do if multiple teams have common tasks…

I would suggest the following options:

Centralization of common tasks. Identify common tasks and create separate, reusable components or pipelines.
- Example: Create a central repository with shared build, testing, and deployment scripts.

Use of pipeline templates. If the CI system supports templates (e.g., GitLab CI, Jenkins Shared Libraries), implement common tasks as templates.

Example: Create a template for building Docker images or deploying to Kubernetes.

# .gitlab-ci.yml (fragment)
include:
  - project: 'shared/ci-templates' # Path to the template project
    file: '/templates/docker_build.yml' # Include template

build_service:
  extends: .docker_build # Using the template
  variables:
    DOCKER_IMAGE_NAME: my-service

Pipeline composition. Break down complex pipelines into smaller, reusable parts that can be combined.
Implementation of common tools. Define and standardize tools (e.g., linters, formatters, security scanners) to be used by all teams. Configure their centralized execution in CI.
Regular review and refactoring of common pipelines. Conduct periodic analysis of shared components usage and optimize them considering changes in team requirements.
Documentation. Create detailed documentation on the use of shared components and templates.
Team training. Conduct training for teams on the proper use of centralized resources and templates.
Dedicated team or responsibility assignment. In large organizations, assign a team or a responsible person to support and develop shared CI/CD components.

The choice of approach depends on the CI system used, the maturity of DevOps practices in the company, and the scale of the infrastructure. The goal is to reduce code duplication, simplify support, and ensure process consistency.

What will you do if multiple teams have common tasks in CI?