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Photo by Jens Freudenau on Unsplash

Continuous Integration and Continuous Delivery (or Deployment) - better known as CI/CD Pipelines - is a pillar of modern software teams. Although it may sound like another buzzword, it’s actually about something very practical: automating the way code moves from your local enviroment to production.

Regardless of stack or project size, CI/CD helps answer key questions:

• How can we merge code frequently without breaking things?
• How do we release faster, but with less risk?

In this article we’ll break down the concepts and set up a simple pipeline using GitHub Actions. To illustrate, we’ll use a simple J

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Onboarding GLS - July/2025

• Access M365
• Access Slack through the M365 account
• Request access through ConductorOne, within M365 apps:
  • 1Password, Arda Dev, Arda staging, Argo*, Datadog, Figma, Linear, Modern Treasury, Whimsical
    • if Argo doesn't appear, talk to @gui, @chris or @gabe. You'll likely need to be added to the Outlook group
• Sign to 1Password using email invitation
  • Install chrome extension
• Install desktop application

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name: Publish Docker image to Docker Hub

on:
  pull_request: {}

env:
  DOCKER_USERNAME: ${{ secrets.DOCKER_USERNAME }}
  DOCKER_TOKEN: ${{ secrets.DOCKER_TOKEN}}
  DOCKER_HUB_REGISTRY: fernandollisboa/checkout-captacao
  DOCKER_IMAGE: checkout-captacao

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# syntax=docker/dockerfile:1
FROM ruby:3.3.0

# Install nodejs
ENV NODE_VERSION 18.19.0
RUN ARCH=$(uname -m) \
    && if [ "$ARCH" = "aarch64" ]; then \
         NODE_PACKAGE_URL="https://nodejs.org/dist/v${NODE_VERSION}/node-v${NODE_VERSION}-linux-arm64.tar.xz"; \
       else \
         NODE_PACKAGE_URL="https://nodejs.org/dist/v${NODE_VERSION}/node-v${NODE_VERSION}-linux-x64.tar.xz"; \

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{
  "id": "or_wZm04dxFkFL4nz6v",
  "code": "EWPOIXI493",
  "amount": 500000,
  "currency": "BRL",
  "closed": true,
  "items": [
    {
      "id": "oi_KeGjYRrCQCPY4bJZ",
      "type": "product",

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Create Rails Project

1. Run rails new

   rails new [name] --api -T

2. Copy your Gemfile
3. Copy your .gitignore
4. Copy your .rubocop.yml
5. Install Rspec

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describe('catalog promotions', () => {
  beforeEach(() => {
    const credentials = ['sylius', 'sylius'];
    cy.login(...credentials);
    cy.clickInFirst('a[href="/admin/catalog-promotions/"]');
  });
  // Remove .only and implement others test cases!
  it('shows of especify catalog promotion exposes the correct product and discount', () => {
    // Select inactive promotions in search tab
    cy.get('[id="criteria_state"]').select('Inactive');