DevOps Bootcamp · Lesson

loop_control: label, index & pause

Tame loop output and behavior.

Lesson 4 of 413 steps

loop_control: label, index & pause is a free DevOps Bootcamp lesson on CoddyKit. This is lesson 4 of 4. Any 3 lessons of this learning path are free to read in full — after that, CoddyKit PRO unlocks every lesson, plus hands-on practice with a built-in code editor and a 24/7 AI tutor. It is part of the DevOps Bootcamp learning path, and your progress syncs across the web and the CoddyKit app. The DevOps Bootcamp course includes 4 lessons in total.

Loops Can Get Noisy

When item is a big dictionary, the output dumps the whole thing every iteration. The loop_control keyword tames that mess. 🧹

Add loop_control

Place loop_control beside loop in the same task. It holds options that change how the loop behaves and reports.

- ansible.builtin.user:
    name: "{{ item.name }}"
  loop: "{{ users }}"
  loop_control:
    label: "{{ item.name }}"

label Cleans Output

The label option sets what each iteration prints. Show just item.name instead of the whole dictionary for readable runs.

Rename the Loop Variable

Nested loops both using item collide. The loop_var option renames the variable so an outer and inner loop stay distinct.

loop_control:
  loop_var: user_item

Track Position with index_var

Need the current position? index_var exposes a zero-based counter you can print or use in conditions.

loop_control:
  index_var: idx

Using the Index

Reference your index_var like any variable. It is handy for numbering items or acting only on the first iteration.

- ansible.builtin.debug:
    msg: "{{ idx }}: {{ item }}"
  loop: "{{ servers }}"
  loop_control:
    index_var: idx

Slow It Down with pause

The pause option waits a set number of seconds between iterations, handy when hammering an API or rate-limited service.

loop_control:
  pause: 3

Show Progress with extended

Set extended to true and Ansible adds loop info like ansible_loop.index and ansible_loop.length for richer progress data.

loop_control:
  extended: true

ansible_loop Helpers

With extended on, ansible_loop offers first, last, index and revindex, so you can detect the start or end of a loop easily.

when: ansible_loop.last

Combine Several Options

You can stack options under one loop_control: a custom label, an index_var, and a pause all coexist in the same block.

loop_control:
  label: "{{ item.name }}"
  index_var: idx
  pause: 1

Control, Not Logic

loop_control shapes output and pacing, not the data itself. It makes big loops readable and predictable without changing what they do.

Quick Check

Which loop_control option controls what each iteration prints?

Answer it in the interactive lesson

Recap: Tamed Loops

You used loop_control for clean labels, index tracking, pauses and extended info. You now loop like a pro across any data shape. 🎉

Free to start

Learn DevOps Bootcamp with an AI tutor — free

Write and run real code in your browser, get instant help from a 24/7 AI tutor, and pick up where you left off on the web or in the app.

Courses: 142
Lessons: 568

Start learning free View the full course

Frequently Asked Questions

Is the “loop_control: label, index & pause” lesson free?

Yes — any 3 lessons of the DevOps Bootcamp learning path, including “loop_control: label, index & pause”, are free to read in full here on the web. After that, CoddyKit PRO unlocks every lesson, plus interactive practice with a built-in code editor and a 24/7 AI tutor. The DevOps Bootcamp course includes 4 lessons in total.

What will I learn in “loop_control: label, index & pause”?

Tame loop output and behavior. You practise DevOps Bootcamp with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.

Do I need any experience to start DevOps Bootcamp?

No prior experience is required. DevOps Bootcamp on CoddyKit is structured for beginners through advanced learners, so you can start here or from the beginning and move at your own pace. This is lesson 4 of 4.

How long does the “loop_control: label, index & pause” lesson take?

Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.

Can I write and run code in this DevOps Bootcamp lesson?

Yes. Every DevOps Bootcamp lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.

All lessons in this course

← Back to DevOps Bootcamp