Sample YAML File Download — Free DevOps Config Examples
Download free YAML config file examples from 1KB to 500KB — Docker Compose, Kubernetes manifests, GitHub Actions CI/CD workflows, and deeply nested structures with anchors. Use these YAML test files for parser validation, DevOps pipeline testing, and config management tools.
Generate custom YAML fileCreate up to 1GB locally in your browsersample-1kb.yaml
1 KB
30 lines
File details and verification
- Filename
- sample-1kb.yaml
- Exact size
- 1,024 bytes
- Displayed size
- 1 KB
- Catalog status
- Valid catalog fixture
- SHA-256
- 2e383ce376f7cdea9bc326b12d679a226657fff5a9e1f99cda389caa956f5863
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Lines
- 30
- Note
- simple-config
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/yaml/sample-1kb.yaml
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-10kb.yaml
10 KB
300 lines
File details and verification
- Filename
- sample-10kb.yaml
- Exact size
- 10,240 bytes
- Displayed size
- 10 KB
- Catalog status
- Valid catalog fixture
- SHA-256
- 7f517994057ae9a52d3e781abec15f81e01aefc0cb89ca85603a584d057788bb
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Lines
- 300
- Note
- docker-compose-style
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/yaml/sample-10kb.yaml
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-50kb.yaml
50 KB
1,500 lines
File details and verification
- Filename
- sample-50kb.yaml
- Exact size
- 51,200 bytes
- Displayed size
- 50 KB
- Catalog status
- Valid catalog fixture
- SHA-256
- 6c084b23aef2619cd6cd6bc7413790fe16f62b581501d3834101f0f76ce2adb1
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Lines
- 1,500
- Note
- kubernetes-manifest-style
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/yaml/sample-50kb.yaml
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-100kb.yaml
100 KB
3,000 lines
File details and verification
- Filename
- sample-100kb.yaml
- Exact size
- 102,400 bytes
- Displayed size
- 100 KB
- Catalog status
- Valid catalog fixture
- SHA-256
- 60e8c2ec951605671e1df124fd7f28552ef8d1e0c4a0a219353a183b41f35793
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Lines
- 3,000
- Note
- nested-deep
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/yaml/sample-100kb.yaml
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-500kb.yaml
500 KB
15,000 lines
File details and verification
- Filename
- sample-500kb.yaml
- Exact size
- 512,000 bytes
- Displayed size
- 500 KB
- Catalog status
- Valid catalog fixture
- SHA-256
- 81b89847b605352203f55475ef2716d5570b265b75a2f0154cffed33d95b1619
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Lines
- 15,000
- Note
- with-anchors
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/yaml/sample-500kb.yaml
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-docker-compose.yaml
897 B
90 lines
File details and verification
- Filename
- sample-docker-compose.yaml
- Exact size
- 897 bytes
- Displayed size
- 897 B
- Catalog status
- Valid catalog fixture
- SHA-256
- 7d58397907b9c53ae805298023efd05a57a79dd90af5620cb4c774b2977002f1
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Lines
- 90
- Note
- docker-compose
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/yaml/sample-docker-compose.yaml
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-k8s-deployment.yaml
1.1 KB
60 lines
File details and verification
- Filename
- sample-k8s-deployment.yaml
- Exact size
- 1,133 bytes
- Displayed size
- 1.1 KB
- Catalog status
- Valid catalog fixture
- SHA-256
- 10dfa4b8a02539aa45736612ac3a178ca53510fc028a81aa09a0657a358f6649
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Lines
- 60
- Note
- kubernetes-deployment
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/yaml/sample-k8s-deployment.yaml
See how TrueFileSize generates and measures sample files, or review the editorial policy.
sample-github-actions.yaml
1.2 KB
75 lines
File details and verification
- Filename
- sample-github-actions.yaml
- Exact size
- 1,189 bytes
- Displayed size
- 1.2 KB
- Catalog status
- Valid catalog fixture
- SHA-256
- 1601635e850e487a0762356f39ef023c36f5a4a5dae682c70e49497678c9d0b8
- Header signature
- Not applicable (no stable header signature for this format)
- Verified on
- 2026-08-10
- MIME type
- application/octet-stream
- Lines
- 75
- Note
- ci-cd-pipeline
- License
- CC0 / Public Domain
- Download URL
- https://cdn.truefilesize.com/yaml/sample-github-actions.yaml
See how TrueFileSize generates and measures sample files, or review the editorial policy.
Use cases for sample YAML files
- Testing YAML parsers (js-yaml, PyYAML, ruamel.yaml)
- Validating Docker Compose and Kubernetes configs
- Testing GitHub Actions / GitLab CI workflow parsing
- Benchmarking YAML vs JSON vs TOML parsing performance
- Testing YAML linters and schema validators
- Verifying anchor/alias expansion in YAML processors
YAML vs JSON vs TOML for configuration
| Feature | YAML | JSON | TOML |
|---|---|---|---|
| Comments | Yes (#) | No | Yes (#) |
| Readability | Excellent | Good | Excellent |
| Anchors/aliases | Yes (&/*) | No | No |
| Multi-document | Yes (---) | No | No |
| Indentation-sensitive | Yes (error-prone) | No (braces) | No (sections) |
| Used by | K8s, Docker, GitHub Actions | APIs, package.json, tsconfig | Cargo, pyproject, Hugo |
Common YAML gotchas
# Norway problem: "NO" is parsed as boolean false
country: NO # ❌ parsed as false
country: "NO" # ✅ string "NO"
# Version numbers: 1.0 is parsed as float
version: 1.0 # ❌ parsed as 1 (number)
version: "1.0" # ✅ string "1.0"
# Octal numbers: 0777 is NOT 777
mode: 0777 # ❌ parsed as 511 (octal)
mode: "0777" # ✅ string "0777"
# Always quote strings that look like booleans/numbersTechnical specifications
| Full name | YAML Ain't Markup Language |
| Extensions | .yaml, .yml |
| MIME type | text/yaml (RFC pending) |
| Current version | YAML 1.2.2 (2021) |
| Encoding | UTF-8 (recommended) |
| Superset of | JSON (valid JSON is valid YAML) |
Frequently Asked Questions
YAML vs JSON — Which should I use for config files?
YAML is better for configuration files — it supports comments (#), is more human-readable (indentation-based), and has anchors/aliases for DRY configs. JSON is better for data interchange (APIs, package.json) — it's stricter, faster to parse, and has universal support. Since YAML 1.2, any valid JSON is also valid YAML. Use YAML for Docker Compose, Kubernetes, CI/CD. Use JSON for APIs and machine-to-machine data.
YAML syntax — How does indentation work?
YAML uses indentation (spaces only, never tabs) to define structure — similar to Python. Each nesting level adds 2 spaces (convention). A single misplaced space can change meaning or cause parse errors. Key gotchas: 'NO' is parsed as boolean false (quote it: "NO"), 1.0 becomes a float (quote it: "1.0"), 0777 is octal (quote it: "0777"). Use yamllint and an editor with YAML support to catch errors.
YAML anchors explained — How to avoid repetition?
YAML anchors (&name) and aliases (*name) let you define a value once and reuse it, avoiding copy-paste duplication. Example: define defaults with '&defaults' then merge with '<<: *defaults' in each environment. Our sample-500kb.yaml demonstrates anchors with development/staging/production configs that inherit shared settings. Anchors are particularly useful in Docker Compose and CI/CD pipelines.
What is YAML used for in DevOps?
YAML is the dominant configuration format for DevOps: Kubernetes manifests (Deployments, Services, Pods), Docker Compose files, GitHub Actions / GitLab CI workflows, Ansible playbooks, Helm charts, and CloudFormation templates. Our sample files include realistic examples of all these formats for testing parsers and validators.
Should I use .yaml or .yml extension?
Both work — they are interchangeable. The official YAML FAQ recommends .yaml (full word), but .yml is widely used due to historical 3-character extension conventions. Kubernetes and Docker Compose accept both. Pick one and be consistent across your project.
Other data formats
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