Docker has revolutionized the world of containerization, enabling scalable and efficient application deployment.
To make the most of this powerful tool, here are 10 essential Docker best practices:
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ansible-inventory: To view the current inventory.ansible-inventory --graph: To visualize inventory as a graph.ansible-inventory --list: To list all hosts in the inventory.ansible: Run a single command on one or more managed nodes. Example:
ansible all -m ping (ping all hosts).ansible <group_name> -m <module_name> -a "<module_arguments>": Execute a module on a specific group of hosts. Example: ansible web_servers -m shell -a "uptime"ansible-playbook: Run a playbook. Example: ansible-playbook deploy.yml.ansible-playbook --syntax-check: Check syntax of playbook.ansible-playbook --list-tasks: List tasks in a playbook without executing them.ansible-galaxy init <role_name>: Initialize a new role.ansible-galaxy install <role_name>: Install a role from Ansible Galaxy.ansible-galaxy remove <role_name>: Remove a role.ansible-galaxy list: List installed roles.ansible-vault create <filename>: Create a new encrypted file.ansible-vault edit <filename>: Edit an encrypted file.ansible-vault encrypt <filename>: Encrypt an existing file.ansible-vault decrypt <filename>: Decrypt an encrypted file.ansible-inventory --refresh: Refresh dynamic inventory.ansible-inventory --graph: Visualize dynamic inventory as a graph.🐠 Tags:
Use tags in playbooks to execute specific tasks. Example:
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Ever struggled with deploying multi-container applications? Enter 𝗱𝗼𝗰𝗸𝗲𝗿-𝗰𝗼𝗺𝗽𝗼𝘀𝗲 𝘂𝗽!
One command to rule them all - orchestrating your containers seamlessly.
Spin up your dev environment with ease, define services, and voila! But wait, there's more - when it's time to call it a day, simply do a graceful exit with 𝗱𝗼𝗰𝗸𝗲𝗿-𝗰𝗼𝗺𝗽𝗼𝘀𝗲 𝗱𝗼𝘄𝗻.
Clean, efficient, and a game-changer for simplifying your development workflow.
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𝑱𝒐𝒊𝒏 𝑶𝒖𝒓 𝑻𝒆𝒄𝒉 𝑪𝒐𝒎𝒎𝒖𝒏𝒊𝒕𝒚 -> 𝑮𝒖𝒊𝒅𝒆 𝑶𝒕𝒉𝒆𝒓’𝒔
- Control your code with Git. It keeps track of changes and helps you work together on projects.
- Get comfy with Linux basics. It's like the home for your code, and knowing your way around is a big plus.
- Learn to talk to computers! Python and GO are like your special languages for making things happen in the digital world.
- Understand databases - they're where you store and fetch data. Knowing how they work is super important.
- Imagine the internet as a giant highway. Networking helps you build and navigate the roads for your digital traffic.
- Meet Jenkins, your automation buddy. It helps you put code together, test it, and deliver it smoothly.
- Workflows made easy! GitHub Actions automates tasks like testing and deploying, right from your GitHub space.
- GitLab CI is another cool friend. It makes sure your code is always in tip-top shape with continuous integration and delivery.
- Think of Circle CI as your helper in the cloud. It makes sure your code gets where it needs to go without a hitch.
- Docker is like a magic box. It helps you pack your software in a way that it runs the same everywhere.
- Imagine having a tiny helper organizing all your software containers. That's Kubernetes – making sure everything runs smoothly.
- HELM is like your toolkit for managing and releasing your software on Kubernetes. It makes your job way easier.
- These are like three big playgrounds for your digital creations. Pick one (or all) and learn how to play!
- Terraform is your digital construction worker. It builds and manages your online world without breaking a sweat.
- Meet Ansible, your automation genie. It makes sure everything in your digital kingdom is in order.
- Grafana is like your digital eyes. It helps you see and understand what's happening in your digital world with cool dashboards.
- Elastic Stack is your superhero trio – Elasticsearch, Logstash, and Kibana. They work together to manage and analyze your digital logs.
- Prometheus is your guard dog. It keeps watch and warns you if anything is going wrong in your digital space.
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You will learn about the following from the Blog.- High Level Prometheus Architecture
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You should know these 15 plugins
𝟭. 𝗦𝘁𝗲𝗿𝗻: Enhances log monitoring with regex support for Pod and Container IDs, similar to 'tail -f'.
𝟮. 𝗥𝗕𝗔𝗖-𝘁𝗼𝗼𝗹: Simplifies querying and creating RBAC policies, with visualization features.
𝟯. 𝗸𝘂𝗯𝗲𝗰𝘁𝗹-𝗰𝗶𝗹𝗶𝘂𝗺: Manages Cilium network security, providing eBPF dataplane capabilities.
𝟰. 𝗞𝘂𝗯𝗲 𝗣𝗼𝗹𝗶𝗰𝘆 𝗔𝗱𝘃𝗶𝘀𝗼𝗿: Advises on PodSecurityPolicies and OPA Policies, enhancing admission control.
𝟱. 𝗞𝘂𝗯𝗲𝗰𝘁𝗹-𝘀𝘀𝗺-𝘀𝗲𝗰𝗿𝗲𝘁: Facilitates the import/export of Kubernetes Secrets to/from AWS SSM Parameter Store.
𝟲. 𝗞𝘂𝗯𝗲𝗹𝗼𝗴𝗶𝗻: Streamlines logging into Kubernetes clusters via CLI with OpenID Connect providers.
𝟳. 𝗞𝘂𝗯𝗲𝗰𝘁𝗹-𝘄𝗵𝗶𝘀𝗽𝗲𝗿-𝘀𝗲𝗰𝗿𝗲𝘁: Improves secret creation with secure input prompts, protecting against leaks.
𝟴. 𝗞𝘂𝗯𝗲𝗰𝘁𝗹-𝗰𝗮𝗽𝘁𝘂𝗿𝗲: Enables packet capture for container troubleshooting and security investigations.
𝟵. 𝗞𝘂𝗯𝗲𝗰𝘁𝗹-𝘁𝗿𝗮𝗰𝗲: Facilitates distributed tracing in Kubernetes, aiding in security and performance analysis.
𝟭𝟬. 𝗔𝗰𝗰𝗲𝘀𝘀-𝗺𝗮𝘁𝗿𝗶𝘅 (𝗥𝗮𝗸𝗸𝗲𝘀𝘀): Displays an access matrix for server resources, highlighting CRUD permissions.
𝟭𝟭. 𝗥𝗼𝗹𝗲𝘀𝘂𝗺: Generates a summary of roles and permissions in the cluster, aiding in access control reviews.
𝟭𝟮. 𝗖𝗲𝗿𝘁-𝗠𝗮𝗻𝗮𝗴𝗲𝗿: Automates TLS certificate management, ensuring secure and up-to-date communication.
𝟭𝟯. 𝗻𝗽-𝘃𝗶𝗲𝘄𝗲𝗿: Visualizes network policies and topologies, helping to identify misconfigurations.
𝟭𝟰. 𝗸𝘀𝗻𝗶𝗳𝗳: Captures and analyzes network traffic for security assessments and troubleshooting.
𝟭𝟱. 𝗜𝗻𝘀𝗽𝗲𝗸𝘁𝗼𝗿-𝗚𝗮𝗱𝗴𝗲𝘁: The eBPF tool and systems inspection framework for Kubernetes, containers and Linux hosts.
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If you take out the tools, there are generic role specific requirements that companies will expect from you once you are onboard.
Keeping it simple, there are 4 levels for a DevOps role in IT.
- Collaborate with developers and IT staff to manage code releases.
- Assist in automating processes to improve efficiency.
- Implement and maintain CI/CD pipelines.
- Monitor system performance and troubleshoot issues.
- Assist in the design and implementation of infrastructure as code (IaC).
- Manage and improve CI/CD pipelines.
- Automate operational processes.
- Implement and manage monitoring and logging solutions.
- Collaborate with development and operations teams to ensure smooth deployment and operation of systems.
- Troubleshoot and resolve issues in development, test, and production environments.
- Implement and manage containerization and orchestration technologies (e.g., Docker, Kubernetes).
- Lead and mentor junior members of the DevOps team.
- Architect and design highly available and scalable systems.
- Evaluate new technologies and tools to improve the DevOps process.
- Develop and implement best practices for infrastructure automation and configuration management.
- Collaborate with other teams to improve overall system reliability and performance.
- Define the overall DevOps strategy for the organization.
- Lead large-scale infrastructure and automation projects.
- Drive innovation and continuous improvement within the DevOps team.
- Act as a subject matter expert for DevOps practices and technologies.
- Collaborate with executive leadership to align DevOps initiatives with business goals.
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Deployments types are decided based on various factors. including client unique requirements , flexibility , scalability , managing risk and much more !
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- Make a trail account (30 days validity)
- Use different CC/Email/Phone no for next
- Make student Azure account (.edu mail id)
- Student account valid for 1 year
- Check hacks on YouTube to get .edu mail id
- Check telegram for Azure prepaid pass (vouchers)
Options are many, any more excuse for not practicing?
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Are you optimizing your kubernetes workloads for efficiency? One key aspect is controlling resource usage within pods to ensure optimal performance and resources utilization.
🔍 Resource Requests:
➖ Specify minimum CPU and memory requirements for pods.
➖ Helps Kubernetes scheduler make informed placement decisions.
➖ Ensures pods have necessary resources to run effectively.
📈 Resource Limits:
➖ Set upper bounds on CPU and memory usage.
➖ Prevents pods from monopolizing resources.
➖ Maintains stability and reliability across the cluster.
😎 𝗙𝗼𝗹𝗹𝗼𝘄 @prodevopsguy 𝗳𝗼𝗿 𝗺𝗼𝗿𝗲 𝘀𝘂𝗰𝗵 𝗰𝗼𝗻𝘁𝗲𝗻𝘁 𝗮𝗿𝗼𝘂𝗻𝗱 𝗰𝗹𝗼𝘂𝗱 & 𝗗𝗲𝘃𝗢𝗽𝘀!!! // Join for DevOps DOCs: @devopsdocs
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↳ In GitOps world everyone is aware about the ArgoCD.
It's has tremendous features due to which its first choice of almost every DevOps engineer.
1. 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗲𝗱 𝗱𝗲𝗽𝗹𝗼𝘆𝗺𝗲𝗻𝘁 of applications to specified target environment in multiple clusters
Support for multiple config management/templating tools-->
• Kustomize
• Helm
• Ksonnet
• Jsonnet
• Plain-YAML
2. 𝗦𝗦𝗢 𝗜𝗻𝘁𝗲𝗴𝗿𝗮𝘁𝗶𝗼𝗻 :
• OIDC
• OAuth2
• LDAP
• SAML 2.0
• GitHub
• GitLab
• Microsoft
3. 𝗠𝘂𝗹𝘁𝗶-𝘁𝗲𝗻𝗮𝗻𝗰𝘆 𝗮𝗻𝗱 𝗥𝗕𝗔𝗖 policies for authorization
4. 𝗥𝗼𝗹𝗹𝗯𝗮𝗰𝗸/𝗥𝗼𝗹𝗹-𝗮𝗻𝘆𝘄𝗵𝗲𝗿𝗲 to any application configuration committed in Git repository.
• Health status analysis of application resources
5. 𝗔𝘂𝘁𝗼𝗺𝗮𝘁𝗲𝗱 𝗰𝗼𝗻𝗳𝗶𝗴𝘂𝗿𝗮𝘁𝗶𝗼𝗻 𝗱𝗿𝗶𝗳𝘁 detection and visualization
6. Out-of-the-box Prometheus metrics
7. Audit trails for application events and API calls
8. PreSync, Sync, PostSync hooks:
• Support complex application rollouts
-> blue/green
-> canary upgrades
9. Web-hook integration
-> GitHub
-> BitBucket
-> GitLab
10. CLI and access tokens for automation and Cl integration
11. Web UI which provides real-time view of application activity
12. Automated or manual syncing of applications to its desired state
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Ever wondered how to transition your system to embrace cloud-native architecture?
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Crafting secure and scalable cloud applications on AWS requires a solid foundation. This post explores the essential building blocks that form a typical AWS end-to-end application architecture.
🔶 𝗕𝗲𝗻𝗲𝗳𝗶𝘁𝘀 𝗼𝗳 𝗮 𝗪𝗲𝗹𝗹-𝗔𝗿𝗰𝗵𝗶𝘁𝗲𝗰𝘁𝗲𝗱 𝗦𝗼𝗹𝘂𝘁𝗶𝗼𝗻
By leveraging these core components, you can design an AWS architecture that's:
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1. Kubernetes Hands-on Lab #1 – Setting up 5-Node K8s Cluster
2. Kubernetes Hands-on Lab #2 – Running Our First Nginx Cluster
3. Kubernetes Hands-on Lab #3 –
https://lnkd.in/gSc2KDAb
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We Explained Each and Every Tools with Detailed Manner with their official site links
=> Table of Contents
1. Development Environment Tools
2. Source Code Management
3. Build Tools
4. Continuous Integration Tools
5. Artifact Management Tools
6. Code Analysis Tools
7. Continuous Delivery & GitOps Tools
8. Infrastructure Provisioning Tools
9. Cloud Cost Management Tools
10. Configuration Management Tools
11. Secret Management Tools
12. Config/Service Discovery Tools
13. Containerization Tools
14. Container Orchestration Tools
15. Container Security Tools
16. Policy Management Tools
17. Service Mesh Tools
18. Logging Tools
19. Monitoring & Observability Tools
20. Visualization Tools
21. Internal Developer Platform Tools
22. API Tools
23. Collaboration Tools
24. Backups and Restoration Tools
25. Cloud Providers
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1. Kubernetes Learning Roadmap
2. Kubernetes Certification Coupon
3. Kubernetes Learning Prerequisites
4. Learn Kubernetes Architecture
5. $1000+ Free Cloud Credits to Launch Clusters
6. Learn Kubernetes Cluster Setup & Administration
7. Understand KubeConfig File
8. Understand Kubernetes Objects And Resources
9. Learn About Pod & Associated Resources
10. Learn About Pod Dependent Objects
11. Deploy End to End Application on Kubernetes
12. Learn About Securing Kubernetes Cluster
13. Learn About Kubernetes Operator Pattern
14. Learn Important Kubernetes Configurations
15. Learn Kubernetes Best Practices
16. Real-World Kubernetes Case Studies
17. Kubernetes Failures/Learnings
18. Kubernetes Deployment Tools (GitOps Based)
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