Your containers, pods and services come to life with connectivity.
We discover the happy side of understanding Kubernetes networking?
There are 3 kinds of IPs that you need to understand in Kubernetes.
1: Node IP
↳ The address of the physical machine or VM that hosts Kubernetes.
→ Pod to Pod communication across different nodes happens via node IP.
2: Service IP
↳ A virtual IP address that represents a group of Pods.
→ It is assigned by Kubernetes to facilitate application exposure within the cluster or externally.
3: Pod IP -
↳ The address of a single pod.
→ It is used by the pod to communicate with other pods and services.
→ The Pod IP is assigned by the Kubernetes network plugin.
- The Node IP, Service IP, and Pod IP address do not have to be in the same network.
- Kubernetes uses DNS to resolve the names of pods and services to their IP addresses.
Kubernetes IP addressing may be a small thing → but they make big things happen.
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𝟭. 𝗴𝗶𝘁 𝗺𝗲𝗿𝗴𝗲 𝘃𝘀 𝗴𝗶𝘁 𝗿𝗲𝗯𝗮𝘀𝗲:
- 𝘨𝘪𝘵 𝘮𝘦𝘳𝘨𝘦 combines branch changes with new merge commits
- 𝘨𝘪𝘵 𝘳𝘦𝘣𝘢𝘴𝘦 moves branch changes on top, creating a linear history
𝟮. 𝗴𝗶𝘁 𝗿𝗲𝘀𝗲𝘁 𝘃𝘀 𝗴𝗶𝘁 𝗿𝗲𝘃𝗲𝗿𝘁:
- 𝘨𝘪𝘵 𝘳𝘦𝘴𝘦𝘵 undoes changes and moves the branch pointer, discarding subsequent commits
- 𝘨𝘪𝘵 𝘳𝘦𝘷𝘦𝘳𝘵 creates new undo commits, preserving history
𝟯. 𝗴𝗶𝘁 𝗳𝗲𝘁𝗰𝗵 𝘃𝘀 𝗴𝗶𝘁 𝗽𝘂𝗹𝗹:
- 𝘨𝘪𝘵 𝘧𝘦𝘵𝘤𝘩 downloads remote changes without auto-merging
- 𝘨𝘪𝘵 𝘱𝘶𝘭𝘭 fetches and auto-merges remote changes
In short,
git pull = git fetch + git merge
–
DevOps is the most happening and integral part of almost all organizations.
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Looking to harness the power of microservices in the cloud? Azure Kubernetes Service (AKS) offers an ideal platform. Here's a snapshot of this architecture:
🎯AKS: Managed Kubernetes cluster hosted in Azure. Focus on agent nodes while Azure handles the Kubernetes API service.
🎯Virtual Network: AKS sets up a virtual network for agent nodes. For advanced scenarios, set up your own network with control over subnet config and more.
🎯Ingress: Exposes HTTP(S) routes to services within the cluster, acting as an API Gateway.
🎯Azure Load Balancer: Routes internet traffic to the ingress controller, ensuring scalability and reliability.
🎯External Data Stores: Microservices often use external data stores like Azure SQL Database or Azure Cosmos DB for stateful operations.
🎯 Microsoft Entra ID: Used for creating and managing Azure resources and recommended for user authentication in client apps.
🎯Azure Container Registry: Store private Docker images for deployment. AKS can authenticate using its Microsoft Entra identity.
🎯Azure Pipelines: Part of Azure DevOps, automates builds, tests, and deployments. Also compatible with third-party CI/CD tools.
🎯Helm: A Kubernetes package manager that simplifies managing and deploying applications.
🎯Azure Monitor: Collects and stores metrics, logs, and telemetry data for monitoring, alerting, and root cause analysis.
🎯 Cost Optimization: Use the Azure pricing calculator to estimate costs, and refer to the Azure Well-Architected Framework for further insights.
Seize the potential of microservices on AKS, backed by the Azure cloud's robust infrastructure.
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𝐓𝐡𝐞 𝐦𝐨𝐬𝐭 𝐜𝐨𝐦𝐦𝐨𝐧 𝐉𝐞𝐧𝐤𝐢𝐧𝐬 𝐞𝐫𝐫𝐨𝐫𝐬 𝐚𝐧𝐝 𝐭𝐡𝐞𝐢𝐫 𝐬𝐨𝐥𝐮𝐭𝐢𝐨𝐧𝐬
1. 𝐏𝐞𝐫𝐦𝐢𝐬𝐬𝐢𝐨𝐧 𝐈𝐬𝐬𝐮𝐞𝐬:
-😣 𝐄𝐫𝐫𝐨𝐫: Jenkins can't access files.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Give Jenkins proper access rights or run it as the right user.
2. 𝐁𝐮𝐢𝐥𝐝 𝐅𝐚𝐢𝐥𝐮𝐫𝐞𝐬:
-😡 𝐄𝐫𝐫𝐨𝐫: Builds fail.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Check logs, fix issues like missing stuff or wrong settings.
3. 𝐖𝐨𝐫𝐤𝐬𝐩𝐚𝐜𝐞 𝐂𝐥𝐞𝐚𝐧𝐮𝐩 𝐈𝐬𝐬𝐮𝐞𝐬:
-🚫 𝐄𝐫𝐫𝐨𝐫: Workspace gets messy.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Configure Jenkins to clean up after builds.
4. 𝐏𝐥𝐮𝐠𝐢𝐧 𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐢𝐥𝐢𝐭𝐲:
-😬 𝐄𝐫𝐫𝐨𝐫: Plugins don't work with Jenkins.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Update or find compatible plugins.
5. 𝐌𝐚𝐬𝐭𝐞𝐫-𝐒𝐥𝐚𝐯𝐞 𝐂𝐨𝐧𝐧𝐞𝐜𝐭𝐢𝐨𝐧 𝐏𝐫𝐨𝐛𝐥𝐞𝐦𝐬:
-😞 𝐄𝐫𝐫𝐨𝐫: Master can't talk to slaves.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Check the network, slave online, and credentials right.
6. 𝐎𝐮𝐭 𝐨𝐟 𝐌𝐞𝐦𝐨𝐫𝐲 𝐄𝐫𝐫𝐨𝐫𝐬:
-😰 𝐄𝐫𝐫𝐨𝐫: Jenkins runs out of memory.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Give Jenkins more memory.
7. 𝐉𝐞𝐧𝐤𝐢𝐧𝐬 𝐍𝐨𝐭 𝐒𝐭𝐚𝐫𝐭𝐢𝐧𝐠:
-😨 𝐄𝐫𝐫𝐨𝐫: Jenkins won't start.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Check logs for issues, like port conflicts or wrong configs.
8. 𝐏𝐥𝐮𝐠𝐢𝐧 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 𝐈𝐬𝐬𝐮𝐞𝐬:
-😒 𝐄𝐫𝐫𝐨𝐫: Can't install plugins.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Fix internet, firewall, and proxy settings.
9. 𝐒𝐥𝐨𝐰 𝐁𝐮𝐢𝐥𝐝 𝐄𝐱𝐞𝐜𝐮𝐭𝐢𝐨𝐧:
-😴 𝐄𝐫𝐫𝐨𝐫: Builds take forever.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Speed up builds by parallelizing tasks, optimizing code, or upgrading hardware.
10. 𝐄𝐦𝐚𝐢𝐥 𝐂𝐨𝐧𝐟𝐢𝐠𝐮𝐫𝐚𝐭𝐢𝐨𝐧 𝐏𝐫𝐨𝐛𝐥𝐞𝐦𝐬:
-😟 𝐄𝐫𝐫𝐨𝐫: Email notifications messed up.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Check email settings.
11. 𝐒𝐂𝐌 𝐂𝐨𝐧𝐟𝐢𝐠𝐮𝐫𝐚𝐭𝐢𝐨𝐧 𝐄𝐫𝐫𝐨𝐫𝐬:
-😤 𝐄𝐫𝐫𝐨𝐫: Source code setup is wrong.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Verify settings for Git, SVN, etc.
12. 𝐉𝐞𝐧𝐤𝐢𝐧𝐬 𝐉𝐨𝐛 𝐓𝐫𝐢𝐠𝐠𝐞𝐫𝐢𝐧𝐠:
-😕 𝐄𝐫𝐫𝐨𝐫: Jobs not running.
-✅ 𝐒𝐨𝐥𝐮𝐭𝐢𝐨𝐧: Review job triggering settings.
Remember, always read the error messages and logs, and you can usually figure things out. If you're still stuck, ask the Jenkins community for help.😊
❤️ Follow for more: @prodevopsguy
1. 𝐏𝐞𝐫𝐦𝐢𝐬𝐬𝐢𝐨𝐧 𝐈𝐬𝐬𝐮𝐞𝐬:
-
-
2. 𝐁𝐮𝐢𝐥𝐝 𝐅𝐚𝐢𝐥𝐮𝐫𝐞𝐬:
-
-
3. 𝐖𝐨𝐫𝐤𝐬𝐩𝐚𝐜𝐞 𝐂𝐥𝐞𝐚𝐧𝐮𝐩 𝐈𝐬𝐬𝐮𝐞𝐬:
-
-
4. 𝐏𝐥𝐮𝐠𝐢𝐧 𝐂𝐨𝐦𝐩𝐚𝐭𝐢𝐛𝐢𝐥𝐢𝐭𝐲:
-
-
5. 𝐌𝐚𝐬𝐭𝐞𝐫-𝐒𝐥𝐚𝐯𝐞 𝐂𝐨𝐧𝐧𝐞𝐜𝐭𝐢𝐨𝐧 𝐏𝐫𝐨𝐛𝐥𝐞𝐦𝐬:
-
-
6. 𝐎𝐮𝐭 𝐨𝐟 𝐌𝐞𝐦𝐨𝐫𝐲 𝐄𝐫𝐫𝐨𝐫𝐬:
-
-
7. 𝐉𝐞𝐧𝐤𝐢𝐧𝐬 𝐍𝐨𝐭 𝐒𝐭𝐚𝐫𝐭𝐢𝐧𝐠:
-
-
8. 𝐏𝐥𝐮𝐠𝐢𝐧 𝐈𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧 𝐈𝐬𝐬𝐮𝐞𝐬:
-
-
9. 𝐒𝐥𝐨𝐰 𝐁𝐮𝐢𝐥𝐝 𝐄𝐱𝐞𝐜𝐮𝐭𝐢𝐨𝐧:
-
-
10. 𝐄𝐦𝐚𝐢𝐥 𝐂𝐨𝐧𝐟𝐢𝐠𝐮𝐫𝐚𝐭𝐢𝐨𝐧 𝐏𝐫𝐨𝐛𝐥𝐞𝐦𝐬:
-
-
11. 𝐒𝐂𝐌 𝐂𝐨𝐧𝐟𝐢𝐠𝐮𝐫𝐚𝐭𝐢𝐨𝐧 𝐄𝐫𝐫𝐨𝐫𝐬:
-
-
12. 𝐉𝐞𝐧𝐤𝐢𝐧𝐬 𝐉𝐨𝐛 𝐓𝐫𝐢𝐠𝐠𝐞𝐫𝐢𝐧𝐠:
-
-
Remember, always read the error messages and logs, and you can usually figure things out. If you're still stuck, ask the Jenkins community for help.
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https://drive.google.com/drive/u/0/folders/1I8QqnzZonRewbSnUMyfC9-tRduEJ4gyB
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1698360479103.pdf
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Understanding platform engineering equips DevOps engineers with a comprehensive view of the infrastructure and tools.
This knowledge enables them to optimize workflows, ensure security and compliance, manage costs, and drive innovation, leading to more efficient and effective software delivery processes.
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AWS API Gateway is a fully managed service provided by Amazon Web Services (AWS) that enables you to create, publish, and manage RESTful or WebSocket APIs for your applications. It serves as a gateway for your backend services, making it easier for clients, such as web or mobile applications, to interact with your APIs.
Overall, AWS API Gateway is a versatile service that simplifies the process of creating and managing APIs, making it a valuable tool for developers building scalable and secure applications on AWS.
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This Includes:
- All Kubernetes Content
- Kubernetes Realtime scenarios
- All Kubernetes Exercises with solutions
- No More AWS PDFs needed
- Easy to Learn from anywhere
- Detailed Explanation guide
- All Kubernetes Tricks & Techniques for DevOps guy
- Added Certified Kubernetes Administrator (CKA) Notes
- All Kubernetes Realtime examples included
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1698427672857.pdf
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Empowering my network with the ultimate Docker cheat sheet – because efficiency is the key to navigating the tech realm! 💻 🚀
❤️ Follow for more: @prodevopsguy
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_________________
docker run - run a container from an image
docker pull - pull an image from a registry
docker push - push an image to a registry
docker build - build an image from a Dockerfile
docker ps - list running containers
docker stop - stop a running container
docker start - start a stopped container
docker restart - restart a container
docker logs - show the logs of a container
docker exec - execute a command inside a running container
docker images - list available images
docker rm - remove a container
docker rmi - remove an image
docker inspect - show information about a container
docker network create - create a network for containers to communicate
docker network connect - connect a container to a network
docker network disconnect - disconnect a container from a network
docker port - show the mapped ports of a container
docker cp - copy files between a container and the host
docker commit - create a new image from a container's changes
docker login - log in to a registry
docker logout - log out of a registry
docker tag - tag an image with a new name
docker export - export the contents of a container as a tar archive
docker import - create a new image from a tar archive
docker save - save an image as a tar archive
docker load - load an image from a tar archive
docker top - show the processes running inside a container
docker stats - show resource usage statistics of containers
docker diff - show the changes made to a container's filesystem
docker events - show the events generated by Docker
docker history - show the history of an image
docker pause - pause a running container
docker unpause - unpause a paused container
docker kill - send a signal to a container to stop it abruptly
docker wait - wait for a container to exit and return its exit code
docker attach - attach to a running container's console
docker buildx - build and push multi-platform images
docker compose - manage multi-container applications with Docker Compose
docker swarm - create and manage a cluster of Docker nodes
docker volume create - create a named volume for persistent data storage
docker volume ls - list available volumes
docker volume rm - remove a named volume
docker system prune - remove all unused objects from Docker
docker system df - show the usage of Docker objects
docker system events - show the events generated by Docker on the system
docker system info - show the system-wide information about Docker
docker system inspect - show detailed information about Docker objects
docker system logs - show the system logs of Docker
docker system version - show the version of Docker installed on the system
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Navigating AWS costs can sometimes be tricky. To aid users in proactive cost management, I've developed a Terraform module that automates the setup of billing alerts. With this tool, you'll receive timely notifications if your AWS charges cross predefined thresholds.
For those keen on ensuring their AWS expenses stay within predictable boundaries, this tool is a valuable asset for every AWS Engineer.
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Don't overwhelm to learn Git,🙄
Git is this much only👇 😊
1️⃣ . Core:
• git init
• git clone
• git add
• git commit
• git status
• git diff
• git checkout
• git reset
• git log
• git show
• git tag
• git push
• git pull
2️⃣ . Branching:
• git branch
• git checkout -b
• git merge
• git rebase
• git branch --set-upstream-to
• git branch --unset-upstream
• git cherry-pick
3️⃣ . Merging:
• git merge
• git rebase
4️⃣ . Stashing:
• git stash
• git stash pop
• git stash list
• git stash apply
• git stash drop
5️⃣ . Remotes:
• git remote
• git remote add
• git remote remove
• git fetch
• git pull
• git push
• git clone --mirror
6️⃣ . Configuration:
• git config
• git global config
• git reset config
7️⃣ . Plumbing:
• git cat-file
• git checkout-index
• git commit-tree
• git diff-tree
• git for-each-ref
• git hash-object
• git ls-files
• git ls-remote
• git merge-tree
• git read-tree
• git rev-parse
• git show-branch
• git show-ref
• git symbolic-ref
• git tag --list
• git update-ref
8️⃣ . Porcelain:
• git blame
• git bisect
• git checkout
• git commit
• git diff
• git fetch
• git grep
• git log
• git merge
• git push
• git rebase
• git reset
• git show
• git tag
9️⃣ . Alias:
• git config --global alias.<alias> <command>
1️⃣ 0️⃣ . Hook:
• git config --local core.hooksPath <path>
1️⃣ 1️⃣ .Experimental: (May not be fully Supported)
• git annex
• git am
• git cherry-pick --upstream
• git describe
• git format-patch
• git fsck
• git gc
• git help
• git log --merges
• git log --oneline
• git log --pretty=
• git log --short-commit
• git log --stat
• git log --topo-order
• git merge-ours
• git merge-recursive
• git merge-subtree
• git mergetool
• git mktag
• git mv
• git patch-id
• git p4
• git prune
• git pull --rebase
• git push --mirror
• git push --tags
• git reflog
• git replace
• git reset --hard
• git reset --mixed
• git revert
• git rm
• git show-branch
• git show-ref
• git show-ref --heads
• git show-ref --tags
• git stash save
• git subtree
• git tag --delete
• git tag --force
• git tag --sign
• git tag -f
• git tag -l
• git tag --verify
• git unpack-file
• git update-index
• git verify-pack
• git worktree
-------- 🔚 🔚 --------
♥️ Credits: @NotHarshhaa ✅
❤️ Follow for more: @prodevopsguy
Git is this much only
• git init
• git clone
• git add
• git commit
• git status
• git diff
• git checkout
• git reset
• git log
• git show
• git tag
• git push
• git pull
• git branch
• git checkout -b
• git merge
• git rebase
• git branch --set-upstream-to
• git branch --unset-upstream
• git cherry-pick
• git merge
• git rebase
• git stash
• git stash pop
• git stash list
• git stash apply
• git stash drop
• git remote
• git remote add
• git remote remove
• git fetch
• git pull
• git push
• git clone --mirror
• git config
• git global config
• git reset config
• git cat-file
• git checkout-index
• git commit-tree
• git diff-tree
• git for-each-ref
• git hash-object
• git ls-files
• git ls-remote
• git merge-tree
• git read-tree
• git rev-parse
• git show-branch
• git show-ref
• git symbolic-ref
• git tag --list
• git update-ref
• git blame
• git bisect
• git checkout
• git commit
• git diff
• git fetch
• git grep
• git log
• git merge
• git push
• git rebase
• git reset
• git show
• git tag
• git config --global alias.<alias> <command>
• git config --local core.hooksPath <path>
• git annex
• git am
• git cherry-pick --upstream
• git describe
• git format-patch
• git fsck
• git gc
• git help
• git log --merges
• git log --oneline
• git log --pretty=
• git log --short-commit
• git log --stat
• git log --topo-order
• git merge-ours
• git merge-recursive
• git merge-subtree
• git mergetool
• git mktag
• git mv
• git patch-id
• git p4
• git prune
• git pull --rebase
• git push --mirror
• git push --tags
• git reflog
• git replace
• git reset --hard
• git reset --mixed
• git revert
• git rm
• git show-branch
• git show-ref
• git show-ref --heads
• git show-ref --tags
• git stash save
• git subtree
• git tag --delete
• git tag --force
• git tag --sign
• git tag -f
• git tag -l
• git tag --verify
• git unpack-file
• git update-index
• git verify-pack
• git worktree
-------- 🔚 🔚 --------
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GitHub
GitHub - NotHarshhaa/AWS-DevOps_Real-Time_Deployment: AWS DevOps Real-Time Deployment - Dev → Pre-PROD → Production
AWS DevOps Real-Time Deployment - Dev → Pre-PROD → Production - NotHarshhaa/AWS-DevOps_Real-Time_Deployment
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