Kubernetes - What Are the Most Important Design Patterns and Principles?
What are the most important Kubernetes design patterns and principles?
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Secrets in Kubernetes - How to Transfer Secrets from One Cluster to Another?
How to transfer secrets from one Kubernetes cluster to another?
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Ep04 - Ask Me Anything About DevOps, Cloud, Kubernetes, Platform Engineering,... w/Scott Rosenberg
There are no restrictions in this AMA session. You can ask anything about DevOps, Cloud, Kubernetes, Platform Engineering, containers, or anything else. We'll have a special guest Scott Rosenberg to help us out.
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Mastering Kubernetes: Volumes (Persistent Volumes and Claims, ConfigMaps, Secrets, etc)
Dive into Kubernetes Volumes in this comprehensive tutorial! We'll cover local volumes like emptyDir, CSI Drivers, Storage Classes, Persistent Volumes, Persistent Volume Claims, ConfigMaps, and Secrets. Learn how to use these essential components in Kubernetes for efficient storage management. Understanding volumes is crucial whether you're developing locally or deploying in production. Follow along with practical examples and commands to master Kubernetes volumes. Perfect for beginners and experts alike.
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Consider joining the channel: https://www.youtube.com/c/devopstoolkit/join
▬▬▬▬▬▬ 🔗 Additional Info 🔗 ▬▬▬▬▬▬ ➡ Transcript and commands: https://devopstoolkit.live/kubernetes/mastering-kubernetes-volumes-emptydir,-csi-drivers,-storage-classes,-persistent-volumes-and-persistent-volume-claims,-configmaps,-and-secrets 🔗 Kubernetes: https://kubernetes.io 🎬 Mastering Kubernetes: Workloads APIs (Deployment, StatefulSet, ReplicaSet, Pod, etc.): https://youtu.be/U6weXlzQxoY
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▬▬▬▬▬▬ ⏱ Timecodes ⏱ ▬▬▬▬▬▬ 00:00 Kubernetes Volumes Intro 00:34 Kubernetes Volumes (emptyDir) 01:17 ManageEngine (sponsort) 02:09 Kubernetes Volumes (emptyDir) (cont.) 05:03 Kubernetes Container Storage Interface (CSI) Drivers and Storage Classes 08:00 Kubernetes Persistent Volumes and Persistent Volume Claims 13:44 Kubernetes Config Maps 17:12 Kubernetes Secrets
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Control Plane - What Are The Main Benefits of Implementing It?
What are the main benefits of developing and implementing Control Planes?
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Canary Deployments - What Are Examples Where It Can Be Used Other Than for Cloud Resources?
What are examples where Crossplane can (and should) be used other than for Cloud resources?
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Canary Deployments - Is It a Good Practice to Combine Argo Rollouts with Ingress and Istio?
Canary Deployments - Is It a Good Practice to Combine Argo Rollouts with Ingress and Istio?
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Week Ending December 15, 2024
https://lwkd.info/2024/20241216
Developer News
This will be the last LWKD issue of the year. Publication will resume in 2025 with the January 5th edition.
Submissions for the maintainer summit at Kubecon London are due January 12th. The CfP for the main tracks in Kubecon China, Kubecon India, and Kubecon Japan are now open.
Release Schedule
Next Deadline: 1.33 Cycle Begins, January ??
The 1.33 development cycle will begin in early January, but a specific schedule has not been set.
Featured PRs
128718 FG:InPlacePodVerticalScaling- Enable resizing containers without limits
This PR fixes critical bugs in the pod resize code, specifically addressing cases where containers lack resource limits. It ensures proper handling of these scenarios, enabling in-place vertical scaling for such containers. Also, the PR enhances test coverage to prevent regressions, marking a step forward for reliable container resizing in Kubernetes.
KEP of the Week
KEP-3221: Structured Authorization Configuration
Currently, kube-apiserver configures its authorization chain using --authorization-* flags, limiting admins to a single webhook via --authorization-modes. This restricts creating ordered authorization chains with multiple webhooks. This proposal suggests a structured configuration for defining the authorization chain, supporting multiple webhooks with fine-grained controls, including an explicit Deny authorizer.
This KEP is tracked for alpha release in the ongoing v1.32 cycle.
Other Merges
kubectl apply now coerces null values for labels and annotations in manifests to empty string values
Configure watch cache history window based on request timeout
kubectl: improved test coverage for cordon command
Removed the limitation on exposing port 10250 externally in service
kube-proxy extends the schema of metrics/ endpoints to incorporate info about corresponding IP family
Fix for data race in CBOR serializer’s custom marshaler type cache
kubelet: Improvements to reboot event reporting
kubeadm: removed preflight check for ip, iptables, ethtool and tc on Linux nodes
docs: example added for set-based requirement for -l/–selector flag
Drop use of winreadlinkvolume godebug option
kubelet: fix for issue mounting CSI volumes on Windows nodes in 1.32.0 release candidates
Added validation to versioned feature specs
Added kubelet validation for containerLogMaxFiles
scheduler: Renamed UpdatePodTolerations for code style consistency
kubeadm: Fix to not read kubeconfig from disk repeatedly in the init phase
Added a /flagz endpoint for kube-proxy
Adjustments to throughput threshold for new tests based on historical times to avoid flakiness.
Record dataTimestamp from external signers at float granularity
Use autoscalingv2 in kubectl autoscale
DRA: validations for labels in node selectors
Fix for memory leak in kube-proxy EndpointSliceCache
FG:InPlacePodVerticalScaling Remove ResizePolicy defaulting
Use generic sets rather than deprecated sets.String
Test EndpointSlice in dual-stack e2e tests
Fix for linting issue in TestNodeDeletionReleaseCIDR
Cleanup for ServiceChangeTracker and EndpointsChangeTracker
Improvements to validation for missing storedVersion
Documententation added for the existence of nftables as a kube-proxy mode
Fixed kubectl wait –for=create behavior with label selectors
Added non graceful shutdown integration test
Added validation for NodeSelectorRequirement’s values
Fix to prevent unnecessary resolving of iscsi/fc devices
Optionally set the User.UID from an x509 client cert
Fine-grained QHints for interpodaffinity plugin
Allow ContainerResource calculations to continue with missing metrics like Resource calculations
Added warning for duplicate port name definition
Deprecated
Removed support for v1alpha1 version of ValidatingAdmissionPolicy and ValidatingAdmissionPolicyBinding API kinds.
kube-apiserver: inactive serving code is removed for authentication.k8s.io/v1alpha1 APIs
Deprecated pod_scheduling_duration_seconds metric is removed
Version Updates
Bump kubedns and nodelocaldns to 1.24.0
Bump kube-openapi
x/crypto/ssh dependency to v0.31.0
cri-tools to v1.32.0
Update publishing-bot rules to Go 1.22.9
hnslib to v0.0.8
Shoutouts
Big 1.32 Shoutout from Federico Muñoz: With Kubernetes v1.32 out, I want to acknowledge those that made it possible: my Release Lead shadows @Nina Polshakova @Sreeram Venkitesh @Mohammad Reza Saleh @Vyom Yadav, Enhancements Lead @tjons and shadows @Jenny Shu @Sepideh @Dipesh, Release Signal lead @Drew Hagen, and shadows @Amim Knabben @ChengHao Yang (tico88612) @Wendy Ha @sbaumer, Docs lead @dchan, and shadows @anshuman @Rod @James Spurin @Shedrack Akintayo @Michelle Nguyen, Release Notes lead @satyampsoni, and shadows @Augustin Tsang @jefftrojan @Lavish Pal @Melony Q. (aka.cloudmelon ) @rayandas @Sneha, Comms lead @Matteo, and shadows @Edith @Rashan @Ryota @Will-I-Am, Release Managers @jimangel and @Mickey and our EA @Kat Cosgrove (plus @Grace Nguyen from SIG Release). The success of this is much more the result of all your tireless work than anything else.
via Last Week in Kubernetes Development https://lwkd.info/
December 16, 2024 at 05:00PM
What Do I Hate About Kubernetes?
What are the things I dislike about Kubernetes? What should be improved?
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Contact Chris Short
https://chrisshort.net/contact/
Contact Chris Short
via Chris Short https://chrisshort.net/
December 17, 2024 at 07:00PM
1_r/devopsish
5_Gaming
3_Music