updates

Signed-off-by: (Bit-Mage) <[email protected]>

Content/20231227160414-devops.org

@@ -30,6 +30,8 @@ A generic Flow :
 [[file:images/devops.png]]
 
 
+* Relevant Nodes
+** [[id:92efb858-8a87-40f6-bbcf-d736d0ffd942][GitOps]]
 * Resources
 ** blogs
  - https://www.kalzumeus.com/2010/12/12/staging-servers-source-control-deploy-workflows-and-other-stuff-nobody-teaches-you/

Content/20240215121050-kubernetes.org

@@ -11,6 +11,8 @@ see [[id:f822f8f6-89eb-4aa8-ac8f-fdcff3f06fb9][Orchestration]]
 ** 0x22E3
  - reading up on [[id:7cb8489b-2b84-4224-b3f9-9f5bf0f38cfe][autoscaling]]
  - see [[id:7f960631-c727-41b8-80c2-3ccaa4ae4ba2][Scheduling Algorithms]] & [[id:59305648-ed10-4298-be07-cd67f277f612][Scheduling-K8S]]
+ - building [[id:6693363c-a939-47bb-8900-5b1a6dc56c0c][Storage-K8S]]
+ - getting into [[id:73c378eb-6593-4479-bb6f-5d731ce203f2][Custom Resources-K8S]]
 
 ** 0x22E2
 - reading https://sookocheff.com/post/kubernetes/understanding-kubernetes-networking-model/
@@ -36,10 +38,10 @@ see [[id:f822f8f6-89eb-4aa8-ac8f-fdcff3f06fb9][Orchestration]]
 - https://opencontainers.org/
 - https://github.com/opencontainers
 *** Kubernetes Interfaces
-**** Container Runtime Interface
+**** [[id:3f197124-a252-4019-a821-332eb1e833fa][Container Runtime Interface]]
 - https://kubernetes.io/docs/concepts/architecture/cri/
-**** Container Network Interface
-**** Container Storage Interface
+**** [[id:6ca98606-217b-4741-97f8-d8f9f70a7d46][Container Network Interface]]
+**** [[id:ce56c5a9-b31d-46db-b2b0-6c83fa6abf02][Container Storage Interface]]
 ** 0x22D5
  - some quick indexes from container.training
  - internal dynamic dns:  https://qconuk2019.container.training/#46

Content/20240305152640-web_application_firewall.org

@@ -10,3 +10,5 @@ A DLP (Data Loss Prevention) module may be installed on the reverse proxy to add
 
 * Relevant Nodes
 ** Data Loss Prevention
+* Cloud Native
+** [[id:aad7cf70-154f-4198-ad2b-8e6cd40771aa][Traefik]]

Content/20240704135955-monitoring.org

@@ -9,6 +9,8 @@
 
 - collect, aggregate, and visualize data, enabling proactive issue identification and resolution.
 
+* Relevant
+** [[id:07566934-ed18-4b7e-858c-25b9fecd9f59][Benchmarking]]
 * Tools
  - [[id:55a62ff7-7160-4e6e-9bb5-0df996bf995e][Prometheus]]
  - [[id:c655ab1e-827c-446b-967b-473c0a34dc0d][InfluxDB]]

Content/20240728173428-flux.org

@@ -3,3 +3,6 @@
 :END:
 #+title: Flux
 #+filetags: :cloud-native:cncf:
+
+* Resources
+- https://fluxcd.io/flux/

Content/20241014171415-storage_k8s.org

@@ -0,0 +1,52 @@
+:PROPERTIES:
+:ID:       6693363c-a939-47bb-8900-5b1a6dc56c0c
+:END:
+#+title: Storage-K8S
+#+filetags: :k8s:
+
+* Overview
+- Storage in Kubernetes provides both persistent and ephemeral storage options for applications.
+- Storage abstraction in Kubernetes involves resources like Persistent Volumes (PV), Persistent Volume Claims (PVC), and Storage Classes to streamline provisioning and management.
+
+** Components of Kubernetes Storage
+
+- Persistent Volume (PV):
+  - Cluster storage provisioned by administrators or dynamically via storage classes.
+  - Functions independently of pod lifecycle with defined capacity and access mode.
+
+- Persistent Volume Claim (PVC):
+  - User-requested storage specifying size and access modes (ReadWriteOnce, ReadOnlyMany, ReadWriteMany).
+  - Binds to a PV that meets the claim’s specifications.
+
+- Storage Classes:
+  - Define different storage types and characteristics like replication and performance.
+  - Enable dynamic volume provisioning.
+  - Applications leverage StorageClass to align volumes with performance requirements.
+
+** Connection between PV, PVC, and Storage Classes
+
+- PVCs abstract storage for users; PVs represent the actual storage resource.
+- Storage Classes offer templates for dynamically provisioning PVs based on application needs.
+- Kubernetes provisions a PV automatically upon PVC creation that matches the desired StorageClass.
+
+** Considerations in Kubernetes Storage
+
+- Data Security: Implement encryption, access controls, and network policies.
+- Storage Performance: Monitor IOPS, latency, and throughput relative to application demands.
+- Backup and Recovery: Develop strategies and use tools for data recovery.
+- Capacity Planning: Evaluate resource utilization and anticipate future needs for optimal storage allocation.
+
+** Approaches for Smarter Storage Management in K8S
+
+- Automate monitoring and alert systems for storage usage and performance metrics.
+- Update Storage Classes regularly to incorporate new storage technology advancements.
+- Design storage architecture with scalability and high availability in mind.
+- checkout [[id:ce56c5a9-b31d-46db-b2b0-6c83fa6abf02][CSI]], for flexible storage classes
+- also read up on non-persistent storage options ([[id:60916676-5582-4438-b24e-902d51cbd8e0][Ephemeral Volumes]])
+
+* Resources
+- https://kubernetes.io/docs/concepts/storage/
+- https://cloudian.com/guides/kubernetes-storage/kubernetes-storage-101-concepts-and-best-practices/
+- https://bluexp.netapp.com/blog/cvo-blg-kubernetes-storage-an-in-depth-look
+- https://kubernetes.io/docs/concepts/storage/ephemeral-volumes/
+- https://kubernetes.io/docs/concepts/storage/persistent-volumes/

Content/20241014181713-container_runtime_interface.org

@@ -0,0 +1,5 @@
+:PROPERTIES:
+:ID:       3f197124-a252-4019-a821-332eb1e833fa
+:END:
+#+title: Container Runtime Interface
+#+filetags: :k8s:

Content/20241014181722-container_network_interface.org

@@ -0,0 +1,5 @@
+:PROPERTIES:
+:ID:       6ca98606-217b-4741-97f8-d8f9f70a7d46
+:END:
+#+title: Container Network Interface
+#+filetags: :k8s:

Content/20241014181728-container_storage_interface.org

@@ -0,0 +1,11 @@
+:PROPERTIES:
+:ID:       ce56c5a9-b31d-46db-b2b0-6c83fa6abf02
+:END:
+#+title: Container Storage Interface
+#+filetags: :k8s:
+
+
+* Resources
+- https://kubernetes-csi.github.io/docs/introduction.html
+- https://github.com/kubernetes/design-proposals-archive/blob/main/storage/container-storage-interface.md
+- https://kubernetes.io/blog/2019/01/15/container-storage-interface-ga/

Content/20241014182049-ephemeral_volumes_k8s.org

@@ -0,0 +1,8 @@
+:PROPERTIES:
+:ID:       60916676-5582-4438-b24e-902d51cbd8e0
+:END:
+#+title: Ephemeral Volumes-K8S
+#+filetags: :k8s:
+
+* Resources
+- https://kubernetes.io/docs/concepts/storage/ephemeral-volumes/

Content/20241014190456-benchmarking.org

@@ -0,0 +1,8 @@
+:PROPERTIES:
+:ID:       07566934-ed18-4b7e-858c-25b9fecd9f59
+:END:
+#+title: Benchmarking
+#+filetags: :cs:cloud:
+
+* Tools
+** [[id:0472a2a4-99bb-46e7-a2ab-da094483f106][Apache Bench]]

Content/20241014190517-apache_bench.org

@@ -0,0 +1,8 @@
+:PROPERTIES:
+:ID:       0472a2a4-99bb-46e7-a2ab-da094483f106
+:END:
+#+title: Apache Bench
+#+filetags: :tool:cs:
+
+* Resources
+- https://httpd.apache.org/docs/2.4/programs/ab.html

Content/20241014193051-traefik.org

@@ -0,0 +1,5 @@
+:PROPERTIES:
+:ID:       aad7cf70-154f-4198-ad2b-8e6cd40771aa
+:END:
+#+title: Traefik
+#+filetags: :k8s:cloud:cncf:

Content/20241014203106-gitops.org

@@ -0,0 +1,14 @@
+:PROPERTIES:
+:ID:       92efb858-8a87-40f6-bbcf-d736d0ffd942
+:END:
+#+title: GitOps
+#+filetags: :cs:
+
+* Overview
+ - practices towards managing infra and applications
+ - git as the single source of truth
+
+* Relevant Nodes
+** [[id:60e66e66-d394-42e7-a624-303ddb295395][Flux]]
+* Resources
+ - https://docs.gitlab.com/ee/user/clusters/agent/gitops.html

Content/20241014203604-custom_resources_k8s.org

@@ -0,0 +1,11 @@
+:PROPERTIES:
+:ID:       73c378eb-6593-4479-bb6f-5d731ce203f2
+:END:
+#+title: Custom Resources-K8S
+#+filetags: :k8s:
+
+For a truly declarative API (orchestrating current and desired states), also see [[id:0d5a5e8f-6b9f-4427-b60a-a3f93735b256][Custom Controllers-K8S]]
+
+
+* Resources
+ - https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/#custom-controllers

Content/20241014203837-custom_controllers_k8s.org

@@ -0,0 +1,7 @@
+:PROPERTIES:
+:ID:       0d5a5e8f-6b9f-4427-b60a-a3f93735b256
+:END:
+#+title: Custom Controllers-K8S
+#+filetags: :k8s:
+
+Work in conjunction with [[id:73c378eb-6593-4479-bb6f-5d731ce203f2][Custom Resources-K8S]]