zodvik

Producer

Setup
bin/kafka-topics.sh --zookeeper localhost:2181/kafka-local --create --topic test-rep-one --partitions 6 --replication-factor 1
bin/kafka-topics.sh --zookeeper localhost:2181/kafka-local --create --topic test-rep-two --partitions 6 --replication-factor 3

Single thread, no replication
bin/kafka-run-class.sh org.apache.kafka.tools.ProducerPerformance --print-metrics --topic test-rep-one --num-records 6000000 --throughput 100000 --record-size 100 --producer-props bootstrap.servers=kafka_host:9092 buffer.memory=67108864 batch.size=8196

Single-thread, async 3x replication

gazoakley

pipeline {
    agent any

    parameters {
        string(name: 'environment', defaultValue: 'default', description: 'Workspace/environment file to use for deployment')
        string(name: 'version', defaultValue: '', description: 'Version variable to pass to Terraform')
        booleanParam(name: 'autoApprove', defaultValue: false, description: 'Automatically run apply after generating plan?')
    }
    
    environment {

YumaInaura

Golang — Understanding channel, buffer, blocking, deadlock and happy groutines.

I was so confused to understand behaviior of Golang channels, buffer, blocking, deadlocking and groutines.

I read Go by Example topics.

miguelmota

knowledge dump on container runtimes

KataContainers
- image coupled with kernel 
- light vm layer
- can run in nested virturalization environments if hardware supports and you can enable it in bios (ex. only bare metal EC2 instances, limits many cloud providers)
- slower startup time
- OCI compliant
- previously known as ClearContainers by Intel

strongjz

Tools

• Kops https://github.com/kubernetes/kops/blob/master/docs/README.md
• Kubectl https://kubernetes.io/docs/tasks/tools/install-kubectl/
• kubespy https://blog.pulumi.com/kubespy-trace-a-real-time-view-into-the-heart-of-a-kubernetes-service
• kops https://icicimov.github.io/blog/virtualization/Kubernetes-Cluster-in-AWS-with-Kops/

Presentations

stevenc81

Application Observability in Kubernetes with Datadog APM and Logging - A simple and actionable example

Last year I shared an example on how to realize application tracing in Kuberntes with Istio and Jaeger. After that, the industry has made some substantial headway on this front and we are seeing more vendor support as a result. At Buffer, since we primarily use Datadog for Kubernetes and application monitoring, it's only fitting to complete the circle with Datadog APM and Logging. I had a chance to create a small example for the team and would very much love to share with the community.

Okay, without further ado, let's dive in!

Installing Datadog agent

First thing first, in order to collect metrics and logs from Kubernetes an Datadog agent has to be installed in the cluster. The Datadog team ma

SwitHak

Security Advisories / Bulletins / vendors Responses linked to Log4Shell (CVE-2021-44228)

Errors, typos, something to say ?

• If you want to add a link, comment or send it to me
• Feel free to report any mistake directly below in the comment or in DM on Twitter @SwitHak

Other great resources

• Royce Williams list sorted by vendors responses Royce List
• Very detailed list NCSC-NL
• The list maintained by U.S. Cybersecurity and Infrastructure Security Agency: CISA List