Is making kubernetes masters schedulable a really bad idea?
It's a cash strapped start-up. What are the worst consequences of running only three nodes, three schedulable masters? Are there some ways can one mitigate against the risks?
View ArticleDoes HA-git exist?
For the second time in three months, bitbucket is downhttps://status.developer.atlassian.com/Now I wonder whether HA-git is possible or we should switch. Thanks to this it will be hard to finish the...
View ArticleMysql with Kubernetes
I am converting a webapp from monolithic to kubernetes based architecture.But how can mysql be persistent with data when we have 2 mysql pods in each of 2 differnet nodes?I think we can mount a volume...
View ArticleWhat are vertical scalability limits of JFrog Artifactory Pro?
The essential feature of JFrog Enterprise over JFrog Pro (X) is that it introduces high availability and site replication support.Obviously, operations in geographically distributed organizations with...
View ArticleHow to create high availability databases?
With modern techniques, it's relatively trivial to create a clustered, high-availability solution for webservers by using docker (or comparable) to handle the front-end serving of pages to users.e.g....
View ArticleIf we are using Kubernetes do we need to implement HA on both the...
Is this something that's going to be covered at the application level with pod autoscaling? Or should we implement both horizontal pod autoscaling and infrastructure high availability within our cloud...
View ArticleWhen setting up HashiCorp Vault in HA mode, is it normal that you have to...
My goal has been to setup Vault in HA mode.Based on the docs, I was under the assumption that if you had a node that is in 'standby' it would forward to the active node, thus not having to unseal...
View ArticleWhen should an application be copied to a new region?
I'm taking my first course For AWS cloud practitioner and I am curious:The case: I have a single, client-facing application hosted on an EC2 instance. Let's keep it simple and say it's brochureware,...
View ArticleHow to handle availability zones and failover with ansible? Is it even within...
I am only getting started with ansible.I want to set up a new development infrastructure with the infrastructure as code principle. First thing I'll have to prove is a Jenkins instance with a few nodes...
View ArticleWhat are best practices for running Hashicorp's Vault in terms of high...
The Production Hardening document indicates how to harden Vault for production purposes, but what if Vault is run on for example Digital Ocean and the platform is unavailable or the disk gets corrupted?
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Recommended Design - Communication among Jenkins + Vault + App
Design A: CD tool communicate with Vault to fetch App secrets on its behalfJenkins ( CD tool ) computes the Vault path according to the app/project & according to which environment the app will be...
View ArticleWhat is a good strategy to keep my site online when S3 goes offline?
What is a good strategy to keep my site online when S3 goes offline?If S3 US East 1 goes offline, how should I have my app configured/structured to prevent that taking my entire site offline?What are...
View ArticleIs cross-region replication 100% fool-proof for S3 region outages? [duplicate]
Amazon S3 has an option of cross-region replication which should be pretty fault-tolerant against region/zone outages.Does that mean those who are ranting about the outage did not make use of this...
View ArticleHow can I simulate failure of an AWS Availability Zone?
In order to test that our load balancers and Multi-AZ RDS instances are working the way I'd expect them to, I'd like to simulate failure of an AWS Availability Zone.Short of locating one of the...
View ArticleMeasure service unavailability during upgrade
I am deploying a microservices - based application using an orchestrator (Rancher specifically).During the service upgrade (when new images are being pulled and services re-discover one another), there...
View ArticleDelete generated configmaps when executing Helm uninstall
I am trying to deploy Flink on Kubernetes using Helm.The problem is when I try to delete the chart, there are configmaps (flink-cluster-dispatcher-leader, flink-cluster-restserver-leader ..) which are...
View ArticleLoadBalancer in front of on-prem kubernetes
I'm struggling to create a setup with external LoadBalancer for a microk8s cluster in our data-center. The cloud we're building uses microk8s on-prem,2 different data centers and I thought an external...
View ArticleKeepalived docker container crashing
This is my new experience with using keepalived,I am trying to start docker container of keepalived but it is crashing the error log doesn't explain much:*** Running...
View ArticleAvailability zone testing ways?
I want to test my AZ redundancy and i׳m wondering what is the difference between logical shut down the interfaces to hard shut down(turn of the electrical source for the AZ.Can anyone help to...
View ArticleWhen do I scale services on Azure DevOps?
I have created azure devops with a few organizations/projects in it. Do I need to scale or replicate it across different datacenters so all the developers across the globe can access it? When would I...
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