At work, we started using Kubernetes for stateless application. We frequently change the values of configmap/secrets especially in staging environments, however, this is still not baked in to k8s. How to do it? You have to replace a config to update it. For example, if you create a configmap like this: kubectl create configmap site-config --from-file=nginx.conf If you want to update that, you have to add the command above with...
I’m currently reading a book called Give and Take, it made me realize the value of sharing on my blog and in everyday life, I hope to write more about things that I can give value to others as well as a constant reminder of things that have given me lots of “Aha” moments in my career as a Software Developer. I really like the quote inside a quote in the book:...
So I have an infinite for loop however I want to use defer to make my intention clearer. Problem is this defer would never run because my function wouldn’t return. This, in turn, would give you memory leak. As neat as it could be, you can use a closure/anonymous function for this. for x := 0; x < 2; x++ { func() { defer fmt.Println(x) }() } Real world use case: So what I’m trying to do is to have an infinite polling using context on AWS SQS to add a timeout if something is wrong with SQS(this can be anything from network errors to aws being down, it can happen)....
So I want to run Elasticsearch on a very limited memory machine and I keep running on this error: cannot allocate memory. Did some research and found this docs on increasing max_map_count: echo "vm.max_map_count=262144" | sudo tee -a /etc/sysctl.conf sudo sysctl -w vm.max_map_count=262144 But the problem still persists, turns out memory still actually still not enough. I want don’t to upgrade the memory since I just want to test things out and I have no plan on running it on production....
This is the first time attending a conference outside my country. It was pretty exciting and scary because I’m going alone but nonetheless it was an amazing experience. I met a couple of interesting people and mostly I think it boosts more my confidence in traveling. The first day was all about learning Go for Intermediate developers by William Kennedy. I learned quite a lot, although I’ve been using Go in work for some time now, I admit that I still have a long way to go....