Jan 2Just some “kubectl” shortcutsDISCLAIMER: These are just some simple aliases I’ve setup in my CLI for my personal convenience while working with kubernetes / kubectl / minikube / kustomize / etc # kubectl shortcuts alias kc="kubectl" alias kcg="kubectl get" alias kcga="kubectl get --all-namespaces" alias kcgy="kubectl get --output=yaml" alias kcgw="kubectl get --output=wide" alias kcge="kubectl get events" alias kce="kubectl edit" alias kcd="kubectl describe" alias kcdel="kubectl delete" alias kcl="kubectl logs" alias kcx="kubectl exec -it" alias kcvy="kubectl version -o=yaml" alias kcpf="kubectl port-forward" # <localhost-port>:<remote-port> alias kcrr="kubectl rollout restart deployment" alias kcrs="kubectl rollout status deployment" alias kck="kubectl kustomize" alias kcneat="kubectl neat | yq" alias kns="kubens" alias kctx="kubectx" alias kz="kustomize" alias kdd="kubedd" # minikube shortcuts alias mkb="minikube" # microk8s shortcuts alias mks="microk8s" alias mkc="microk8s kubectl" # multipass shortcuts alias mps="multipass"Kubernetes1 min readKubernetes1 min read
Published inairasia Super App Tech Blog·Dec 23, 2022Spinning up an API Gateway with DBLess Kong Gatewayby Syed Rakib Al Hasan What is an API Gateway? An API Gateway sits between the clients and the backends as a “proxy”. It takes requests from clients, forwards them to backend services, and returns with a response - meanwhile taking care of CORS validation, TLS termination, JWT authentication, header injection, session management, response transformation…Kong4 min readKong4 min read
Aug 2, 2022How to check the state of CORSCORS = Cross Origin Resource Sharing We’ve all run into this problem during web-development. We setup the CORS configuration on our server. We expect it to work. We use the browser to navigate to a page that uses CORS. It doesn’t work. A very simple cURL command can be used…Cors2 min readCors2 min read
Published inairasia Super App Tech Blog·Jun 8, 2022Goroutines & WaitGroups: Writing Concurrent Programs in GoLangby Syed Rakib It’s been a few days since I started exploring GoLang and I was impressed with how easily concurrency can be achieved in this language. This article demonstrates the use of Goroutines & WaitGroups for writing concurrent programs in GoLang. P.S. Note that concurrency is not parallelism. In…Go5 min readGo5 min read
Oct 12, 2021Block-style YAML vs Flow-style YAMLSo while updating the YAML for a gitlab configuration, I pushed in a YAML that looked like this (just a sample YAML for example only): default: image: nginx before_script: - echo "hello" - echo "world" stages: - test .env_vars: variables: ENV: $CI_ENVIRONMENT_NAME .test: stage: test when: always…Yaml3 min readYaml3 min read
Published inairasia Super App Tech Blog·Jun 20, 2021How to use CloudSQLProxy in Google Cloud Platform?Google’s CloudSQLProxy software (or CloudSQLAuthProxy as they recently started calling it) helps you set up a secure end-to-end connection between your computer and Google’s CloudSQL database servers. If you’d like to learn more about the “WHY” and the benefits of using CloudSQLproxy, check out my previous article of this series…Cloud Sql Proxy7 min readCloud Sql Proxy7 min read
Published inairasia Super App Tech Blog·Jun 7, 2021CloudSQLProxy: the wiser choice than Bastion for tunnelling to CloudSQLCloudSQLProxy (or CloudSQLAuthProxy as it is now known) is a secure software, developed & maintained by Google Cloud Platform (GCP) themselves, to connect to your CloudSQL database instances, without having to reveal any IP/Host address of your DB, and without requiring you to AllowList any incoming IP addresses (via “authorized…Sql5 min readSql5 min read
Apr 27, 2021How to determine GCP project of a GCS bucketThe Problem Statement When there are any issues with a GCS (google cloud storage) bucket in GCP (google cloud platform), our teams / SREs / executives would almost always know (either or all of) the following info about the bucket: bucket name public URL authenticated URL gsutil URL etc etc However, from these info, it’s not clear which GCP project (out of the gazillion GCP projects in an organization account) owns the specific bucket.Gc1 min readGc1 min read
Dec 12, 2020Use Certbot to provision LetsEncrypt SSL certificates — manually & quicklyThe problem statement You do not have an automated HTTPS/SSL certificate renewal system in place. You purchase the certificate files and install the certificate files yourself in your servers. However, this time you somehow missed the deadline and your HTTPS/SSL certificate got expired already. Your service is now unavailable to your consumers. This…Lets Encrypt3 min readLets Encrypt3 min read
Dec 12, 2020The problem of “shifting all items” in a Terraform arrayIn Terraform, it’s very easy to use count & count.index to create a series of similar resources from a single array. locals { roles = [ "roles/viewer", "roles/storage.admin", "roles/compute.admin", "roles/cloudsql.admin" ] } resource "google_project_iam_member" "group_access" { count = length(local.roles) role = local.roles[count.index] member = "group:devs@example.com" }Terraform6 min readTerraform6 min read
