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App with Metrics, Logs and Distributed Traces
In a previous post, it details some information of how to setup some open source tooling to capture logs, retrieve metrics as well as capture distributed trace information from apps.
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Setting up Observability Tooling in GKE
Generally, most cloud providers come along with all the observability tooling that you need for your apps built-in with the platform. Some of the common observability tools such as logging, monitoring and nowadays, distributed tracing are usually made available and you can easily use said tools by reading up on the various documentation of how to setup each of these tooling.
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Using Envoy for GRPC Applications in Kubernetes
As of now, one of the common and easier way to have services communicate with each other would be over HTTP. In real world use cases, HTTPS is usually used (in order to ensure communications are secure) and this communication is done following some sort of REST framework.
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Notes for building apps to be deployed on client infrastructure
This is definitely not an exhaustive list of items to consider but definitely some of the more obvious features that client side users would look out for and consider when attempting to install such third party apps and operate it on their infrastructure.
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Using systemd to manage services
Systemd is a convenient set of tooling that can be used to manage services and applications on a linux server. It would be good to follow the filesystem when putting the files on the server https://en.
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Basic SSL Setup - server and client SSL certificate setup
Install nginx on the instance. We would also probably need to install vim as well to make it changes on nginx configuration. sudo apt update && sudo apt install -y nginx vim sudo su mkdir -p /etc/nginx/ssl cd /etc/nginx/ssl Create the following file in ca.
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Building Nginx RPM from source
NOTE: As software advances, some of the commands shown below may become depreciated/irrelevant. If one encounters errors - check the output logs to see what the issue is (e.g. missing library?
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Python Flask Apps in GKE
This are some notes in the case where one wants to deploy a bunch of python “microservices” to a GKE cluster. These notes emphasize on the basics rather than the various nuances of running a “production” grade python application.
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Deploying R Shiny Server to Cloud Run
Sometime earlier this year (2021), Google Cloud Run started to support websocket support - which is one of the critical components in order to be able to run a R Shiny Dashboard application.
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Lessons from building Slides to Video App - Part 1
A long time back, sometime in 2019 (which is almost an eternity ago ), I kind of did up an application that can take some slides saved in a pdf file and generate a video out of it.
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