Hello to all the readers! Find size of Postgresql database One of my database was growing in size thereby consuming the disk. I got to know which database was taking how much of the disk space. And here is how to find out the size of each PostgreSQL database. The above SQL query just finds…
Hello to all the readers. I have learnt about the cumulative flow diagram in Jira. And thought to pen down my learning. Following is a sample cumulative flow diagram. This diagram shows number of issues in different statuses over a period of time. This means issues placed in the columns of Jira board are taken…
Hello to all the readers. Unified Payment Interface i.e. UPI has a limit on the amount of money that can be transferred per day. This limit is Rs. 1 lakh per day. If this limit is reached, then we cannot make more payments on that day. This limit is set by NPCI National Payments Corporation…
Hello to all the readers! This post is all about understanding Index funds and whether to invest in index funds or not. And who all should actually considering such investment option. What is an Index in Stock Market? An index is a list of companies. Sensex is the index of top 30 companies of India….
Hello to all the readers! Docker image is built in layers. Each instruction that is written in Dockerfile translates into an image layer by the builder. When the image is re-built, builder will re-use layers from earlier builds. If any layer is unchanged, then that layer is picked up from the build cache. However, if…
Hello to all the readers! While I was learning Docker, I could see that in most of the places, alpine image of Node.js or Golang is used. Therefore, I went and studied what is an alpine image. The alpine docker image is based on Alpine linux. It is a very small, minimal image with complete…
Hello to all the readers! There is multi stage build in which the build time and run time dependencies are separated. For example JDK is required to build java app but JDK is not required in final image to be run. We copy only executable files from build stage that has to run thereby reducing…
Hello to all the readers! I have setup multi container applications separate using docker run commands. But docker offers a nice way to setup multi container apps using Docker compose. Here we define each service in a docker-compose.yml file and then a single command spins up everything for us. The docker-compose.yml for mysql and app…
Hello to all the readers! Well there is a scenario that we have to run mysql database along with the application. And the container concept says that these two services should be run independently in their own container. But then there is a need that both the containers can talk to each other. For that…
Hello to all the readers! There is another concept of bind mounts in docker that allows to share the host machine directory inside docker. The contents changed on the host machine or inside docker are reflected on both sides. Here is how to use a bind mount. Now if we make changes in this directory…