Let’s get started straight away, shall we ? Use pip to install testcontainers package pip install testcontainers testcontainers-python library has direct support for some widely used Docker images like Selenium, MySql, Oracle, RabbitMQ etc. But they didn’t implemented any wrapper to run DyanmoDB as TestContainer. …

If you haven’t read the previous article in this series — AWS DynamoDB with Python (Boto3) — Part 4 — Update Attribute & Delete Item from DynamoDB boto3 client offers support for DynamoDB batch operations via batch_writer() function. Below is the example for bulk insert with DynamoDB def insert_bulk_student_records(students: list)…

If you haven’t read the previous article in this series — AWS DynamoDB with Python (Boto3) — Part 3 — Query Items from DynamoDB DynamoDB Limitations on Update & Delete One important constraint we should remember about DynamoDB is Constraint 1 We must pass the PRIMARY KEY (PARTITION KEY & SORT KEY) while Updating an attribute in an…

If you haven’t read the previous article in this series — AWS DynamoDB with Python (Boto3) — Part 2 — Create Table & Insert Item Query Item from DynamoDB To select items from DynamoDB which has both Partition Key & Sort Key, we need to mandatorily supply at least the Partition Key. Sort Key…

If you haven’t read the previous article in this series — AWS DynamoDB with Python (Boto3) — Part 1 — Intro to DynamoDB & local Installation Boto3 — The AWS SDK for Python Boto3 is the official SDK developed in Python which can help us to create, configure & manage AWS services To see list of services…

Brief about Amazon DynamoDB According to official documentation, Amazon DynamoDB is a fully managed, serverless, key-value NoSQL database designed to run high-performance applications at any scale Core Components In DynamoDB, tables, items, and attributes are the core components table — Similar to a TABLE in RDBMS item — Similar to ROW in RDBMS TABLE. …

1. Source command Source command executes the contents of the file which is passed as the argument to it Sample Let’s say we have two Java versions — Java 8 & Java 11 We often switch between the versions by changing the JAVA_HOME in ~/.bash_profile

Let’s assume we are containerising an Angular application & we created Dockerfile at project’s root directory FROM nginx:1.17.1-alpine COPY nginx.conf /etc/nginx/nginx.conf COPY /dist/my-app /usr/share/nginx/html Lets build our Angular project first > ng build --prod After build, project directory looks like below

Java 11 came up with a cool feature to execute source code in single file without compiling it pre-hand Lets assume Vicky.java file contains following beautiful world changing source code class Vicky { public static void main(String[] args) { System.out.println("Hello World!"); } } For ages, we do the following >…