How to create an AWS EC2 instance in CloudFormation
Create an EC2 Instance in CloudFormation
If you need to create an EC2 instance in CloudFormation, then you can do the following: …
Read Article →Technical Articles
In-depth guides, insights, and best practices for modern software engineering
How to Run Commands on an AWS ECS Cluster Task or Container
If you need to run a command, or set of commands on an AWS ECS cluster container, then you can do the following:
aws ecs execute-command --cluster …Understanding the Network Modes in AWS ECS
If using the EC2 launch type, the allowable network mode depends on the underlying EC2 instance’s operating system. If Linux, awsvpc, bridge, host and …
Read Article →How to Enable ContainerInsights on AWS ECS from the AWS CLI
If you need to enable Container Insights for an ECS cluster, by using the AWS CLI, then you can do the following:
aws ecs update-cluster-settings …AppMesh and ECS with Imported ACM certificates on Envoy Sidecar through EFS
Summary
This guide showcases the ability to use imported certificates from a third party provider (e.g. Venafi) in ACM, mount them in EFS and use them …
Read Article →How to Increase the disk size on a Cloud9 instance
If you need to increase the disk size of a Cloud9 instance, you can run the following script directly from the terminal in Cloud9:
pip3 install --user …How to Get the Instance Profile attached to an AWS EC2
If you need to get the IAM Role information from the attached EC2 role directly, you can do the following:
IAM_ROLE=$(curl -s …How to Create an AWS ECR Repository in AWS CLI
If you need to create an Elastic Container Registry (ECR) Repository from the AWS CLI, you can do the following:
aws ecr create-repository \ …How to Scale Out an AWS ECS Service
When you create the Amazon ECS service, it includes three Amazon ECS task replicas. You can see this by using the describe-services command, which …
Read Article →How to Retrieve AWS ECS Cluster Information
For more information about the Amazon ECS cluster, run the following command. You will find the number of running tasks, capacity providers, and more. …
Read Article →Types of communication in Amazon EKS
There are multiple types of communication in Amazon EKS environments. Lines of communication include the following:
- Interpod communication between …
[Solved] Read timeout on endpoint URL: “https://lambda.[region].amazonaws.com/2015-03-31/functions/[function-name]/invocations”
If you get the following error:
Read timeout on endpoint URL: …How to Remove a Passphrase from Certificate Key
If you have a Certificate Key that includes a Passphrase and you need to remove it, potentially to use it with AWS App Mesh, then you can do the …
Read Article →How to get Python logger to Print to std out
If you use Python’s logger as follows:
import logging
logger = logging.getLogger()
logger.setLevel(logging.DEBUG) # or logging.INFO
Perhaps you …
Read Article →How to Convert a String to an Integer in C
If you need to convert a String to an Integer in C, then you can do one of the following:
Option 1 – Use atoi()
int atoi(const char *str);
You can do …
Read Article →How to Convert an Integer to a String in C
If you need to convert an Integer to a String in C, then you can do one of the following:
Option 1 – Use sprintf()
int sprintf(char *str, const char …
How to append to an Array in Elasticsearch using elasticsearch-py
If you are using the Official ElasticSearch Python library (Docs), and you want to create an index:
doc = {
"something": "123a", …How to Copy Text to the Clipboard in Python
If you need to Copy Text to the Clipboard using your Python application code, then you can do the following:
Option 1 – Using pyperclip
First install …
Read Article →How to Read a PDF file in Python
If you need to read a PDF (Portable Document Format) file in your Python code, then you can do the following:
Option 1 – Using PyPDF2
from PyPDF2 …How to Convert HEX to RBG in Python
If you need to convert HEX (Hexadecimal) to RGB (Red-Green-Blue) in your Python code, then you can do the following:
Option 1 – Using the PIL library …
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How to Refer to a Null Object in Python
If you need to refer to a Null Object in your Python code, then you can do the following.
It is important to note that Python does not have a Null …
How to Convert Bytearray to String in Python
If you need to convert a Bytearray to a String in Python, then you can do the following:
This comes up when working with binary data from network …
Read Article →How to get the Hostname in Python
If you need to get the Hostname in your Python application, then you can do the following:
Option 1 – Using gethostname()
import socket …How to get the IP Address in Python
If you need to get the IP Address in your Python application, then you can do the following:
Option 1 – Using socket.gethostname()
import socket …