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: …
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131 articles about cli development, tools, and best practices
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 …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=$(curl -s …How to Create an AWS ECR Repository in AWS CLI
If you need to create an Elastic Container Registry (ECR) Repository from the AWS CLI, you can do the following:
aws ecr create-repository \ …How to Scale Out an AWS ECS Service
When you create the Amazon ECS service, it includes three Amazon ECS task replicas. You can see this by using the describe-services command, which …
Read Article →How to Retrieve AWS ECS Cluster Information
For more information about the Amazon ECS cluster, run the following command. You will find the number of running tasks, capacity providers, and more. …
Read Article →[Solved] Read timeout on endpoint URL: “https://lambda.[region].amazonaws.com/2015-03-31/functions/[function-name]/invocations”
If you get the following error:
Read timeout on endpoint URL: …How to Remove a Passphrase from Certificate Key
If you have a Certificate Key that includes a Passphrase and you need to remove it, potentially to use it with AWS App Mesh, then you can do the …
Read Article →How to Check if a Volume is Mounted in Bash
If you need to check if a volume is mounted in a Bash script, then you can do the following.
How to Check Mounted Volumes
First we need to determine …
Read Article →How to Determine if a Bash Variable is Empty
If you need to check if a bash variable is empty, or unset, then you can use the following code:
if [ -z "${VAR}" ];
The above code will check …
Read Article →How to Order by File Size using the du command in Linux
If you use the du command to list all the file sizes on Linux:
du
# or
du -h # Human readable
Then you would have noticed that they are not ordered by …
Read Article →How to Resize an AWS EBS Volume in Bash
If you need to resize an EBS volume in AWS, you can do so using bash.
Step 1 – Create a bash file
Create a bash file called resize.sh:
#!/bin/bash …How to Setup Credential Helper for AWS CodeCommit
AWS CodeCommit is a git code repository service by Amazon Web Services.
You will want to clone your repository and setup your remotes using credential …
How to Approve a SageMaker model in AWS CLI
Sometimes you will need to manually approve a SageMaker model package from the AWS CLI.
Step 1 – Get a list of the available packages
aws sagemaker …How to Recursively Delete all Files in an AWS S3 Bucket
If you need to recursively delete all files in an AWS S3 bucket, then you can do the following:
aws s3 rm --recursive s3://your-bucket-name/foo/bar/ …How to get CPU Frequency in Linux
If you need to get the CPU Frequency in Linux, then you can run the following command:
watch -n.1 "grep \"^[c]pu MHz\" /proc/cpuinfo"
[Solved] Instance Profile already exists in Terraform
If you get the Instance Profile already exists error when running your Terraform apply, then it is either because an instance profile with that name …
[Solved] An error occurred (UnauthorizedException) when calling ListAccounts operation: Session token not found or invalid
If you are using aws configure sso to populate your ~/.aws/credentials file and you get the following error when you try and reauthorize, then you can …
How to Match Multiple Strings with grep
If you need to match a string in a file, then grep is your friend.
An example of using grep
Let’s take a file called somefile.txt
this
is
a
test …How to Invoke an AWS Lambda from the CLI
If you want to invoke an AWS Lambda from your CLI, then the best option is to have the AWS CLI installed.
Getting started with the AWS CLI – AWS …
Read Article →How to Exit if a Bash Variable in Not Set
Sometimes you might want to exit a command if a variable is not set in Bash.
You can do this as follows:
if [ -z "$VARIABLE_NAME" ]; then echo …