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Madeesha’s Tech Space

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Published in FAUN Publication

·Jan 11

Docker images into Dockerfiles

There are some cases that we need to build Dockerfile using a docker image. Fortunately Docker images are not a blackbox, there are options to inspect the docker image and construct it’s Dockerfile. We can use a tool called “Whaler” which is designed to reverse engineer docker images into the…

Dockerfiles

2 min read

Docker images into Dockerfiles
Docker images into Dockerfiles
Dockerfiles

2 min read


Dec 12, 2022

Fixing “No space left on device” issue in an ec2 instance

It is really common to receive “No space left on device” if you don’t allocate enough disk space to an ec2 instance. It can be occurred due to an unexpected large log file too. However most of the time, we can’t even run any command or login to the ec2…

No Space

2 min read

Fixing “No space left on device” issue in an ec2 instance.
Fixing “No space left on device” issue in an ec2 instance.
No Space

2 min read


Published in FAUN Publication

·Dec 2, 2022

Sync AWS Secrets Manager secrets with Kubernetes to expose it as an environment variable

Using AWS secrets manager to store your Kubernetes secrets and retrieve data from the secrets manager give you couple of benefits. You don’t need to store your secrets as plaintext in configuration files, or use etcd access secrets through file system. You do not need to write custom codes to…

Secrets

3 min read

Sync AWS Secrets Manager secrets with Kubernetes to expose it as an environment variable
Sync AWS Secrets Manager secrets with Kubernetes to expose it as an environment variable
Secrets

3 min read


Dec 2, 2022

Capturing Heap Dumps of stateless Kubernetes pods before container termination and export to AWS S3

Kubernetes supports executing commands before the container termination. So if we need to capture heap dump in the event of container termination to analyze an issue, we can use a Kubernetes feature called pre-stop hook. …

Heapdump

2 min read

Heapdump

2 min read


Dec 1, 2022

Building EKS Kubernetes cluster with eksctl

“eksctl” is a very popular and useful tool which can be used to create and manage kubernetes clusters in AWS. It allows us to keep the cluster config as a file so that we know what are the configs that we use to spin up the clusters. If we use…

Eksctl

2 min read

Eksctl

2 min read


Jan 28, 2021

Do we need liveness and readiness probes in Kubernetes deployments?

One of the most common question with the Kubernetes deployment is, do we really need liveness or readiness probes? The simple answer to this question is ‘YES’, let’s dive into more details so that you will understand why. Liveness and readiness are the two main probe types available in Kubernetes…

Livenessprobe

3 min read

Do we need liveness and readiness probes in Kubernetes deployments?
Do we need liveness and readiness probes in Kubernetes deployments?
Livenessprobe

3 min read


Published in ITNEXT

·Dec 8, 2020

Create Lambdas in an existing VPC using CDK

By default lambda is not bound to a VPC and it can communicate with all the resources inside public subents. However, there are many use cases that you need to connect your lambda with databases, ec2 or internal services inside private subnets in a VPC. …

Lambda

2 min read

Create Lambdas in an existing VPC using CDK
Create Lambdas in an existing VPC using CDK
Lambda

2 min read


Published in ITNEXT

·Dec 3, 2020

Deploying Lambda Functions with Lambda layers using CDK

Serverless deployment needs to import libraries and dependencies into the Lambda functions. So the easiest way to import those third party dependencies to your function is to use Lamda Layers. Today I am going to show you how to use this lambda layer inside your CDK code. The example code…

Lambda

2 min read

Deploying Lambda Functions with Layer using CDK
Deploying Lambda Functions with Layer using CDK
Lambda

2 min read


Nov 24, 2020

Pass environment variables to lambda function deployed with AWS CDK

There are cases that we need to deal with passing information inside lambda function using environment variables.

Lambda

1 min read

Pass environment variables to lambda function deployed with AWS CDK
Pass environment variables to lambda function deployed with AWS CDK
Lambda

1 min read


Published in FAUN Publication

·Nov 13, 2020

Cross-account access to invoke AWS lambda using AWS CDK

If you are here, you may have a pretty good knowledge of how to use AWS CDK for defining cloud infrastructure in code and provisioning it through AWS. So let’s get started on how to grant permission to your lambda function to access the resources in another AWS account. let’s…

Lambda

3 min read

Lambda

3 min read

Madeesha’s Tech Space

Madeesha’s Tech Space

364 Followers

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