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  • Fix docker login 'error saving credentials: error storing credentials - err: exit status 1' (AWS ECR on macOS, Windows, Linux and WSL)

    calendar Oct 2, 2022 · 13 min read  ·
    Last Modified : Oct 10, 2026
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    Fix docker login 'error saving credentials: error storing credentials - err: exit status 1' (AWS ECR on macOS, Windows, Linux and WSL)

    This is a troubleshooting blog post on how to fix the following error when running aws ecr get-login-password --region <region> | docker login ... to log in to AWS Elastic Container Registry - 1Error saving credentials: error storing credentials - err: exit status 1, out: `Post …


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  • Terraform Guide - Docker Containers & AWS ECR(elastic container registry)?

    calendar Sep 28, 2022 · 13 min read  ·
    Last Modified : Sep 28, 2022
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    Terraform Guide - Docker Containers &amp; AWS ECR(elastic container registry)?

    Terraform is the most popular IaC(Infrastructure as Code) tool for provisioning your cloud infrastructure on AWS, GCP and Azure. Terraform capabilities are not limited to cloud infrastructure instead you can use Terraform for other container infrastructure provisioning also. In this blog post, we will take a look at …


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  • How to generate an SSH key in Terraform with tls_private_key and register it as an AWS key pair

    calendar Sep 19, 2022 · 10 min read · Terraform  ·
    Last Modified : Nov 1, 2026
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    How to generate an SSH key in Terraform with tls_private_key and register it as an AWS key pair

    TL;DR TL;DR Three resources do the whole job: tls_private_key creates the key pair, aws_key_pair registers the public key with AWS, and local_sensitive_file writes the private key to disk with file_permission = "0600". AWS never receives the private key. aws_key_pair takes only public_key, so pass it …


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  • How to fix-Terraform Error acquiring the state lock ConditionalCheckFiledException?

    calendar Sep 12, 2022 · 3 min read  ·
    Last Modified : Sep 12, 2021
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    How to fix-Terraform Error acquiring the state lock ConditionalCheckFiledException?

    It might be possible that you are in the middle of running terraform plan or terraform apply command but unfortunately, you ended up with the error - Error locking state: Error acquiring the state lock: ConditionalCheckFailedException: The conditional request failed. Here is one of the same errors which I have faced …


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  • Terraform Templates Explained - templatefile(), .tftpl Files, Loops and If Directives, with Real Rendered Output (EC2 user_data and IAM policy examples)

    calendar Sep 9, 2022 · 19 min read  ·
    Last Modified : Oct 17, 2026
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    Terraform Templates Explained - templatefile(), .tftpl Files, Loops and If Directives, with Real Rendered Output (EC2 user_data and IAM policy examples)

    In this blog post, we are gonna talk about Terraform templates. If you have ever needed to generate a cloud-init script, a JSON IAM policy, an nginx config or a Kubernetes manifest from your Terraform variables, then a Terraform template is the tool for the job. We are gonna cover the following topics for Terraform …


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  • Fixing terraform x509 certificate signed by unknown authority?

    calendar Sep 7, 2022 · 4 min read  ·
    Last Modified : Sep 7, 2022
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    Fixing terraform x509 certificate signed by unknown authority?

    The error x509: certificate signed by unknown authority is a very common problem faced by developers. terraform x509: certificate signed by unknown authority There are many reasons behind this issue - self-signed certificate not issued by a trusted certificate authority (CA) Expiration of the current certificate Due to …


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  • Learn $ grep command with 15 examples

    calendar Sep 5, 2022 · 11 min read  ·
    Last Modified : Sep 5, 2022
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    Learn $ grep command with 15 examples

    In this blog post we are gonna talk about one of the most basic command of linux which is grep, also we are going to see the 15 different examples on "How to use grep?". It doesn't matter you are an experienced developer or you are just a beginner out of these 15 examples you're just gonna learn something …


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  • AWS S3 - How to host static website?

    calendar Aug 24, 2022 · 10 min read  ·
    Last Modified : Aug 24, 2022
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    AWS S3 - How to host static website?

    Websites differ in the type of content they offer. The content can be divided into two categories, static and dynamic. A website built on static content consists of - HTML files Images Javascript CSS And it does not change based on user interaction. No matter how many times a user visits a static website, the content …


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  • AWS ECS & Fargate - How to deploy docker container

    calendar Aug 17, 2022 · 6 min read  ·
    Last Modified : May 9, 2023
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    AWS ECS &amp; Fargate - How to deploy docker container

    When developers are working to containerize an application, there are several steps involved. Getting the source code ready is merely half the job done. To package it in a container and get it into a runnable state, a developer will need to build a Dockerfile, which will contain all the necessary packages, runtimes, …


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  • How to push Docker Images to AWS ECR(Elastic Container registry)?

    calendar Aug 2, 2022 · 11 min read  ·
    Last Modified : Oct 2, 2022
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    How to push Docker Images to AWS ECR(Elastic Container registry)?

    Docker is all about containerizing your applications. For a developer, running containers locally through docker can be a bit overwhelming as there are multiple dimensions involved, such as ensuring that containers can communicate over a network, provisioning persistent storage, pushing, pulling, and copying images …


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Recent Posts

  • terraform console: Evaluate Expressions, Functions and cidrsubnet Without Applying Anything (Terraform 1.17)
  • Terraform tls_private_key: Generate SSH Keys and Self-Signed Certificates with the tls Provider (Terraform 1.17)
  • Stop Using .env Files for Secrets: Encrypt Them with sops and age Instead (Real Output, gitleaks Included)
  • Ansible on AWS: Zero-Downtime Deploys Behind an ALB, RDS, and an AI Postmortem (Project 2)
  • Kubernetes IP Address Planning: 22 Problems the Free IP Calculator Solves on EKS, GKE, AKS and On-Premises (kubeadm, Mirantis MKE, RKE2, OpenShift, Tanzu, Talos), with the Numbers and a Screenshot for Each
  • git rebase --exec Explained - Run Your Tests on Every Commit Before You Push, with Real Output, the Failure Path, and the Three Things That Bit Me
  • helm template Explained - Render a Helm Chart Locally Without a Cluster (Helm 4): Values Files, --set, --show-only, --output-dir, and the Traps That Bite
  • Should You Do a Cloud Certification? The Four Reasons I Tell People Not to Collect Them, What the Exams Cost in 2026, and the One Case Where a Certificate Is Worth the Money

Rahul Wagh

Jhooq
Its all about Open Source and DevOps, here I talk about Kubernetes, Docker, Java, Spring boot and practices.
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