HowTo: enable termination protection for all EC2 instances not in autoscaling groups via aws cli

aws rds describe-db-instances | jq '.[][] | select(.DeletionProtection == false) | .DBInstanceIdentifier' | xargs -L1 -t aws rds modify-db-instance --deletion-protection --db-instance-identifier

When changing glibc versions, it's possible to end up with corrupt indexes in PostgreSQL.

Are My Indexes Affected?

If your database has...

If you have a single node elasticsearch instance and indices with replicas enabled your cluster state will be yellow. If you have replica shards they should be moved to a different node for high availability purposes. With a single node this can't...

If you end up with an Elasticsearch cluster which has a very different disk usage on it's nodes you can use these steps to rebalance the shards.

Before we begin it's important to understand how Elasticsearch defines [balance](https://www.elastic....

We have observed Lenovo laptops with nvidia graphics losing performance after they have been in use for a few minutes. While we have not been able to pinpoint exactly what triggered the performance loss, we have found it mostly correlated with hig...

Apply Test Driven Development(TDD) to the process of building container images by defining test before writing code and automate the testing process. Iterate through the TDD cycle while developing and running the tests later in continuous integrat...

If the project you're working on has, say, 39 repositories and counting in GitLab and you need all the repos checked out for some reason, here's how to do it.

Checking out all repos

1. Create a personal access token for GitLab that has the `A...

1. Install and configure the AWS Command Line Interface

2. Show existing certificates to test if the AWS Cli is working:

   $ aws iam list-server-certificates
   {
     "ServerCertificateMetadataList": [...
   

I'm creating certificate requests with this command:

openssl req -new -out www.example.com.csr -keyout www.example.com.key -newkey rsa:2048 -nodes

When I try to upload the certificate to AWS IAM I get this error:

$ aws iam upload-se...

A lot of web applications require being called over https, which is a good thing. It's possible to configure this requirement at the web- or proxy server level, where nginx or apache will just redirect every request on http to https. Som...