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git: merge changes to a branch on a different remote
2 min read
It is quite common to have have several remote repositories, let's see how to merge a change to a branch on a remote that collides with one of our local branches.
28/12/2020
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terraform: Append to a list using concat
2 min read
To be able to conditionally append objects (or strings) to a list in terraform we must put it in another way: How do we dynamically generate a list of objects?
The answer is using we can use the concat() function
result = concat(["A"], ["B"])24/12/2020
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Managing a secret on kubernetes
3 min read
Most of the services we will be deploying on kubernetes are going to rely on having access to secrets to retrieve or push data to another service: Let's check how to work with the secrets on kubernetes
$ kubectl create secret Create a secret using specified subcommand. Available Commands: docker-registry Create a secret for use with a Docker registry generic Create a secret from a local file, directory or literal value tls Create a TLS secret Usage: kubectl create secret [flags] [options] Use "kubectl <command> --help" for more information about a given command. Use "kubectl options" for a list of global command-line options (applies to all commands).23/12/2020
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Change kubectl context to use another k8s cluster
2 min read
When you have on your .kube/config several clusters, you can choose to which cluster you want to connect by setting the appropriate context.
22/12/2020
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Unlocking remote terraform state
2 min read
When you are working with the terraform state on a S3 bucket if you cancel an operation you might end up with the lock not being released so you won't be able to perform any more changes (not even plan a new change!)
$ terraform plan Acquiring state lock. This may take a few moments... Error: Error locking state: Error acquiring the state lock: ConditionalCheckFailedException: The conditional request failed Lock Info: ID: **6dec3c3f-dea3-4232-60f5-5fe0647a41f6** Path: demo/terraform.tfstate Operation: OperationTypePlan Who: jordi.prats@pet2cattle.com Version: 0.12.29 Created: 2020-12-21 21:26:08.295375151 +0000 UTC Info: Terraform acquires a state lock to protect the state from being written by multiple users at the same time. Please resolve the issue above and try again. For most commands, you can disable locking with the "-lock=false" flag, but this is not recommended.21/12/2020
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