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Remove resources from the terraform state without deleting them
3 min read
Terraform keeps a list of managed objects on it's state, if for some reason we no longer want terraform to manage them we can remove them from the code base. Doing so we will see how terraform will try to delete them:
$ terraform plan (...) Plan: 0 to add, 0 to change, 10 to destroy. (...)30/04/2021
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kubectl uncordon: mark node as schedulable
1 min read
Using kubectl drain you can evict pods and disabled scheduling for a node so you can proceed with some maintenance. Once this maintenance is over we will need to allow pods to be scheduled to this node, removing the SchedulingDisabled:
$ kubectl get nodes NAME STATUS ROLES AGE VERSION nauvoo.pet2cattle.com Ready control-plane,master 19d v1.20.4+k3s1 tycho.pet2cattle.com Ready,SchedulingDisabled <none> 9m25s v1.20.4+k3s129/04/2021
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AWS CLI manage files on an S3 bucket
2 min read
Using the AWS CLI we can perform most operations for files sitting on a S3 bucket such as: list, copy, rename, cat, etc...
28/04/2021
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kubernetes: Adding initContainers to a pod
2 min read
When setting up a pod we might need to populate some shared storage or generate some configuration files to be used for the actual containers that are going to run on that pod. It might not make sense that some tools just required for the setting up the environment to be available on the final container. Futhermore, we might need to run some scripts with higher privileges than we really need for running the pod. The initContainers come handy for covering this use-cases.
27/04/2021
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git: Apply commit to another branch
2 min read
When we have a change (commit) that we want to apply to several branches we can use git cherry-pick.
26/04/2021
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