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Kubernetes: Search for rule granting certain action
3 min read
To be able to audit access permissions of users un a Kubernetes cluster we might be interested in searching for Roles or ClusterRoles that grants access to a certain object:
27/02/2023
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ArgoCD: Create Applications based on Pull Requests
4 min read
One of the key features of ArgoCD is the ApplicationSet, which provides a way to group multiple applications together and deploy them as a single unit. This allows you to manage and deploy multiple applications as a single entity, making it easier to coordinate deployments across multiple teams and applications.
We have several ways of generating Applications using and ApplicationSet, one of them is using the repositories Pull Requests.
22/02/2023
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AWS Console: Assuming roles
2 min read
If you are working with Amazon Web Services (AWS), you may have heard the term "assuming a role" in the context of one role using another role. This phrase refers to the process of temporarily taking on a specific set of permissions or privileges within an AWS account, in order to perform certain actions or access specific resources.
Since when we are using the AWS console we are using a specific role to have access, we can assume another role as well.
21/02/2023
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Unable to reach LocalStack when running it with colima
3 min read
If we try to run localstack using colima we might face the following error:
$ localstack status services ✖ ERROR: could not connect to LocalStack health endpoint at http://localhost:456620/02/2023
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Retrive the Windows uptime using the CLI
2 min read
System uptime can be useful for both casual competitions among friends to see who has the system with the longest uptime, as well as for more practical purposes such as identifying if a problem is caused by a system restart. In this article, we will explore two methods for obtaining the uptime on Windows systems.
16/02/2023
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Makefile's PHONY targets
2 min read
When we create Makefile targets, we are actually defining "file targets": Make will try to create these files running the commands we are defining:
target: commandBut sometimes we want to create some targets that do not represent physical files in the file system. A good example of that are the "clean" targets (as in
make clean)15/02/2023
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AWS Lambda: fork/exec /var/task/demo: exec format error: PathError null
2 min read
Executing a lambda function we might find that if fails with the following error:
2023-02-04T21:15:33.723+01:00 START RequestId: 7cb12d0d-1e8c-4a8d-485a-0f5dced9a545 Version: $LATEST 2023-02-04T21:15:33.723+01:00 fork/exec /var/task/demo: exec format error: PathError null 2023-02-04T21:15:33.724+01:00 END RequestId: 7cb12d0d-1e8c-4a8d-485a-0f5dced9a54513/02/2023
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AWS CLI in alpine
1 min read
The AWS CLI is a command line interface for interacting with AWS services. To install it in an Alpine-based container we can use pip instead of going thru all the trouble of downloading a zip and install it by running some script.
09/02/2023
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NFS: no_root_squash vs root_squash
2 min read
NFS (Network File System) protocol allows users to share files and directories over a network. When exporting a directory over NFS, there are two options that can be specified to control the behavior of root users: no_root_squash and root_squash.
08/02/2023
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Cross-compiling Go programs for multiple architectures and platforms
2 min read
One of Go's great features is the ability to cross-compile your code for different platforms and architectures, allowing you to run your applications on a variety of systems.
To do so we won't need to install emulators or additional tools, we are just going to use the go command
07/02/2023
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