• kubernetes services: externalName

  2 min read

  
  

  One of kind of Service objects on kubernetes is extenalName. It creates a CNAME DNS entry to point to an external DNS service. For exemple:

  kind: Service
  apiVersion: v1
  metadata:
    name: ensvc
  spec:
    type: ExternalName
    externalName: pet2cattle.com
  

  29/01/2021

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• Getting a terraform plan in json format

  2 min read

  
  

  Starting terraform v0.12 we can get the terraform plan in json format. To do so, first we will need to save the plan to a file:

  $ terraform plan -out demo.plan
  

  28/01/2021

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• How to conditionally include a resource in terraform

  1 min read

  
  

  On terraform modules sometimes it make sense to completely get rid of some resources using some condition. Since we don't have an if statement, we can use count instead

  27/01/2021

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• Ansible: Test a task by applying it locally

  2 min read

  If you need to test a set of ansible tasks without having to go into much trouble, you can use ansible-playbook to do a quick local test. To do so you just need ansible installed and create a yaml file with the playbook to execute using the following format:

  ---
  - hosts: 127.0.0.1
    tasks:
    - name: mkdir /tmp/test
      command: 
        cmd: mkdir -p /tmp/test
  

  26/01/2021

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• kubectl: set a given namespace as your default

  2 min read

  
  

  When you need to work on some specific namespace it is quite annoying yo have to specify at each kubectl command the same namespace over and over again. It's much easier to change the current context to use another namespace by default.

  25/01/2021

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