userbradley · userbradley · Jan 21, 2026
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 title: Airflow basics
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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 Airflow exists for the sole purpose of removing the need to write a bash or python script, set up a server with a cron job and then run your ETL pipeline. With Airflow, we're doing all this under one roof with monitoring and visualization built in.

 Airflow uses something called a DAG (Directed acyclic graph)

 Airflow is primarily written with Python scrips that compose of the below imports

    from airflow import DAG
                                                                                                                                                 from datetime import datetime

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 title: Ansible Basics
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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 I always create a folder for new tasks, so installing Nginx
@@ -15,7 +15,7 @@

 Change the directory to the task at hand, so here it's installing Nginx

 Create a file called ansible.cfg and place the below in the file. Subsitute out the hosts for the names, and the server addresses for either their hostname, should you have dns set up, or their IP if you do not.

    [defaults]
    hostfile = hosts

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 title: Python install using Ansible
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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 For some reporting, Ansible needs python!

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 title: Terraform - Building infrastructure
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
 ---
 
 ##### Picking your region

 First we need to set which cloud provider we will be using. In this example we will be using GCP

 Start with defining the cloud providor and then the version. Usually this is not needed!

 From Google cloud console, you will need to get the project ID. This can be found on the dashboard of the project.


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+reviewdate: '2026-12-20'
 title: Bulk delete from terraform state
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 ## Why

 When moving towards using terragrunt based approach, you will be migrating things to separate directories, and need
 to remove alot of things from the original state.

 ## How


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+reviewdate: '2026-12-20'
 title: "Failed to get existing workspaces: querying Cloud Storage failed: storage: bucket doesn't exist"
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+reviewdate: '2026-12-20'
 title: Google IAP in Terraform
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+reviewdate: '2026-12-20'
 title: Terraform
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+reviewdate: '2026-12-20'
 title: Openstack Terraform
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+reviewdate: '2026-12-20'
 title: Recursive delete of .terraform.lock.hcl
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+reviewdate: '2026-12-20'
 title: Recursive delete of .terraform directory
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+reviewdate: '2026-12-20'
 title: Remote data in terraform
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+reviewdate: '2026-12-20'
 title: Terraform lock file update
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+reviewdate: '2026-12-20'
 title: "Terraform plugin: Cannot locate module locally, unknown reason"
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+reviewdate: '2026-12-20'
 title: Terraform Provider for Kubernetes authenticate with `oidc-login`
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+reviewdate: '2026-12-20'
 title: Terraform refresh takes ages
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+reviewdate: '2026-12-20'
 title: Terraform Sleep
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 ## Why

 Some resources cant have things applied right after each-other, like creating 12 projects then assigning them IAM

 ## How to fix


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+reviewdate: '2026-12-20'
 title: Terraform Verbose
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+reviewdate: '2026-12-20'
 title: Tfupdate
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+reviewdate: '2026-12-20'
 title: To string from a list in terraform
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+reviewdate: '2026-12-20'
 title: Generate backend file for GCS with terragrunt
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+reviewdate: '2026-12-20'
 title: Terragrunt
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+reviewdate: '2026-12-20'
 title: Recursive delete of .terragrunt-cache directory
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 ## What

 Sometimes your file system can collect alot of `.terragrunt-cache` directories, or something just isn't right with terragrunt

 ## How


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+reviewdate: '2026-12-20'
 title: Required plugins are not installed - Terragrunt
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+reviewdate: '2026-12-20'
 title: Terragrunt auto approve
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+reviewdate: '2026-12-20'
 title: Terragrunt generate block
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@@ -16,7 +17,7 @@
 === "Overwrite"

    ``` terraform
    generate "exmaple" {
      path      = "example.tf"
      if_exists = "overwrite"
      contents = <<EOF
@@ -32,7 +33,7 @@
    The below will then skip re-creating the file if it exists already. This is useful for templating out repos.

    ``` terraform
    generate "exmaple" {
      path      = "example.tf"
      if_exists = "skip"
      contents = <<EOF

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 title: Terragrunt in GitHub Actions
-reviewdate: '2024-01-01'
+reviewdate: '2026-12-20'
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 ## Why

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+reviewdate: '2026-12-20'
 title: Terragrunt terraform auto -upgrade
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+reviewdate: '2026-12-20'
 title: Bookstack
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+reviewdate: '2026-12-20'
 title: "2024-04-18"
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 * Bread did not fill the tin
 * Bread was very doughy after baking

 ## Recipie followed

 [Tesco fresh white loaf](https://realfood.tesco.com/recipes/fresh-white-loaf.html)


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+reviewdate: '2026-12-20'
 title: "2024-05-18"
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@@ -8,7 +9,7 @@

 * Bread was very doughy after baking

 ## Recipie followed

 [Tesco fresh white loaf](https://realfood.tesco.com/recipes/fresh-white-loaf.html)


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+reviewdate: '2026-12-20'
 title: Bread
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+reviewdate: '2026-12-20'
 title: Car KB Section
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+reviewdate: '2026-12-20'
 title: Fix comfort close not working on Seat Leon
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+reviewdate: '2026-12-20'
 title: How to push start a SEAT leon
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+reviewdate: '2026-12-20'
 title: CKA - Page 1
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@@ -63,7 +64,7 @@
 |-------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------|
 | `kube-apiserver`                                      | At the top level, this is where `kubectl` connects to, as well as all the cluster based metrics, jobs, status updates and scheduling requests originate from. Also used for nodes to communicate to the master. | [kube-apiserver](https://kubernetes.io/docs/reference/command-line-tools-reference/kube-apiserver/)                   |
 | `etcd`                                                | Key value store of the cluster state, _fronted_ by the `kube-apiserver`. ETCD runs on the control plane nodes only.                                                                                             | [How does kubernetes use ETCD](https://www.techtarget.com/searchitoperations/tip/How-does-Kubernetes-use-etcd)        |
 | `kube-scheduler`                                      | Assigns pods to nodes, determines what nodes are available for placement of pods. Ranks each valid node and binds a pod to the node                                                                             | [kube-scheduler](https://kubernetes.io/docs/reference/command-line-tools-reference/kube-scheduler/)                   |
 | [`kube-controller-manager`](#kube-controller-manager) | A control loop that runs the _core_ controllers  (replication, endpoints, namespace, and serviceaccounts controller)                                                                                            | [kube-controller-manager](https://kubernetes.io/docs/reference/command-line-tools-reference/kube-controller-manager/) |
 | `node controller`                                     | Controls the lifecycle of nodes, their registration and status (`OutOfDisk`, `Ready`, `MemoryPressure` and `DiskPressure`                                                                                       | [What is a node](https://unofficial-kubernetes.readthedocs.io/en/latest/concepts/nodes/node/)                         |
 | `ReplicationController`                               | Ensures the specified number of `pod replicas` are running at any given time.                                                                                                                                   | [ReplicationController](https://kubernetes.io/docs/concepts/workloads/controllers/replicationcontroller/)             |

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+reviewdate: '2026-12-20'
 title: List of Controllers in Kubernetes
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+reviewdate: '2026-12-20'
 title: CKA Practice questions struggled
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+reviewdate: '2026-12-20'
 title: CKA Practice tests
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@@ -1,4 +1,5 @@
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+reviewdate: '2026-12-20'
 title: CKA
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+reviewdate: '2026-12-20'
 title: Useful CKA Kubectl Commands
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+reviewdate: '2026-12-20'
 title: Google Architect - page 1
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+reviewdate: '2026-12-20'
 title: Google cloud architect - page 2
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+reviewdate: '2026-12-20'
 title: Google cloud architect - page 3
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+reviewdate: '2026-12-20'
 title: GCP Load Balancer
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 title: Compute Engine
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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 #### HA

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 title: GCP Costs
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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 When using the cloud you want to keep the costs as low as possible

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 title: Google Compute Engine
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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 title: GCP
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
 ---
 
 #### [https://docs.google.com/document/d/1u6pXBiGMYj7ZLBN21x6jap11rG6gWk7n210hNnUzrkI/edit](https://docs.google.com/document/d/1u6pXBiGMYj7ZLBN21x6jap11rG6gWk7n210hNnUzrkI/edit)

@@ -1,6 +1,6 @@
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 title: Networking and LB
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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 title: Regions and Zones
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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 title: VM Bootstrapping, templates and Images
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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+reviewdate: '2026-12-20'
 title: GCP Security, exam topics
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+reviewdate: '2026-12-20'
 title: Google cloud Professional Security Engineer
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 title: Managing Gsuit
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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 #### Enabling services for everyone

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 title: MDM
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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 title: Gsuit - User administration
-reviewdate: '2022-01-01'
+reviewdate: '2026-12-20'
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 Global info can be set under `Account settings` but this has changed from \`Company profile\`

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+reviewdate: '2026-12-20'
 title: Terraform Exam questions review
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+reviewdate: '2026-12-20'
 title: AWS CLI
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 title: AWS SSO populate config
-reviewdate: '2026-11-06'
+reviewdate: '2026-12-20'
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 When using AWS with Identity centre you will have many roles available to use. Depending on your setup thre may be

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+reviewdate: '2026-12-20'
 title: awsctx
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