UnBase64Manifest - ub64m

A tool to help me with kubernetes manifest wrangling. There is probably a simpler/more elegant way to do this using standard cli tools, but where's the fun in that? 😂

This tool will take a JSON or YAML document and decode all base64 encoded strings in the values for any field. It will then print the output as a new YAML file.

Example uses

$ cat tests/data/encoded-sample.yaml
---
Name: Cloud Configuration
Version: 1
Private: true
Account:
  User: Qm9iCg==
  Zones:
    - ZWFzdC0xLWEK
    - ZWFzdC0xLWIK
    - c291dGgtMi1hCg==
  ProjectName: Ym9icy1iaWctcHJvamVjdAo=
  Token: c3VwZXItc2VjcmV0Cg==
$ ./target/debug/ub64m tests/data/encoded-sample.yaml
---
Name: Cloud Configuration
Version: 1
Private: true
Account:
  User: Bob
  Zones:
    - east-1-a
    - east-1-b
    - south-2-a
  ProjectName: bobs-big-project
  Token: super-secret

$ kubectl create -f tests/data/kubernetes-configmap.yaml
$ kubectl get cm cloud-config -o yaml
apiVersion: v1
data:
  projectName: Ym9icy1iaWctcHJvamVjdAo=
  token: c3VwZXItc2VjcmV0Cg==
  user: Qm9iCg==
kind: ConfigMap
metadata:
  creationTimestamp: "2023-10-15T23:50:15Z"
  name: cloud-config
  namespace: default
  resourceVersion: "1776"
  uid: 7aeee832-4421-472e-a27d-83b4dece0c7f
[mike@gamebox] devel ~/dev/ub64m
$ kubectl get cm cloud-config -o yaml | ./target/debug/ub64m -
---
apiVersion: v1
data:
  projectName: bobs-big-project
  token: super-secret
  user: Bob
kind: ConfigMap
metadata:
  creationTimestamp: "2023-10-15T23:50:15Z"
  name: cloud-config
  namespace: default
  resourceVersion: "1776"
  uid: 7aeee832-4421-472e-a27d-83b4dece0c7f

Install using cargo

From $HOME in your terminal type the following:

cargo install ub64m

This will install the ub64m binary to the .cargo/bin directory, please note that this will need to be in your $PATH for easier use.