JSON import/export functions with AWS SSM Parameter Store

json2ssm - provides JSON import, export and delete functionality when working with AWS SSM parameter store while keeping original data types.

Motivation

AWS SSM Parameter Store is a great service for centrally storing and managing application parameters and secrets. However, seeding parameters often becomes an adhoc process when parameters are added manually or provisioned from different scripts which makes it difficult to promote applications between environments.

Using json2ssm parameters can be imported from a single or multiple JSON source files, additionally, it also provides export function to recursively retrieve parameters in JSON format for scenarios when it's easier to work with JSON structure, for example with Jenkins pipelines or inside ansible playbooks.

Examples

Let's start with an example and import following file into SSM parameter store:

$ cat ../../pkg/storage/testdata/colors.json
{
  "colors": [
    {
      "color": "black",
      "category": "hue",
      "type": "primary",
      "code": {
        "rgba": [255,255,255,1],
        "hex": "#000"
      }
    },
    {
      "color": "white",
      "category": "value",
      "code": {
        "rgba": [0,0,0,1],
        "hex": "#FFF"
      }
    },
    {
      "color": "red",
      "category": "hue",
      "type": "primary",
      "code": {
        "rgba": [255,0,0,1],
        "hex": "#FF0"
      }
    },
    {
      "color": "blue",
      "category": "hue",
      "type": "primary",
      "code": {
        "rgba": [0,0,255,1],
        "hex": "#00F"
      }
    },
    {
      "color": "yellow",
      "category": "hue",
      "type": "primary",
      "code": {
        "rgba": [255,255,0,1],
        "hex": "#FF0"
      }
    },
    {
      "color": "green",
      "category": "hue",
      "type": "secondary",
      "code": {
        "rgba": [0,255,0,1],
        "hex": "#0F0"
      }
    }
  ]
}

$ json2ssm put-json --json-file ../../pkg/storage/testdata/colors.json
 47 / 47 [=============================================================================>]  100%
 Import has successfully finished, 47 parameters have been (over)written to SSM parameter store. 

Retrieve the first color:

$ json2ssm get-json --path "/colors/0"
 8 / 8 [==============================================================================] 8s
{
 "category": "hue",
 "code": {
  "hex": "#000",
  "rgba": [
   255,
   255,
   255,
   1
  ]
 },
 "color": "black",
 "type": "primary"
}

Retrieve the first color's rgba value and store it in a file:

$ json2ssm get-json --path "/colors/0/code/rgba" > rgba.son
 4 / 4 [==============================================================================] 2s
$ cat rgba.json 
  [
   255,
   255,
   255,
   1
  ]

Installation

brew tap b-b3rn4rd/homebrew-tap
brew install json2ssm

Using go get

go get github.com/b-b3rn4rd/json2ssm

Usage

$ json2ssm --help
  usage: json2ssm [<flags>] <command> [<args> ...]
  
  Flags:
        --help     Show context-sensitive help (also try --help-long and
                   --help-man).
    -d, --debug    Enable debug logging.
        --version  Show application version.
  
  Commands:
    help [<command>...]
      Show help.
  
    put-json --json-file=JSON-FILE --encrypt [<flags>]
      Creates SSM parameters from the specified JSON file.
  
    get-json --path=PATH --decrypt
      Retrieves JSON document from SSM parameter store using given path (prefix).
  
    del-json --json-file=JSON-FILE
      Deletes parameters from SSM parameter store based on the specified JSON
      file.