Shell

name: shell-pwd
nodes:
  - id: start
    operator: HTTPIn
    method: GET
    routes:
      - /shell-pwd
 
  - id: b2j
    operator: BufferToJSON
 
  - id: shell
    operator: Shell
    command: ls
    args:
      - -al
 
edges:
  - { from: start, to: b2j }
  - { from: b2j, to: shell }

curl -v http://localhost:2243/shell-pwd

[
  "{\"line\":\"Exactly one argument expected.\",\"type\":\"err\"}",
  "{\"line\":\"Usage: terraform [global options] state show [options] ADDRESS\",\"type\":\"out\"}",
  "{\"line\":\"\",\"type\":\"out\"}",
  "{\"line\":\"  Shows the attributes of a resource in the Terraform state.\",\"type\":\"out\"}",
  "{\"line\":\"\",\"type\":\"out\"}",
  "{\"line\":\"  This command shows the attributes of a single resource in the Terraform\",\"type\":\"out\"}",
  "{\"line\":\"  state. The address argument must be used to specify a single resource.\",\"type\":\"out\"}",
  "{\"line\":\"  You can view the list of available resources with \\\"terraform state list\\\".\",\"type\":\"out\"}",
  "{\"line\":\"\",\"type\":\"out\"}",
  "{\"line\":\"Options:\",\"type\":\"out\"}",
  "{\"line\":\"\",\"type\":\"out\"}",
  "{\"line\":\"  -state=statefile    Path to a Terraform state file to use to look\",\"type\":\"out\"}",
  "{\"line\":\"                      up Terraform-managed resources. By default it will\",\"type\":\"out\"}",
  "{\"line\":\"                      use the state \\\"terraform.tfstate\\\" if it exists.\",\"type\":\"out\"}",
  "{\"type\":\"exit\"}"
]

name: shell
nodes:
  - id: start
    operator: HTTPIn
    method: POST
    routes:
      - /shell
 
  - id: translate
    operator: MessageTranslator
    mode: json
    template: |
      { "command": data.data }
 
  - id: shell
    operator: Shell
    command: bash
    # args:
    #   - "-i"
 
edges:
  - { from: start, to: translate }
  - { from: translate, to: shell }

curl -v http://localhost:2243/shell -d '{"data": "echo hello; exit"}'

[
  "{\"line\":\"hello\",\"type\":\"out\"}",
  "{\"type\":\"exit\"}"
]                                                        

name: ws-shell
nodes:
  - id: start
    operator: HTTPIn
    ws: true
    method: ^(ANY)$
    routes:
      - /ws-shell
 
  - id: b2j
    operator: BufferToJSON
 
  - id: translate
    operator: MessageTranslator
    mode: json
    template: |
      { "command": data.data }
 
  - id: shell
    operator: Shell
    command: bash
    # args:
    #   - "-i"
 
edges:
  - { from: start, to: b2j }
  - { from: b2j, to: translate }
  - { from: translate, to: shell }