add subcommand for actionners + outputs + notifiers

[Issif]

❯ go run .
Falco Talon is a Response Engine for managing threats in Kubernetes 
It enhances the solutions proposed by Falco community with a dedicated, 
no-code solution. With easy rules, you can perform actions over compromised pods.

Usage:
  falco-talon [command]

Available Commands:
  actionners  Manage the actionners
  completion  Generate the autocompletion script for the specified shell
  help        Help about any command
  notifiers   Manage the Notifiers
  outputs     Manage the Outputs
  rules       Manage Falco Talon rules
  server      Start Falco Talon server
  version     Print version of Falco Talon.

Flags:
  -c, --config string       Falco Talon Config File (default "/etc/falco-talon/config.yaml")
  -h, --help                help for falco-talon
  -r, --rules stringArray   Falco Talon Rules File (default [/etc/falco-talon/rules.yaml])

Use "falco-talon [command] --help" for more information about a command.

❯ go run . actionners list
--- kubernetes:terminate ---

name: terminate
category: kubernetes
description: Terminate a pod
source: syscalls
continue: false
use_context: false
allow_output: false
require_output: false
required_output_fields:
    - k8s.ns.name
    - k8s.pod.name
parameters:
    grace_period_seconds: 0
    ignore_daemonsets: false
    ignore_statefulsets: false
    min_healthy_replicas: ""
permissions: |
    apiVersion: rbac.authorization.k8s.io/v1
    kind: ClusterRole
    metadata:
      name: falco-talon
    rules:
    - apiGroups:
      - ""
      resources:
      - pods
      verbs:
      - get
      - delete
      - list
    - apiGroups:
      - apps
      resources:
      - replicasets
      verbs:
      - get
example: |
    - action: Terminate the pod
      actionner: kubernetes:terminate
      parameters:
        grace_period_seconds: 5
        ignore_daemonsets: true
        ignore_statefulsets: true
        min_healthy_replicas: 33%

--- kubernetes:label ---

name: label
category: kubernetes
description: Add, modify or delete the labels of the pod
source: syscalls
continue: true
use_context: false
allow_output: false
require_output: false
required_output_fields:
    - k8s.ns.name
    - k8s.pod.name
parameters:
    labels (required): {}
    level: pod
permissions: |
    apiVersion: rbac.authorization.k8s.io/v1
    kind: ClusterRole
    metadata:
      name: falco-talon
    rules:
    - apiGroups:
      - ""
      resources:
      - pods
      verbs:
      - get
      - update
      - patch
      - list
example: |
    - action: Label the pod
      actionner: kubernetes:label
      parameters:
        level: pod
        labels:
          suspicious: true

❯ go run . outputs list
--- local:file ---

name: file
category: local
description: Store on local file system
parameters:
    destination (required): ""
example: |
    - action: Get logs of the pod
      actionner: kubernetes:download
      parameters:
        tail_lines: 200
      output:
        target: local:file
        parameters:
          destination: /var/logs/falco-talon/

--- minio:s3 ---

name: s3
category: minio
description: Store on Minio
parameters:
    bucket (required): ""
    prefix: ""
example: |
    - action: Get logs of the pod
      actionner: kubernetes:download
      parameters:
        tail_lines: 200
      output:
        target: minio:s3
        parameters:
          bucket: falco-talon
          prefix: /files

❯ go run . notifiers list
---  ---

name: k8sevents
description: Create a Kubernetes Event
permissions: |
    - apiGroups:
      - ""
      resources:
      - events
      verbs:
      - get
      - update
      - patch
      - create

---  ---

name: slack
description: Send a message to Slack
parameters:
    footer: http://github.com/falco-talon/falco-talon
    format: long
    icon: https://upload.wikimedia.org/wikipedia/commons/2/26/Circaetus_gallicus_claw.jpg
    username: Falco Talon
    webhook_url (required): ""
example: |
    notifiers:
      slack:
        webhook_url: "https://hooks.slack.com/services/XXXX"
        icon: "https://upload.wikimedia.org/wikipedia/commons/2/26/Circaetus_gallicus_claw.jpg"
        username: "Falco Talon"
        footer: "https://github.com/Falco-Talon/falco-talon"
        format: long