epiphany-wrapper-poc

PoC application to wrap containerised modules of epiphany

example run

general

e help

> e --help                          
E wrapper allows to interact with epiphany

Usage:
  e [command]

Available Commands:
  components   Allows to inspect and install available components
  environments Allows various interactions with environments
  help         Help about any command

Flags:
      --configDir string   config directory (default is .e)
  -d, --debug              enable debug loglevel
  -h, --help               help for e

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

components sub-command

e components help

> e components --help
This command provides way to:
 - list available components, 
 - install new component to environment
 - get information about component

Information about available components are taken from https://github.com/mkyc/epiphany-wrapper-poc-repo/blob/master/v1.yaml

Usage:
  e components [command]

Available Commands:
  info        Displays information about component
  install     Installs component into currently used environment
  list        Lists all existing components in repository

Flags:
  -h, --help   help for components

Global Flags:
      --configDir string   config directory (default is .e)
  -d, --debug              enable debug loglevel

Use "e components [command] --help" for more information about a command.

e components list

> e components list  
Component: c1:0.1.0
Component: luuk-c1:0.0.1

e components info

> e components info c1
Component:
 Name: c1
 Type: docker
  Component Version:
   Version: 0.1.0
   Image: docker.io/hashicorp/terraform:0.12.28
    Command:
     Name init
     Description initializes terraform in local directory
    Command:
     Name apply
     Description applies terraform in local directory

e components install

Use you created environment with e environment new e1

> e components install c1
Installed component c1 0.1.0 to environment e1

environments sub-command

e environments help

> e environments --help
TODO

Usage:
  e environments [command]

Available Commands:
  info        Displays information about currently selected environment
  new         Creates new environment
  run         Runs installed component command in environment
  use         Allows to select environment to be used

Flags:
  -h, --help   help for environments

Global Flags:
      --configDir string   config directory (default is .e)
  -d, --debug              enable debug loglevel

Use "e environments [command] --help" for more information about a command.

e environments new

> e environments new e1

no output expected

e environments info

Here used after command e components install c1

> e environments info    
Environment info:
 Name: e1
 UUID: ade1b8ad-3723-4f85-b51a-3cffa057b2c8
  Installed Component:
   Name: c1
   Type: docker
   Version: 0.1.0
   Image: docker.io/hashicorp/terraform:0.12.28
    Command:
     Name init
     Description initializes terraform in local directory
    Command:
     Name apply
     Description applies terraform in local directory

e environments use

> e environments use     
✔ e1 (ade1b8ad-3723-4f85-b51a-3cffa057b2c8, current)

e environments run

> e environments run c1 init
2020/07/28 15:39:17 [WARN] Log levels other than TRACE are currently unreliable, and are supported only for backward compatibility.
  Use TF_LOG=TRACE to see Terraform's internal logs.
  ----
Terraform initialized in an empty directory!

The directory has no Terraform configuration files. You may begin working
with Terraform immediately by creating Terraform configuration files.

configuration directory structure

After all command executed in previous section directory structure looks in similar way to:

> pwd
/Users/mateusz/.e
> tree -a
.
├── config.yaml
├── environments
│   └── ade1b8ad-3723-4f85-b51a-3cffa057b2c8
│       ├── c1
│       │   └── 0.1.0
│       │       ├── mounts
│       │       │   └── terraform
│       │       └── runs
│       │           └── 20200728-173415.915CEST.log
│       └── config.yaml
└── v1.yaml

7 directories, 4 files

Main config file contains:

> cat config.yaml 
version: v1
kind: Config
current-environment: ade1b8ad-3723-4f85-b51a-3cffa057b2c8

Used environment config file contains:

> cat environments/ade1b8ad-3723-4f85-b51a-3cffa057b2c8/config.yaml 
name: e1
uuid: ade1b8ad-3723-4f85-b51a-3cffa057b2c8
installed:
- environment_ref: ade1b8ad-3723-4f85-b51a-3cffa057b2c8
  name: c1
  type: docker
  version: 0.1.0
  image: docker.io/hashicorp/terraform:0.12.28
  workdir: /terraform
  mounts:
  - /terraform
  commands:
  - name: init
    description: initializes terraform in local directory
    command: init
    envs:
      TF_LOG: WARN
    args: []
  - name: apply
    description: applies terraform in local directory
    command: apply
    envs:
      TF_LOG: DEBUG
    args:
    - -auto-approve

TODO

There is a lot TODO's in a code which should be fixed