sup3rS3cretMes5age

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Published: Jun 10, 2024 License: MIT

README

sup3rS3cretMes5age

A simple, secure self-destructing message service, using HashiCorp Vault product as a backend.

self-destruct

Read more about the reasoning behind this project in the relevant blog post.

Now using Let's Encrypt for simple and free SSL certs!

Deployment

Testing it locally

You can just run docker-compose up -f deploy/docker-compose.yml --build or run make build: it will build the Docker image and then run it alongside a standalone Vault server.

By default, the deploy/docker-compose.yml is configured to run the webapp on port 8082 in cleartext HTTP (so you can access it on http://localhost:8082).

Optionally, you can modify the deploy/docker-compose.yml and tweak the options (enable HTTPS, disable HTTP or enable redirection to HTTPS, etc.). See Configuration options.

Production Deployment

We recommend deploying the project via Docker and a container orchestration tool:

  • Build the Docker image using the provided Dockerfile or run make image
  • Host it in a Docker registry (Docker Hub, AWS ECR, etc.)
  • Deploy the image (alongside with a standalone Vault server) using a container orchestration tool (Kubernetes, Docker Swarm, AWS ECS, etc.)

You can read the configuration examples below.

Security notice

Whatever deployment method you choose, you should always run this behind SSL/TLS, otherwise secrets will be sent unencrypted!

Depending on your infrastructure/deployment, you can have TLS termination either inside the container (see Configuration examples - TLS), or before e.g. at a load balancer/reverse proxy in front of the service. It is interesting to have TLS termination before the container so you don't have to manage the certificate/key there, but make sure the network between your TLS termination point and your container is secure.

Helm

For full documentation for this chart, please see the README

Configuration options

  • VAULT_ADDR: address of the Vault server used for storing the temporary secrets.
  • VAULT_TOKEN: Vault token used to authenticate to the Vault server.
  • SUPERSECRETMESSAGE_HTTP_BINDING_ADDRESS: HTTP binding address (e.g. :80).
  • SUPERSECRETMESSAGE_HTTPS_BINDING_ADDRESS: HTTPS binding address (e.g. :443).
  • SUPERSECRETMESSAGE_HTTPS_REDIRECT_ENABLED: whether to enable HTTPS redirection or not (e.g. true).
  • SUPERSECRETMESSAGE_TLS_AUTO_DOMAIN: domain to use for "Auto" TLS, i.e. automatic generation of certificate with Let's Encrypt. See Configuration examples - TLS - Auto TLS.
  • SUPERSECRETMESSAGE_TLS_CERT_FILEPATH: certificate filepath to use for "manual" TLS.
  • SUPERSECRETMESSAGE_TLS_CERT_KEY_FILEPATH: certificate key filepath to use for "manual" TLS.
  • SUPERSECRETMESSAGE_VAULT_PREFIX: vault prefix for secrets (default cubbyhole/)

Configuration examples

Here is an example of a functionnal docker-compose.yml file

version: '3.2'

services:
  vault:
    image: vault:latest
    container_name: vault
    environment:
      VAULT_DEV_ROOT_TOKEN_ID: root
    cap_add:
      - IPC_LOCK
    expose:
      - 8200

  supersecret:
    build: ./
    image: algolia/supersecretmessage:latest
    container_name: supersecret
    environment:
      VAULT_ADDR: http://vault:8200
      VAULT_TOKEN: root
      SUPERSECRETMESSAGE_HTTP_BINDING_ADDRESS: ":80"
      SUPERSECRETMESSAGE_HTTPS_BINDING_ADDRESS: ":443"
      SUPERSECRETMESSAGE_HTTPS_REDIRECT_ENABLED: "true"
      SUPERSECRETMESSAGE_TLS_AUTO_DOMAIN: secrets.example.com
    ports:
      - "80:80"
      - "443:443"
    depends_on:
      - vault
Configuration types
Plain HTTP
VAULT_ADDR=http://vault:8200
VAULT_TOKEN=root

SUPERSECRETMESSAGE_HTTP_BINDING_ADDRESS=:80
TLS
Auto TLS
VAULT_ADDR=http://vault:8200
VAULT_TOKEN=root

SUPERSECRETMESSAGE_HTTPS_BINDING_ADDRESS=:443
SUPERSECRETMESSAGE_TLS_AUTO_DOMAIN=secrets.example.com
Auto TLS with HTTP > HTTPS redirection
VAULT_ADDR=http://vault:8200
VAULT_TOKEN=root

SUPERSECRETMESSAGE_HTTP_BINDING_ADDRESS=:80
SUPERSECRETMESSAGE_HTTPS_BINDING_ADDRESS=:443
SUPERSECRETMESSAGE_HTTPS_REDIRECT_ENABLED=true
SUPERSECRETMESSAGE_TLS_AUTO_DOMAIN=secrets.example.com
Manual TLS
VAULT_ADDR=http://vault:8200
VAULT_TOKEN=root

SUPERSECRETMESSAGE_HTTPS_BINDING_ADDRESS=:443
SUPERSECRETMESSAGE_TLS_CERT_FILEPATH=/mnt/ssl/cert_secrets.example.com.pem
SUPERSECRETMESSAGE_TLS_CERT_KEY_FILEPATH=/mnt/ssl/key_secrets.example.com.pem

Screenshot

supersecretmsg

Contributing

Pull requests are very welcome! Please consider that they will be reviewed by our team at Algolia.

Thanks

This project is heavaily depandent on the amazing work of the Echo Go Web Framework and Hashicorp Vault.

This project is certified Awesome F/OSS

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