# Traefik Certificate Extractor

Forked from [DanielHuisman/traefik-certificate-extractor](https://github.com/DanielHuisman/traefik-certificate-extractor)

Tool to extract Let's Encrypt certificates from Traefik's ACME storage file. Can automatically restart containers using the docker API.

## Installation
```
git clone https://github.com/snowmb/traefik-certificate-extractor
cd traefik-certificate-extractor
```

## Usage
```
python3 extractor.py [FILE]
```
Default file is `./data/acme.json`. The output directories are `./certs` and `./certs_flat`.

## Docker
There is a Docker image available for this tool: [snowmb/traefik-certificate-extractor](https://hub.docker.com/r/snowmb/traefik-certificate-extractor/).
Example run:
```
docker run --name extractor -d \
  -v /opt/traefik:/app/data \
  -v ./certs:/app/certs \
  -v /var/run/docker.socket:/var/run/docker.socket \
  snowmb/traefik-certificate-extractor
```
Mount the whole folder containing the traefik certificate file as `/app/data`. The extracted certificates are going to be written to `/app/certs`.
The docker socket is used to find any containers with this label: `com.github.SnowMB.traefik-certificate-extractor.restart_domain=<DOMAIN>`.
If the domains of an extracted certificate and the restart domain matches, the container is restarted. Multiple domains can be given seperated by `,`.


## Output
```
certs/
    example.com/
        cert.pem
        chain.pem
        fullchain.pem
        privkey.pem
    sub.example.nl/
        cert.pem
        chain.pem
        fullchain.pem
        privkey.pem
certs_flat/
    example.com.crt
    example.com.key
    example.com.chain.pem
    sub.example.nl.crt
    sub.example.nl.key
    sub.example.nl.chain.pem
```