Allow specifying the traefik version for cert dumping

docs/compose/traefik/docker-compose.yml

@@ -25,6 +25,8 @@ services:
     # Make sure this is the same as the main=-domain in traefik.toml
     # !!! Also don’t forget to add "TRAEFIK_DOMAIN=[...]" to your .env!
       - DOMAIN=$TRAEFIK_DOMAIN
+      # Set TRAEFIK_VERSION to v2 in your .env if you're using Traefik v2
+      - TRAEFIK_VERSION=${TRAEFIK_VERSION:-v1}
     volumes:
       - "/data/traefik:/traefik"
       - "$ROOT/certs:/output"

optional/traefik-certdumper/run.sh

@@ -3,7 +3,7 @@
 function dump() {
     echo "$(date) Dumping certificates"
 
-    traefik-certs-dumper file --crt-name "cert" --crt-ext ".pem" --key-name "key" --key-ext ".pem" --domain-subdir --dest /tmp/work --source /traefik/acme.json > /dev/null
+    traefik-certs-dumper file --version ${TRAEFIK_VERSION:-v1} --crt-name "cert" --crt-ext ".pem" --key-name "key" --key-ext ".pem" --domain-subdir --dest /tmp/work --source /traefik/acme.json > /dev/null
 
     if [[ -f /tmp/work/${DOMAIN}/cert.pem && -f /tmp/work/${DOMAIN}/key.pem && -f /output/cert.pem && -f /output/key.pem ]] && \
 	diff -q /tmp/work/${DOMAIN}/cert.pem /output/cert.pem >/dev/null && \

towncrier/newsfragments/1011.feature

@@ -0,0 +1 @@
+Add support for Traefik v2 certificate dumping