Merge #1074

1074: Update traefik-certs-dumper r=muhlemmer a=YouriT

## What type of PR?

bug-fix

## What does this PR do?

Remove a useless dependency & update the command line according to the [latest ldez/traefik-certs-dumper documentation](https://github.com/ldez/traefik-certs-dumper/blob/master/docs/traefik-certs-dumper_file.md).

Co-authored-by: Youri Tolstoy <ytolstoy@gmail.com>
Co-authored-by: Tim Möhlmann <muhlemmer@gmail.com>

optional/traefik-certdumper/Dockerfile

@@ -1,6 +1,6 @@
 FROM ldez/traefik-certs-dumper
 
-RUN apk --no-cache add inotify-tools util-linux bash docker
+RUN apk --no-cache add inotify-tools util-linux bash
 
 COPY run.sh /
 

optional/traefik-certdumper/run.sh

@@ -3,7 +3,7 @@
 function dump() {
     echo "$(date) Dumping certificates"
 
-    traefik-certs-dumper dump --crt-name "cert" --crt-ext ".pem" --key-name "key" --key-ext ".pem" --domain-subdir=true --dest /tmp/work --source /traefik/acme.json > /dev/null
+    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
 
     if diff -q /tmp/work/${DOMAIN}/cert.pem /output/cert.pem >/dev/null && \
 	    diff -q /tmp/work/${DOMAIN}/key.pem /output/key.pem >/dev/null ; then

tests/build.yml

@@ -30,9 +30,9 @@ services:
     image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}radicale:${MAILU_VERSION:-local}
     build: ../optional/radicale
 
-#  traefik-certdumper:
+  traefik-certdumper:
-#    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}traefik-certdumper:${MAILU_VERSION:-local}
+    image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}traefik-certdumper:${MAILU_VERSION:-local}
-#    build: ../optional/traefik-certdumper
+    build: ../optional/traefik-certdumper
 
   admin:
     image: ${DOCKER_ORG:-mailu}/${DOCKER_PREFIX:-}admin:${MAILU_VERSION:-local}