[DockerAPI] Fix image, fixes #2008

data/Dockerfiles/dockerapi/Dockerfile

@@ -2,6 +2,7 @@ FROM alpine:3.8
 LABEL maintainer "Andre Peters <andre.peters@servercow.de>"
 
 RUN apk add -U --no-cache python2 python-dev py-pip gcc musl-dev tzdata openssl-dev libffi-dev \
+  && pip2 install --upgrade pip \
   && pip2 install --upgrade docker==3.0.1 flask flask-restful pyOpenSSL \
   && apk del python-dev py2-pip gcc
 

docker-compose.yml

@@ -374,8 +374,8 @@ services:
             - watchdog
 
     dockerapi-mailcow:
-      image: mailcow/dockerapi:1.22
-      restart: always
+      image: mailcow/dockerapi:1.23
+      restart: alway
       build: ./data/Dockerfiles/dockerapi
       oom_kill_disable: true
       environment: