Update Base Image - Alpine 3.11

[christianbur]

Is your feature request related to a problem? Please describe. I am aware that no PRs are desired for new Docker Base Images. Due to a bug I'm still contacting you, maybe this could be the start of the update of the Alpine Base Image (3.10 -> 3.11).

According to the github, Alpine 3.10 is still used for acme and dockerapi. The current images on dockerhub are 3.11. I guess there was a local cache problem again.

# docker exec -it mailcowdockerized_acme-mailcow_1 sh -c "cat /etc/alpine-release"
3.11.6

# docker exec -it mailcowdockerized_dockerapi-mailcow_1 sh -c "cat /etc/alpine-release"
3.11.6

# docker images
REPOSITORY                TAG                 IMAGE ID            CREATED             SIZE
mailcow/acme              1.70                94144a1d2625        2 days ago          112MB
mailcow/dockerapi         1.36                0baf86154dcc        2 days ago          73.9MB

If there is already Alpine 3.11 in the world due to a bug, we can update the images to Alpine 3.11 officially.

Describe the solution you'd like New Dockerhub images, maybe update to Alpine 3.11

Additional context Avoiding the local cache problem

General overview of the used Base Images. Info: The owner of ipv6nat unfortunately refuses to make an update.

# mailcow container #########################################                                                                                                                                                                                                                 
             Alpine Linux v3.10"--3.10.3 -- ["'mailcowdockerized_ipv6nat-mailcow_1'"]                                                                                                                                                                                         
             Alpine Linux v3.10"--3.10.4 -- ["'mailcowdockerized_netfilter-mailcow_1'", "'mailcowdockerized_olefy-mailcow_1'", "'mailcowdockerized_php-fpm-mailcow_1'", "'mailcowdockerized_unbound-mailcow_1'", "'mailcowdockerized_watchdog-mailcow_1'"]                    
             Alpine Linux v3.11"--3.11.6 -- ["'mailcowdockerized_acme-mailcow_1'", "'mailcowdockerized_dockerapi-mailcow_1'", "'mailcowdockerized_memcached-mailcow_1'", "'mailcowdockerized_nginx-mailcow_1'", "'mailcowdockerized_redis-mailcow_1'"]                        
     Debian GNU/Linux 10 (buster)"--10.3 -- ["'mailcowdockerized_clamd-mailcow_1'", "'mailcowdockerized_dovecot-mailcow_1'", "'mailcowdockerized_postfix-mailcow_1'", "'mailcowdockerized_rspamd-mailcow_1'", "'mailcowdockerized_sogo-mailcow_1'", "'mailcowdockerized_solr-m
ailcow_1'"]                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             
         Ubuntu 18.04.4 LTS"--buster/sid -- ["'mailcowdockerized_mysql-mailcow_1'"]    

[andryyy]

Yep, thanks, I will fix it. I have seen it but too busy right now. Give me a few hours. :)

[andryyy]

And sorry, it is indeed the start of an update. Not yet pushed. My brain is a bit overloaded today.