Tag: docker

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Recreate pruned docker networks with docker-compose

So here is nice chain of docker errors and its solution.

1. Docker has reached its maximum of created networks and errors like this:

ERROR: could not find an available, non-overlapping IPv4 address pool among the defaults to assign to the network

The easiest (and most brute though) solution to this is to prune all networks, as suggested here on SO.

docker network prune

This will delete all networks that are not connected to currently active containers.
But this also means it will delete all networks of your not runnning dev projects.
(Which might be numerous as in my case.)

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Adminer for Sqlite in Docker

Recently i wanted to use Sqlite with Adminer in Docker and it turned out to be not so easy.
I actually thought i could just declare Adminer in a docker-compose.yml file with a volume mounted, similar as i would do for adminer with mysql.

Update: Today i would rather use the IntelliJ Database Tool for Sqlite administration.

But since Adminer is a popular hacking target they introduced a feature that does not allow to run adminer without a password, out of the box.
Sqlite database usually runs without password and dang, workaround needed!

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Not allowed to connect to Mysql error in docker

From time to time i receive this error while running the official mysql image in docker:

An exception occured in driver: SQLSTATE[HY000] [1130] Host ‘172.17.0.5’ is
not allowed to connect to this MySQL server

The reason for this is not quite clear yet but i usually resolve it like described here.
Note that all data stored in the project will be lost!
So this error is quite annyoing but luckily i work on fixtures so i can restore data easily.
These steps let me connect to the mysql container again, at least.

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Superleansilexplate Update v3

Some news from the Superleansilexplate:

  • v3 now uses symfony3 components
    Silex 1.3 supports symfony3 so lets use it :)
    Note: as symfony3 doesnt support php5.4 anymore, we dont either!
  • new ConsoleServiceProvider
    the one from knplabs that was used before seems to be unmaintained and wasnt matching the dependencies anymore.
    So i decided to take it over and renew it a bit. Check it out!
  • Docker support
    I started to use Docker as dev enviroment for my projects, so i added dev & prod Docker support.
    For the sake of simplicity it uses a single container with Apache and PHP7.
    If you have Docker and docker-compose on your machine just spin it up with docker-compose up and check on localhost:8088.

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