Category
29 August 2023 Updated 29 August 2023
Docker Configs let's Docker Swarm manage our (static) configuration, no shared volume storage required.
25 August 2023 Updated 25 August 2023
Use the Docker-Compose service name only if the service is only on the Docker-Compose project internal network.
18 April 2023 Updated 19 April 2023
The Alpine Docker image makes it very easy to build a Cron container.
9 March 2023 Updated 9 March 2023
Avoid complex Bash scripts. Write your scripts in Python!
11 December 2022 Updated 11 December 2022
Use grep, sed, threading and Docker SDK for Python to log errors in a single file.
5 December 2022 Updated 5 December 2022
Docker best practices suggest logging to stdout but there are some gotchas.
11 August 2022 Updated 12 August 2022
When using the default networking bridge mode, you must make a service on the Docker host listen (also) to docker0.
26 May 2021 Updated 26 May 2021
The provider container creates a Docker network that can be used by a consumer container.
29 October 2020 Updated 29 October 2020
Docker-compose makes it very easy to use the same Docker image for your Flask application and the Celery worker(s).
30 September 2020 Updated 30 September 2020
By sharing the code and (optionally) templates we avoid making copies and reduce maintenance time.
22 September 2020 Updated 22 September 2020
Use a script to check the directories and files that will be included in your Docker image fast and easy.
9 December 2019
Docker bypasses ufw firewall settings and exposes ports to the outside world, a very serious security leak.
27 November 2019 Updated 27 November 2019
My Docker applications suddenly could not send mail using the host Postfix MTA. I fixed this by specifying a Docker default address pool, but it is better to do this before deployment.
13 November 2019
When using a Python Alpine Docker image we must add the tzdata package before we can set the timezone.
18 October 2019 Updated 18 October 2019
The method described requires you can be root, meaning it is not universal but may be sufficient if you are the system administrator.
28 June 2019 Updated 31 August 2019
Use the docker0 bridge IP address to connect to Postfix
10 March 2019 Updated 30 August 2019
With Docker multi-stage builds and Python wheels we compile the dependencies in the first stage and install them in the second stage
13 February 2019 Updated 31 August 2019
ISPConfig is a great hosting control panel but it does not support Python applications out of the box. This post shows how you can do it using Docker.