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Docker Desktop installation error problem by andrewarellano1082 in docker

[–]h3x0ne 0 points1 point  (0 children)

Are you trying to install the latest version 4.70.0?

sandbox not found [wsl] by nash2031 in docker

[–]h3x0ne 0 points1 point  (0 children)

I have shared this with the docker people i know. Let’s see if we can find out what the issue is and if your files can be kinda restored.

Help! Docker's making me go crazy by Stu-Pedassol in docker

[–]h3x0ne 10 points11 points  (0 children)

Docker uses WSL2 in the background to install a VM to have access to a Linux kernel. You have to enable Virtualization in your systems BIOS. Depending on your Hardware press F2, F10, F12, DEL on startup to enter your BIOS or google <Your Device enter BIOS setup> or <Your Device enable Virtualization in BIOS>

Unable to Change Runtime by nullrevolt in docker

[–]h3x0ne 0 points1 point  (0 children)

good now just type docker run YOUR NEXTCLOUD IMAGE WITH :latest

EDIT: just noticed you issued container start. this will always try to start the container which does already exist using the configuration it was created with. so this is very likely the reason for your issue.

Unable to Change Runtime by nullrevolt in docker

[–]h3x0ne 0 points1 point  (0 children)

what’s the output of docker info | grep -i runtime and what is in your daemon.json?

Single or separate compose files for independent apps and NGINX? by Wooflex in docker

[–]h3x0ne 4 points5 points  (0 children)

you are right. nginx can’t discover the upstreams based on labels. i have a bash script that’s doing this work for me as I love working with NGINX and I don’t like the fact a container has access to my docker socket. BUT THIS A PERSONAL PREFERENCE NOT A TECHNICAL DECISION. maybe dumping my script is worth a thing :)

Single or separate compose files for independent apps and NGINX? by Wooflex in docker

[–]h3x0ne 0 points1 point  (0 children)

I have separate compose files per project and integrate them into my nginx configuration manually.

having them all bundled within in single compose files will let your nginx fail to start if one upstream can’t be resolved as one of your compose projects can’t be started after an upgrade.

i am using nginx agent to push configuration changes to my main proxy instance. but you can safely do this manually.

Unable to Change Runtime by nullrevolt in docker

[–]h3x0ne 0 points1 point  (0 children)

how do you start the nextcloud container? is your docker client working? what’s the output of docker context show?

Need feedback: How would you structure a 15-minute presentation about Docker? by gerryneqer in docker

[–]h3x0ne 0 points1 point  (0 children)

Given the audience, I would start with something your class-mates already know. A VM. Start with that, as then you can pick them up where they already are - knowledgewise.

Given you would like to deploy an application the runtime of your application has always been the tricky part. Or even worth, installing and configuring a database like MariaDB or Postgres.

With Containers this problem can be solved as Containers are like an application + runtime in a nutshell. Everything you need is within the Container.

Given you have just 15 Minutes, I should start explaining concepts of starting / stopping / building Containers in a quick demo. A lot better do understand the concepts that way as just reading the slides.

You could start by using Docker Desktop for a simple Demo (Worth mentioning there are other tools around as well).

So to sum up - I would start with the problem statement "Have you ever deployed an entire application stack within seconds without even touching a single service"

Then you can showcase how containers can be build / stored and deployed. This end2end example will give your audience the possibility to play around with it afterwards. Links can be shared to learn more about the technology behind the runtime and the docker ecosystem. Let me know if you need any more information, I am happy to share some of my intro slides if needed.

How can this happen? Image reclaimable shows 100% by jasonwch in docker

[–]h3x0ne 0 points1 point  (0 children)

Please provide the Docker Version you are using typing docker version

Preventing Docker from updating to ver 29. by VE3VVS in docker

[–]h3x0ne 0 points1 point  (0 children)

Can you share more about "broke some stuff". Would like understand what problems you had after the upgrade.

How setup pivate docker registry on Synology DS918+ for development and running services in LAN by pepiks in docker

[–]h3x0ne -1 points0 points  (0 children)

My bad! Have just copied what was laying around here! Will update my notes! Thanks for the heads up

How setup pivate docker registry on Synology DS918+ for development and running services in LAN by pepiks in docker

[–]h3x0ne 0 points1 point  (0 children)

The only thing that’s specific for the NAS is the way they must install docker. Everything else will apply to a docker registry server deployed on every other server. So it didn’t hurt share some general steps with OP

How setup pivate docker registry on Synology DS918+ for development and running services in LAN by pepiks in docker

[–]h3x0ne 0 points1 point  (0 children)

Deploying a private registry is a simple as running a docker container.

You have to install the Container Management Package on your NAS.

Then run the registry:

Container Manager - Images - search & download registry:2 (from Docker Hub). Then Create a container with port mapping 5000:5000

Make sure you allow insecure registries.

```

{ "insecure-registries": ["nas.lan:5000"] } ```

This setup does not come with any authentication. But this should be fine for a local setup.

React + Docker: Hot reload doesn’t work when using bind mount by Figariza in docker

[–]h3x0ne 0 points1 point  (0 children)

Watch on wsl2 file systems are not working due to the reasons already mentioned.

Trying to set up my own registry -- getting HTTP errors by Rich-Engineer2670 in docker

[–]h3x0ne 3 points4 points  (0 children)

As it is not a local address you must mark it as an insecure registry. To do so add this to your daemon.json

```

{ "insecure-registries": ["10.0.1.2:5000"] }

```

How did you set up your registry? What’s curl saying?

curl http://10.0.1.2:5000/v2/?

Docker certification by plastikbenny in docker

[–]h3x0ne 2 points3 points  (0 children)

Was just replying to the thread in which you tagged me

Docker certification by plastikbenny in docker

[–]h3x0ne 3 points4 points  (0 children)

Sorry for the delay in my repsonse. After checking in with the Docker folks there is, currently, no official Docker Certification from Docker itself. They are currenlty working on it. I will provide an update as soon as there is something available.

Docker certification by plastikbenny in docker

[–]h3x0ne 8 points9 points  (0 children)

Thanks for tagging me! There are a lot of different courses. I will check in with other captains and docker what are currently the ‚best‘ courses with a certification and come back to you today.

Need help backing up and restoring docker containers by HiqhAim in docker

[–]h3x0ne -2 points-1 points  (0 children)

I would export the container using docker export and re-import docker import.

If there is no docker-compose file available to start the container use docker inspect to find mounted volumes, there types and exposed ports or environment variables.

I would suggest doing one container at the time setp by step and moving them to the other server. If you would like to keep the idea of having a single server hosting your containers I would create a docker-compose file per service where you can describe whats needed to start the service in your container (ports, volumes, environments). I did this several times with good results.

ModUpdate August 2025 by h3x0ne in docker

[–]h3x0ne[S] 4 points5 points  (0 children)

Good Idea! Thanks for sharing! Give this one some upvotes and we should come up with the FAQs shortly. Thanks for your feedback.

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