Questions tagged [docker]
Docker - An open platform for distributed applications for developers and sysadmins.
995
questions with no upvoted or accepted answers
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jenkins:Broken AVD system path. Check your ANDROID_SDK_ROOT value
I have docker-image of jenkins.
Home directory of jenkins is: /var/jenkins_home wich mapped to /home/user
So, i install android-sdk wich mapped to:
/home/user/tools/android-sdk/
When i install ...
- 191
9
votes
0
answers
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What IP/ports should be opened for Docker Hub?
Given our client's restrictions, we cannot have our VMs completely open to the internet. However, we sometimes need to pull Docker images from Docker Hub.
We can white-list IP addresses and ranges, ...
- 201
8
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0
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Docker: "failed to get console mode for stdout: The handle is invalid."
When running docker-compose up in Windows PowerShell using Docker Desktop on WSL2, I get
Creating network "test_default" with the default driver
Building master
failed to get console mode ...
- 2,331
8
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0
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Ubuntu unattended upgrades stops Docker
This is my current 50-unattended-upgrades file:
Unattended-Upgrade::Automatic-Reboot "false";
Unattended-Upgrade::Allowed-Origins {
"${distro_id}:${distro_codename}";
"${distro_id}:${...
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7
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0
answers
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Docker is creatting another default network route overriding default one and disabling internet connection
I'm using docker, and when I started some container it starts the docker network interface. With it the daemon set-up 2 new routes, including a new default route, overriding my old one. And, of course,...
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6
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0
answers
779
views
How to hide Docker volumes from Dolphin file manager?
KDE Plasma user here.
Dolphin file manager is displaying all my Docker volumes in its devices sidebar section, and I'd like to prevent them to appear here without having to manually hide them.
Is ...
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6
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0
answers
569
views
When using shell inside Docker, previous command (Ctrl+P) does not refresh
I'm new to Docker, and I had a running container with Ubuntu 16.
I usually connect the container with the command:
docker exec -it 7e3 /usr/bin/zsh
Then, when I use the shell inside the Docker,
...
- 61
6
votes
1
answer
753
views
How to configure detach key-sequence like Docker's detachKeys using kubectl?
The default key sequence for detaching from a running container is Ctrl+p Ctrl+q in both Docker and Kubernetes.
For Docker (e.g. docker run), I can change this with either --detach-keys on the ...
- 1,055
6
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0
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2k
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How to move images of docker in aufs directory to overlay2?
I update my kernel of Debian from 3.x to 4.x.
Docker storage become overlay2.
ls /var/lib/docker/
containers image network overlay2 plugins swarm tmp trust volumes
old directory structure ...
- 61
6
votes
0
answers
449
views
How can I link an SMTP server to a Docker container under Plesk Onyx?
I'm running a Docker container on a Plesk Onyx managed server using the Docker extension. Everything is fine except email. How do I go about either linking my smtp server to the container or modifying ...
- 163
5
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3k
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GPG Error on APT-GET docker container (Ubuntu 22.04)
I am trying to just apt-get update on a ubuntu:22.04 docker container. On my local machine, when I spin up a new ubuntu:22.04 docker container and run apt-get update, no error occurs. However, on my ...
- 161
5
votes
2
answers
7k
views
Docker Desktop 3.1.0 for Windows 10 Installation Failed
I have Windows 10 Pro version 1903 (build 18362.836). Hyper-V is enabled. Docker Desktop 3.1.0 failed to install with the following error. Any help would be greatly appreciated.
Component ...
Lei
5
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0
answers
3k
views
Invalid length of startup packet docker compose postgresql
I am trying to install/setup pgadmin4 on a linux fedora 28 machine and when I try running this command
docker-compose -f docker-compose.yml -f docker-compose.dev.yml up
I get these errors:
...
5
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0
answers
638
views
using ksm_preload for Apache inside Docker
I am trying to use ksm_preload for Apache inside Docker. The problem is the library does not get mapped when running inside Docker. Outside it works and i am seeing shared/volatile pages. I think the ...
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5
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0
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1k
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Docker for Windows unresponsive after restarting VM
I've installed Docker for Windows on my Windows 10 machine, which uses Hyper-V. The default VM that gets installed is the MobyLinuxVM. To change some settings, I shut down and restarted the VM. But ...
- 703
5
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1
answer
215
views
Docker workflow with multiple packages and shared sources
Let's say I want to use Docker for an app, which consists of two parts. These parts are different, but they have some shared libraries.
So, I have two folders:
part1/
Dockerfile
src/
part2/
...
- 908
4
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0
answers
1k
views
Accessing Docker's volume using WinSCP
I have 2 Ubuntu 20.04.1 machines with Docker installed.
I would like to access the content of Docker volumes using WinSCP.
i.e. access the path /var/lib/docker/volumes/my_vol_name/_data
which is fully ...
- 41
4
votes
0
answers
4k
views
How to setup docker containers for multiple users?
I am very new to docker and have successfully created several containers for my own personal use. When I consider using docker to separate services on a server I administer, I do not understand how ...
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4
votes
1
answer
2k
views
ECS task can't pull container after defining execution role
I have existing task running on ECS cluster top of EC2 and now I would like to use secrets from Secret Manager. Secrets support need execution role which I have defined. Execution role has arn:aws:iam:...
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4
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0
answers
851
views
ARM Docker Image support on AWS CodeBuild
I've been trying to get a few different dockers images I've used for ARM cross-compiling setup in CodeBuild. In my project, if I choose one of the non-custom images it works, so I have narrowed it ...
4
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0
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./pipe/docker_engine: Access is denied. In the default daemon configuration on Windows, the docker client must be run elevated to connect
./pipe/docker_engine: Access is denied. In the default daemon configuration on Windows, the docker client must be run elevated to connect
I summarized my issue here with print screens etc.
https://...
4
votes
1
answer
3k
views
Sending Emails within a Docker Container
Hello I'm trying to run the following command in my container
mail -s "This is Subject" [email protected] < /path/to/file
How should my dockerfile look so the above command can be executed ?
I ...
- 141
4
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0
answers
431
views
Docker with /aufs on AWS EFS volume reports mount error "file too large"
I tried asking this at AWS forum and got no help...hoping someone in stackexchange has a solution.
Recently switched my AWS EC2 ubuntu 14.04 instance from using a EBS volume to the newish EFS (...
- 198
4
votes
1
answer
96
views
Why do docker images need to be small?
I'm trying to determine the material benefits of ensuring that your docker images are small. It seems that folks jump through some serious hoops to achieve this but the benefits aren't clear to me.
...
- 332
4
votes
3
answers
61
views
Locating a process in a linux vm (it's complicated)
I have a virtualbox vm to which I can connect through a browser using localhost:8080. The network of the vm is NAT with port forwarding of localhost:8080 to vm:8080.
However, logging into the console ...
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4
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0
answers
546
views
What exactly are the security implications of ufw DEFAULT_FORWARD_POLICY “ACCEPT”?
I found this question asked on Serverfault, but the answer just provided alternatives instead of actually detailing the implications. I had to set DEFAULT_FORWARD_POLICY to "ACCEPT" to be able to ...
- 233
4
votes
0
answers
3k
views
curl suddenly unable to get local issuer certificate
I've been using Docker 1.7.1 with base Ubuntu 14.04 image and all of a sudden this curl:
curl -L -o sbt.tgz https://dl.bintray.com/sbt/native-packages/sbt/0.13.9/sbt-0.13.9.tgz
is failing me with ...
4
votes
1
answer
90
views
Automatic container management
I manage around a bunch services which run on different machines. I have been playing around with having this services running inside containers and everything is working great. Next I was wondering ...
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4
votes
1
answer
6k
views
Docker unable to pull images
On running the docker command, I get following error:
docker run hello-world
Pulling repository docker.io/library/hello-world
docker: Network timed out while trying to connect to https://index....
- 157
4
votes
1
answer
556
views
Getting Mac Docker client to connect to virtualbox via vagrant
I am trying to expose dockers tcp ip to my host docker client. I have the following setup
Virtualbox 4.3.26 r98988
vagrant 1.7.2
Mac OSX Mavericks 10.9.5
Centos 6.6 vagrant box running (docker 1.5.0)
...
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3
votes
1
answer
370
views
Why would Docker Desktop unpause itself in Windows 11
Given:
Docker Desktop (latest version) Version 4.19.0 (106363)
Windows 11 Pro 22H2
When I pause Docker Desktop, after a few minutes it will unpause itself. Anyone know why this might happen?
- 483
3
votes
0
answers
1k
views
What is the difference between flatpak and OCI container systems?
Doesn't Flatpak and and OCI container systems like Docker, Podman and similar systems
encapsulate and distribute programs and it's dependencies independent from a Linux systems package management and
...
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3
votes
1
answer
1k
views
Does Alpine drop packages from old base images?
I am currently using alpine:3.13 as my base image. There, I had installed nodejs using: apk add nodejs=~14.15. However, the 3.13 branch contains a new nodejs (14.16) and 14.15 does not exist anymore. ...
- 161
3
votes
0
answers
929
views
How to change the default distro directory in WSL?
I have two drives on my machine , C, and D. On setting up a WSL2 image on one occasion and a WSL2-backed docker image on another, I found my C drive was full. I was able to move over one of the images ...
- 675
3
votes
0
answers
528
views
Is it safe to install / run Docker Desktop WSL2 and Docker within WSL2 on Windows 10?
I am running Windows 10 and I have already installed Docker Desktop with WSL2 integration. I have an NVIDIA GPU in my laptop and I want to run GPU-accelerated containers using NVIDIA's Container ...
- 151
3
votes
0
answers
2k
views
Docker Desktop WSL2 volume mapping not working
I'm running Docker Desktop with WSL2 backend.
I'm trying to run a docker-compose.yml which looks like the following:
version: '3.8'
services:
foo-service:
volumes:
- /home/foo:/var/lib/foo
...
- 141
3
votes
0
answers
566
views
How can I paginate Docker commands?
The output of some Docker commands (such as docker container ls) takes a lot of space of my terminal, causing a lot of line breaks, which makes the reading to be a frustrating task.
So I wondered if ...
- 131
3
votes
0
answers
98
views
Host (Win10) disk-size reported wrong after docker builds in VirtualBox on guest (Ubuntu)
My issue is reproducible in a rather specific setup, so let's first give some context:
Host OS: Windows 10
Virtual Box 6.0.14 (latest)
Guest OS: Ubuntu 19.10 x86_64 (kernel: 5.3.0-24-generic)
Gitlab-...
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3
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0
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768
views
Set up mitmproxy in transparent mode on a docker container
Is it possible to turn a docker container into a gateway for a transparent proxy like this? I heard that you need to use macvlan or ipvlan, but what is the equivalent setup for the example shown in ...
- 131
3
votes
1
answer
5k
views
Cannot connect via ssh to docker container
I have docker running on a server and I deployed a container, by running:
docker run -d -p docker_server_ip:3001:22 --name test14 -ti rhel_7_4
When running docker ps I can see the instance.
Also, I ...
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3
votes
0
answers
279
views
Newbie: developing in a remote docker @ aws ec2
I'm newbie and needing help. Currently playing with following setup:
remote machine
an AWS EC2 instance with Ubuntu 18.
Sec group: SSH - myIp port 22, http
install docker and docker-compose
...
3
votes
1
answer
5k
views
docker in docker without privileged mode
Last time I used docker in docker for runners, but it requires privileged mode
compose file:
version: '3.7'
services:
runner:
image: gitlab/gitlab-runner:latest
volumes:
- ./config:/...
- 131
3
votes
0
answers
322
views
How to deploy OpenProject on Heroku?
I want to deploy project management software OpenProject on Heroku cloud through docker-compose.yml file.
version: '3'
services:
openproject:
container_name: openproject
image: openproject/...
- 31
3
votes
0
answers
847
views
Finding .npm debug logs in Azure DevOps Pipeline
I have an existing build pipeline for a Vue web app that has worked flawlessly for over a year now up until today. I'm not a devops guy so I don't understand it 100% and got thrown into this, but here ...
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3
votes
1
answer
606
views
How does the Docker daemon know about the available hardware resources?
We are running Docker on a RedHat VM on a VMWare hypervisor. When we added more virtual cores (vCPUs) to the VM the RedHat sees the additional resources and can address it but not the containers ...
3
votes
0
answers
586
views
How to fix this PhpStorm, Docker and PhpUnit issue?
I have three docker containers:
prefix-php-fpm
prefix-mysql
prefix-mysql-test
I have configured Docker, remote PHP interpreter and PhpUnit in PhpStorm.
But when i run tests which requires DB ...
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3
votes
0
answers
2k
views
Docker: Connection PHP/Apache --> MySQL slow
I would like to ask for help on my Docker installation, because I can't fix it.
I have read a lot about slow Docker containers but all things I tried don't help.
When I browser the phpmyadmin UI it ...
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3
votes
0
answers
452
views
Problems installing docker-ce normal way after it was installed with snap
What I did:
Install docker-ce via snap
Remove it - errors
Remove snap
Remove via dpkg - worked finally
Install official way - dpkg gives an error, post-install script of docker would exit with an ...
- 461
3
votes
0
answers
2k
views
Docker container can't make DNS queries with FirewallD running
While FirewallD is running, all DNS queries fail and are blocked by the firewall. Running tcpdump -i docker0 while running ping google.com in a container shows me
21:27:02.683342 IP 172.17.0.2.35118 &...
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3
votes
0
answers
835
views
Java memory allocation error inside a Docker container when host machine is running Alpine Linux
I want to run Jenkins in a Container where my host machine is running Alpine Linux.
I have an Ansible playbook that starts the Jenkins container. However, the container exits as soon as it starts. I ...
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