Questions tagged [container]

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Connection refused when trying to access the new Podman v2 API from a remote client

My goal is to try out Podman's v2 HTTP REST-based API from a different machine than the one running it. Therefore, I created a virtualbox machine (based on Arch-Linux) and installed Podman 1.9.x on it....
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54 views

Install-WindowsFeature : Containers - Error: The parameter is incorrect. Error: 0x80070057

I am trying to enable Containers feature in Windows Server 2016 but I am getting the following error: Install-WindowsFeature : The request to add or remove features on the specified server failed. ...
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Where bonding/interface details are present in container running in host mode?

While running a container with host networking, I am able to see the different host interfaces using '''ip a''' but am not able to find corresponding bond files in '''/etc/sysconfig/network-scripts/...
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Cloud Foundry - Single command to start/stop all the apps in a specific space

I am looking for a single command in cloud foundry (CF) to stop or start all the applications (apps) in a specific space. Example - cf start app-name1 - this command starts the app-name1 app . ...
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55 views

Running supervisord in a non root container

I'm pretty convinced that your container should as few privileges as possible. So I'm trying to do so in the containers I'm working on. That said how do you handle a supervisord process in your ...
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1answer
101 views

Why is a normal user allowed to give away a file/folder by running `podman unshare chown`?

I think that usually a normal user is not allowed to give away a file or directory by running chown without sudo. A question was asked and answered at unix.stackexchange:Why can't a normal user chown ...
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8 views

Restore lxd image from tarball

I have created lxd images with ubuntu 16.04 and then exported them to tarballs. Now I need to restore an image from tarball, make some changes (so as I can connect to them via ssh) and then export ...
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36 views

Why my linux buffer is too small to dump 'ip a' output?

I have an environment with docker containers and when I try to execute: ip a inside one container, I get the output: Error: Buffer too small for object. Dump terminated Any idea why this is ...
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101 views

Will ip route affect ARP protocol?

I created a macvlan network interface mac0 on my host. My docker container also joined a macvlan network which has the same parent interface as mac0. After doing above steps, I still can not ping my ...
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7 views

Can we creata AMI with embedded Docker image?

Shall I create a AMI with docker image embedded in it, in other workds, If my EC2 has few Docker containers (Running), when I create a AMI out of Ec2. If I create a new Ec2 with new AMI image? Does ...
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when i am trying to browse in the firefox inside the ubuntu container internet is not working

i installed the ubuntu container on docker in the centos VM and i installed the vnc server in the ubuntu container where i am trying to browse the internet using firefox but there is no internet ...
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17 views

Linking a volume from one container to another container

I have a folder /var/log/test that I want to link as a volume from one container (container A) to another container (container b). Here what I tried from container A with the response: docker run -v /...
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195 views

How to access existing Oracle db from Docker container

I have a problem: there is a Spring Boot application container running on VirtualBox VM (particularly CentOS 7) and there is an Oracle test database server and on my host, Windows 10 Oracle client set ...
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26 views

Kubernetes: can ubuntu 18 containers run on slaves running on ubuntu 16?

It seems to be possible for docker, is it the same case for kubernetes? additional information on how this is implemented in technical terms would be useful as well. thank you.
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248 views

A Docker OS container - why?

If Docker is an application container (unlike a system container like LxC), and is to be used for running only one app/service, I wonder what good is a full, Docker OS container, say, for Ubuntu? Any ...
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63 views

Kube-apiserver going down periodically while adding user based authentication in kubernetes

I am facing some issues after adding some changes in kube-apisever.yaml file for Access based authentication. Steps that I have performed :- 1) I have installed v1.15.0 kubernetes on my ubuntu ...
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Is any try to upgrade docker engine version on aws ec2 (ubuntu-bionic-18.04-amd64-server)?

when i upgrade my docker engine version on ec2 ubuntu , I have referenced https://docs.docker.com/install/linux/docker-ce/ubuntu/#install-using-the-repository . but when I removed , and installed ...
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1answer
36 views

make a docker container from daemon

I'm using a microservices architecture. I already developed my daemon services (shell script). Now I want to run each of them in a docker container. I am new in docker, so I need some recommendations ...
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14 views

run docker registry in kubernente

I'm very new to kubernete.I want to run docker registry and sonarqube as containerize in kubernete.so I first I installed docker on my centos 7. 1-I have to use Minikube or Kubeadm to run kubernete ? ...
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30 views

Point kubernetes pod to secondary network interface during deployment

I have a master and node setup as VMs of virtualbox. Networking is done through secondary network interface enp0s8(and not default enp0s3). Master is successfully started using the command kubeadm ...
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218 views

How to change windows Docker container Date if user is manager\containeradministrator?

PS C:> whoami user manager\containeradministrator PS C:> net user administrator /active:yes The command completed successfully. PS C:> net user administrator The command completed successfully. PS ...
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How to make local testing environment for app in docker

I am trying to run an odoo application at work on our local network so that workers can start testing the modules we built. I am able to run and get the addons to run on the host computer but cannot ...
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1answer
1k views

traefik not redirecting to https

I'm trying to set up a home automation server, with docker, letsencrypt and traefik. Also using duckdns for ddns. I have some other containers like sickrage and so on on the same machine. I've opened ...
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1answer
138 views

Docker for mac --privileged not working

I have a docker container run via the below command: docker run --privileged=true -it --name mysql -p 3306:3306 centos:7 bash When I tried to start the mysql daemon in the container, it still ...
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1answer
461 views

How to write kubeadm 1.14.1 config file to set horizontal-pod-autoscaler-use-rest-clients to true

I'd like to create a kubeadm config file(kubeadm.yaml), which can be used for multiple nodes by kubeadm init --config kubeadm.yaml. The problem I am facing now is that, I want to set horizontal-pod-...
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1answer
134 views

How do delete data from a certain Docker container?

I would like to delete a Docker container and all associated images, volumes (not the external volumes) etc. I looked around web but all the things I found were about getting rid of everything ...
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23 views

Dockerize a VPS / Digital Ocean droplet?

Is it possible to create a docker image of my Ubuntu VPS including all the environment/setup, for example Nginx, Mysql together with their configurations, so that I can have an image which I can even ...
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3answers
216 views

Docker Ubuntu container installed software gets removed

First time trying Docker and had lots of questions. Installed Docker with Ubuntu container. Didn't know it that doesn't come with the basic essential tools like net-tools , vim , nano etc. Installed ...
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117 views

FFmpeg concat produces bad Video

I have installed ffmpeg on a microsoft/dotnet:2.2-aspnetcore-runtime docker container using 1.apt-get update 2.apt-get install ffmpeg. seems to be installed fine, but when I try and use it as such ...
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1answer
38 views

Virtual machines - workaround for bad operating systems? [closed]

From my understanding, we use VMs for isolation of environments, so that one environment's configurations does not break another environment. It's all nice, however: It's expensive in terms of ...
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1answer
2k views

FTP issue in docker containers

To start i'm pretty new on docker engine. I have a little cluster of two servers with docker engine. On node1 i have: one container with a openvpn a container with a ftp configured with passive mode ...
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883 views

How to implement iptables on lxc-container?

I am completely new to lxc-containers. I installed lxc-container (fedora 29 amd64) on my ubuntu 18.04 system. The linux container had no firewall command line tools. Therefore I installed iptables ...
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1k views

How to run an X11 application (xclock) on podman?

podman says Error: Can't open display: localhost:10.0 when I try to run xclock in a container with the command podman run -ti -e DISPLAY --rm -v ~/.Xauthority:/root/.Xauthority:Z localhost/...
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48 views

Matroska supported formats

So suppose I want to store a variety of time-synced data as a kind of "session", say. Like, say I have several video recorders recording video at the same time, as well as a few microphones, still-...
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1answer
49 views

Kubernetes destroying microservices with a DB

How can Kubernetes recover the data of my microservices when it has to be removed due a healthcheck failure? How will the new instance have the same information on the DB?
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64 views

How non entry point (random) process running inside Windows Container could write to docker default log output (stdout)?

So, I have one Windows Container with various processes, .NET and Win32 legacy applications. First scenario Entry Point calls myConfigurator.exe, who calls first.exe, who creates a pool of second....
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4answers
3k views

Firefox shortcut to open a particular account container

Firefox has multi-account containers that allow you to use the same website with several accounts, without having to use a different browser: Problem: I always open tabs with CTRL-t because clicking ...
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1answer
1k views

Healthy APFS volume trapped by broken container

How do I mount a healthy APFS volume belonging to a broken APFS container? The volume has FileVault enabled. All data sits in a external disk. Update The external USB disk was prepared with ...
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1answer
5k views

“volumes 'type' is a required property” when running docker-compose

I am working through understanding how docker-compose.yaml works. I am trying to define a volume inside the compose file and to mount it at a mount point locally. I try to run a basic .yaml to mount ...
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1answer
2k views

Running a desktop on docker containers

Is it possible to run x11 server inside docker containers running on headless server. So that I could use gui applications inside them. What I mean by that is I have a single container which is my ...
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1answer
319 views

Install RancherOS on VirtualBox: How to share public key to VM

For testing purpose, I want to install RancherOS on a VirtualBox VM. To install it, a cloud-config.yml file with public key is required to manage the system using SSH. What's the easiest/reliable ...
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1answer
408 views

Issue with local discovery of devices on dockerized Syncthing

I'm trying to set up a Syncthing instance for my local use and so I don't want to run a discovery server. For the local discovery of devices, Syncthing advertises itself over broadcast IP address of ...
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1answer
2k views

How to mount Certificates from CertBot to use inside Docker Container

The official certbot ( https://certbot.eff.org ) tool to issue and renew certificates from Let's Encrypt saves the currently valid certificate to ${prefix}/archive/${domain}/certN.pem, where N is an ...
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1answer
64 views

Why does the CPython interpreter ignore TERM when run in container?

If I start a Python process in a container with docker run --name python python python3 -c "import time; time.sleep(3600)" And try to terminate this on another console with docker stop python the ...
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1answer
208 views

How can I x11 forward from docker to the host inside a virtual machine then to the localhost

Here is the scenario program (inside container) -> virtual machine -> localhost I'm using a mac os as a host and boot up a virtual machine using virtual box. Inside virtual box, I boot up a ...
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2answers
227 views

Which Linux capability is needed to write to a device?

I set up Home Assistant in a Kubernetes container. It needs write access to the /dev/ttyACM0 device on the host computer (i.e. the computer that runs the container). It works if I make the container ...
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1answer
74 views

How can I change the configuration of existing docker?

I have a docker container, which was created using docker run command and basic command line options. Now the docker is running and I would like to add more options i.e. RAM, mount new partition and ...
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1answer
523 views

How to create a linux container which inherits the hosts root file system, possibly with zfs?

What Hopefully the question in the title makes sense. I am wanting to create a low overhead (therefore no virtual machine) copy of the host operating system, with it running in a linux container. I ...
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1answer
591 views

IPC versus UTS namespace

I am learning Kubernetes and it seems that they play crucial role in container implementations.They allow us isolation of global system resources between independent processes.Still I do not ...
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1answer
277 views

Running containers on top of QEMU

I have a testing setup I'm trying to migrate to using VMs rather than bare metal as much as possible. The existing setup is structured to run everything within containers (LXC, specifically), and it ...