Questions tagged [docker]

Docker is an open source project that automates the deployment of applications inside software containers.

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11 views

How to configure Wireguard to allow Internet access?

I have an Ubuntu 20.04.1 LTS to host a linuxserver/wireguard Docker container. Clients can successfully connect to the Wireguard server, but I'm unable browse Internet websites on the clients while ...
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Docker + nginx to bypass CORS

I'd like to use nginx locally to bypass CORS in browser. I'm having trouble with getting the request back out of nginx. How would I get it to call an address back in my own pc's environment/context ...
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Debug NodeJS API behind nginx reverse proxy in docker container using PHPStorm

So, at all I'm wondering if this is possible at all. The setup is: -nginx container which servers as reverse proxy for nodeJS container. Nginx accepts connection through both 80 and 9229 ports. -...
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Possible to VNC/RDP into Docker Windows Containers with GPU passthrough?

Use-case: Automated QA of video games Within the past 6 months it seems Microsoft and Docker have put a lot of effort to enable GPU passthrough for docker windows containers. GPU Acceleration. GPU ...
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15 views

docker run ffmpeg arguments with spaces

I have a script that uses docker linuxserver/ffmpeg to convert files, but it only works without spaces in the file name. Here is the command as logged after a set -x : docker run --rm -v /input:/input ...
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Docker host from container and vice versa via default bridge

Problem description Docker bridge is not working as per expectation Host not reachable from docker container and vice versa Steps to reproduce docker network ls NETWORK ID NAME ...
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1answer
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Hosting docker images on multiple registries but reference them the same way e.g. in a k8s deployment

Since I started with docker there is one question that follows me and I could not get a good answer so far. Let's assume I have a .yaml file specifying a k8s deployment. We are building our docker ...
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Intermittent 504 Error in Apache Web Server in Docker

I am hosting a mapping web site on Apache 2.4 web server sitting in a docker container on an AWS EC2 instance. The website utilises PHP. Ever since I moved the Postgres database off the EC2 instance ...
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UFW - making rules on host to only allow traffic from guest docker containers?

Situation: host running pgsql app in container on host want app to connect to database via TCP want to configure UFW so only containers on machine can connect to pgsql What's the best way to do this?...
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Powershell module import not persisting in docker container image

I installed powershell in the php debian docker image and now I am installing PowerCLI module in the docker image to access the vsphere info and display using laravel. The issue is with the PowerCLI ...
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Deploying minimal OS for running Powershell scheduled tasks?

People, I need your suggestion and guidance in deploying minimal Operating System to run multiple Powershell Scheduled tasks on my OnPremise Hypervisor VMware v6.7 Typically, I am installing these ...
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1answer
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MariaDB chokes on lock file after forced docker restart

I have a docker compose setup for running Nextcloud alongside a MariaDB container and a reverse proxy etc. Recently, I had to force a manual restart of the docker daemon because some containers were ...
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laravel docker-compose root in a wrong path

I'm working on a new project where I want a folder called api and one called client where api it's a Laravel app used as an API and the client a Nuxt.js application. I've managed to get the Laravel ...
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Dockerfor security for webrowsers [closed]

If I would run a app like a browser inside a dock, would that make my system less susceptible for malicious scripts and other application based attacks ?
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docker - Move files from one volume bind to another

I have some docker containers with volumes bound to directories on the host, all on the same hard drive. But from example when I run mv /input/test /output/test, where input and output are both ...
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1answer
27 views

GLPI appending :80 to CAS Callback URL

Problem: GLPI is appending :80 to the callback URL for CAS authentication using Keycloak. After logging in successfully on Keycloak, user gets redirected to the GLPI URL which containers :80 in the ...
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Networking not working on Docker / Centos 7.9

I'm running Docker on Centos 7.9.2009 and have a very strange issue. The containers do not have network access and cannot be accessed from the host. I've searched for potential solutions, a lot of ...
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How to run Gatsby Docker with Docker Compose

I am trying to setup Gatsby which will eventually be placed in a devcontainer in VS Code. Before doing that, I'm trying to get Gatsby to run in Docker with docker-compose locally. I found a ...
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1answer
23 views

Rancher on K8s (not helm) permission issues

I'm trying to teach myself K8s and am running into some issues that I've been unsuccessfully googleing / stack searching. I'm trying to setup Rancher without using helm. Here's my deployment manifest: ...
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1answer
14 views

How I can migrate my already built docker images with custom tags from dockerhub to amazon ECR?

Due to rate limiting of Dockerhub I migrated from dockerHub to AmazonECR. I managed to push new images to docker ECR but I want to migrate existing tags from dockerhub to Amazon ECR. Do you know how I ...
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Run docker containers on Windows Server 2019

Currently I have a Windows Server 2019 with Hyper-V. I have a cupule of VMs. One are running Ubuntu with Docker CE and a Nginx container. This is a nested virtualization. Is it a way to move the Nginx ...
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Docker fails to load container after power outage. How to remove corrupted containers?

Couple of my docker containers got messed up due power outage and as a results Docker daemon fails to start. I would like save healthy containers and only remove few corrupted ones. Is this possible ...
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After rebooting docker node, it will ask to join or init swarm

I have once server with docker as follows. docker-ce-19.03.13-3.el7.x86_64 docker-ce-cli-19.03.13-3.el7.x86_64 containerd.io-1.3.7-3.1.el7.x86_64 CentOS 7.8 minimal I run docker swarm init command ...
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23 views

What is the easiest way to setup/maintain a LAMP server using docker?

I have dozens of mini services around on VPS, RPis and other machines. I ran into troubles over the years now because updating one of those machines takes days (dependencies 😓). Docker to the rescue! ...
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How to run helm from a docker image

UPDATE This is slightly different than the posted comment asking if the linked question resolves my issue. The problem is that helm in the container is trying to connect to localhost which is not ...
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1answer
34 views

Postfix with Docker: Error connecting to SMTP - 454 4.7.1: Relay access denied

So I have the following Setup Ubuntu 16.04 Server with postfix installed, running BigBlueButton On that, I have a docker container with Greenlight which is basicly the frontend of BigBlueButton This ...
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2answers
50 views

Dockerfile & Kubernetes - COPY function doesn't seem to work (files not in Pod on deployment)

So I am running a local kubernetes cluster on my macOS using Docker for Desktop. I am setting up a Kubernetes cluster that I'd like to test locally, but I have some issues copying other my local ...
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1answer
33 views

Docker is bound to public interface but is not responding

Aside: Noticed some downvotes, happy to migrate this to another SO subforum if one's more appropriate. Pretty standard setup. Running pi-hole on a Raspbian Linux 10: root@raspberrypi:/etc/init.d# ...
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20 views

Ports exposed by docker container are shown as filtered - unable to connect

I am working on a fresh server installation of Ubuntu 20.04 I started a sample nginx by running docker run --rm -p 80:80 nginx Port 80 appears to be open on the machine, I cant curl the nginx default ...
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30 views

Jitsi and OnlyOffice on one Server (Ubuntu 18.04)?

I'm creating a intranet right now and facing some problems I cant find a solution for. I want to install OnlyOffice (a openSource Groupware) and Jitsi (openSource video conferencing) all trough Docker ...
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44 views

Docker container with GRE network incorrect checksum

I have a server with docker, whose containers connect to the internet via a GRE tunnel. My configuration looks like this (bridge network): { "Subnet": "10.0.0.128/25", &...
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Apache docker container RAM memory limit needed

If a single user is downloading a single file of 2 GB, my apache container (docker, in demo website) uses more than 1 GB RAM. In production website I tried with 2 apache containers * 14 GB RAM limit, ...
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1answer
29 views

mod_cache module seems not loaded in apache

I have a docker container with apache and I'm trying to set mod_cache configuration. It seems like mod_cache is not loaded at all (is not in list here apachectl -M). Is my logic correct? What can I do ...
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1k views

nginx proxy_pass return 502 Bad Gateway

I'm building nginx for reverse_proxy with Spring and Docker Here is my configuration. nginx.conf user proxy; worker_processes auto; error_log logs/error.log; error_log logs/error.log notice; ...
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1answer
104 views

Running MySQL 8 in Docker with Windows Host (WSL) the volumen for data directory is unusable

Im facing a problem when trying to run a MySQL 8.0 Docker in a Windows Host, using WSL2 integration. So, the enviroment: 1- Host: Windows 10 Professional. 2- Docker v19.03 The command to run the ...
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Override error_log from /etc/php-fpm.conf in /etc/php-fpm.d/www.conf

I need to configure the file for PHP's error_log in /etc/php-fpm.d/www.conf. Everything works perfectly fine when using: /etc/php-fpm.conf: ;error_log = /var/log/wrong-file.log /etc/php-fpm.d/www....
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1answer
110 views

How do you make an Ubuntu server with docker?

is there any way to make an Ubuntu system accessible to all devices connected to my network, maybe by using ssh or anything else. I'm trying to run it in docker
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20 views

Docker network bridge GRE tunnel

I am currently trying to setup a network docker bridge with a GRE tunnel. I have setup the GRE tunnel fine and the GRE tunnel is working, however, whenever I tried to use docker with it, it wouldn't ...
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12 views

Best way to bootstrap 5 etcd docker containers on a single VM

I need to bootstrap 5 etcd containers onto a single node (temporary measure, eventually they'll have their own nodes). I'm not sure of the best way to go about it, I've tried many ways, with no ...
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1answer
9 views

How can I prevent apache to log ELB Health Checks in Docker?

I have a dockerized web application deployed in ECS, and everything works just fine, logging in cloudwatch every request, including a HUGE number of health checks, which are configured to hit the ...
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31 views

Docker unable to resolve hosts within and outside containers

I am sshing into a University GPU cluster to run some experiments. I am required to use Docker. Unfortunately, I am faced with two, most likely related, problems. The first problem is that if my ...
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51 views

Docker daemon fails to start on RaspbarryPi

I have a docker problem which - when consulting the web - seems to happen quite often. Still, I didn't find among the million post I read and tried a solution. I can start "systemctl start docker....
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27 views

SSH fails: “PTY allocation request failed”, shell “not found”

I have GitLab CE running in Docker. After upgrading GitLab CE to version 13.5.3, its SSH stopped working. Everything else seems to be working fine. Executing ssh git@<myhost> results in PTY ...
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17 views

VMWare virtual machine as a docker host started to be really slow at responding

I've got a VPS in a form of VMWare Virtual Machine (with it's own IP address). I've installed docker and hosted traefik and an app it routes to. (VM OS - Ubuntu Server 20.04) Everything works properly ...
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1answer
39 views

Proper way to configuring docker network bridge on the host side

Edit: Note that I'm referring to a single host setup, some local server architecture and not some enterprise-grade backend :D docker network create with the bridge driver creates an actual bridge ...
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16 views

docker-compose and willfarrell/autoheal not restarting container with exit 2

docker-compose is not restarting my container even if it is listed with an exit code 2 is docker-compose ps. Name Command State Ports --------------...
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34 views

Frozen/dropped TCP connections in AWS

We have a number of AWS EC2 instances within the same AZ that transmit large amounts of network traffic to each other. In a small fraction of the connections, when a client on host A connects to a ...
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21 views

Packet loss / retransmission between docker containers

I'm running 20 containers in the same network and experiencing too many retransmissions between then (25%-35%) causing errors and slowing down applications. I could see those retransmission packages ...
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23 views

Rancher server UI unavailable (newie needing help)

First off, as the title says, in regards to Rancher I am a total newbie w/ very little understanding of the product. Second, if my issue has already resolved and posted on here elsewhere, please ...
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1answer
20 views

how to stop MySQL container from initializing at start

For testing purposes I want to build a MySQL container that has a dataset bootstrapped into it. I know that mounting is possible and that you can place sql scripts into the init directory to run the ...

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