Questions tagged [docker]
Docker is an open source project that automates the deployment of applications inside software containers.
4,108
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Can't resolve custom DNS name locally on a K3S Multi-Node Cluster
im an absolute DevOps novice and already had 3 full days of endless doc-reading, Youtube tutorials and trial and erroring to learn all those new concepts by myself and still cant make much sense of it....
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23
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Docker bridge host gateway doesn't work
My default bridge network isn't working properly.
So I spinned up 2 containers, one is for mongodb and one is for ubuntu.
These are the commands:
docker run -d ubuntu bash
docker run -d -p 27017:...
-1
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0
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22
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Synology onlyoffice docker error 502
On my synology NAS I have Nextcloud and I installed Onlyoffice docker. All was working but I change http to https for Nextcloud access and now Onlyoffice doesn't working (security).
So I change my ...
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18
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Best way to trigger host to restart a docker container from inside another docker container?
I have a docker container that manages all of the SSL certificates for my services with Letsencrypt. When the certificate for a certain service is renewed, a post-hook script copies the certificate ...
- 9
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19
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Trouble to understand how networking works on nomad
Can someone explain why I can't access my website running in a docker container thru nomad or what I'm doing wrong ? I'm beginner in system and networking.
I would like to make the container http ...
- 123
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22
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Why need to upgrade containerd.io from 1.2 to 1.4
I have upgraded containerd.io version from 1.2 to 1.4 in order to get a right result of 'ls -al' in rockylinux:8.7 container on Centos7 host.
In the following environment, I coun't access files inside ...
- 101
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11
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(111: Connection refused) while connecting to upstream nginx with docker
I am trying to dockerizing a angular universal app using nginx, and it's giving me really hard time.
I have looked everywhere and haven't found a solution.
Dockerfile
FROM node:14-alpine AS builder
...
2
votes
1
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62
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Ngnix Reverse Proxy Setup SSL For Localhost In Docker
Using below docker compose.yml I am creating 2 containers and a reverse proxy container..
version: '3'
services:
# SSGTM Tag Server Container
tagging_server_container:
image: gcr.io/cloud-...
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0
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19
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kubernetes: could not find PersistentVolume hostpath on windows
kubernetes: could not find PersistentVolume hostpath on windows 11.
kubectl describe pv/pvc-4a7bc0ff-9195-4f2f-bd70-9dfd1f8cd065
Name: pvc-4a7bc0ff-9195-4f2f-bd70-9dfd1f8cd065
Labels: ...
- 103
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2
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29
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Nginx strange upstream address after app restart
I have an application running in a container with an exposed port 8082. There is also an nginx configuration, part of which is shown below. In a normal situation, I see upstream: 127.0.0.1:8082 in the ...
- 113
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Need a tool that can save and run the docker images in non-internet machines [closed]
I am currently working on a project which needs to be deployed on customer infra (which is not cloud) and also it will not have internet.
Please provide some options where we can save all the ...
1
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18
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View logs from short lived containers in docker stack
Similar to this question, but with the intricacies of the docker stack added.
While debugging short lived containers on vanilla docker is "easy", you just do docker logs -f "...
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1
answer
33
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Can't pull a docker image on Cent OS server, but works fine on local Ubuntu OS
This command fails on a CentOS server but succeeds on an Ubuntu based laptop:
# server, CentOS based
$ docker pull jwilder/nginx-proxy:latest
Error response from daemon: manifest for jwilder/nginx-...
- 908
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38
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docker registry behind nginx reverse proxy with authentication and ssl
I'm trying to push images remotely to my private docker registry, which fails like this:
$ podman push sub.example.com:5000/dummyimg sub.example.com:5000/rem/dummyimg
Getting image source signatures
...
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1
answer
36
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dockerd does not start debian
Linux OS: debian11
Everything worked, but I think today after sudo apt upgrade I installed new version of docker.
Then docker daemon does not start:
$ sudo systemctl start docker
Job for docker....
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32
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Why docker continuously writing to disk [closed]
I have a home server to mostly store and share personal pictures. It runs under Centos 9 stream and I use docker.
The server is build with a SATA SSD for root, boot efi, ... partitions and 3 SATA HDD ...
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1
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34
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Two PHP sites under Docker + nginx cant communicate with each other
I am using Docker + NGINX to host two PHP sites. The sites are accessible from the outside but the problem arises when I try to access one site from another using cURL or file_get_contents.
The ...
- 11
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54
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Docker compose gitea remote ssh connection refused
I have setup Gitea on an Ubuntu server using this docker-compose config:
version: '3.9'
services:
db:
image: docker.io/bitnami/postgresql:15
volumes:
- 'db_data:/bitnami/postgresql'
...
0
votes
1
answer
17
views
Change the script path in an Apache proxy handler
I'm developing my application with 2 containers: apache and php-fpm.
Apache serves requests, and delegates PHP execution to the php-fpm container in its vhost:
<FilesMatch .php$>
...
- 101
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49
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Docker installed from snap fails to receive remote network traffic
I have an API hosted on a docker image which worked in the past, but which now is failing to work except on the host machine. I can successfully run queries using either localhost or the machine's ...
- 99
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10
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Optimzing Docker Builds with docker-compose.yml when using PostGres DB's, performance, etc
I just have a general about how best to build and manage DB servers when using Docker builds with docker-compose.yml. Historically, I've sometimes bound the Postgres DB's to a bound folder on the ...
- 141
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1
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158
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Installing docker/compose-bin plugin on Google's Container Optimized OS
I am trying install the docker/compose-bin plugin on a Google Cloud VM with Container Optimized OS (https://hub.docker.com/r/docker/compose-bin/tags).
Has anybody achieved this?
I understand docker is ...
google-cloud-platform
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1
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32
views
Cannot execute nested command on remote host over ssh tunnel
Im running the following command in my GitLab CI job:
ssh ${REMOTE_HOST} "docker restart $(docker ps --format '{{.Names}}' | grep '^backend')"
The problem is that it returns me the ...
- 203
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19
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Mixed content error nginx+docker container
I have an EC2 with Nginx setup & there are a few containers running inside. There's a Node JS gateway which is serving some of the requests in a webpage hosting in this Nginx server. Nginx is not ...
- 754
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86
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Why does MySQL 5.7 inside a docker container always crash?
I have a MySQL 5.7 docker container that was provisioned via a docker-compose file, the file looks like this:
version: '3'
# Run command: docker compose --env-file .env.local up
services:
# ...
- 131
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0
answers
13
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Apache Gateway to Dockerized FPM Container?
I have a dockerized app with a web fpm interface (monica:fpm-alpine), and a vps on the internet.
I want my vps to be an https gateway to this app.
I thought I could use a virtual host include file and ...
- 101
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0
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26
views
RabbitMQ connected dockerized Windows app stops consuming messages after some idle minutes
I have two Windows processes each in its own Docker container and they both publish and consume RabbitMQ messages. This is a proven app working on bare metal, but when dockerized it stops consuming ...
- 1
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21
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Moving databeses and applications to containers
I have production server let's call it SERVER1. Structure looks like this.
SERVER1 -- bare metal
Debian11
Apache2 with proxy_https
Database server mariadb
Databases:app1,app2,app3, app4
Directory &...
- 1
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8
views
How to read the central Puppet Configurations in the Dockerfile
Currently, I am working on a project we are trying to containerize our application. As our current VMs build scripts are pulling the environment and application-related parameters via puppet file ...
- 101
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votes
1
answer
46
views
Map subdomain to local IP through public IP
I want to map subdomain to local IPs on my machine to achieve a IP for each of my virtual machines.
I know I can setup a DNS on my own machine but that will only resolve the domain on my own machine.
...
- 3
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89
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Auto renew LetsEncrypt cert with nginx under Docker
I'm having troubles setting up a auto renew for LetsEncrypt certificates.
I run nginx under Docker container that serves Django application.
Here is my docker-compose file:
version: '3.8'
services:
...
- 1
0
votes
1
answer
59
views
Why does curl inside Docker to a subdomain in the same Host use private IP address?
Consider I have docker-subdomain.mydomain.com pointing to a website in a Docker container, and host-subdomain.mydomain.com pointing to a website in the Host itself. Both these websites are in the same ...
- 533
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19
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Iptable traversal with docker chains
Using this as a reference and this previous post, I attempted at creating a iptable packet processing flowchart when docker containers on the bridge network are considered. The flowchart is shown ...
- 1
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20
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nginx/swag and FULLY ignoring unknown subdomains
I have a domain, let's call it foo.dev.
If someone navigates to anything other than the subdomains I have site-confs for, I want it to look like there's nothing at all set up on the domain. If someone ...
- 101
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0
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79
views
Docker run failed: no space left on device "/dev/ptmx"
When I try to run any Docker container with an interactive terminal, I get the following error:
$ docker run -it --rm my-container
docker: Error response from daemon: failed to create shim task: OCI ...
- 101
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0
answers
37
views
Docker container can't find express even though it is installed and the Dockerfile compiles fine
When I try to run a docker container from an image I just built using "docker run" Node.js can't find express even though it is installed and the Dockerfile compiles fine.
Here is the output
...
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1
answer
90
views
using docker on linux with squid proxy. -- ubuntu 20.04
I have docker 20.10.21 installed from apt. The machine is not directly connected to the internet so we rely on our squid proxy.
I have set up a daemon.json file:
rful011@secphires01:~$ cat /etc/...
- 191
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votes
1
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31
views
Command that run fine... but give me an error when "piped" to grep, inside a docker RUN?
Sorry for the title, I really can't explain better. I'm learning shell programming.
I'm trying to detect if Composer has a script named "post-install-cmd". To do that, one can call composer ...
- 339
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votes
0
answers
25
views
NGINX waiting 60 seconds before processing request for NodeJS application
I have a NodeJS (ExpressJS) application containerized on Docker that is exposed through an NGINX reverse proxy also containerized on Docker. Sometimes, a request sent to NGINX takes 60 seconds before ...
- 101
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153
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Docker Nginx serves all static content (none index.php) as 403 Forbidden
I'am trying to convert my personal development setup from local php/ nginx setup to a docker setup. Almost everything is working great, the only issue I'am having right now is that all static content (...
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2
answers
1k
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How we Fix the APT repository errors Debian os
How to fix Fix the APT repository errors I'm using Debian GNU/Linux 9.13 (stretch), how can i fix this update error ?and import the Docker GPG key?
root@test:~# apt-get update
Ign:1 http://security....
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2
answers
127
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Can't pull some docker images: Status 410
I have a server that started showing this strange behavior. When I try to pull some very common docker images like docker pull ubuntu:latest I get the following message as a response:
Error: Status ...
- 133
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1
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24
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Can't upload bigger file using Wordpress Docker and Nginx with configured Certbot
I configured Wordpress on Docker Image:
version: '2'
services:
db:
image: 'mysql/mysql-server:8.0'
volumes:
- 'db_data:/var/lib/mysql'
restart: always
environment:
...
0
votes
1
answer
1k
views
How to fix "ERROR [internal] load metadata for docker.io" error while using Docker?
I am compiling sources of one cosmos-based blockchain projects on my MacOS. This project using Docker. I installed Docker and it seems running properly. But at the and of compiling I got this message ...
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answers
52
views
Persist Prometheus data from a Docker Container
I'm running Prometheus and Grafana from docker-compose and basically it works. But I don't get my prometheus data to persist on my host machine.
As soon as I switch my volume settings from
---
version:...
2
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0
answers
65
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Change UID in influxdb Docker container when running in Kubernetes
When mounting persistent storage for influxdb container the NFS storage ownership is changed to uid 1000 when container is run. Need to have a known RHEL host user (2000) have ownership of the file ...
- 21
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67
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How to forward WSL2 8080 to Windows host's 8080?
I have:
a Spring Boot application running on Windows on 8080 and
a service running in the Docker container within the WSL2 Ubuntu, and
I'm loking how to enable the Windows host's 8080 to this ...
- 101
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0
answers
50
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I'm dockerizing my website setup. What is the best approach to send mails by PHP-FPM in a container?
So i've seen a couple of questions about setting up notifications for PHP-based websites, so i'd like to ask you for the best approach. For that,
I have:
a WordPress website with custom PHP packages ...
- 173
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531
views
Nginx upstream block host not found
I'm running a nginx container where it maps to another backend container. When I tried adding upstream block in nginx.conf which is like
upstream backend_servers {
server backend:8000;
}
The ...
- 3
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votes
1
answer
101
views
Nexus docker repository - anonymous access to selected artefacts
Use case: allow to pull selected (e.g. tagged as *-public) Docker Images anonymously. Otherwise credentials are required.
Given: latest Nexus 3.52.0, it works with a docker login and LDAP credentials ...
