Questions tagged [docker-compose]

Docker-compose is a tool that is able to run multiple container by issuing `docker-compose up`. One of the features is that DNS mappings could be made between the containers so that they can find each other.

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9 views

Can I deploy Couchbase docker dependency in GKE?

I have a simple spring boot application which is wrapped into a Docker image along with its dependencies such as "Couchbase". I have pushed the docker image successfully to google cloud ...
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Substitute env_file values with .env values on docker compose

Is it possible to substitute (without the use of external tools like envsubst) values in an environment file used in docker-compose (using env_file) with values on a .env file in the folder? Say I ...
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52 views

Isolate service networks with Docker Compose

I have two containerised services, A and B, with which I wish to isolate network communications with docker compose. There is also a shared service C which is not isolated from A or B and is free to ...
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1answer
21 views

is a secrets-provider-container a good idea?

I am looking for a way to provide secrets to a container running on Google Cloud Run responding to the following criteria: secure centralized & pulled based free simple working with a team, with ...
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2answers
33 views

Use a volume or copy my artefacts into docker image

I want to dockerize my php application and deploy it in production. Here is my application structure : api | +-- src +-- config +-- vendor +-- tests +-- public I need to embed api/* in my container, ...
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22 views

Can't access specific docker container using a mapped port through my host [macos]

I just can't access the project's resource through the mapped port, the weirdest thing is that only this container, the others and with other projects it works fine. It was working pretty well and ...
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1answer
45 views

Deploy Docker Compose from different repositories

I have 3 separate repositories, which contains API, web app, and Admin projects. All 3 runs on a Digital Ocean docker machine, and I deploy the 3 using docker-compose (I want to keep things simple). ...
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Must the Docker desktop client be running in order for the daemon to be up? (macOS)

I recently upgraded docker to 19.03.13 and my docker desktop client version is 2.5.0.1 (49550). Ever since this upgrade, if the docker desktop client is not running, zsh prompts the following when I ...
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33 views

How to serve a custom index.html using the stock nginx docker image?

How do I serve static content from the default nginx docker image? Given: root@mordor:~# root@mordor:~# docker image ls nginx REPOSITORY TAG IMAGE ID CREATED ...
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1answer
22 views

How to navigate to an index.html with nginx?

This builds and runs without apparent error: root@mordor:/home/nicholas/docker/nginx# root@mordor:/home/nicholas/docker/nginx# docker exec -ti some-nginx bash root@2c912aa5ce5c:/# root@2c912aa5ce5c:/...
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How to copy HTML files to include into nginx?

How do I copy an index.html file into nginx? root@mordor:/home/nicholas/docker/nginx# root@mordor:/home/nicholas/docker/nginx# ll total 12 drwxrwxr-x 2 nicholas nicholas 4096 Nov 13 16:18 ./ drwxrwxr-...
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34 views

How to access a fully qualified domain name through “localhost”?

About nine minutes into a tutorial on ERPNext I followed directions as: root@mordor:/home/nicholas/git/frappe_docker# root@mordor:/home/nicholas/git/frappe_docker# cat .env LETSENCRYPT_EMAIL=nicholas@...
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1answer
30 views

Docker compose scale, what is it good for?

I have a docker-compose with 4 containers deployed in production. I wanted to use docker scale for the nodejs part. (with nginx LB) If the docker-compose scale is done on the host machine, how does it ...
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30 views

Docker container with Ubuntu 16.04, Nginx, Nodejs via docker-compose.yml

I am new to Docker Containers. But I am very confused with a few things. My goal is to create docker container with ubuntu 16.04,Nginx and nodejs. From googling and tururials I only found docker-...
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9 views

How to add to a list for a Docker yaml extension

Is there a way with docker-compose to allow extension fields to add fields to a list? I've tried a whole bunch of combinations, but haven't seen if there's a way to do this What I want to do is have a ...
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45 views

Good practice for frontend+backend in docker-compose

I wanted to ask you guys, what is it good practice if I have docker-compose and inside: nginx ( as a web proxy ) 2 little backend services 1 frontend 1 keycloak for now its for low traffic needs, so 1 ...
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1answer
27 views

hello world with flask and redis using docker networking

The sample from Docker, a "hello world" with redis and flask, seems to build fine, but, as an exercise can it be broken into two components? The redis service uses a public Redis image ...
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1answer
356 views

docker-compose up: Error starting userland proxy: listen tcp 0.0.0.0:443: bind: address already in use

specific error: ERROR: for traefik Cannot start service traefik: driver failed programming external connectivity on endpoint frappe_docker_traefik_1 (...
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1answer
40 views

how to push an image to docker hub?

How do I push this image to docker hub? root $ root $ docker images helloworld_web REPOSITORY TAG IMAGE ID CREATED SIZE helloworld_web latest ...
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2answers
93 views

Dockerized node.js and bind mount permission problem

I have an interesting problem with node, docker-compose and local development using bind mounts. I have a bind mount volume, called www-public, owned by my host node user (I created a node user and ...
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1answer
61 views

How to Connect Docker Containers?

In "What is a container?" the docker docs show the following nifty image: For my scenario I have only App A and App B; let's designate them Alice and Bob. How do Alice and Bob communicate, ...
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22 views

How to organize frontend infrastructure with dockerized MERN

Can you please tell me, how do I organize my frontend infrastructure for MERN stack dockerized app? For example, I will need a container for MongoDB, Node separately, organized with docker-compose, ...
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325 views

docker-compose to populate MariaDB/MySQL Database from mysqldump from GH repo referencing docker-entrypoint-initdb.d path on build

I'm dabbling with creating an application that can be built from a single docker-compose.yml file "on the fly" in any Docker / docker-compose enabled machine (most likely for QA, UAT or ...
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1answer
252 views

Docker-compose containers can't connect to each other

According to the Docker Compose Docs: Networking: By default Compose sets up a single network for your app. Each container for a service joins the default network and is both reachable by other ...
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1answer
31 views

How do I convert “\n” to linebreaks in my docker logs?

I am using docker-compose up to start a web server in linux but am finding that the stdout is printing "\n" characters instead of creating new lines. This makes stack traces difficult to ...
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103 views

What is the purpose of running PHP-FPM in its own container instead in the same container as apache2/nginx?

I'm fairly new to Docker so excuse any obvious ignorance or misunderstandings. That said, I've been coding and configuring web applications for a long time now. I have recently been dabbling with some ...
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1answer
76 views

docker run vs docker-compose - different results?

I have just started exploring Docker and am having trouble with docker commit/-compose. I have copied a file into /root/.guacamole/lib (in the container) and then created an image using docker commit. ...
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39 views

Include curl commands in a PostgreSQL Docker environment

Using COPY table FROM PROGRAM 'curl "www.example.com/data.csv"'; I am able to copy a CSV directly from the web into a psql table. However, when I am running the same command from inside a ...
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1answer
52 views

Is it possible to install bitbucket container on Centos?

I'm trying to run the below composefile on centos7: version: "3.3" services: bitbucket: image: atlassian/bitbucket:latest ports: - 7990:7990 - 7999:7999 networks: ...
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1answer
1k views

docker-compose healthcheck for rabbitMQ

I'm trying to run rabbitMQ using docker-compose, but the service is always starting or unhealthy. rabbit is running fine, so I suspect there is something wrong with my health check. Running the ...
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1answer
87 views

How to prune all but two most recent docker images?

I'm building images on a small server and spinning them up with docker-compose. When it's disk gets full I run docker prune -a so all the stopped containers, dangling image are cleaned out. But I'd ...
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1answer
60 views

GitLab keeps loading and finally fails when deploying a dockerized node.js app

GitLab Job Log [0KRunning with gitlab-runner 13.2.0-rc2 (45f2b4ec) [0;m[0K on docker-auto-scale fa6cab46 [0;msection_start:1595233272:prepare_executor [0K[0K[36;1mPreparing the "docker+machine&...
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2answers
177 views

Jenkins - docker login doesn't seem to persist: docker pull won't work but docker-compose can pull without problems

I am setting up a new Jenkins as our old one is based on a deprecated base image. Dockerfile is: FROM jenkins/jenkins:lts-centos7 USER root RUN yum -y install docker \ && yum clean all ...
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1answer
89 views

How not expose my backend

I'm studying Docker and how to properly publish my containers coding a very simple web application. It has only two containers, backend and frontend. I've published the source code here: https://...
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3answers
122 views

Trick a docker containers DNS to resolve a different url

I am not sure I know the terminology to describe this correctly, my apologies. But for a contrived example. Say I have a docker container that runs code that accesses "google.com". But I want all ...
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41 views

Are there turn-key development webapp containers for evaluation?

In short: I want a ready-made webapp framework with a web server and a database in a container, such that I can edit files on my local drive and view the results through a browser pointed at the ...
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1answer
56 views

Docker calls to detect app crashing inside it

Is there a way to know if an app has crashed inside docker using maybe bash script or API call from host container, am implementing CI/CD using Jenkins and will be deploying the built app via ssh to ...
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1answer
50 views

Jenkins Docker Behind Reverse Proxy Adds “:80” to the URL

The Jenkins container redirects to URL:80, which is causing an error. When I remove the :80, everything is working as it should. I have tried the proxy with a simple web app and there were no issues. ...
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0answers
19 views

How can I allow admins to run Django Admin CLI commands against a Django application deployed live as part of a Docker Swarm cluster?

Specifically, I want them to run the following: https://django-q.readthedocs.io/en/latest/monitor.html I am looking to write a minimal wrapper-script which would simply allow them to run a single ...
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0answers
25 views

traefik two hosts in the same config

I'm trying to run Nexus in swarm with traefik, nexus has a admin interface that runs on port 8081 and also has a nexus docker registry repository running on port 9615. My goal is access registry ...
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1answer
90 views

Failure to build with docker-compose: Invalid signal: SIGQUIT

PS D:\>docker-compose up Building app Step 1/7 : FROM php:7.4-fpm-alpine —> 5ae58b49885c Step 2/7 : RUN apk add --no-cache autoconf curl dpkg-dev dpkg freetype-dev file g++ gcc giticu-dev jpeg-...
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2answers
751 views

Stress testing for docker container

I want my container to die under high pressure to check monitoring and alerting as well as compose autorestarts. What is best way to simulate heavy load within docker container. I've tried so far ...
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1answer
32 views

Using DevOps pipelines to create distribution bundles of applications

We want to create bundles of our applications in order to distribute to clients etc. An application can have more than one component. Ex: an application can have a spring server and a scheduler so in ...
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2answers
592 views

Healthcheck: CMD vs CMD-SHELL

It's not clear to me what are the differences between CMD and CMD-SHELL in Docker Compose healthcheck. What are the benefits of using CMD-SHELL compared to CMD? What are the use cases for CMD and CMD-...
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1answer
42 views

Grant access permission to file when mounting from host

Below is except of my docker-compose.yml file I am trying to mount from host file inside the container, which works i.e. able to mount but then I need to give it permission (my clumsy chown command, ...
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2answers
444 views

Restart docker container from another container

I'm in a planning phase for a little tool for myself. I have to say that I have close to 0 experience with docker. My setup 1 x Nodejs App in a Container (lets call it App) n x Instances/Containers ...
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2answers
288 views

docker-compose multiple services in a loop

Trying to optimize definition of multiple services with docker-compose.yml Here is the original, "dumb" variant of the docker-compose.yml: version: '3' services: s1: build: . ports: - "...
2
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1answer
245 views

How to automatically update Swarm services when the Docker daemon restarts

I'm using Docker Swarm, and I have condition: always in the restart_policy of my compose file, so my services are started automatically when the system reboots or the Docker daemon is restarted. What ...
2
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1answer
63 views

Multiple apps (microservices) and one proxy (nginx) docker-compose configuration/architecture

Having the following architecture: Microservice 1 + DB (microservice1/docker-compose.yml) Microservice 2 + DB (microservice2/docker-compose.yml) Proxy (proxy/docker-compose.yml) Which of the ...
2
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1answer
54 views

Workflow with docker in the development environment

I have a couple of questions related to the usage of Docker in a development environment. I am going to propose three different scenarios of how I think Docker could be used in a development ...