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.
241
questions
1
vote
1
answer
568
views
Error while trying to run docker redis image on Alpine Linux 3.7.0
Specifications
Microsoft Windows [Version 10.0.14393]
VirtualBox 5.2.8
Alpine Linux Extended 3.7.0
Docker Info
Containers: 0
Running: 0
Paused: 0
Stopped: 0
Images: 1
Server Version: 17.10.0-ce
...
- 111
2
votes
2
answers
3k
views
docker-compose local variable declare and use
In the programming language we can define and declare a variable and use it later in the program, can we do same in docker-compose file?
For example in Java:
int x = 100;
System.out.println("...
- 23
7
votes
2
answers
675
views
How to move disk image in the command line?
As answered in this questions: Does Docker on MacOS support tmpfs? In order to run in memory docker, I need to move docker volumes to ramdisk. In macOS I can do it through docker preferences. However, ...
- 223
4
votes
1
answer
7k
views
How can I push multiple containers, created with docker-compose, to a registry
I am using Jenkins pipeline and run a shell command to bring up my linked containers for testing. Once the testing is complete, I want to push the containers to a registry (I would prefer AWS ERC, but ...
- 141
5
votes
1
answer
852
views
docker-compose fails to recognize when images are rebuilt sometimes ... often same code is OK
I have a devops container inside of which I execute docker build and docker-compose up commands which run OK then (on same server or different server with same code) sometimes incorrectly fail to ...
- 479
0
votes
1
answer
206
views
docker micro-service cannot connect to bitcoin docker
I have a micro-service watchblockchain that makes requests on bitcoin blockchain. When I use both services, everything works just fine.
Then I want to put those services in docker containers.
...
- 113
6
votes
2
answers
6k
views
Why should you do port mapping for docker containers?
I have been using docker for a few months and I am just a developer not a DevOps or a networking person. However, I came across a docker-compose which maps an external port to an internal port. ...
- 163
3
votes
1
answer
8k
views
Docker swarm replica stays 0/1 and service stays in status new
I have a problem with my docker swarm. I created a new service with the following command:
docker-compose config | docker stack deploy -c - serviceNameX --with-registry-auth
The docker-compose file ...
- 176
4
votes
2
answers
3k
views
Docker MongoDB image - How to specify credentials other than in the compose file?
I'm using this docker image https://hub.docker.com/_/mongo/. That image provides a way of initializing a mongodb root database user with env variables which I can specify in the compose file as ...
- 143
6
votes
1
answer
441
views
Build Design - Docker vs Fedora's Mock
This post is migrated from a reddit post. Parts in bold are to adopt it to SE's format.
I'm talking with companies to help streamline/combine their build process. They must do it together and their ...
- 466
1
vote
2
answers
3k
views
How to pass the version to docker-compose?
When I would like to update an app at the moment, docker-compose down, the version in the docker-compose.yaml is changed, subsequently the app is started and the latest version is running.
Now I ...
- 12.9k
1
vote
1
answer
1k
views
How to integrate docker-compose or docker run command arguments into SCM and Jenkins build?
When I do docker run I have to give extensive argument options for my container setup. To mitigate this and ensure all developers are using the same arguments I switched to docker-compose.
Now ...
- 466
0
votes
1
answer
872
views
Using Jenkins to control docker image build flow
I'm trying to figure out the proper way to get build environments into a CI pipeline.
What I want to achieve is:
someone pushes to the docker source repo (not registry, a repo with the docker folder)...
- 466
2
votes
0
answers
753
views
How to deploy with AWS CodePipeline a multicontainer docker environment without dockerfile
I'm using simple docker-compose container images. Here's my docker-compose.yml
version: '2'
services:
db:
image: postgres:10.2
ports:
- "5432:5432"
...
2
votes
1
answer
2k
views
Docker Compose V3 app container can't access couchdb container
I am trying to connect to couchdb through the container but my app is not seeing it.
However if I use the external address 123.456.789.123:12345 (server_ip:external_port)
it works but I need a ...
- 123
16
votes
2
answers
13k
views
How to deal with docker compose's naming convention of named volumes?
When defining named volumes in docker-compose.yml, their names are prepended with their parent folder name. This causes a problem when scripts outside of docker compose have to interact with them. The ...
- 1,187
6
votes
1
answer
7k
views
How to populate docker volumes in a build step to be used by a different container
I currently have a Docker compose based web app that uses Nginx as a reverse proxy that forwards traffic to a Flask and Grafana docker instance. The task at hand is to integrate a SSG (static site ...
- 1,187
6
votes
1
answer
4k
views
Nginx reverse proxy setup issues with Docker containers
I have two running docker containers:
A Docker container running Nginx that serves Angular app resource files that were copied into the Docker image on docker build
A Docker container that is an api ...
- 381
2
votes
1
answer
2k
views
Traefik configuration issue with local proxy
Edit: I have updated my configuration to reflect Henrik Hoegh's tutorial. I am still running into issues.
I am setting up a local development environment with lots of docker containers running ...
- 141
3
votes
2
answers
85
views
How can secrets be distributed in a docker swarm?
Currently I use env and sql files so that docker compose can load secrets from there and build sql database docker instances with specific user/password. The question is, how can this be ported to ...
- 1,187
10
votes
3
answers
3k
views
Why is environment variable mangled in docker compose environment file
Context: docker-compose to start several containers, including Gunicorn that calls a Flask app. I'm using an environment file web/env.gunicorn to store my Gunicorn startup configuration. This file ...
- 1,187
16
votes
3
answers
12k
views
Why are unnamed volumes created when `docker-compose up` is run and do these double after issuing `docker-compose down && docker-compose up`?
When starting a docker compose application, it creates named volume the first time around and then additional volumes each time it is started. Is this the normal behavior in that it creates ...
- 1,187
6
votes
2
answers
2k
views
How to Shutdown Docker Stack on Container Failure
Say I have several docker services using swarm defined as such:
version : '3'
services:
server:
image : my_server:latest
deploy:
replicas: 5
...
- 101
5
votes
1
answer
362
views
How to run "docker/compose" container on RPi3?
I have pull the image https://hub.docker.com/r/docker/compose/
docker pull docker/compose
But how can I run it to build my images on Raspberry Pi/rpi3?
1
vote
1
answer
11k
views
Docker compose host variable in extra_hosts not working
I have a docker compose file with .env file, for example the .env file has this HOSTNAME=a1.test.com, and a docker-compose file has this:
...
extra_hosts:
- "${HOSTNAME}:1.1.1.1"
- "test.com:1.1....
- 412
4
votes
2
answers
7k
views
How to "docker-compose build" a service from code located in local git repository?
I have a git repository placed in local file system at /home/nou/code/lib.git
Also I have /home/nou/docker-compose.yaml that is used to deploy a service based on the code from the repo:
version: '2'
...
- 143
7
votes
3
answers
7k
views
Unable to mount docker folder into host using docker-compose
Here I created docker container which use the mariadb image and created three volumes as below.
docker-compose.yml
version: '2.0'
services:
mariadb:
image: mariadb:latest
restart: always
...
- 255
2
votes
2
answers
234
views
Docker-compose + Kubernetes: backports.ssl_match_hostname.CertificateError
I have a complete docker stack (source) which uses docker-compose.
It works fine by its own, but now I'm trying to deploy it in Kubernetes' Minikube and when after eval $(minikube docker-env) I try ...
- 415
5
votes
1
answer
224
views
Docker swarm stop spin up containers at 250
TLDR: Docker won't spin up more then 250 containers.
I'm deploying a cluster of 3 docker services to a swarm with 2 nodes. 2 of the services need to contain 1 container (have a replicas: 1 in the ...
- 201
6
votes
1
answer
288
views
Six repositories as a single deployment Docker+CircleCI
I need some help and be pointed in the correct direction.
I have 6 git repositories that together combine a bigger application (3 Node.js API, 2 React web apps and one repository for Ansible and ...
- 163
1
vote
1
answer
471
views
Autorun ElasticSearch with Docker Compose
All of the tutorials online say to manually start elasticsearch as a daemon with a docker command from the command line. Is there a way to auto run it like redis, postgres and other services do from ...
- 111
2
votes
1
answer
2k
views
Error with docker-compose - image not supported?
What's wrong with the following spec? (Image parameter is here to tag resulting image).
version: '3'
services:
foo:
build:
image: foo/bar
dockerfile: Dockerfile
...
- 6,762
26
votes
2
answers
22k
views
Connect Docker container to both host and internal bridge network
I am trying to run a Docker container as a router between a private (--internal) Docker network and the predefined host network. This means the container needs to have two network interfaces: One "...
- 521
3
votes
2
answers
3k
views
Dynamic YAMLs for Docker Compose
Currently I find myself managing a set of embarassingly similar YAMLs for environment profiles. I see there a scaling trouble if there will be lots of dynamic environments (i.e. fluid acceptance test ...
- 6,762
35
votes
4
answers
78k
views
docker-compose invalid type, it should be a string
I have the following environment variable configured in a docker-compose.yml file:
version: '3'
services:
server:
ports:
- 13045:3000
environment:
- NODE_CONFIG: '{"DATABASE_URL":"...
- 451
5
votes
1
answer
3k
views
Understanding how Docker volumes work with compose
In the Docker Compose example for WordPress, the Ycode listing [1] says:
volumes:
- db_data:/var/lib/mysql
What is exact meaning here? To compare, while using the Docker client, you can map ...
- 6,762
12
votes
2
answers
3k
views
Is it possible to build docker images using docker-compose concurrently?
When one runs docker-compose up --build then the docker images are created sequential. Is it possible to build these images concurrently using docker-compose?
There are multiple issues including this,...
- 12.9k
5
votes
1
answer
3k
views
What are best practices to override complete sections using docker-compose?
The docker-compose.override contains:
volumes:
- ./a:/path/to/a
The docker-compose:
volumes:
- a:/path/to/a
When docker-compose up is run the override overwrite the ./a overwrites the a.
When ...
- 12.9k
3
votes
1
answer
1k
views
How to create a database backup using docker-compose
According to this documentation one could create a database backup
docker-compose.admin.yml
version: '3'
services:
dbadmin:
build: db_data/
links:
- db
running
docker-compose -f ...
- 12.9k
14
votes
4
answers
7k
views
Is running docker-compose not supported in BitBucket?
Aim
The aim is to run docker-compose in BitBucket pipelines
Attempt
bitbucket-pipelines.yml
image: docker/compose:1.12.0
pipelines:
default:
- step:
script:
- docker-...
- 12.9k
43
votes
3
answers
45k
views
Why is one not allowed to use a Boolean in a docker-compose.yml?
Defining a boolean in a docker-compose.yml file:
environment:
SOME_VAR: true
and running docker up results in:
contains true, which is an invalid type, it should be a string, number, or a null
...
- 12.9k