Advertisements I have next setup of docker-compose.yaml name: test-app-to-delete services: mongo: image: mongo restart: always networks: – mongo volumes: – db:/data/db:rw environment: MONGO_INITDB_ROOT_USERNAME: ‘user’ MONGO_INITDB_ROOT_PASSWORD: ‘password’ MONGO_INITDB_DATABASE: ‘db-name’ mongo-express: image: mongo-express restart: always networks: – mongo ports: – 8081:8081 environment: ME_CONFIG_MONGODB_ADMINUSERNAME: user ME_CONFIG_MONGODB_ADMINPASSWORD: password ME_CONFIG_MONGODB_URL: mongodb://user:password@mongo:27017/db-name networks: mongo: volumes: db: So issue become a problem… Read More How to connect to concrete database in docker-compose

Advertisements Is there any way that a container X in docker-compose application A can communicate with a container Y in docker-compose application B, both running simultaneously. I wish to deliver my application as a docker-compose.yml file. This is docker-compose application A. The application requires that certain databases exist. In production, clients must provide these database… Read More Network communication between containers in different Docker Compose applications running simultaneously

Advertisements I have a piece of software that I am considering making Open Source. Before this, I ran most of the code and it’s dependencies natively on the box that I was using (e.g. Gunicorn, RabbitMQ, Redis etc.). This was all installed with a simply install script. I want to move to using Docker to… Read More Open Source Dockerfile for Distribution

Advertisements Looking at examples for docker compose files I found some named "compose.y(a)ml" instead of "docker compose.yml" or "docker-compose.yml" that I’ve seen. Does it matter if it’s "compose." or "docker composer"? Awesome Compose repo I’ve tried to search for an answer online and tried reading on the docker documentation here but didn’t figure it out.… Read More Does it matter if the docker compose file is named docker-compose.yml or compose.yml?

Advertisements version: "3.7" services: api_service: build: . restart: always ports: – 8080:8080 depends_on: – postgres_db links: – postgres_db:database postgres_db: image: "postgres:11.4" restart: always ports: – 5435:5432 environment: POSTGRES_DB: testDb POSTGRES_PASSWORD: admin this is my yaml and I got properties spring.datasource.platform=postgres spring.datasource.url=jdbc:postgresql://database:5432/testDb spring.datasource.username=postgres spring.datasource.password=admin if my postgres is rds then do I need to compose them… Read More How dockerize Spring Boot app if Postgres db is going to be AWS RDS?

Advertisements docker newbie here. Trying to understand the meaning of the following: services: mongo1: hostname: mongo1 container_name: mongo1 image: mongo:5.0.6 expose: – 27017 ports: – 27011:27017 restart: always Note the ports: 27011:27017 when the docker is up and running I can access the mongo via port 27011, so what is the 27017? and why do… Read More docker compose understanding the ports mapping

Advertisements I have a docker-compose project that I am trying to run on my server, which does not have IPv6 enabled. Whenever I try to run the container, I get the following error message: nginx: [emerg] socket() [::]:80 failed (97: Address family not supported by protocol) I figured that is because IPv6 is not enabled… Read More Disable IPv6 in docker compose

Advertisements I’m using docker compose to up a service. It crashes (I guess since it is supposed to run a server). I tried docker compose -f [my_docker_compose_file] logs but it doesn’t say anything and shouldn’t but I can’t work around an other way to get the logs. Question is, how do I retrieve the logs… Read More How can I get the logs of a crashed service

Advertisements The Compose file ‘.\docker-compose.yml’ is invalid because: services.mysql.networks contains an invalid type, it should be an array, or an object this is the code: mysql: image: mysql:5.7.29 container_name: mysql restart: unless-stopped tty: true ports: – "3306:3306" environment: MYSQL_DATABASE: laravel MYSQL_USER: homestead MYSQL_PASSWORD: secret MYSQL_ROOT_PASSWORD: secret SERVICE_TAGS: dev SERVICE_NAME: mysql networks: -backend >Solution : You… Read More Running docker-compose up -d -build , I got the following error:

Advertisements I would like to set an env to the CPU serial of a Raspberry Pi. With CLI it’s easy: docker run -e DEVICE_ID=$( cat /proc/cpuinfo | grep Serial | cut -d ":" -f2 | xargs ) … How can I accomplish the same thing in a docker-compose.yaml file? >Solution : A docker-compose.yaml file doesn’t… Read More How to set docker-compose.yaml environment variable from a shell output?