I'm using MaxOs and after install Docker i tried to install LaraDock,running this command which that was into LaraDoc documentation:
laradock % docker-compose up -d nginx mariadb phpmyadmin redis workspace
return this error:
laradock_mariadb_1 is up-to-date
laradock_docker-in-docker_1 is up-to-date
laradock_redis_1 is up-to-date
Starting laradock_mysql_1 ...
Starting laradock_mysql_1 ... error
WARNING: Host is already in use by another container
ERROR: for laradock_mysql_1 Cannot start service mysql: driver failed programming external
connectivity on endpoint laradock_mysql_1 (a75f179cd36ac95540f346d1c75ff105904cc8717690152ac90b92383c847a3b): Bind for 0.0.0.0:3306 failed: port is already allocated
Starting laradock_workspace_1 ... error
ERROR: for laradock_workspace_1 Cannot start service workspace: driver failed programming external connectivity on endpoint laradock_workspace_1 (fd6a03d680c668acae7f6db40ad7f5d9951a267cdf7e7686f66f751f91cece17): Bind for 0.0.0.0:8080 failed: port is already allocated
ERROR: for mysql Cannot start service mysql: driver failed programming external connectivity on endpoint laradock_mysql_1 (a75f179cd36ac95540f346d1c75ff105904cc8717690152ac90b92383c847a3b): Bind for 0.0.0.0:3306 failed: port is already allocated
ERROR: for workspace Cannot start service workspace: driver failed programming external connectivity on endpoint laradock_workspace_1 (fd6a03d680c668acae7f6db40ad7f5d9951a267cdf7e7686f66f751f91cece17): Bind for 0.0.0.0:8080 failed: port is already allocated
and when i try to kill 3306 cause of crashing Docker application
sudo kill `sudo lsof -t -i:3306`
LaraDock configuration:
...
ports:
- "${MYSQL_PORT}:3306"
...
ports:
- "${MARIADB_PORT}:3306"
You should guarantee that MYSQL_PORT and MARIADB_PORT have different values, otherwise Docker will try to allocate the same port for both on host network.
Beside that, when you don't "publish" any port, containers on Docker can run with their own ports, like a lot of containers running with port 80, because, by default, every container has a network interface.
Pay attention on indentation, always use spaces instead of tabs:
...
version: '3.0'
services:
mysql:
image: mysql:5.7
ports:
- "3306:3306"
mariadb:
image: mariadb:10.4
ports:
- "3307:3306"
Related
I have a problem here that I really cannot understand. I already saw few topics here with the same problem and those topics was successfully solved. I basically did the same thing and cannot understand what I'm doing wrong.
I have a Spring application container that tries to connect to a Mongo container through the following Docker Composer:
version: '3'
services:
app:
build: .
ports:
- "8080:8080"
links:
- db
db:
image: mongo
volumes:
- ./database:/data
ports:
- "27017:27017"
In my application.properties:
spring.data.mongodb.uri=mongodb://db:27017/app
Finally, my Dockerfile:
FROM eclipse-temurin:11-jre-alpine
WORKDIR /home/java
RUN mkdir /home/java/bar
COPY ./build/libs/foo.jar /home/java/bar/foo.jar
CMD ["java","-jar", "/home/java/bar/foo.jar"]
When I run docker compose up --build I got:
2022-11-17 12:08:53.452 INFO 1 --- [null'}-db:27017] org.mongodb.driver.cluster : Exception in monitor thread while connecting to server db:27017
Caused by: java.net.UnknownHostException: db
Running the docker compose ps I can see the mongo container running well, and I am able to connect to it through Mongo Compass and with this same Spring Application but outside of container. The difference running outside of container is the host from spring.data.mongodb.uri=mongodb://db:27017/app to spring.data.mongodb.uri=mongodb://localhost:27017/app.
Also, I already tried to change the host for localhost inside of the spring container and didnt work.
You need to specify MongoDB host, port and database as different parameters as mentioned here.
spring.data.mongodb.host=db
spring.data.mongodb.port=27017
spring.data.mongodb.authentication-database=admin
As per the official docker-compose documentation the above docker-compose file should worked since both db and app are in the same network (You can check if they are in different networks just in case)
If the networking is not working, as a workaround, instead of using localhost inside the spring container, use the server's IP, i.e, mongodb://<server_ip>:27017/app (And make sure there is no firewall blocking it)
I have local server with domain mydomain.com it is just alias to localhost:80
And I want to allow make requests to mydomain.com from my running docker-container.
When I'm trying to request to it I see
cURL error 7: Failed to connect to mydomain.com port 80: Connection refused
My docker-compose.yml
version: '3.8'
services:
nginx:
container_name: project-nginx
image: nginx:1.23.1-alpine
volumes:
- ./docker/nginx/conf.d/default.conf:/etc/nginx/conf.d/default.conf
- ./src:/app
ports:
- ${NGINX_PORT:-81}:80
depends_on:
- project
server:
container_name: project
build:
context: ./
environment:
NODE_MODE: service
APP_ENV: local
APP_DEBUG: 1
ALLOWED_ORIGINS: ${ALLOWED_ORIGINS:-null}
volumes:
- ./src:/app
I'm using docker desktop for Windows
What can I do?
I've tried to add
network_mode: "host"
but it ruins my docker-compose startup
When I'm trying to send request to host.docker.internal I see this:
The requested URL was not found on this server. If you entered
the URL manually please check your spelling and try again.
The host network is not supported on Windows. If you are using Linux containers on Windows, make sure you have switched to Linux containers on Docker Desktop. That uses WSL2, so you should be able to use that in there.
I'm pretty new to docker, and I've tried searching about networking but haven't found a solution that's worked.
I have a Laravel app that is using Laradock.
I also have an external 3rd party API that runs in its own docker container.
I basically want to specify the container name of the api inside my laravel .env file, and have it dynamically resolve the container ip so I can make API calls from my Laravel app. I can already do this with services that are already part of laradock like mariadb/mysql, but since my API is located in an external container, it can't connect to it.
I tried making a network and attaching them with;
docker network create my-network
Then inside my docker-compose.yml files for each of the containers, I specified;
networks:
my-network:
name: "my-network"
But if I try and ping them with;
docker exec -ti laradock-workspace-1 ping my-api
I can't connect and can't really figure out why. Was hoping someone familiar with docker might be able to explain why since I'm sure it's something very obvious I'm missing. Thanks!
By default Docker Compose uses a bridge network to provision inter-container communication. Read this article for more info about inter-container networking.
What matters for you, is that by default Docker Compose creates a hostname that equals the service name in the docker-compose.yml file.
Consider the following docker-compose.yml:
version: '3.9'
services:
server:
image: node:16.9.0
container_name: server
tty: true
stdin_open: true
depends_on:
- mongo
command: bash
mongo:
image: mongo
environment:
MONGO_INITDB_DATABASE: my-database
When you run docker-compose up, Docker will create a default network and assigns the service name as hostname for both mongo and server.
You can now access the backend container via:
docker exec -it server bash
And now you can ping the mongo container using Dockers internal network (default on port 27017 in this case):
curl -v http://mongo:27017/my-database
That's it. The same applies for your setup.
I'm setting up grandnode with mondodb in docker using docker compose.
docker-compose.yml
version: "3.6"
services:
mongo:
image: mongo:3.6
volumes:
- mongo_data_db:/data/db
- mongo_data_configdb:/data/configdb
ports:
- 27017:27017
grandnode:
image: grandnode/grandnode:4.10
ports:
- 8080:8080
depends_on:
- mongo
volumes:
mongo_data_db:
external: true
mongo_data_configdb:
external: true
Getting below error while using the docker-compose.
E:\docker\grandnode>docker-compose up
Creating network "grandnode_default" with the default driver
Creating grandnode_mongo_1 ... error
ERROR: for grandnode_mongo_1 Cannot start service mongo: driver failed programming external connectivity on endpoint grandnode_mongo_1 (1e54342c07b093e32189aad487927f226b3ed0d1b6bdf7413588377b0e99bc2c): Error starting userland proxy: mkdir /port/tcp:0.0.0.0:27017:tcp:172.20.0.2:27017: input/output error
ERROR: for mongo Cannot start service mongo: driver failed programming external connectivity on endpoint grandnode_mongo_1 (1e54342c07b093e32189aad487927f226b3ed0d1b6bdf7413588377b0e99bc2c): Error starting userland proxy: mkdir /port/tcp:0.0.0.0:27017:tcp:172.20.0.2:27017: input/output error
ERROR: Encountered errors while bringing up the project.
It happen to me, in Xubuntu 20.04.
The problem was that I had mongod running in my computer.
Stop mongod, was the solution for me.
I did this:
sudo systemctl stop mongod
Check that mongod was stopped with:
systemctl status mongod | grep Active
The output of this command should be:
Active: inactive (dead)
Then, executed again this:
docker-compose up -d
Everything worked as expected.
Unless you want to connect to your MongoDB instance from your local host, you don't need that port mapping "27017:27017".
Both services are on the same network and will see each other anyway. Grandnode can connect to MongoDB at mongo:27017
The problem was because the Shared Drives were unchecked.
Check the drives required
Click Apply
Restart Docker
This will fix the issue.
stop your MongoDB server from your OS.
for linux
sudo systemctl stop mongod
if this still doesn't work then uninstall MongoDB from the local machine and run docker compose once again
for Linux user
sudo systemctl stop MongoDB
sudo docker-compose up -d
TL;DR: How do I have to change my below docker-compose.yml in order to allow one container to use a service of another over a custom (non-standard) port?
I have a pretty common setup: containers for a web app (Padrino [Ruby]), Postgres, Redis, and a queueing framework (Sidekiq). The web app comes with its custom Dockerfile, the remaining services come either from standard images (Postgres, Redis), or mount the data from the web app (Sidekiq). They are ties together via the following docker-compose.yml:
version: '2'
services:
web:
build: .
command: 'bundle exec puma -C config/puma.rb'
volumes:
- .:/myapp
ports:
- "9000:3000"
depends_on:
- postgres
- redis
sidekiq:
build: .
command: 'bundle exec sidekiq -C config/sidekiq.yml -r ./config/boot.rb'
volumes:
- .:/myapp
depends_on:
- postgres
- redis
postgres:
image: postgres:9.5
environment:
POSTGRES_USER: my-postgres-user
POSTGRES_PASSWORD: my-postgres-pass
ports:
- '9001:5432'
volumes:
- 'postgres:/var/lib/postgresql/data'
redis:
image: redis
ports:
- '9002:6379'
volumes:
- 'redis:/var/lib/redis/data'
volumes:
redis:
postgres:
One key point to notice here is that I am exposing the containers services on non-standard ports (9000-9002).
If I start the setup with docker-compose up, the Redis and Postgres containers come up fine, but the containers for the web app and Sidekiq fail since they can't connect to Redis at redis:9002. Remarkably enough, the same setup works if I use 6379 (the standard Redis port) instead of 9002.
docker ps also looks fine afaik:
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
9148566c2509 redis "docker-entrypoint.sh" Less than a second ago Up About a minute 0.0.0.0:9002->6379/tcp rubydockerpadrino_redis_1
e6d47321c939 postgres:9.5 "/docker-entrypoint.s" Less than a second ago Up About a minute 0.0.0.0:9001->5432/tcp rubydockerpadrino_postgres_1
What's even more confusing: I can access the Redis container from the host via redis-cli -h localhost -p 9002 -n 0, but the web app and Sidekiq containers fail to establish a connection.
I am using this docker version on MacOS:
Docker version 1.12.3, build 6b644ec, experimental
Any ideas what I am doing wrong? I'd appreciate any hint how to get my setup running.
When you bind ports like this '9002:6379' you're telling Docker to forward traffic from localhost:9002 -> redis:6379. That's why this works from your host machine:
redis-cli -h localhost -p 9002 -n 0
However, when containers talk to each other, they are all connected to the same network by default (the Docker bridge or docker0). By default, containers can communicate with each other freely on this network, without needing any ports opened. Within this network, your redis container is listening for traffic on it's usual port (6379), host isn't involved at all. That's why your container to container communication works on 6379.