I have a docker compose file that looks like this
version: '3'
services:
mongodb:
container_name: mongodb
restart: always
image: mongo:4.2.22
networks:
- mynetwork
ports:
- 27017:27017
webapp:
container_name: webapp
image: webapp:1.0
build:
context: .
dockerfile: WebApp
I can run the command docker-compose up -d --build and read/write from the Mongo db. But if I change the DockerFile to be
version: '3'
services:
mongodb:
container_name: mongodb
restart: always
image: mongo:4.2.22
networks:
- mynetwork
ports:
- 27017:27017
webapp:
container_name: webapp
image: webapp:2.0
build:
context: .
dockerfile: WebApp
and run the aforementioned command, the build completes successfully but I do get the error
ERROR: for webapp
Cannot start service webapp: container <container-id> encountered an error during hcsshim::System::CreateProcess:
failure in a Windows system call: The system cannot find the file specified. (0x2)
The code between v1 and v2 is very similar except in v2 I create a couple of new databases. If I switch my docker-compose file to use v1 the containers come up just fine. Curious as to what is causing the error and was wondering if anyone had some suggestions.
docker logs <containerid> does not show anything either.
Thank you
Related
Problem
I am trying to containerize a full stack app. For now, I am putting the front-end aside, so I am trying to set up only three containers :
PostgreSQL
RethinkDB
NestJS
But when I try to run my containers with
docker-compose up
the NestJS container can't access the RethinkDB container.
Code
docker-compose.yaml
version: "3.9"
services:
opm_postgres:
container_name: opm_postgres_1
image: postgres
restart: always
environment:
POSTGRES_PASSWORD: *******
POSTGRES_USER: postgres
volumes:
- 'opm_postgres:/var/lib/postgresql/data'
opm_adminer:
container_name: opm_adminer_1
image: adminer
restart: always
ports:
- 8085:8080
opm_rethink:
container_name: opm_rethink_1
image: rethinkdb
restart: always
ports:
- 28016:28015
- 8084:8080
volumes:
- 'opm_rethink:/data'
opm_back:
container_name: opm_back_1
build: ../OPM-back
restart: always
ports:
- "3000:3000"
volumes:
opm_postgres:
opm_rethink:
NestJS Dockerfile (coming from : Ultimate Guide: NestJS Dockerfile For Production [2022])
# Base image
FROM node:14
# Create app directory
WORKDIR /usr/src/app
# A wildcard is used to ensure both package.json AND package-lock.json are copied
COPY package*.json ./
# Install app dependencies
RUN npm install
# Bundle app source
COPY . .
# Creates a "dist" folder with the production build
RUN npm run build
# Start the server using the production build
CMD [ "node", "dist/main.js" ]
Logs
docker-compose up
docker ps
Additional info
I used the containers names as DB hosts, both for RethinkDB and PostgreSQL.
Also, when I comment the rethink part in my docker-compose.yaml, everything works fine, I can call a route on my NestJS API and it queries correctly in my PostgreSQL db. The problem seems to be specific to RethinkDB.
I built a REST API using spring boot frame work. In the application I am trying to connect to mongo servers which I am successfully connected to while running in an IDE.
But when I try to run it in a docker I am facing the below issue.
Please help me solve it.
com.mongodb.MongoSocketException: qa-***mongo02.aws.*****.local: Name or service not known
Sharing my docker-compose.yml
Hope this helps.
version: "3.7"
services:
playground_spring_test1_java:
container_name: playground_spring_test1_java
build:
context: ./demo
dockerfile: Dockerfile
stdin_open: true
# env_file:
# - ./dev.env
tty: true
volumes:
- "./demo:/app"
ports:
- 80:8080
playground_spring_test1_mongo:
container_name: playground_spring_test1_mongo
image: mongo
volumes:
- playground_spring_test1_mongo_data:/data/db
ports:
- 27017:27017
volumes:
playground_spring_test1_mongo_data:
Im using MongoTemplate and my application.properties is-
spring.data.mongodb.uri=mongodb://playground_spring_test1_mongo:27017/?authSource=admin
I'm using docker-compose version 1.25.5, build 8a1c60f6 &
Docker version 19.03.8, build afacb8b
I'm trying to initialise database with Users in MongoDb container using docker-entrypoint-initdb.d but,
js/scripts aren't being executed when container starts.
I know /data/db must be empty for it execute so I've been deleting it every time before start. But still doesn't execute. Going into the container and manually executing mongo mongo-init.js works.
Not sure why it's not working when it should.
docker-compose.yml:
version: '3'
services:
mongodb:
container_name: "mongodb"
image: tonyh308/cv-mongodb:1
build: ./mongo
container_name: mongodb
restart: always
ports:
- 27017:27017
environment:
MONGO_INITDB_DATABASE: test
volumes:
- ./docker-entrypoint-initdb.d/mongo-init.js:/docker-entrypoint-initdb.d/mongo-init.js:ro
- ./mongo/mongodb:/data/db
labels:
com.qa.description: "MongoDb Container for application."
# other services ...
Dockerfile:
FROM mongo:3.6.18-xenial
RUN apt-get update
COPY ./Customers /Customers
COPY ./test /test
WORKDIR /data
ENTRYPOINT ["mongod", "--bind_ip_all"]
EXPOSE 27017
Feb 26 2021: still no solution
I'm building a dockerfile. But I meet a problem. It says that :
/bin/sh: 1: mongod: not found
My dockerfile:
FROM mongo:latest
FROM node
RUN mongod
COPY . .
RUN node ./scripts/import-data.js
Here is what happen when docker build:
Sending build context to Docker daemon 829.5MB
Step 1/8 : FROM rabbitmq
---> e8261c2af9fe
Step 2/8 : FROM portainer/portainer
---> 00ead811e8ae
Step 3/8 : FROM docker.elastic.co/elasticsearch/elasticsearch:6.5.1
---> 32f93c89076d
Step 4/8 : FROM mongo:latest
---> 5976dac61f4f
Step 5/8 : FROM node
---> b074182f4154
Step 6/8 : RUN mongod
---> Running in 0a4b66a77178
/bin/sh: 1: mongod: not found
The command '/bin/sh -c mongod' returned a non-zero code: 127
Any idea ?
The problem is that you are using two FROM instructions, which is referred to as a multi-stage build. The final image will be based on the node image that doesn't contain the mongo database.
* Edit *
here are more details about what is happening:
FROM mongo:latest
the base image is mongo:latest
FROM node
now the base image is node:latest. The previous image is just standing there...
RUN mongod
COPY . .
RUN node ./scripts/import-data.js
now you run mongod and the other commands in your final image that is based on node (which doesn't contain mongo)
It happens because multiple FROM instructions should be used for Multistage Build (check the documentation) and NOT for image creation contains all of present applications.
Multistage builds provide you possibility of delegation building process into container's environment without local application installation.
FROM rabbitmq
...some instructions require rabbitmq...
FROM mongo:latest
...some instructions require mongo...
In other words if you want to create an image with rabbitmq, mongo and other application you have to choose the image and install applications manually.
Use docker-compose (https://docs.docker.com/compose/install/) to run the images rather than attempting to build a new image from a collection of existing images. Your docker-compose.yml might look something like:
version: '3.7'
services:
portainer:
image: 'portainer/portainer'
container_name: 'portainer'
hostname: 'portainer'
domainname: 'example.com'
volumes:
- '/var/run/docker.sock:/var/run/docker.sock'
- 'portainer_data:/data'
ports:
- '9000:9000'
rabbitmq:
image: 'rabbitmq'
container_name: 'rabbitmq'
hostname: 'rabbitmq'
domainname: 'example.com'
volumes:
- 'rabbitmq_data:/var/lib/rabbitmq'
elasticsearch:
image: 'elasticsearch:7.1.1'
container_name: 'elasticsearch'
hostname: 'elasticsearch'
domainname: 'example.com'
environment:
- 'discovery.type=single-node'
volumes:
- 'elasticsearch_data:/usr/share/elasticsearch/data'
ports:
- '9200:9200'
- '9300:9300'
node:
image: 'node:12'
container_name: 'node'
hostname: 'node'
domainname: 'example.com'
user: 'node'
working_dir: '/home/node/app'
environment:
- 'NODE_ENV=production'
volumes:
- './my-app:/home/node/app'
ports:
- '3000:3000'
command: 'npm start'
mongo:
image: 'mongo'
container_name: 'mongo'
hostname: 'mongo'
domainname: 'example.com'
restart: 'always'
environment:
- 'MONGO_INITDB_ROOT_USERNAME=root'
- 'MONGO_INITDB_ROOT_PASSWORD=example'
volumes:
- 'mongo_data:/data/db'
volumes:
portainer_data:
rabbitmq_data:
elasticsearch_data:
mongo_data:
I see, quite simple
step1. create this Dockerfile:
FROM mongo:latest
step2. create image from this Dockerfile:
docker build . -t my_mongo_build
This is equal to docker run ..... mongo:latest, used for some strange scenario
version: '3'
services:
db:
image: postgres
web:
build: .
command: python3 manage.py runserver 0.0.0.0:8000
volumes:
- .:/code
ports:
- "8000:8000"
depends_on:
- db
Why I don't lose data when running docker-compose build --force-em --no-cache. If this is normal, why do we need to create volume for data folder ?
When running the command docker-compose build --force-em --no-cache, this will only build the web Docker image from the Dockerfile which in your case is in the same directory.
This command will not stop the containers that you have previously started using this compose file, thus you want lose any data when running this command.
However, as soon as you remove the containers using docker-compose down or when containers are stopped docker-compose rm, you won't find the postgres data when you restart the container.
If you want to persist the data, and make the container pick it up when it is recreated, you need to give the postgres data volume a name as such.
version: '3'
services:
db:
image: postgres
volumes:
- pgdata:/var/lib/postgresql/data
web:
build: .
command: python3 manage.py runserver 0.0.0.0:8000
volumes:
- .:/code
ports:
- "8000:8000"
depends_on:
- db
Now the postgres data won't be lost when the containers are recreated.