How to mount windows folder using docker compose volumes?
I am trying to set up docker container using docker-compose.
My docker-compose.yml file looks as follow:
php-fpm:
build: php-fpm
container_name: php-fpm
volumes:
- ../project:/var/www/dev
When i enter to the container like this:
docker exec -it php-fpm bash
And display content with ls command the /var/www/dev directory is empty.
Does enyone know the solution for this ?
$ docker -v
Docker version 1.12.0, build 8eab29e
$ docker-compose -v
docker-compose version 1.8.0, build d988a55
I have Windows 10 and docker is installed via Docker ToolBox 1.12.0
#edit
The mounted directory is also empty under Linux enviroment
I fixed it by going to: Local Security Policy > Network List Manager Policies and Double-clicked unidentified Networks then change the location type to private and restarted Docker. Source
Related
The docker compose yml file below keeps the container open after I run docker compose up -d but command: bash does not get executed:
version: "3.8"
services:
service:
container_name: pw-cont
image: mcr.microsoft.com/playwright:v1.30.0-focal
stdin_open: true # -i
tty: true # -t
network_mode: host # --network host
volumes: # Ensures that updates in local/container are in sync
- $PWD:/playwright/
working_dir: /playwright
command: bash
After I spin the container up, I wanted to visit Docker Desktop > Running container's terminal.
Expectation: Since the file has command: bash, I expect that in docker desktop, when I go to the running container's terminal, it will show root#docker-desktop:/playwright#.
Actual: Container's terminal in docker desktop is showing #, still need to type bash to see root#docker-desktop:/playwright#.
Can the yml file be updated so that bash gets auto executed when spinning up the container?
docker compose doesn't provide that sort of interactive connection. Your docker-compose.yaml file is fine; once your container is running you can attach to it using docker attach pw-cont to access stdin/stdout for the container.
$ docker compose up -d
[+] Running 1/1
⠿ Container pw-cont Started 0.1s
$ docker attach pw-cont
root#rocket:/playwright#
root#rocket:/playwright#
I'm not sure what you are trying to achieve, but using the run command
docker-compose run service
gives me the prompt you expect.
I have index.html file in a folder. I am mapping the local directory into the nginx docker container.
When I run the nginx docker container using the command
docker run --name website -v C:\Users\prash\Documents\Programming\Spring\Docker:/usr/share/nginx/html:ro -d -p 8080:80 nginx:latest
The container starts successfully but when I run the following two commands in bash, although the container starts, I can't open index.html file in browser.
docker run --name website -v $(pwd):/usr/share/nginx/html:ro -d -p 8080:80 nginx:latest
What might be the issue here?
I am new to docker, I tried finding the solution for this, but couldn't find anything.
What am I wanting to do?
I want to convert to run my containerized of Spring-Boot's app which is can run on amd64 systems, on Raspberry Pi 4's Docker. How can I fix the my problem?
What's the running OS on Raspberry Pi?
I've installed Ubuntu Server 20.04.2 LTS for arm64 architectures using via Raspberry Pi Imager v1.6.1 on Raspberry Pi 4.
What are the steps I have done to fix the problem?(problem is still continue)
In default version does not work on my Raspberry Pi. Thus, I've tried some couple of things at below.
I changed row of "FROM" from openjdk:15-jdk-slim to arm64v8/openjdk:17 at my dockerfile as you can see:
FROM arm64v8/openjdk:17
COPY . /projects/red-dir
WORKDIR /projects/red-dir
ARG JAR_FILE=target/*.jar
COPY ${JAR_FILE} /projects/red-dir/my_red_app.jar
ENTRYPOINT ["java","-jar","/projects/red-dir/my_red_app.jar"]
Afterwards, I've built and pushed my app using with Maven and Docker:
$ ./mvnw clean package -Dmaven.test.skip=true && java -jar target/my_red_app.jar
$ docker build -t user/my_red_app:v1.0.0 .
Then, My app's depend on a MongoDB, so I changed this image from mongo to arm64v8/mongo on docker-compose.yml as you can see at below:
version: "3"
services:
mongodb:
container_name: mongodb
image: arm64v8/mongo
restart: always
ports:
- 27017:27017
environment:
MONGO_INITDB_ROOT_USERNAME: admin
MONGO_INITDB_ROOT_PASSWORD: 12345
networks:
- shared-net
colour_app:
container_name: my_red_app
image: user/my_red_app
restart: always
ports:
- 7070:7070
depends_on:
- mongodb
networks:
- shared-net
networks:
shared-net:
driver: bridge
Things that work and things that don't work
MongoDB is running. I can reach using via MongoDBCompass, but my Spring-Boot app doesn't work. In docker-compose up command, I've encountered an output like this:
...
...
colour_app | standard_init_linux.go:219: exec user process caused: exec format error
colour_app | standard_init_linux.go:219: exec user process caused: exec format error
colour_app | standard_init_linux.go:219: exec user process caused: exec format error
colour_app | standard_init_linux.go:219: exec user process caused: exec format error
Let me know what things I didn't catch. Thank you for reading.
I've solved my problem and tried to create simple guide for ones who are encountered this problem.
BUILD FOR OTHER OS (multi-architecture / buildx command)
Turn On "experimental" feature's on Docker Settings.
For Linux OS:
sudo nano /etc/docker/daemon.json
Add below content to it:
{
"experimental": true
}
For Win10 OS / MAC OS:
Open Docker Desktop application.
Go to Settings.
Select Docker Engine Tab on the left-side.
Find "experimental": false.
Change it to "experimental": true.
Restart Docker.
Create multi-architecture os. (Important: The image you are using should contain the OS you want to create it)
Creating a just SINGLE OS :
You can use load or push commands.
--load means that docker saves it to local disk:
docker buildx build --load --platform linux/arm64 -t <dockerhub_username>/<repository_name>:<tag_name> .
--push means that docker doesn't save it to local disk but save it to cloud (docker hub):
docker buildx build --push --platform linux/arm64 -t <dockerhub_username>/<repository_name>:<tag_name> .
--load and --push can not be set together.
Creating a MANY OS :
You can just use push command with many OS.
--push means that docker doesn't save it to local disk but save it to cloud (docker hub):
docker buildx build --push --platform linux/amd64,linux/arm64,linux/ppc64le -t <dockerhub_username>/<repository_name>:<tag_name> .
I have spring boot application which I am trying to dockerize for the first time. I am using docker version 20.10.1 and my host pc is ubuntu 20.04
for this spring boot application, I have a data directory , which has data created when the application is running. I want to access this data from the host operating system. That is why I am using volume.
When I try to mount my container to named volume or to a host volume, but it always create anonymous volume regardless of the command I type.
Here is my docker file.
FROM openjdk:15
COPY target/lib/* /usr/src/app/lib/
COPY target/core-api-7.3.6.jar /usr/src/app/lib/core-api-7.3.6.jar
COPY config/application.properties /usr/src/app/config/application.properties
COPY data/poscms/config/* /usr/src/app/data/poscms/config/
WORKDIR /usr/src/app
ENTRYPOINT ["java", "-jar", "lib/core-api-7.3.6.jar"]
VOLUME /usr/src/app/data
/usr/src/app/data this is the directory where core-app.jar application will create its runtime data, I need to access these data from my host pc
Following is the command for building the image
docker build -t core-app:5.0 .
then I create image using following command
docker run -it -d -p 7071:7071 core-app:5.0 -v /home/bob/data/:/usr/src/app/data
when I check the volumes by running following command
docker volume ls
I can see anonymous volume being created by this container
and my host path which is /home/kapila/data/ is empty and container data is not written to host path.
I experience the same behaviour with named volume as well.
I created a named volume using following command
docker volume create tmp
docker run -it -d -p 7071:7071 core-app:5.0 -v tmp:/usr/src/app/data
and still docker create anonymous volume and data is not written to tmp volume
my host PC is ubuntu pc. Could someone point out what I am doing wrong here
I do something like this:
In your project root , have these files pertaining to docker as required:
1. DockerFile 2.docker-compose.yml 3. docker-env-preview.env
DockerFile content
FROM openjdk:8-jdk-alpine
ARG jarfilepath
RUN mkdir /src
WORKDIR /src
VOLUME /src/tomcat
ADD $jarfilepath yourprojectname.jar
docker-compose.yml content
version: '3'
services:
project-name:
container_name: project-name-service
build:
context: .
args:
jarfilepath: ./target/project-0.0.1.jar
env_file:
- docker-env-preview.env
ports:
- "8831:8831"
- '5005:5005'
networks:
- projectname_subnet
command: java -jar -agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=5005 projectname.jar --spring.profiles.active=preview
networks:
project-name_subnet:
external: true
docker-env-preview.env
This file will contain your environment variables values. The applicaiton.properties can read this file to fetch the values, like buildserver.ip=${BUILD_SERVER_DOMAIN}. Basically you define what you want need . Like the example below.
GARBABE_SERVER_DOMAIN=h-db-preview
GARBABE_SERVER_PORT=5422
GARBABE_DB=projectdb
GARBABE_USER=user
GARBABE_PASSWORD=pwd
JPA_DDL_AUTO=validate
JPA_DIALECT=org.hibernate.dialect.PostgreSQLDialect
JPA_SHOW_SQL=false
JPA_SE_SQL_COMMENTS=true
JPA_FORMAT_SQL=false
JPA_NON_CONTEXTUAL_CREATION=true
APP_NAME=project-name-service
BUILD_SERVER_METHOD=http
BUILD_SERVER_DOMAIN=7.8.9.4
Commands to execute :
mvn clean package (if you use maven )
docker-compose up -d --build ( execute docker ps -> check the details on the running container),
To view the logs : sudo docker logs <project-name-service> -f
To get into the container console, docker exec -it <project-name-service> bash
I was able to fix the issue, and only change I did, to make it work, is that, to change the base image from
FROM openjdk:15
to
FROM adoptopenjdk/openjdk15:ubi
and now named and host volume mounts are working as expected. I am not sure what is wrong with official openjdk:15 image.
I am running a simple Hello World world container with docker-compose.
There should be a mounted folder (with my files) at /root/sharedFolder but this folder is empty.
I am running Docker on Ubuntu OS (on top of my Windows server). And this works on a normal Ubuntu machine.
Any ideas?
docker-compose.yaml
version: '3'
services:
web:
build: .
volumes:
- ".:/root/sharedFolder"
Dockerfile:
#FROM - Image to start building on.
FROM ubuntu:14.04
#MAINTAINER - Identifies the maintainer of the dockerfile.
MAINTAINER ian.miell#gmail.com
#RUN - Runs a command in the container
RUN echo "Hello world" > /root/hello_world.txt
#CMD - Identifies the command that should be used by default when running the image as a container.
CMD ["sleep", "400"]
Instead of doing echo in RUN, do it in CMD or ENRTYPOINT. RUN happens during the image build phase where as CMD happens when your container is up and running with the volumes.
RUN is done during image build step
CMD specifies the command executed by default when you run a built
image.
You can also achieve the same with ENTRYPOINT
Google docker RUN vs CMD for more details.