找不到Docker启动脚本

Question

I am using Docker for Windows 10 to start up a eureka and configuration server. I'm trying to add startup script to ensure eureka has fully started before starting the config server. The following files are stored at the root of my project:

Dockerfile - config server

FROM openjdk:8-jdk-alpine
RUN  apk update && apk upgrade && apk add netcat-openbsd && apk add curl
RUN mkdir -p /usr/local/configserver
ADD ./target/config-server-0.0.1-SNAPSHOT.jar /usr/local/configserver/
ADD run.sh run.sh
RUN chmod +x run.sh
CMD ./run.sh

run.sh

#!/bin/sh

echo "********************************************************"
echo "Waiting for the eureka server to start  on port $EUREKASERVER_PORT"
echo "********************************************************"
while ! `nc -z eurekaserver $EUREKASERVER_PORT`; do sleep 3; done
echo ">>>>>>>>>>>> Eureka Server has started"

echo "********************************************************"
echo "Starting Configuration Server
echo "********************************************************"
java -jar /usr/local/configserver/config-server-0.0.1-SNAPSHOT.jar

Using the following docker-compose:

docker-compose.yml

version: '2.2'
services:
    eurekaserver:
        image: eureka-naming-server
        ports:
            - "8761:8761"
    configserver:
        image: config-server
        ports:
            - "10000:10000"
        environment:
            EUREKASERVER_PORT: 8761
            EUREKASERVER_URI: "http://eurekaserver:8761/eureka/"

I get the following output:

C:\docker\prj> docker-compose -f docker-compose.yml up
Creating eureka-naming-server_configserver_1 ... done
Creating eureka-naming-server_eurekaserver_1 ... done
Attaching to eureka-naming-server_configserver_1, eureka-naming-server_eurekaserver_1
configserver_1  | /bin/sh: ./run.sh: not found

Any ideas as to why run.sh cannot be found? Thanks

Answer 1

My dear i think your problem is with this :

ADD run.sh run.sh

you are trying to copy run.sh from your host machine to your docker image, ensure that run.sh exists in your project directory which is in your case it should be beside Dockerfile.

I've a running example like your case in my git repo : https://github.com/iabughosh/microservices , develop branch, it is not merged to master yet.

Answer 2

you don't specify the dockerfile in your docker-compose file. You need to remove the image: xyz and instead write build: . (assuming the dockerfile is on the same location as the docker-compose.yml)

As it is, your dockerfile is never even built