Docker没有捕获env vars

Question

I'm trying to run 3 containers through docker-compose, with postgres, cassandra and my webapp, wich has a embedded tomcat server with some dependencies as ARP/Native. This libraries are located in a folder called "lib" at jar's same level.

I'm running a PoC on Windows 10 (using linux containers) before moving it to a CentOS server, if it works on the PoC. I searched over the net and seems like is not an isolated problem but or i have no find the solution, or the solution showed didnt work for me. Here is my docker-compose.yml, with all the related files/folders storaged at same level:

version: '3.1' 

services:
fulmar-webapp:
    container_name: "my-webapp"
    image: openjdk:11-jre-slim
    hostname: mywebapp
    volumes:
        - ./lib:/home/lib
        - ./fulmar-1.0.1-SNAPSHOT-exec.jar:/home/mywebapp-1.0.1-SNAPSHOT-exec.jar

    entrypoint:
        - java
        - -jar
        - /home/mywebapp-1.0.1-SNAPSHOT-exec.jar

    environment:
        - LD_LIBRARY_PATH:/home/lib

        - spring.datasource.url=jdbc:postgresql://postgresql:5432/mydb
        - spring.datasource.username=postgres
        - spring.datasource.password=postgres
        - spring.jpa.hibernate.ddlAuto=update

    network_mode: bridge    
    ports:
        - 8443:8443
        - 8080:8080
    links:
        - postgresql 
        - cassandra     

postgresql:

    container_name: "mydb"
    image: postgres:11.1-alpine
    restart: always
    environment:
        POSTGRES_DB: mydb
        POSTGRES_USER: postgres
        POSTGRES_PASSWORD: postgres
    volumes:
       - ./startup.sql:/docker-entrypoint-initdb.d/startup.sql 
       - postgresdata:/var/lib/postgresql/data

    ports:
        - 5432:5432
    network_mode: bridge


cassandra:
    container_name: "cassandra"
    image: cassandra
    ports:
        - 9042:9042
    network_mode: bridge

volumes: postgresdata:

Not sure if is not properly mapping the folder with the libraries, or is not actually mounting the volume. This is exactly the Enviroment var I need to put in there: Environment=LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/path/to/libraries/lib

Two results I have encountered:

1-Tomcat exception cause it can not find the libraries:

[ERROR][org.apache.catalina.util.LifecycleBase#log(175)] Failed to 
initialize component [Connector[org.apache.coyote.http11.Http11AprProtocol- 
8080]] | org.apache.catalina.LifecycleException: The configured protocol 
[org.apache.coyote.http11.Http11AprProtocol] requires the APR/native library 
which is not available

2-WARNING: The LD_LIBRARY_PATH variable is not set. Defaulting to a blank string.

Thanks you all in advance

EDIT: just let you know the once i run docker-compose up, and my app throws this exception, the container is no longer available so i'm unable to run any commands in it

Answer 1

You have a wrong syntax, it should be like this:

environment:
    - LD_LIBRARY_PATH=/home/lib