How to exec jar file from php script in docker












1















I have php, mysql, nginx in docker.
Now I have to run jar file with parameters from php script.



I've added java to my docker-compose.yml (part of docker-compose is below)



version: '3.2'

services:

  php:

    build: ./configs/php

    restart: always

    volumes:

      - ./app/basic:/var/www/html

    depends_on:

      - db

      - java



  java:

    image: openjdk:7


And I'm trying to execute the following part of code from php script:



$command = "java -jar '/var/www/html/jar/MyFile.jar' command"

exec($command, $output, $return);


I suspect, that exec simple cannot find where java is.
How to make it work?



Many thanks






java php docker







share|improve this question



























    1















    I have php, mysql, nginx in docker.
    Now I have to run jar file with parameters from php script.



    I've added java to my docker-compose.yml (part of docker-compose is below)



    version: '3.2'
    
services:
    
  php:
    
    build: ./configs/php
    
    restart: always
    
    volumes:
    
      - ./app/basic:/var/www/html
    
    depends_on:
    
      - db
    
      - java
    

    
  java:
    
    image: openjdk:7


    And I'm trying to execute the following part of code from php script:



    $command = "java -jar '/var/www/html/jar/MyFile.jar' command"
    
exec($command, $output, $return);


    I suspect, that exec simple cannot find where java is.
    How to make it work?



    Many thanks






    java php docker







    share|improve this question

























      1












      1








      1








      I have php, mysql, nginx in docker.
      Now I have to run jar file with parameters from php script.



      I've added java to my docker-compose.yml (part of docker-compose is below)



      version: '3.2'
      
services:
      
  php:
      
    build: ./configs/php
      
    restart: always
      
    volumes:
      
      - ./app/basic:/var/www/html
      
    depends_on:
      
      - db
      
      - java
      

      
  java:
      
    image: openjdk:7


      And I'm trying to execute the following part of code from php script:



      $command = "java -jar '/var/www/html/jar/MyFile.jar' command"
      
exec($command, $output, $return);


      I suspect, that exec simple cannot find where java is.
      How to make it work?



      Many thanks






      java php docker







      share|improve this question














      I have php, mysql, nginx in docker.
      Now I have to run jar file with parameters from php script.



      I've added java to my docker-compose.yml (part of docker-compose is below)



      version: '3.2'
      
services:
      
  php:
      
    build: ./configs/php
      
    restart: always
      
    volumes:
      
      - ./app/basic:/var/www/html
      
    depends_on:
      
      - db
      
      - java
      

      
  java:
      
    image: openjdk:7


      And I'm trying to execute the following part of code from php script:



      $command = "java -jar '/var/www/html/jar/MyFile.jar' command"
      
exec($command, $output, $return);


      I suspect, that exec simple cannot find where java is.
      How to make it work?



      Many thanks






      java php docker




      java php docker






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 15 '18 at 11:43









      Lari13Lari13

      92082249




      92082249
























          1 Answer
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          In docker the two containers run completely separate from each other, so when you use exec it will try to execute that command within your php container as opposed to in the java container. The only way to start a process in the other container is via a HTTP request where in the Java container an API is running which catches this call and executes the correct JAR accordingly.



          Another solution could be to use a bigger image for your php container which also includes java so you can execute the jar within your php container.



          I hope this answers your question, if anything is unclear please let me know.






          share|improve this answer























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            active

            oldest

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            1














            In docker the two containers run completely separate from each other, so when you use exec it will try to execute that command within your php container as opposed to in the java container. The only way to start a process in the other container is via a HTTP request where in the Java container an API is running which catches this call and executes the correct JAR accordingly.



            Another solution could be to use a bigger image for your php container which also includes java so you can execute the jar within your php container.



            I hope this answers your question, if anything is unclear please let me know.






            share|improve this answer




























              1














              In docker the two containers run completely separate from each other, so when you use exec it will try to execute that command within your php container as opposed to in the java container. The only way to start a process in the other container is via a HTTP request where in the Java container an API is running which catches this call and executes the correct JAR accordingly.



              Another solution could be to use a bigger image for your php container which also includes java so you can execute the jar within your php container.



              I hope this answers your question, if anything is unclear please let me know.






              share|improve this answer


























                1












                1








                1







                In docker the two containers run completely separate from each other, so when you use exec it will try to execute that command within your php container as opposed to in the java container. The only way to start a process in the other container is via a HTTP request where in the Java container an API is running which catches this call and executes the correct JAR accordingly.



                Another solution could be to use a bigger image for your php container which also includes java so you can execute the jar within your php container.



                I hope this answers your question, if anything is unclear please let me know.






                share|improve this answer













                In docker the two containers run completely separate from each other, so when you use exec it will try to execute that command within your php container as opposed to in the java container. The only way to start a process in the other container is via a HTTP request where in the Java container an API is running which catches this call and executes the correct JAR accordingly.



                Another solution could be to use a bigger image for your php container which also includes java so you can execute the jar within your php container.



                I hope this answers your question, if anything is unclear please let me know.







                share|improve this answer












                share|improve this answer



                share|improve this answer










                answered Nov 15 '18 at 11:48









                Sven HakvoortSven Hakvoort

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