Docker Command Part-26 By Raj Gupta

When ever we run the docker compose command then it will find the file docker-compose.yml file, If it will not found then it will give the error

[root@ip-172-31-95-65 ~]# mv docker-compose.yml docker-compose2.yml
[root@ip-172-31-95-65 ~]# ls
docker-compose2.yml
[root@ip-172-31-95-65 ~]# docker-compose up
ERROR:
        Can't find a suitable configuration file in this directory or any
        parent. Are you in the right directory?

        Supported filenames: docker-compose.yml, docker-compose.yaml

[root@ip-172-31-95-65 ~]#

If you want to give any other name in place of docker-compose.yml then

[root@ip-172-31-95-65 ~]# docker-compose -f docker-compose2.yml up -d

root_webapp1_1 is up-to-date

root_webapp2_1 is up-to-date

In this case it will not look for default file(docker-compose.yml) in place of it what ever file you will give it will take that one only.

[root@ip-172-31-95-65 ~]# docker-compose -f docker-compose2.yml down

Stopping root_webapp2_1 ... done

Stopping root_webapp1_1 ... done

Removing root_webapp2_1 ... done

Removing root_webapp1_1 ... done

Removing network root_default

[root@ip-172-31-95-65 ~]#

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Docker compose will take json format code also  you can convert yml to json in below link 

http://convertjson.com/yaml-to-json.htm 

[root@ip-172-31-95-65 ~]# vi docker-compose.json

[root@ip-172-31-95-65 ~]# cat docker-compose.json

{

   "version": "3",

   "services": {

      "webapp1": {

         "image": "nginx",

         "ports": [

            "8000:80"

         ]

      },

      "webapp2": {

         "image": "nginx",

         "ports": [

            "8001:80"

         ]

      }

   }

}

[root@ip-172-31-95-65 ~]# docker-compose -f docker-compose.json up -d

Creating network "root_default" with the default driver

Creating root_webapp1_1 ... done

Creating root_webapp2_1 ... done