Remove DOCKER_COMPOSE_IMAGE_TAG requirement

Author: nemchik

readme-vars.yml

@@ -81,23 +81,15 @@ full_custom_readme: |
 
   ### Recommended method
 
-  We provide a very convenient script that allows the docker-compose container to run as if it was installed natively.
-
-  First run the following commands to setup the script:
+  We provide a very convenient script that allows the docker-compose container to run as if it was installed natively:
 
   ```
   export DOCKER_COMPOSE_IMAGE_TAG=ghcr.io/linuxserver/docker-compose:latest
   sudo curl -L --fail https://raw.githubusercontent.com/linuxserver/docker-docker-compose/master/run.sh -o /usr/local/bin/docker-compose
   sudo chmod +x /usr/local/bin/docker-compose
   ```
 
-  After running these commands you can issue commands such as `docker-compose up -d` and the docker-compose container will do its job behind the scenes.
-
-  The `DOCKER_COMPOSE_IMAGE_TAG` variable needs to be made persistent in order to continue using our image after logging out or rebooting. To do this you will need to edit `/etc/environment` and add or set the following variable:
-
-  ```
-  DOCKER_COMPOSE_IMAGE_TAG=ghcr.io/linuxserver/docker-compose:latest
-  ```
+  Running these two commands on your docker host once will let you issue commands such as `docker-compose up -d` and the docker-compose container will do its job behind the scenes.
 
   ### Binaries
 
@@ -142,7 +134,7 @@ full_custom_readme: |
 
   ## Versions
 
-  * **03.11.20:** - Update run.sh with formatting changes. IMPORTANT!! This now requires a `DOCKER_COMPOSE_IMAGE_TAG` variable to be set in order to use our image! See https://github.com/linuxserver/docker-docker-compose#recommended-method for instructions!
+  * **03.11.20:** - Update run.sh with formatting changes.
   * **04.10.20:** - Update run.sh with changes from upstream.
   * **31.08.20:** - Update tox and virtualenv.
   * **31.07.20:** - Add support for global env var `DOCKER_COMPOSE_IMAGE_TAG` in the `run.sh` script.

run.sh

@@ -68,4 +68,4 @@ if docker info --format '{{json .SecurityOptions}}' 2> /dev/null | grep -q 'name
 fi
 
 # shellcheck disable=SC2086
-exec docker run --rm ${DOCKER_RUN_OPTIONS} ${DOCKER_ADDR} ${COMPOSE_OPTIONS} ${VOLUMES} -w "${PWD}" "${DOCKER_COMPOSE_IMAGE_TAG:-docker/compose:1.27.4}" "$@"
+exec docker run --rm ${DOCKER_RUN_OPTIONS} ${DOCKER_ADDR} ${COMPOSE_OPTIONS} ${VOLUMES} -w "${PWD}" "${DOCKER_COMPOSE_IMAGE_TAG:-ghcr.io/linuxserver/docker-compose:latest}" "$@"