Fix docker/podman discovery script for podman-compose. (#96)

* Fix docker/podman discovery script for podman-compose.

* Fix docker/podman discovery in Makefile -- fixes lint and pr-check.

* Update to correct kessel relations image location.

* Remove superfluous and obsolete -compose check.

Makefile

@@ -1,9 +1,7 @@
 GOHOSTOS:=$(shell go env GOHOSTOS)
 GOPATH:=$(shell go env GOPATH)
 VERSION=$(shell git describe --tags --always)
-
-DOCKER ?= docker
-DOCKER_CONFIG="${PWD}/.docker"
+DOCKER := $(shell type -P podman || type -P docker)
 
 ifeq ($(GOHOSTOS), windows)
 	#the `find.exe` is different from `find` in bash/shell.

docker-compose.yaml

@@ -2,7 +2,7 @@ version: "3.8"
 
 services:
   rebac:
-    image: "quay.io/ciam_authz/insights-rebac:latest"
+    image: "quay.io/cloudservices/kessel-relations:latest"
     environment:
       - "SPICEDB_PRESHARED=${SPICEDB_GRPC_PRESHARED_KEY}"
       # - "SPICEDB_PRESHARED_FILE=/run/secrets/spicedb_pre_shared"

spicedb/check_docker_podman.sh

@@ -18,13 +18,5 @@ else
     echo "Podman not found. Please install either Docker or Podman to proceed."
     exit 1
   fi
-
-   # Check if Podman is installed
-    if command_exists docker-compose; then
-      echo "docker-compose is installed."
-    else
-      echo "docker-compose not found. Please install either docker-compose or podman-compose to proceed."
-      exit 1
-    fi
 fi