Update config.yml

Author: Gunasekar-K

.circleci/config.yml

@@ -1,18 +1,14 @@
 version: 2
 defaults: &defaults
-    docker:
-      - image: docker:18.06.0-ce-git
+  docker:
+    - image: circleci/python:2.7-stretch-browsers
 install_dependency: &install_dependency
           name: Installation of build and deployment dependencies.
           command: |
-            apk update
-            apk add --no-cache bash
-            apk add --no-cache jq py-pip sudo curl
-            apk upgrade
-            pip install --upgrade pip
+            sudo apt install jq
             sudo pip install awscli --upgrade
-            sudo curl -o /usr/local/bin/ecs-cli https://s3.amazonaws.com/amazon-ecs-cli/ecs-cli-linux-amd64-latest
             sudo pip install docker-compose
+            sudo curl -o /usr/local/bin/ecs-cli https://s3.amazonaws.com/amazon-ecs-cli/ecs-cli-linux-amd64-latest
             sudo chmod +x /usr/local/bin/ecs-cli
             
 install_deploysuite: &install_deploysuite