adding docker-compose file and add_user script

docker-compose.yml

@@ -0,0 +1,21 @@
+version: '3'
+
+services:
+  registry:
+    container_name: "docker-registry"
+    image: registry:2
+
+    volumes:
+      - ./data/reg_data:/var/lib/registry/
+      - ./data/reg_auth:/auth
+    
+    environment:
+      - "REGISTRY_AUTH=htpasswd"
+      - "REGISTRY_AUTH_HTPASSWD_REALM=Registry"
+      - "REGISTRY_AUTH_HTPASSWD_PATH=/auth/htpassword"
+    
+    ports:
+      - 5000:5000
+
+    restart: always
+

scripts/add_user.sh

@@ -0,0 +1,33 @@
+#! /bin/bash
+USERNAME=$1
+SCRIPT_USER=$USER
+USER_HOME=$HOME
+
+# Make sure a user is supplied
+if [[ -z "$USER" ]]; then
+	echo "Username is required"
+	echo "./add_user.sh <user>"
+	exit
+fi
+
+# Get password inputs
+read -sp "Enter the account password: " PASS
+echo ""
+read -sp "Enter the password again: " PASS2
+echo ""
+
+# Make sure passwords match
+if [ "$PASS" != "$PASS2" ]; then
+	echo "Passwords do not match"
+	exit
+fi
+
+# Make sure the auth folder exists
+mkdir -p ~/deployment/data/reg_auth
+
+# Add the new user and password to the registry (using docker to avoid dependencies)
+# Then if docker doesn't crash, print a msg to stdout for the end user
+sudo docker run --rm \
+  --entrypoint htpasswd \
+  httpd:2 -Bbn $USERNAME $PASS >> $USER_HOME/deployment/data/reg_auth/htpassword && \
+echo "Made user $USERNAME"