fix env var setup

Jenkinsfile

@@ -38,7 +38,7 @@ pipeline {
             steps {
                 script {
                    echo 'deploying docker image to EC2...'
-                   def dockerComposeCmd = "docker-compose -f docker-compose.yaml up"
+                   def dockerComposeCmd = "docker-compose -f docker-compose.yaml up --detach"
                    sshagent(['ec2-server-key']) {
                        sh "scp docker-compose.yaml ec2-user@35.180.251.121:/home/ec2-user"
                        sh "ssh -o StrictHostKeyChecking=no ec2-user@35.180.251.121 ${dockerComposeCmd}"

docker-compose.yaml

@@ -9,4 +9,4 @@ services:
       ports:
         - 5432:5432
       environment:
-        - POSTGRES_PASSWORD:my-pwd
+        - POSTGRES_PASSWORD=my-pwd