Add APP_PORT to .env

Author: miguno

.env

@@ -11,6 +11,9 @@
 
 PROJECT_VERSION="1.0.0-alpha"
 
+# App-related settings
+APP_PORT=8123 # must match port setting in `main.go` and EXPOSE in `Dockerfile`
+
 # Docker-related settings
 DOCKER_IMAGE_NAME="miguno/golang-docker-build-tutorial"
 DOCKER_IMAGE_TAG="latest"

justfile

@@ -98,7 +98,7 @@ run:
 
 # send request to the app's HTTP endpoint (requires running container)
 send-request-to-app:
-    curl http://localhost:8123/status
+    @curl http://localhost:${APP_PORT}/status
 
 # run tests with colorized output (requires https://github.com/kyoh86/richgo)
 test *FLAGS:

start_container.sh

@@ -5,8 +5,6 @@
 # `-o pipefail`: Prevent errors in a pipeline (`|`) from being masked
 set -uo pipefail
 
-declare -r APP_PORT=8123
-
 # Import environment variables from .env
 set -o allexport && source .env && set +o allexport
 echo "Starting container for image '$DOCKER_IMAGE_NAME:$DOCKER_IMAGE_TAG', exposing port ${APP_PORT}/tcp"