haproxy.cfg

global
    log /dev/log local0
    log /dev/log local1 notice
    maxconn 2000
    user haproxy
    group haproxy
    daemon

defaults
    log     global
    mode    http
    option  httplog
    timeout connect 5000ms
    timeout client  50000ms
    timeout server  50000ms

frontend http_front
    bind *:80
    mode http
    
    # CORS Headers
    http-response set-header Access-Control-Allow-Origin "*"
    http-response set-header Access-Control-Allow-Headers "*"
    http-response set-header Access-Control-Allow-Methods "GET, POST, PUT, DELETE, OPTIONS"

    # Pre-flight
    acl preflight method OPTIONS
    http-request return status 204 if preflight

    # Routes
    acl is_auth path_beg /auth-backend
    acl is_videos path_beg /videos-backend
    acl is_watchlist path_beg /watchlist-backend

    use_backend auth_backend if is_auth
    use_backend videos_backend if is_videos
    use_backend watchlist_backend if is_watchlist
    default_backend frontend_backend

backend frontend_backend
    mode http
    server frontend frontend:8080 check

backend auth_backend
    mode http
    http-request replace-path /auth-backend/(.*) /\1
    server auth auth_service:5000 check

backend videos_backend
    mode http
    http-request replace-path /videos-backend/(.*) /\1
    server videos video_service:5001 check

backend watchlist_backend
    mode http
    http-request replace-path /watchlist-backend/(.*) /\1
    server watchlist watchlist_service:5002 check