Hey there! If you’re scratching your head over the “network must be a mapping, not an array” error in your Docker Compose file, don’t sweat it – happens to the best of us! This little snag usually crops up when there’s a tiny syntax hiccup in the networks
section. The trick here is to ensure that the networks
part is set up like a cool map, you know, with keys and values, instead of resembling an array.
Here’s a nifty example to steer you in the right direction:
version: '3' services: service1: image: your_image networks: - network1 - network2 service2: image: your_image networks: - network2 networks: network1: network2:
Couple of pointers: keep the networks
section hanging out just outside the services
gang, and let each network shine as a key, with optional configurations if they’re feeling fancy (not shown in this laid-back example).
Give your Docker Compose file a once-over, making sure it follows this easygoing structure. If you spill more details or your specific Docker Compose file, I’m here to lend a hand!