name: document-interpolation
x-future: "future-${FUTURE:-enabled}"
services:
app:
image: "example/app:${TAG}"
command: 'echo ${SINGLE_QUOTED}'
environment:
- "VALUE=${VALUE:-default}"
- "RUNTIME=$$RUNTIME"
- BLOCKED=${MISSING}
- plain
labels:
"${LABEL_KEY}": "${LABEL_VALUE}"
static: unchanged