- Layerfile Reference
- WAIT
WAIT [layerfile paths...]
The WAIT instruction allows you to make one step require other steps to
succeed before running.
It’s especially useful for conditional actions like executing notifications, deployment, and CI/CD.
Examples
Continuous deployment with WAIT
Layerfile
# at deploy/Layerfile
FROM vm/ubuntu:18.04
# Wait for the layerfiles at /unit-tests/Layerfile and /acceptance-tests/Layerfile
WAIT /unit-tests /acceptance-tests
RUN ./notify-slack.sh
RUN ./deploy.sh
Conditional deployment with WAIT and BUTTON
Layerfile
# at deploy/Layerfile
FROM vm/ubuntu:18.04
# Wait for the layerfiles at /unit-tests/Layerfile and /acceptance-tests/Layerfile
WAIT /unit-tests /acceptance-tests
RUN ./notify-slack.sh
BUTTON deploy?
RUN ./deploy.sh
What the job view will look like with WAIT
- Notice that deploy only occurs after all of the other layerfiles have succeeded.
- This layerfile is available here