NodeJS#
This document describes the specific NodeJS build and deploy configurations.
In this document#
Function and handler#
exports.handler = function(context, event) {
context.callback('');
};
The handler
field is of the form <package>:<entrypoint>
, where <package>
is a dot (.
) separated path (for example, foo.bar
equates to foo/bar.js
) and <entrypoint>
is the function name. In the example above, the handler is handler:handler
, assuming the file is named handler.js
.
Note: A temporary limitation mandates that the file be named
handler.js
.
Dockerfile#
See Deploying Functions from a Dockerfile.
ARG NUCLIO_LABEL=0.5.6
ARG NUCLIO_ARCH=amd64
ARG NUCLIO_BASE_IMAGE=node:10.20-alpine
ARG NUCLIO_ONBUILD_IMAGE=nuclio/handler-builder-nodejs-onbuild:${NUCLIO_LABEL}-${NUCLIO_ARCH}
# Supplies processor uhttpc, used for healthcheck
FROM nuclio/uhttpc:0.0.1-amd64 as uhttpc
# Supplies processor binary, wrapper
FROM ${NUCLIO_ONBUILD_IMAGE} as processor
# From the base image
FROM ${NUCLIO_BASE_IMAGE}
# Copy required objects from the suppliers
COPY --from=processor /home/nuclio/bin/processor /usr/local/bin/processor
COPY --from=processor /home/nuclio/bin/wrapper.js /opt/nuclio/wrapper.js
COPY --from=uhttpc /home/nuclio/bin/uhttpc /usr/local/bin/uhttpc
# Copy the handler directory to /opt/nuclio
COPY . /opt/nuclio
# Readiness probe
HEALTHCHECK --interval=1s --timeout=3s CMD /usr/local/bin/uhttpc --url http://127.0.0.1:8082/ready || exit 1
# Set node modules path
ENV NODE_PATH=/usr/local/lib/node_modules
# Run processor with configuration and platform configuration
CMD [ "processor" ]