Use faucet from NPM

docs/faucet.Dockerfile

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+# The only officially supported distribution channel of the faucet binary is @cosmwasm/faucet on npmjs.com
+# This is an example file of how to wrap the faucet in a docker container.
+# This file will be outdated very soon, but should work as a template for your custom docker setup.
+
+# Coose from https://hub.docker.com/_/node/
+FROM node:12.14.1-alpine
+
+RUN yarn global add @cosmwasm/faucet@0.0.3
+
+# Check it exists
+RUN /usr/local/bin/cosmwasm-faucet version
+
+EXPOSE 8000
+ENTRYPOINT ["/usr/local/bin/cosmwasm-faucet"]
+CMD [""]