Build docker image from existing release binary upon release

Author: thomaseizinger

.circleci/config.yml

@@ -93,8 +93,9 @@ jobs:
       - install_rust
       - install_node_devlibs
       - print_current_versions
+      - setup_remote_docker
       - run:
-          name: "Package & Publish Release on GitHub"
+          name: "Package & Publish Release on GitHub and Docker Hub"
           command: |
             set -v
             VERSION=$(cargo pkgid -- cnd|cut -d# -f2)
@@ -108,6 +109,12 @@ jobs:
             ls ~/package/
             ghr -t ${GITHUB_TOKEN_FOR_RELEASES} -u ${CIRCLE_PROJECT_USERNAME} -r ${CIRCLE_PROJECT_REPONAME} -c ${CIRCLE_SHA1} -delete ${VERSION} ~/package/
 
+            echo $DOCKER_HUB_TOKEN | docker login -u thomaseizinger --password-stdin
+
+            docker build . -t comitnetwork/cnd:${VERSION} -t comitnetwork/cnd:latest
+            docker push comitnetwork/cnd:${VERSION}
+            docker push comitnetwork/cnd:latest
+
 commands:
   install_node_devlibs:
     steps:

.docker/Dockerfile

@@ -1,6 +1,3 @@
-target/
-.circleci/
-.dependabot/
-.githooks/
-api_tests/
-.docker/Dockerfile
+# The only thing we are interested in the Dockerfile is the release binary, hence we can ignore everything else to speed up the build process
+*
+!target/release/cnd

.docker/README.md

@@ -0,0 +1,18 @@
+FROM debian:buster
+
+RUN apt-get update && \
+    apt-get install -y \
+    tini \
+ && rm -rf /var/lib/apt/lists/*
+
+RUN useradd --create-home --shell /bin/bash cnd
+USER cnd
+
+COPY ./target/release/cnd /usr/local/bin
+
+EXPOSE 9939
+EXPOSE 8000
+
+# tini allows us to CTRL+C our container if it runs in the foreground
+ENTRYPOINT ["tini"]
+CMD ["cnd"]