Add HEALTHCHECK

tomohiro · Apr 5, 2020 · 93b7c74 · 93b7c74
1 parent db8cfac
commit 93b7c74
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/Dockerfile b/Dockerfile
@@ -5,7 +5,7 @@ COPY Gemfile .
 COPY Gemfile.lock .
 
 RUN set -ex \
-    && apk add --update --no-cache build-base=0.5-r1 \
+    && apk add --update --no-cache curl=7.67.0-r0 build-base=0.5-r1 \
     && bundle config frozen true \
     && bundle install --jobs=4 --without="test:development" \
     && rm -rf "${BUNDLE_PATH}/cache/*"
@@ -22,3 +22,5 @@ COPY . .
 EXPOSE 8080
 ENTRYPOINT ["bundle"]
 CMD ["exec", "rackup", "--host", "0.0.0.0", "-p", "8080"]
+
+HEALTHCHECK CMD curl -s -S -o /dev/null http:/0:8080 || exit 1