add healthcheck for http services

core/admin/Dockerfile

@@ -4,7 +4,7 @@ RUN mkdir -p /app
 WORKDIR /app
 
 COPY requirements-prod.txt requirements.txt
-RUN apk add --no-cache openssl \
+RUN apk add --no-cache openssl curl \
  && apk add --no-cache --virtual build-dep openssl-dev libffi-dev python-dev build-base \
  && pip install -r requirements.txt \
  && apk del --no-cache build-dep
@@ -20,3 +20,5 @@ EXPOSE 80/tcp
 VOLUME ["/data"]
 
 CMD ["/start.sh"]
+
+HEALTHCHECK CMD curl -f -L http://localhost/ui || exit 1

core/nginx/Dockerfile

@@ -1,6 +1,6 @@
 FROM alpine:3.8
 
-RUN apk add --no-cache certbot nginx nginx-mod-mail openssl \
+RUN apk add --no-cache certbot nginx nginx-mod-mail openssl curl \
  python py-jinja2 py-requests-toolbelt py-pip \
  && pip install --upgrade pip \
  && pip install idna
@@ -12,3 +12,5 @@ EXPOSE 80/tcp 443/tcp 110/tcp 143/tcp 465/tcp 587/tcp 993/tcp 995/tcp 25/tcp 100
 VOLUME ["/certs"]
 
 CMD /start.py
+
+HEALTHCHECK CMD curl -f -L http://localhost/ || exit 1

docs/Dockerfile

@@ -3,7 +3,7 @@ FROM python:3-alpine
 COPY requirements.txt /requirements.txt
 
 RUN pip install -r /requirements.txt \
- && apk add --no-cache nginx \
+ && apk add --no-cache nginx curl \
  && mkdir /run/nginx
 
 COPY ./nginx.conf /etc/nginx/conf.d/default.conf
@@ -11,4 +11,8 @@ COPY . /docs
 
 RUN sphinx-build /docs /build
 
-CMD nginx -g "daemon off;"
+EXPOSE 80/tcp
+
+CMD nginx -g "daemon off;"
+
+HEALTHCHECK CMD curl -f -L http://localhost/ || exit 1

optional/radicale/Dockerfile

@@ -1,7 +1,7 @@
 FROM alpine:edge
 
 RUN echo "@testing http://nl.alpinelinux.org/alpine/edge/testing" >> /etc/apk/repositories \
- && apk add --no-cache radicale@testing py-dulwich@testing
+ && apk add --no-cache radicale@testing py-dulwich@testing curl
 
 COPY radicale.conf /radicale.conf
 
@@ -9,3 +9,5 @@ EXPOSE 5232/tcp
 VOLUME ["/data"]
 
 CMD radicale -f -S -C /radicale.conf
+
+HEALTHCHECK CMD curl -f -L http://localhost:5232/ || exit 1

services/rspamd/Dockerfile

@@ -1,6 +1,6 @@
 FROM alpine:3.8
 
-RUN apk add --no-cache python py-jinja2 rspamd rspamd-controller rspamd-proxy ca-certificates py-pip \
+RUN apk add --no-cache python py-jinja2 rspamd rspamd-controller rspamd-proxy ca-certificates py-pip curl \
  && pip install --upgrade pip \
  && pip install tenacity
 
@@ -17,3 +17,5 @@ EXPOSE 11332/tcp 11334/tcp
 VOLUME ["/var/lib/rspamd"]
 
 CMD /start.py
+
+HEALTHCHECK CMD curl -f -L http://localhost:11334/ || exit 1

setup/Dockerfile

@@ -4,7 +4,7 @@ RUN mkdir -p /app
 WORKDIR /app
 
 COPY requirements.txt requirements.txt
-RUN apk add --no-cache git \
+RUN apk add --no-cache git curl \
  && pip install -r requirements.txt
 
 COPY server.py ./server.py
@@ -16,3 +16,5 @@ RUN python setup.py https://github.com/mailu/mailu /data
 EXPOSE 80/tcp
 
 CMD gunicorn -w 4 -b :80 --access-logfile - --error-logfile - --preload main:app
+
+HEALTHCHECK CMD curl -f -L http://localhost/ || exit 1

webmails/rainloop/Dockerfile

@@ -3,7 +3,7 @@ FROM php:7.2-apache
 ENV RAINLOOP_URL https://github.com/RainLoop/rainloop-webmail/releases/download/v1.12.1/rainloop-community-1.12.1.zip
 
 RUN apt-get update && apt-get install -y \
-      unzip python3 python3-jinja2 \
+      unzip python3 python3-jinja2 curl \
  && rm -rf /var/www/html/ \
  && mkdir /var/www/html \
  && cd /var/www/html \
@@ -29,3 +29,5 @@ EXPOSE 80/tcp
 VOLUME ["/data"]
 
 CMD /start.py
+
+HEALTHCHECK CMD curl -f -L http://localhost/ || exit 1

webmails/roundcube/Dockerfile

@@ -3,7 +3,7 @@ FROM php:7.2-apache
 ENV ROUNDCUBE_URL https://github.com/roundcube/roundcubemail/releases/download/1.3.7/roundcubemail-1.3.7-complete.tar.gz
 
 RUN apt-get update && apt-get install -y \
-      zlib1g-dev \
+      zlib1g-dev curl \
  && docker-php-ext-install zip \
  && echo date.timezone=UTC > /usr/local/etc/php/conf.d/timezone.ini \
  && rm -rf /var/www/html/ \
@@ -28,3 +28,5 @@ EXPOSE 80/tcp
 VOLUME ["/data"]
 
 CMD ["/start.sh"]
+
+HEALTHCHECK CMD curl -f -L http://localhost/ || exit 1