docker: remove cron and make it a task

Dockerfile

@@ -10,7 +10,7 @@ ENV DEBIAN_FRONTEND=noninteractive \
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends build-essential python3-dev \
-    libldap2-dev libsasl2-dev slapd ldap-utils tox lcov valgrind cron
+    libldap2-dev libsasl2-dev slapd ldap-utils tox lcov valgrind
 
 ARG WORKDIR=/app/discourse-ldap
 
@@ -20,11 +20,11 @@ WORKDIR "$WORKDIR"
 
 COPY pyproject.toml poetry.lock ./
 
-RUN python -m venv /opt/venv && \
-    pip3 install --upgrade pip && \
-    pip3 install poetry && \
+RUN pip install poetry && \
     poetry install --no-dev
 
 COPY . .
 
 ENTRYPOINT ["/app/discourse-ldap/entrypoint.sh"]
+
+CMD ["python", "/app/discourse-ldap/src/main.py"]

entrypoint.sh

-#!/bin/sh
+#!/bin/bash
 
-touch /var/log/cron.log
-set -e
+export PATH="$PATH:/opt/venv/bin:$PATH"
 
-# Cron exec the script every 4 hours
+cd /app/discourse-ldap
 
-mkdir -p /var/log
+echo "Running at $(date)"
 
-echo "0 */4 * * * /app/discourse-ldap/exec.sh >> /var/log/cron.log 2>&1" > /etc/cron.d/ldap-cron
-
-# Run cron
-
-crontab /etc/cron.d/ldap-cron
-
-# Telling next run time
-
-echo "Container started at $(date)" >> /var/log/cron.log
-
-# Exec now
-
-/app/discourse-ldap/exec.sh >> /var/log/cron.log 2>&1 &
-
-# Run cron in background
-cron &
-
-tail -f /var/log/cron.log
+exec "$@"
 

exec.sh

-#!/bin/bash
-
-export PATH="$PATH:/opt/venv/bin:$PATH"
-
-cd /app/discourse-ldap
-
-echo "Running at $(date)"
-python src/main.py
-