Prepare deployment: Build basic deb packages

debian/userausfall.postinst

@@ -0,0 +1,59 @@
+#!/bin/sh
+
+set -eu
+
+APP_NAME=userausfall
+APP_USER=_$APP_NAME
+APP_HOME=/var/lib/$APP_NAME
+APP_ETC=/etc/$APP_NAME
+APP_SETTINGS=$APP_ETC/settings.py
+APP_PID=/var/run/uwsgi/app/$APP_NAME/pid
+APP_UWSGI_CONFIG=/etc/uwsgi/apps-enabled/$APP_NAME.ini
+APP_BACKUPS=/var/backups/$APP_NAME
+APP_MEDIA=$APP_HOME/media
+APP_CTL_SCRIPT="$APP_NAME"ctl
+
+if [ "$1" = "configure" ]; then
+    if ! getent passwd "$APP_USER" >/dev/null; then
+        # adduser still recognizes usernames with leading underscores as bad name
+        # even though the current debian packaging guidelines enforces this.
+        adduser --quiet --system --group --disabled-password --force-badname \
+            --home "$APP_HOME" "$APP_USER"
+    fi
+
+    if [ -f "$APP_UWSGI_CONFIG" ]; then
+        if "$APP_CTL_SCRIPT" migrate --no-input >/dev/null; then
+            rm -f "$APP_ETC/maintenance_mode"
+        else
+            echo "error while executing $APP_USER migrations. maintenance mode still active" >&2
+        fi
+    fi
+
+    if [ -f "$APP_SETTINGS" ]; then
+      chown "$APP_USER:" "$APP_SETTINGS"
+    fi
+
+    # create secure user dirs
+    install -d -o "$APP_USER" -g nogroup -m 700 "$APP_BACKUPS"
+    install -d -o "$APP_USER" -g "$APP_USER" -m 755 "$APP_MEDIA"
+
+    "$APP_CTL_SCRIPT" collectstatic --no-input --clear
+
+    if [ -f "$APP_PID" ]; then
+        printf "reloading $APP_USER app server... "
+        kill -HUP "$(cat "$APP_PID")" 2>/dev/null && echo "ok" || echo "failed"
+    fi
+fi
+
+if [ "$1" = "triggered" ]; then
+    "$APP_CTL_SCRIPT" collectstatic --no-input --clear
+fi
+
+set +eu
+
+# dh_installdeb will replace this with shell code automatically
+# generated by other debhelper scripts.
+
+#DEBHELPER#
+
+exit 0