Implement a basic healthcheck

seafile-client/Dockerfile

@@ -66,6 +66,7 @@ RUN apt-get update && apt-get install -y gnupg && \
 
 # Copy over the entrypoints, healthchecks and tests.
 COPY docker-entrypoint.sh /entrypoint.sh
+COPY docker-healthcheck.sh /healthcheck.sh
 COPY seafile-healthcheck.sh /home/seafuser/healthcheck.sh
 COPY seafile-entrypoint.sh /home/seafuser/entrypoint.sh
 COPY tests /tests
@@ -73,3 +74,4 @@ COPY tests /tests
 # Set bash as the entrypoint and run the entrypoint script from that.
 ENTRYPOINT ["/bin/bash"]
 CMD ["/entrypoint.sh"]
+HEALTHCHECK --interval=5m --start-period=20s --retries=1 CMD ["su", "-", "${UNAME}", "-c", "/healthcheck.sh"]

seafile-client/docker-healthcheck.sh

@@ -0,0 +1,28 @@
+#!/bin/bash
+
+# Docker Seafile client, help you mount a Seafile library as a volume.
+# Copyright (C) 2019-2020, flow.gunso@gmail.com
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# Grab the status of the active repos then return as healthy/unhealthy
+# depending the healthy statuses.
+
+healthy_statuses=("downloading" "waiting for sync", "uploading", "downloading files", "downloading file list")
+while IFS=$'\t' read -r name status; do
+    for healthy_status in "${healthy_statuses[@]}"; do
+        if [[ "$status" == "$healthy" ]]; then exit 0; fi
+    done
+    exit 1
+done < <(seaf-cli status | grep -v "^#")