1 files changed, 77 insertions, 0 deletions
diff --git a/roles/apps/nextcloud/instance/templates/upgrade.sh.j2 b/roles/apps/nextcloud/instance/templates/upgrade.sh.j2
new file mode 100644
index 00000000..62f6641e
--- /dev/null
+++ b/roles/apps/nextcloud/instance/templates/upgrade.sh.j2
@@ -0,0 +1,77 @@
+#!/bin/bash
+
+set -e
+
+if [ -z "$1" ] || [ -z "$2" ] || [ -z "$3" ]; then
+  echo "Usage: $0 (preapre|finalize) <old-version> <new-version>"
+  exit 1
+fi
+
+COMMAND="$1"
+OLD_VERSION="$2"
+NEW_VERSION="$3"
+POD_NAME="{{ nextcloud_instance }}-$(hostname)"
+
+maintenance_mode() {
+  POD_ID=$(crictl pods --name "$POD_NAME" --state ready -q)
+  CONTAINER_ID=$(crictl ps --pod "$POD_ID" --name nextcloud -q)
+  crictl exec "$CONTAINER_ID" php -f /var/www/html/occ maintenance:mode "$1"
+}
+
+wait_for_cronjobs() {
+  POD_ID=$(crictl pods --name "$POD_NAME" --state ready -q)
+  CONTAINER_ID=$(crictl ps --pod "$POD_ID" --name nextcloud -q)
+  crictl exec "$CONTAINER_ID" bash -c 'echo -n "waiting for running cron script "; while [ -n "$(pgrep -a php | grep cron.php)" ]; do echo -n "."; sleep 1; done; echo ""'
+}
+
+wait_for_upgrade_complete() {
+  NEW_VERSION="$1"
+
+  set +e
+  echo -n "waiting for new version to be ready "
+  while true; do
+    POD_ID=$(crictl pods --name "$POD_NAME" --state ready -q)
+    if [ -z $POD_ID ]; then continue; fi
+    CONTAINER_ID=$(crictl ps --pod "$POD_ID" --name nextcloud -q)
+    if [ -z $CONTAINER_ID ]; then continue; fi
+    STATUS_OUTPUT=$(crictl exec "$CONTAINER_ID" php -f /var/www/html/occ status -n --no-warnings --output plain)
+    if [ $? -eq 0 ]; then
+      RUNNING_VERSION=$(echo "$STATUS_OUTPUT" | awk -F : '/versionstring/ { print($2) }' | tr -d ' ')
+      if [ "$RUNNING_VERSION" = "$NEW_VERSION" ]; then
+        break
+      fi
+      echo -n "."
+    fi
+    sleep 1
+  done
+  echo ""
+  set -e
+  crictl exec "$CONTAINER_ID" bash -c 'echo -n "waiting for apache to start "; while [ -z "$(pgrep apache2)" ]; do echo -n "."; sleep 1; done; echo ""'
+}
+
+storage_snapshot() {
+  OLD_VERSION="$1"
+  NEW_VERSION="$2"
+
+{% if nextcloud_instances[nextcloud_instance].storage.type == 'zfs' %}
+  ZFS_VOLUME=$(findmnt -no source -T "{{ nextcloud_instance_basepath }}")
+  echo "creating snapshot for zfs volume: $ZFS_VOLUME"
+  zfs snapshot "$ZFS_VOLUME@upgrade_$OLD_VERSION-to-$NEW_VERSION""_$(date '+%Y-%m-%m_%H:%M:%S')"
+{% endif %}
+}
+
+case "$COMMAND" in
+  prepare)
+    maintenance_mode --on
+    wait_for_cronjobs
+    storage_snapshot "$OLD_VERSION" "$NEW_VERSION"
+    ;;
+  finalize)
+    wait_for_upgrade_complete "$NEW_VERSION"
+    maintenance_mode --off
+    ;;
+  *)
+    echo "unknown command: $COMMAND, must be prepare or finalize"
+    exit 1
+    ;;
+esac