FTS doesn't support latest tag (erm kind of...) (#2566)

Author: enoch85

apps/fulltextsearch.sh

@@ -115,7 +115,7 @@ cat << YML_DOCKER_COMPOSE > "$FULLTEXTSEARCH_DIR/docker-compose.yaml"
 version: '3'
 services:
   elasticsearch:
-    image: docker.elastic.co/elasticsearch/elasticsearch:latest
+    image: docker.elastic.co/elasticsearch/elasticsearch:$FULLTEXTSEARCH_IMAGE_NAME_LATEST_TAG
     container_name: $FULLTEXTSEARCH_IMAGE_NAME
     restart: always
     ports:

lib.sh

@@ -177,6 +177,8 @@ fulltextsearch_install() {
     ELASTIC_USER_PASSWORD=$(gen_passwd "$SHUF" '[:lower:]')
     FULLTEXTSEARCH_IMAGE_NAME=fulltextsearch_es01
     FULLTEXTSEARCH_SERVICE=nextcloud-fulltext-elasticsearch-worker.service
+    # Supports 0-9.0-99.0-9. Max supprted version with this function is 9.99.9. When ES 10.0.0 is out we have a problem.
+    FULLTEXTSEARCH_IMAGE_NAME_LATEST_TAG="$(curl -s -m 900 https://www.docker.elastic.co/r/elasticsearch | grep -Eo "[[:digit:]]\\.[[:digit:]][[:digit:]]\\.[[:digit:]]" | sort --version-sort | tail -1)"
     # Legacy, changed 2023-09-21
     DOCKER_IMAGE_NAME=es01
     # Legacy, not used at all

nextcloud_update.sh

@@ -664,6 +664,7 @@ $DOCKER_RUN_OUTPUT"
             # Check if new name standard is set, and only update if it is (since it contains the latest tag)
             if grep -rq "$FULLTEXTSEARCH_IMAGE_NAME" "$FULLTEXTSEARCH_DIR/docker-compose.yaml"
             then
+                sed -i "s|image: docker.elastic.co/elasticsearch/elasticsearch:.*|image: docker.elastic.co/elasticsearch/elasticsearch:$FULLTEXTSEARCH_IMAGE_NAME_LATEST_TAG|g" "$FULLTEXTSEARCH_DIR/docker-compose.yaml"
                 docker-compose_update "$FULLTEXTSEARCH_IMAGE_NAME" 'Full Text Search' "$FULLTEXTSEARCH_DIR"
             else
                 print_text_in_color "$ICyan" "Full Text Search is version based, to upgrade it, please change the version in $FULLTEXTSEARCH_DIR and run 'docker compose pull && docker compose up -d'. Latest tags are here: https://www.docker.elastic.co/r/elasticsearch and release notes here: https://www.elastic.co/guide/en/elasticsearch/reference/current/release-highlights.html"