improve multicluster support

When the `docker-compose up -d ceph --scale ceph2=1` cmd is run, the
first and second deployment consequently tries to run the npm ci which
deletes the node_modules/ and breaks the dashboard if the path provided
for both cluster is the same.

This PR is an approach that tries to address that issue. The only issue
with this approach is that the dev server will not work properly for the
second cluster if the path is same. Otherwise everything is good.

Signed-off-by: Nizamudeen A <nia@redhat.com>

Author: nizamial09

docker-compose.yml

@@ -14,6 +14,7 @@ services:
             - CEPH_DEBUG=${CEPH_DEBUG:-0}
             - CEPH_PORT
             - CEPH_REPO_DIR
+            - CEPH2_REPO_DIR
             - CHECK_MYPY=${CHECK_MYPY:-0}
             - CYPRESS_CACHE_FOLDER=/ceph/build.cypress
             - DASHBOARD_DEV_SERVER=${DASHBOARD_DEV_SERVER:-1}
@@ -67,6 +68,8 @@ services:
         image: ${CEPH2_IMAGE:-rhcsdashboard/ceph-rpm:main}
         container_name: ceph2
         hostname: ceph2
+        command:
+            - '-ceph2'
         ports: ['${CEPH2_PROXY_HOST_PORT:-4202}:4200','${CEPH2_HOST_PORT:-11002}:11000']
         volumes:
             - ${CEPH2_REPO_DIR}:/ceph

docker/ceph/entrypoint.sh

@@ -18,6 +18,12 @@ export_var CEPH_OUT_DIR=/ceph/build."${HOSTNAME}"/out
 export_var CEPH_PORT="${CEPH_PORT:-10000}"
 
 rm -rf /ceph/build
+
+if [[ "$@" == *"ceph2"* ]]; then
+    export_var CEPH_MULTICLUSTER="1"
+    set -- "/docker/start.sh"
+fi
+
 mkdir -p "${CEPH_CONF_PATH}"
 
 if [[ "${IS_CEPH_RPM}" == 1 ]]; then

docker/ceph/start-ceph.sh

@@ -18,15 +18,30 @@ if [[ "$FRONTEND_BUILD_REQUIRED" == 1 ]]; then
         npm update @angular/cli
     fi
 
-    npm ci
+    if [[ "$CEPH_MULTICLUSTER" != '1' ]]; then
+        npm ci
+    fi
 
-    if [[ -z "${DASHBOARD_URL}" ]]; then
+    if [[ -z "${DASHBOARD_URL}" &&  "$CEPH_MULTICLUSTER" != '1' ]]; then
         # Required to run dashboard python module.
         npm run build
     fi
 
+    if [[ "$CEPH_MULTICLUSTER" == '1' ]]; then
+        if [[ "$CEPH_REPO_DIR" != "$CEPH2_REPO_DIR" ]]; then
+            npm ci
+            npm run build
+            # Start dev server.
+            npm run start &
+        else
+            # Wait until the npm is finished for first cluster
+            echo "Waiting for npm to finish..."
+            sleep 180
+        fi
+    fi
+
     # Start dev server
-    if [[ "$DASHBOARD_DEV_SERVER" == 1 || -n "${DASHBOARD_URL}" ]]; then
+    if [[ "$DASHBOARD_DEV_SERVER" == 1 || -n "${DASHBOARD_URL}" && "$CEPH_MULTICLUSTER" != '1' ]]; then
         npm run start &
     elif [[ -z "${E2E_CMD}" ]]; then
         npm run build -- ${FRONTEND_BUILD_OPTIONS} --watch &