Added CUE endpoint bridge

- An optional backend bridge option has been added to the CUE profile to
  support the new bridge endpoint.
- If set, the generated `backend.yml` file gets an entry like:
  cue:
    backend:
      bridge: http://bridge.example.com

usr/local/src/unit-tests/ece-install-conf-file-reader-test.sh

@@ -387,6 +387,7 @@ test_can_parse_yaml_conf_cue() {
   local cue_backend_ece=http://ece.example.com
   local cue_backend_ece_local=http://localhost:8080
   local cue_backend_ng=http://ng.example.com
+  local cue_backend_bridge=http://bridge.example.com
   local cue_cors_origin1=editor.example.com
   local cue_cors_origin2=cue.example.com
 
@@ -400,6 +401,7 @@ profiles:
     backend_ece: ${cue_backend_ece}
     backend_ece_local: ${cue_backend_ece_local}
     backend_ng: ${cue_backend_ng}
+    backend_bridge: ${cue_backend_bridge}
     cors_origins:
       - ${cue_cors_origin1}
       - ${cue_cors_origin2}
@@ -409,6 +411,7 @@ EOF
   unset fai_cue_backend_ece
   unset fai_cue_backend_ece_local
   unset fai_cue_backend_ng
+  unset fai_cue_backend_bridge
   unset fai_cue_cors_origins
 
   parse_yaml_conf_file_or_source_if_sh_conf "${yaml_file}"
@@ -417,6 +420,7 @@ EOF
   assertEquals "fai_cue_backend_ece" "${cue_backend_ece}" "${fai_cue_backend_ece}"
   assertEquals "fai_cue_backend_ece_local" "${cue_backend_ece_local}" "${fai_cue_backend_ece_local}"
   assertEquals "fai_cue_backend_ng" "${cue_backend_ng}" "${fai_cue_backend_ng}"
+  assertEquals "fai_cue_backend_bridge" "${cue_backend_bridge}" "${fai_cue_backend_bridge}"
   assertEquals "fai_cue_cors_origins" "${cue_cors_origin1} ${cue_cors_origin2}" "${fai_cue_cors_origins}"
 
   rm -rf "${yaml_file}"

usr/share/doc/escenic/ece-install-conf-reference.org

@@ -196,6 +196,7 @@ profiles:
     backend_ece: ${cue_backend_ece}
     backend_ece_local: ${cue_backend_ece_local}
     backend_ng: ${cue_backend_ng}
+    backend_bridge: ${cue_backend_bridge}
     cors_origins:
       - ${cue_cors_origin1}
       - ${cue_cors_origin2}
@@ -207,6 +208,7 @@ fai_cue_install=
 fai_cue_backend_ece=
 fai_cue_backend_ece_local=
 fai_cue_backend_ng=
+fai_cue_backend_bridge=
 fai_cue_cors_origins=
 
 #+end_src

usr/share/escenic/ece-scripts/ece-install.d/conf-file-reader.sh

@@ -888,6 +888,12 @@ _parse_yaml_conf_file_cue() {
     export fai_cue_backend_ng=${install_cue_backend_ng}
   fi
 
+  local install_cue_backend_bridge=
+  install_cue_backend_bridge=$(_jq "${yaml_file}" .profiles.cue.backend_bridge)
+  if [ -n "${install_cue_backend_bridge}" ]; then
+    export fai_cue_backend_bridge=${install_cue_backend_bridge}
+  fi
+
   local count=0
   count=$(_jq "${yaml_file}" ".profiles.cue.cors_origins | length")
   for ((i = 0; i < count; i++)); do

usr/share/escenic/ece-scripts/ece-install.d/cue.sh

@@ -158,6 +158,10 @@ EOF
       if [ -n "${fai_cue_backend_ng}" ]; then
         echo "  newsgate: ${fai_cue_backend_ng}" >> "${file}"
       fi
+
+      if [ -n "${fai_cue_backend_bridge}" ]; then
+        echo "  bridge: ${fai_cue_backend_bridge}" >> "${file}"
+      fi
     done
 
   if [ "${on_debian_or_derivative-0}" -eq 1 ]; then