Add development reverse proxy

.gitignore

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+*.log
 /__debug*
 /oran-o2ims

proxy.sh

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+#!/bin/bash
+#
+# Copyright (c) 2023 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+# in compliance with the License. You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software distributed under the License
+# is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+# or implied. See the License for the specific language governing permissions and limitations under
+# the License.
+#
+
+# This script starts the servers and the reverse proxy in the local machine. It is intended for
+# use in the development environment, where it is convenient to run the servers locally in order
+# to debug them. Stop it with Ctr+C, and it will kill the servers.
+
+# Stop the servers when finished:
+function clean {
+  kill -9 ${pids}
+}
+trap clean EXIT
+
+# Start the metadata server:
+./oran-o2ims start metadata-server \
+--log-file="servers.log" \
+--log-level="debug" \
+--log-field="server=metadata" \
+--log-field="pid=%p" \
+--api-listener-address="127.0.0.1:8000" \
+--cloud-id="123" \
+&
+pids="${pids} $!"
+
+# Start the deployment manager server:
+./oran-o2ims start deployment-manager-server \
+--log-file="servers.log" \
+--log-level="debug" \
+--log-field="server=deployment-manager" \
+--log-field="pid=%p" \
+--api-listener-address="127.0.0.1:8001" \
+--cloud-id="123" \
+--backend-url="${BACKEND_URL}" \
+--backend-token="${BACKEND_TOKEN}" \
+&
+pids="${pids} $!"
+
+# Start the reverse proxy:
+podman run \
+--rm \
+--network="host" \
+--volume="${PWD}/proxy.yaml:/etc/proxy.yaml:z" \
+--entrypoint="/usr/local/bin/envoy" \
+docker.io/envoyproxy/envoy:v1.28.0 \
+--config-path "/etc/proxy.yaml"

proxy.yaml

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+#
+# Copyright (c) 2023 Red Hat, Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+# in compliance with the License. You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software distributed under the License
+# is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+# or implied. See the License for the specific language governing permissions and limitations under
+# the License.
+#
+
+# This is an example Envoy configuration that redirects requests to the servers, so that they
+# appear to be a single server. It is intended for use in development environments, together
+# with the 'proxy.sh' script.
+
+admin:
+  access_log_path: /dev/null
+  address:
+    socket_address:
+      address: 127.0.0.1
+      port_value: 9001
+
+static_resources:
+
+  clusters:
+
+  - name: metadata-server
+    connect_timeout: 1s
+    type: STRICT_DNS
+    lb_policy: ROUND_ROBIN
+    load_assignment:
+      cluster_name: metadata-server
+      endpoints:
+      - lb_endpoints:
+        - endpoint:
+            address:
+              socket_address:
+                address: 127.0.0.1
+                port_value: 8000
+
+  - name: deployment-manager-server
+    connect_timeout: 1s
+    type: STRICT_DNS
+    lb_policy: ROUND_ROBIN
+    load_assignment:
+      cluster_name: deployment-manager-server
+      endpoints:
+      - lb_endpoints:
+        - endpoint:
+            address:
+              socket_address:
+                address: 127.0.0.1
+                port_value: 8001
+
+  listeners:
+
+  - name: ingress
+    address:
+      socket_address:
+        address: 0.0.0.0
+        port_value: 9000
+    filter_chains:
+      filters:
+      - name: envoy.filters.network.http_connection_manager
+        typed_config:
+          "@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
+          access_log:
+          - name: envoy.access_loggers.file
+            typed_config:
+              "@type": type.googleapis.com/envoy.extensions.access_loggers.file.v3.FileAccessLog
+              path: /dev/stdout
+          stat_prefix: ingress
+          http_filters:
+          - name: envoy.filters.http.router
+            typed_config:
+              "@type": type.googleapis.com/envoy.extensions.filters.http.router.v3.Router
+          route_config:
+            name: ingress
+            virtual_hosts:
+            - name: all
+              domains:
+              - "*"
+              routes:
+
+              # Requests for the deployment manager server:
+              - name: deployment-manager
+                match:
+                  prefix: /O2ims_infrastructureInventory/v1/deploymentManagers
+                route:
+                  cluster: deployment-manager-server
+                  timeout: 300s
+
+              # Everything else goes to the metadata server, which will respond with 404 to most
+              # requests:
+              - name: metadata
+                match:
+                  prefix: /
+                route:
+                  cluster: metadata-server
+                  timeout: 300s