THREESCALE-8006 fix(oidc): set request timeout for OIDC query

[tkan145]

What

Fix https://redhat.atlassian.net/browse/THREESCALE-8006

Verification steps

• Checkout this branch
• Build new runtime image

make runtime-image IMAGE_NAME=apicast-test 

• Get inside dev-env

cd dev-environments/keycloak-env/

• Modify docker-compose.yml as follow

diff --git a/dev-environments/keycloak-env/docker-compose.yml b/dev-environments/keycloak-env/docker-compose.yml
index 3af7e33f..7083fc81 100644
--- a/dev-environments/keycloak-env/docker-compose.yml
+++ b/dev-environments/keycloak-env/docker-compose.yml
@@ -9,13 +9,15 @@ services:
     - example.com
     - two.upstream
     - keycloak
+    - keycloak.upstream
     environment:
       THREESCALE_CONFIG_FILE: /tmp/config.json
       THREESCALE_DEPLOYMENT_ENV: staging
-      APICAST_CONFIGURATION_LOADER: lazy
+      APICAST_CONFIGURATION_LOADER: boot
       APICAST_WORKERS: 1
       APICAST_LOG_LEVEL: debug
-      APICAST_CONFIGURATION_CACHE: "0"
+      APICAST_CONFIGURATION_CACHE: "300"
     expose:
       - "8080"
       - "8090"
@@ -36,8 +38,19 @@ services:
     expose:
       - "8080"
   keycloak:
-    image: quay.io/keycloak/keycloak:23.0.4
+    image: quay.io/openshift-logging/alpine-socat:1.8.0.0
     container_name: keycloak
+    command:
+      - "-d"
+      - "-v"
+      - "-d"
+      - "TCP-LISTEN:8080,reuseaddr,fork"
+      - 'SYSTEM:sleep 30 && exec socat - TCP\:keycloak.upstream\:8080'
+    expose:
+      - "8080"
+    restart: unless-stopped
+  keycloak.upstream:
+    image: quay.io/keycloak/keycloak:23.0.4
     command: "start-dev"
     expose:
       - "8080"

• Start the gateway

make gateway IMAGE_NAME=apicast-test

You should see the gateway hang for 5s then start as normal

• Stop the gateway

CTRL-L

• Add APICAST_OIDC_CONNECT_TIMEOUT: "20" to docker-compose file
• Start the gateway again, this time it should wait for 20s