fix: fixed Angular and Spring Boot Crash on startup

security-c4po-angular/Dockerfile

@@ -7,6 +7,10 @@ WORKDIR /app
 # add `/app/node_modules/.bin` to $PATH
 ENV PATH /app/node_modules/.bin:$PATH
 
+# increase memory limit to avoid "heap out of memory"-error
+#TODO investigate on root cause for "heap out of memory"-error
+ENV NODE_OPTIONS="--max_old_space_size=4096"
+
 # install and cache app dependencies
 COPY package.json /app/package.json
 RUN npm install

security-c4po-api/Dockerfile

@@ -6,15 +6,12 @@ RUN mkdir /data
 RUN chown security-c4po-api:security-c4po-api /data
 USER security-c4po-api
 
-# GET CURRENT STAGE
-ARG STAGE
-ENV ENV_STAGE=$STAGE
-
 # COPY PACKAGE INTO IMAGE
 COPY ./build/libs/security-c4po-api-0.0.1-SNAPSHOT.jar /
 USER security-c4po-api
 EXPOSE 8443
 
-# RUN JAVA
+# WAIT FOR KEYCLOAK & RUN JAVA
+COPY ./wait-for-keycloak.sh /
 # CMD [ "java", "-jar", "security-c4po-api-0.0.1-SNAPSHOT.jar" ]
-ENTRYPOINT [ "java", "-jar", "-Dspring.profiles.active=${ENV_STAGE}", "security-c4po-api-0.0.1-SNAPSHOT.jar" ]
+ENTRYPOINT [ "./wait-for-keycloak.sh", "http://c4po-keycloak:8080/auth/realms/c4po_realm_local", "java", "-Dspring.profiles.active=${SPRING_PROFILES_ACTIVE}", "-jar", "security-c4po-api-0.0.1-SNAPSHOT.jar" ]

security-c4po-api/src/main/resources/application-COMPOSE.properties

@@ -1,7 +1,7 @@
 ## IdentityProvider (Keycloak) ##
-spring.security.oauth2.resourceserver.jwt.issuer-uri=http://c4po-keycloak:8888/auth/realms/c4po_realm_local
+spring.security.oauth2.resourceserver.jwt.issuer-uri=http://c4po-keycloak:8080/auth/realms/c4po_realm_local
 keycloakhost=c4po-keycloak
-keycloak.client.url=http://c4po-keycloak:8888
+keycloak.client.url=http://c4po-keycloak:8080
 keycloak.client.realm.path=auth/realms/c4po_realm_local/
 
 ## Database (MONGODB) Config ##

security-c4po-api/wait-for-keycloak.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+# wait-for-keycloak.sh
+
+set -e
+
+host="$1"
+shift
+
+printf 'Waiting for keycloak...'
+until $(curl --output /dev/null --silent --head --fail $host); do
+    printf '.'
+    sleep 4
+done
+
+printf '\nKeycloak is up and running - Starting C4PO API'
+
+exec "$@"