Support optional Redis sessions and heap dumps

Dockerfile

@@ -27,13 +27,16 @@ ENV TZ=Asia/Seoul \
 -XX:+UnlockExperimentalVMOptions \
 -XX:+UseStringDeduplication \
 -XX:+HeapDumpOnOutOfMemoryError \
--XX:HeapDumpPath=/tmp \
+-XX:HeapDumpPath=/heapdumps \
+-XX:+ExitOnOutOfMemoryError \
 -XX:+DisableExplicitGC \
 -javaagent:/opt/opentelemetry-javaagent.jar"
 
 # 타임존 설정
 RUN ln -sf /usr/share/zoneinfo/Asia/Seoul /etc/localtime
 
+RUN mkdir -p /heapdumps && chown -R 1000:1000 /heapdumps
+
 # OTEL 에이전트 복사
 COPY --from=otel /opentelemetry-javaagent.jar /opt/opentelemetry-javaagent.jar
 RUN chown 1000:1000 /opt/opentelemetry-javaagent.jar

Jenkinsfile

@@ -162,6 +162,10 @@ spec:
               done
             fi
 
+            if [ "${TARGET_ENV}" = "dev" ]; then
+              kubectl -n ${APP_NS} patch deploy ${DEPLOY} --type=strategic -p '{"spec":{"template":{"spec":{"containers":[{"name":"'${DEPLOY}'","env":[{"name":"SPRING_PROFILES_ACTIVE","value":"redis-session"}],"volumeMounts":[{"name":"heapdumps","mountPath":"/heapdumps"}]}],"volumes":[{"name":"heapdumps","nfs":{"server":"192.168.0.120","path":"/volume2/NFS/helpdesk-dev/heapdumps"}}]}}}}'
+            fi
+
             kubectl -n ${APP_NS} set image deploy/${DEPLOY} ${DEPLOY}=${REG}/${IMAGE}:${IMAGE_TAG}
 
             if [ "${IS_SESSION_JOB}" = "true" ]; then

src/main/java/egovframework/main/web/OptionalSpringSessionFilter.java

@@ -0,0 +1,89 @@
+package egovframework.main.web;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.Properties;
+
+import javax.servlet.Filter;
+import javax.servlet.FilterChain;
+import javax.servlet.FilterConfig;
+import javax.servlet.ServletContext;
+import javax.servlet.ServletException;
+import javax.servlet.ServletRequest;
+import javax.servlet.ServletResponse;
+
+import org.springframework.web.context.WebApplicationContext;
+import org.springframework.web.context.support.WebApplicationContextUtils;
+
+public class OptionalSpringSessionFilter implements Filter {
+
+    private static final String PROPERTIES_PATH = "egovframework/egovProps/globals.properties";
+    private static final String ENABLED_KEY = "Session.Redis.Enabled";
+    private static final String TARGET_BEAN_NAME = "springSessionRepositoryFilter";
+
+    private ServletContext servletContext;
+    private boolean enabled;
+    private volatile Filter delegate;
+
+    @Override
+    public void init(FilterConfig filterConfig) throws ServletException {
+        this.servletContext = filterConfig.getServletContext();
+        this.enabled = Boolean.parseBoolean(loadProperty(ENABLED_KEY, "false"));
+        if (this.enabled) {
+            this.servletContext.log("Spring Session Redis filter is enabled.");
+        } else {
+            this.servletContext.log("Spring Session Redis filter is disabled.");
+        }
+    }
+
+    @Override
+    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
+            throws IOException, ServletException {
+        if (!this.enabled) {
+            chain.doFilter(request, response);
+            return;
+        }
+        getDelegate().doFilter(request, response, chain);
+    }
+
+    @Override
+    public void destroy() {
+        this.delegate = null;
+    }
+
+    private Filter getDelegate() throws ServletException {
+        Filter current = this.delegate;
+        if (current != null) {
+            return current;
+        }
+        synchronized (this) {
+            current = this.delegate;
+            if (current == null) {
+                WebApplicationContext context = WebApplicationContextUtils.getRequiredWebApplicationContext(this.servletContext);
+                current = context.getBean(TARGET_BEAN_NAME, Filter.class);
+                this.delegate = current;
+            }
+            return current;
+        }
+    }
+
+    private String loadProperty(String key, String defaultValue) {
+        InputStream input = Thread.currentThread().getContextClassLoader().getResourceAsStream(PROPERTIES_PATH);
+        if (input == null) {
+            return defaultValue;
+        }
+        try {
+            Properties properties = new Properties();
+            properties.load(input);
+            return properties.getProperty(key, defaultValue).trim();
+        } catch (IOException e) {
+            this.servletContext.log("Failed to load " + PROPERTIES_PATH + ". Using default for " + key + ".", e);
+            return defaultValue;
+        } finally {
+            try {
+                input.close();
+            } catch (IOException ignored) {
+            }
+        }
+    }
+}

src/main/resources/egovframework/egovProps/globals-dev.properties

@@ -154,6 +154,7 @@ ldap.username =uid=admin,ou=system
 ldap.password =secret
 
 # Spring Session Redis
+Session.Redis.Enabled=true
 Session.Redis.Host=sayit-helpdesk-session-redis
 Session.Redis.Port=6379
 Session.Redis.Database=0

src/main/resources/egovframework/egovProps/globals-prod.properties

@@ -152,6 +152,7 @@ ldap.username =uid=admin,ou=system
 ldap.password =secret
 
 # Spring Session Redis
+Session.Redis.Enabled=true
 Session.Redis.Host=sayit-helpdesk-session-redis
 Session.Redis.Port=6379
 Session.Redis.Database=0

src/main/resources/egovframework/egovProps/globals-stage.properties

@@ -147,6 +147,7 @@ ldap.username =uid=admin,ou=system
 ldap.password =secret
 
 # Spring Session Redis
+Session.Redis.Enabled=true
 Session.Redis.Host=sayit-helpdesk-session-redis
 Session.Redis.Port=6379
 Session.Redis.Database=0

src/main/resources/egovframework/egovProps/globals.properties

@@ -152,3 +152,6 @@ ldap.url =ldap://localhost:10389
 ldap.rootDn =c=kr
 ldap.username =uid=admin,ou=system
 ldap.password =secret
+
+# Spring Session Redis
+Session.Redis.Enabled=false

src/main/resources/egovframework/spring/com/context-session.xml

@@ -8,6 +8,7 @@
            http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
            http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd">
 
+    <beans profile="redis-session">
     <context:annotation-config/>
 
     <util:constant id="redisFlushModeOnSave"
@@ -35,4 +36,5 @@
         <property name="cookiePath" value="/"/>
         <property name="useHttpOnlyCookie" value="true"/>
     </bean>
+    </beans>
 </beans>

src/main/webapp/WEB-INF/web.xml

@@ -3,7 +3,7 @@
   <display-name>Default</display-name>
   <filter>
     <filter-name>springSessionRepositoryFilter</filter-name>
-    <filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
+    <filter-class>egovframework.main.web.OptionalSpringSessionFilter</filter-class>
   </filter>
   <filter-mapping>
     <filter-name>springSessionRepositoryFilter</filter-name>