Remove vestigial clickhouse.enabled flag

ClickHouse is the only storage backend — there is no alternative.
The enabled flag created a false sense of optionality: setting it to
false would crash on startup because most beans unconditionally depend
on the ClickHouse JdbcTemplate.

Remove all @ConditionalOnProperty annotations gating ClickHouse beans,
the enabled property from application.yml, and the K8s manifest entry.
Also fix old property names in AbstractPostgresIT test config.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

cameleer3-server-app/src/main/java/com/cameleer3/server/app/config/ClickHouseConfig.java

@@ -2,7 +2,6 @@ package com.cameleer3.server.app.config;
 
 import com.zaxxer.hikari.HikariDataSource;
 import org.springframework.beans.factory.annotation.Qualifier;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
 import org.springframework.context.annotation.Bean;
@@ -14,7 +13,6 @@ import javax.sql.DataSource;
 
 @Configuration
 @EnableConfigurationProperties(ClickHouseProperties.class)
-@ConditionalOnProperty(name = "cameleer.server.clickhouse.enabled", havingValue = "true")
 public class ClickHouseConfig {
 
     /**

cameleer3-server-app/src/main/java/com/cameleer3/server/app/config/ClickHouseSchemaInitializer.java

@@ -3,7 +3,6 @@ package com.cameleer3.server.app.config;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Qualifier;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.context.event.ApplicationReadyEvent;
 import org.springframework.context.event.EventListener;
 import org.springframework.core.io.Resource;
@@ -14,7 +13,6 @@ import org.springframework.stereotype.Component;
 import java.nio.charset.StandardCharsets;
 
 @Component
-@ConditionalOnProperty(name = "cameleer.server.clickhouse.enabled", havingValue = "true")
 public class ClickHouseSchemaInitializer {
 
     private static final Logger log = LoggerFactory.getLogger(ClickHouseSchemaInitializer.class);

cameleer3-server-app/src/main/java/com/cameleer3/server/app/config/IngestionBeanConfig.java

@@ -5,14 +5,13 @@ import com.cameleer3.server.core.ingestion.ChunkAccumulator;
 import com.cameleer3.server.core.ingestion.MergedExecution;
 import com.cameleer3.server.core.ingestion.WriteBuffer;
 import com.cameleer3.server.core.storage.model.MetricsSnapshot;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
 /**
- * Creates the write buffer bean for metrics.
+ * Creates write buffer beans for the ingestion pipeline.
  * <p>
- * The {@link WriteBuffer} instance is shared between the
+ * Each {@link WriteBuffer} instance is shared between the
  * {@link com.cameleer3.server.core.ingestion.IngestionService} (producer side)
  * and the flush scheduler (consumer side).
  */
@@ -25,19 +24,16 @@ public class IngestionBeanConfig {
     }
 
     @Bean
-    @ConditionalOnProperty(name = "cameleer.server.clickhouse.enabled", havingValue = "true")
     public WriteBuffer<MergedExecution> executionBuffer(IngestionConfig config) {
         return new WriteBuffer<>(config.getBufferCapacity());
     }
 
     @Bean
-    @ConditionalOnProperty(name = "cameleer.server.clickhouse.enabled", havingValue = "true")
     public WriteBuffer<ChunkAccumulator.ProcessorBatch> processorBatchBuffer(IngestionConfig config) {
         return new WriteBuffer<>(config.getBufferCapacity());
     }
 
     @Bean
-    @ConditionalOnProperty(name = "cameleer.server.clickhouse.enabled", havingValue = "true")
     public WriteBuffer<BufferedLogEntry> logBuffer(IngestionConfig config) {
         return new WriteBuffer<>(config.getBufferCapacity());
     }

cameleer3-server-app/src/main/java/com/cameleer3/server/app/config/StorageBeanConfig.java

@@ -28,7 +28,6 @@ import com.cameleer3.server.core.storage.StatsStore;
 import com.cameleer3.server.core.storage.model.MetricsSnapshot;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.beans.factory.annotation.Value;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.jdbc.core.JdbcTemplate;
@@ -165,7 +164,6 @@ public class StorageBeanConfig {
     // ── Usage Analytics ──────────────────────────────────────────────
 
     @Bean
-    @ConditionalOnProperty(name = "cameleer.server.clickhouse.enabled", havingValue = "true")
     public ClickHouseUsageTracker clickHouseUsageTracker(
             TenantProperties tenantProperties,
             @Qualifier("clickHouseJdbcTemplate") JdbcTemplate clickHouseJdbc) {
@@ -174,14 +172,12 @@ public class StorageBeanConfig {
     }
 
     @Bean
-    @ConditionalOnProperty(name = "cameleer.server.clickhouse.enabled", havingValue = "true")
     public com.cameleer3.server.app.analytics.UsageTrackingInterceptor usageTrackingInterceptor(
             ClickHouseUsageTracker usageTracker) {
         return new com.cameleer3.server.app.analytics.UsageTrackingInterceptor(usageTracker);
     }
 
     @Bean
-    @ConditionalOnProperty(name = "cameleer.server.clickhouse.enabled", havingValue = "true")
     public com.cameleer3.server.app.analytics.UsageFlushScheduler usageFlushScheduler(
             ClickHouseUsageTracker usageTracker) {
         return new com.cameleer3.server.app.analytics.UsageFlushScheduler(usageTracker);

cameleer3-server-app/src/main/java/com/cameleer3/server/app/controller/ChunkIngestionController.java

@@ -23,8 +23,7 @@ import java.util.List;
  * Ingestion endpoint for execution chunk data (ClickHouse pipeline).
  * <p>
  * Accepts single or array {@link ExecutionChunk} payloads and feeds them
- * into the {@link ChunkAccumulator}. Only active when
+ * into the {@link ChunkAccumulator}.
- * {@code clickhouse.enabled=true} (conditional on the accumulator bean).
  */
 @RestController
 @RequestMapping("/api/v1/data")

cameleer3-server-app/src/main/resources/application.yml

@@ -75,7 +75,6 @@ cameleer:
       oidctlsskipverify: ${CAMELEER_SERVER_SECURITY_OIDCTLSSKIPVERIFY:false}
       corsallowedorigins: ${CAMELEER_SERVER_SECURITY_CORSALLOWEDORIGINS:}
     clickhouse:
-      enabled: ${CAMELEER_SERVER_CLICKHOUSE_ENABLED:true}
       url: ${CAMELEER_SERVER_CLICKHOUSE_URL:jdbc:clickhouse://localhost:8123/cameleer}
       username: ${CAMELEER_SERVER_CLICKHOUSE_USERNAME:default}
       password: ${CAMELEER_SERVER_CLICKHOUSE_PASSWORD:}

cameleer3-server-app/src/test/java/com/cameleer3/server/app/AbstractPostgresIT.java

@@ -41,9 +41,8 @@ public abstract class AbstractPostgresIT {
         registry.add("spring.flyway.url", postgres::getJdbcUrl);
         registry.add("spring.flyway.user", postgres::getUsername);
         registry.add("spring.flyway.password", postgres::getPassword);
-        registry.add("clickhouse.enabled", () -> "true");
+        registry.add("cameleer.server.clickhouse.url", clickhouse::getJdbcUrl);
-        registry.add("clickhouse.url", clickhouse::getJdbcUrl);
+        registry.add("cameleer.server.clickhouse.username", clickhouse::getUsername);
-        registry.add("clickhouse.username", clickhouse::getUsername);
+        registry.add("cameleer.server.clickhouse.password", clickhouse::getPassword);
-        registry.add("clickhouse.password", clickhouse::getPassword);
     }
 }

deploy/base/server.yaml

@@ -70,8 +70,6 @@ spec:
                   name: cameleer-auth
                   key: CAMELEER_SERVER_SECURITY_JWTSECRET
                   optional: true
-            - name: CAMELEER_SERVER_CLICKHOUSE_ENABLED
-              value: "true"
             - name: CAMELEER_SERVER_CLICKHOUSE_URL
               value: "jdbc:clickhouse://clickhouse.cameleer.svc.cluster.local:8123/cameleer"
             - name: CAMELEER_SERVER_CLICKHOUSE_USERNAME