Replace sql connection with database

This is a required upgrade step for 5.0.

Change-Id: If278c830e28c0ce7dec69e8bde0e3fe4148aaff1
diff --git a/k8s/zuul.yaml b/k8s/zuul.yaml
index 38e1af3..1536c14 100644
--- a/k8s/zuul.yaml
+++ b/k8s/zuul.yaml
@@ -125,7 +125,7 @@
     spec:
       containers:
       - name: merger
-        image: zuul/zuul-merger:latest
+        image: zuul/zuul-merger:4.10.4
         volumeMounts:
         - name: zuul-config
           mountPath: /etc/zuul
@@ -168,7 +168,7 @@
     spec:
       containers:
       - name: web
-        image: zuul/zuul-web:latest
+        image: zuul/zuul-web:4.10.4
         ports:
         - name: zuul-web
           containerPort: 9000
@@ -218,7 +218,7 @@
         runAsGroup: 10001
       containers:
       - name: executor
-        image: zuul/zuul-executor:latest
+        image: zuul/zuul-executor:4.10.4
         ports:
         - name: logs
           containerPort: 7900
@@ -282,7 +282,7 @@
     spec:
       containers:
       - name: scheduler
-        image: zuul/zuul-scheduler:latest
+        image: zuul/zuul-scheduler:4.10.4
         ports:
         - name: gearman
           containerPort: 4730
diff --git a/zuul/zuul.conf b/zuul/zuul.conf
index 7877e96..2f696b2 100644
--- a/zuul/zuul.conf
+++ b/zuul/zuul.conf
@@ -28,9 +28,7 @@
 trusted_ro_paths=/authdaemon/token
 disk_limit_per_job=1000
 
-[connection "sql"]
-name=sql
-driver=sql
+[database]
 dburi=mysql+pymysql://zuul:{{ zuul_deploy.db_password }}@mariadb-mariadb.mariadb/zuul
 
 [connection "opendev"]