make gitea/Jenkinsfile declarative

dockerfiles/services/gitea/Jenkinsfile

@@ -1,30 +1,47 @@
-node('docker') {
-    def workdir = 'dockerfiles/services/gitea'
-
+pipeline {
+    agent { label 'docker' }
+    options {
+        buildDiscarder(logRotator(numToKeepStr: '2'))
+    }
+    triggers {
+        cron('@weekly')
+    }
+    stages {
         stage('prepare') {
-        git credentialsId: 'f1f58215-c789-44a2-9b72-50e4425cb061', url: 'ssh://git@git.xai-corp.net:10022/xai-corp.net/provisioning.git'
+            steps {
+                checkout scm
                 sh 'ls'
             }
+        }
 
         stage('build') {
+            steps {
                 dir(workdir) {
-            sh "DOCKER_HOST=dkhost:2376 docker-compose -f docker-compose.yml pull"
+                    sh "DOCKER_HOST=${docker_host} docker-compose -f docker-compose.yml pull"
+                }
             }
         }
 
         stage('deploy') {
+            steps {
                 dir(workdir) {
                     sh """
+                        export DOCKER_HOST=${docker_host}
                         docker stack deploy --with-registry-auth --prune -c docker-compose.yml gitea
-                docker service update gitea_app
+                        ../scaleout.sh gitea_app 180
                     """
                 }
             }
+        }
 
         stage('smoke tests') {
+            steps {
                 dir(workdir) {
                     sleep 60
                     sh "curl -If http://dkhost:10080"
                 }
             }
         }
+
+    }
+}

dockerfiles/services/scaleout.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+REPLICA_COUNT=`docker service inspect $1 | jq '.[0].Spec.Mode.Replicated.Replicas'`
+./timeout.sh -t $2 docker service scale $1=$(($REPLICA_COUNT*2))
+./timeout.sh -t $2 docker service scale $1=$(($REPLICA_COUNT))
+docker service update -q $1