build and push docker image in one step

Jenkinsfile

@@ -67,18 +67,16 @@ pipeline {
                 script {
                     sh script: 'git clean -ffdx', label: 'Clean repository'
 
-                    def version = sh(script: 'git describe --tags --always --match "Release_*" HEAD', returnStdout: true).trim()
-                    def imageUrl = "git.esoko.eu/esoko/mapguesser:${version}"
-
-                    sh script: """docker buildx build \
-                                    -t ${imageUrl} \
-                                    -f docker/Dockerfile \
-                                    --target mapg_release \
-                                    .""",
-                        label: 'Build Docker image'
+                    env.VERSION = sh(script: 'git describe --tags --always --match "Release_*" HEAD', returnStdout: true).trim()
 
                     withDockerRegistry([credentialsId: 'gitea-system-user', url: 'https://git.esoko.eu/']) {
-                        sh script: "docker push ${imageUrl}", label: 'Push Docker image to registry'
+                        sh script: """docker buildx build \
+                                        -f docker/Dockerfile \
+                                        --target mapg_release \
+                                        -t git.esoko.eu/esoko/mapguesser:${env.VERSION} \
+                                        --push \
+                                        .""",
+                           label: 'Build Docker image'
                     }
                 }
             }

docker/scripts/entry-point.sh

@@ -8,7 +8,7 @@ echo "Migrating DB..."
 echo "Installing crontab..."
 /usr/bin/crontab docker/scripts/cron
 
-echo "Set runner user..."
+echo "Set runner user based on owner of .env..."
 USER_UID=$(stat -c "%u" .env)
 USER_GID=$(stat -c "%g" .env)
 groupadd --gid $USER_GID mapg