feat: Jenkinsfile (#5)

Reviewed-on: #5
Co-authored-by: Thumbscrew <thumbscrw@pm.me>
Co-committed-by: Thumbscrew <thumbscrw@pm.me>

Dockerfile

@@ -1,4 +1,4 @@
 ARG NEXTCLOUD_TAG
-FROM nextcloud:${NEXTCLOUD_TAG}
+FROM docker.io/library/nextcloud:${NEXTCLOUD_TAG}-apache
 
 RUN apt-get update && apt-get install ffmpeg -y --no-install-recommends

Jenkinsfile

@@ -0,0 +1,37 @@
+pipeline {
+  agent {
+    kubernetes {
+      inheritFrom 'buildah'
+    }
+  }
+  options {
+    timeout(time: 30, unit: 'MINUTES')
+  }
+  stages {
+    stage('Build') {
+      environment {
+        GITEA_PACKAGE_REGISTRY = credentials('gitea-package-registry')
+      }
+      steps {
+        container('buildah') {
+          sh('buildah --storage-driver=overlay build --build-arg NEXTCLOUD_TAG=${TAG_NAME:-stable} -t $GITEA_PACKAGE_REGISTRY:${TAG_NAME:-stable} .')
+        }
+      }
+    }
+    stage('Publish') {
+      when {
+        buildingTag()
+      }
+      environment {
+        GITEA_PACKAGE_REGISTRY = credentials('gitea-package-registry')
+        GITEA_PACKAGE_WRITE = credentials('gitea-package-write')
+      }
+      steps {
+        container('buildah') {
+          sh('buildah login -u $GITEA_PACKAGE_WRITE_USR -p $GITEA_PACKAGE_WRITE_PSW $GITEA_PACKAGE_REGISTRY')
+          sh('buildah push $GITEA_PACKAGE_REGISTRY:$TAG_NAME')
+        }
+      }
+    }
+  }
+}