feat: import + fix

Dockerfile

@@ -1,6 +1,6 @@
 # Using https://github.com/gliderlabs/docker-alpine,
 # plus  https://github.com/just-containers/s6-overlay for a s6 Docker overlay.
-FROM alpine:latest
+FROM alpine:3.14
 # Initially was based on work of Christian Lück <christian@lueck.tv>.
 LABEL description="A complete, self-hosted Tiny Tiny RSS (TTRSS) environment." \
       maintainer="Andreas Löffler <andy@x86dev.com>"
@@ -23,7 +23,9 @@ COPY root /
 
 # Add s6 overlay.
 # Note: Tweak this line if you're running anything other than x86 AMD64 (64-bit).
-RUN curl -L -s https://github.com/just-containers/s6-overlay/releases/download/v3.1.2.1/s6-overlay-x86_64.tar.xz | tar xvf - -C /
+RUN curl -L -s https://github.com/just-containers/s6-overlay/releases/download/v3.1.3.0/s6-overlay-x86_64.tar.xz -o s6-overlay-x86_64.tar.xz && \
+    tar xvf s6-overlay-x86_64.tar.xz -C / && \
+    rm s6-overlay-x86_64.tar.xz
 
 # Add wait-for-it.sh
 ADD https://raw.githubusercontent.com/Eficode/wait-for/master/wait-for /srv

Jenkinsfile

@@ -0,0 +1,38 @@
+pipeline {
+  environment {
+    registry = 'https://registry.hub.docker.com'
+    registryCredential = 'dockerhub_jcabillot'
+    dockerImage = 'jcabillot/ttrss'
+  }
+
+  agent any
+
+  triggers {
+    cron('@midnight')
+  }
+
+  stages {
+    stage('Clone repository') {
+      steps{
+        checkout scm
+      }
+    }
+
+    stage('Build image') {
+      steps{
+        sh 'docker build --force-rm=true --no-cache=true --pull -t ${dockerImage} .'
+      }
+    }
+
+    stage('Deploy Image') {
+      steps{
+        script {
+          withCredentials([usernamePassword(credentialsId: 'dockerhub_jcabillot', usernameVariable: 'DOCKER_USER', passwordVariable: 'DOCKER_PASS')]) {
+            sh 'docker login --username ${DOCKER_USER} --password ${DOCKER_PASS}'
+            sh 'docker push ${dockerImage}'
+          }
+        }
+      }
+    }
+  }
+}