add Jenkinsfile for continuous integration.

centreon-plugins/Jenkinsfile

@@ -0,0 +1,30 @@
+stage('Source') {
+  node {
+    sh 'setup_centreon_build.sh'
+    dir('centreon-plugins') {
+      checkout scm
+    }
+    sh './centreon-build/jobs/plugins/plugins-source.sh'
+    source = readProperties file: 'source.properties'
+    env.VERSION = "${source.VERSION}"
+    env.RELEASE = "${source.RELEASE}"
+  }
+}
+
+try {
+  stage('Package') {
+    parallel 'centos7': {
+      node {
+        sh 'setup_centreon_build.sh'
+        sh './centreon-build/jobs/plugins/plugins-package.sh centos7'
+      }
+    }
+    if ((currentBuild.result ?: 'SUCCESS') != 'SUCCESS') {
+      error('Package stage failure.');
+    }
+  }
+} catch(e) {
+  if (env.BRANCH_NAME == 'master') {
+    slackSend channel: "#monitoring-metrology", color: "#F30031", message: "*FAILURE*: `CENTREON PLUGINS` <${env.BUILD_URL}|build #${env.BUILD_NUMBER}> on branch ${env.BRANCH_NAME}\n*COMMIT*: <https://github.com/centreon/centreon-plugins/commit/${source.COMMIT}|here> by ${source.COMMITTER}\n*INFO*: ${e}"
+  }
+}