fix(ci): add default deploy environment variables for bash-safe pipeline

Reviewed-on: http://gitea.lan:3000/robbond/pleskSaas/pulls/40

Jenkinsfile

@@ -7,6 +7,10 @@ pipeline {
     REGISTRY_IMAGE = "plesk-agency-portal"
     IMAGE_LATEST = "${REGISTRY_IMAGE}:latest"
     IMAGE_BUILD = "${REGISTRY_IMAGE}:build-${BUILD_NUMBER}"
+    DEPLOY_SSH_CREDENTIAL_ID = "${env.DEPLOY_SSH_CREDENTIAL_ID ?: 'plesk-agency-deploy-key'}"
+    APP_HOST = "${env.APP_HOST ?: '192.168.68.89'}"
+    APP_USER = "${env.APP_USER ?: 'deploy'}"
+    DEPLOY_PATH = "${env.DEPLOY_PATH ?: '/opt/plesk-agency-portal'}"
   }
 
   stages {
@@ -68,30 +72,28 @@ pipeline {
 
     stage('Deploy') {
       steps {
-        script {
-          if (!env.DEPLOY_SSH_CREDENTIAL_ID) {
-            error 'DEPLOY_SSH_CREDENTIAL_ID is required'
-          }
-        }
-        sshagent(credentials: ["${env.DEPLOY_SSH_CREDENTIAL_ID}"]) {
+        withCredentials([sshUserPrivateKey(
+          credentialsId: "${env.DEPLOY_SSH_CREDENTIAL_ID}",
+          keyFileVariable: 'SSH_KEY'
+        )]) {
           sh '''
+bash -eo pipefail << 'EOF'
             set -euo pipefail
-            : "${DEPLOY_SSH_HOST:?Missing DEPLOY_SSH_HOST}"
-            : "${DEPLOY_SSH_USER:?Missing DEPLOY_SSH_USER}"
-            : "${DEPLOY_PATH:?Missing DEPLOY_PATH}"
 
             rsync -az \
               docker-compose.prod.yml \
-              scripts/deploy-prod.sh \
-              scripts/smoke-check.sh \
-              scripts/rollback-prod.sh \
-              ${DEPLOY_SSH_USER}@${DEPLOY_SSH_HOST}:${DEPLOY_PATH}/
+              scripts/ \
+              -e "ssh -i $SSH_KEY" \
+              $APP_USER@$APP_HOST:$DEPLOY_PATH/
 
             docker save ${IMAGE_LATEST} ${IMAGE_BUILD} \
-              | ssh ${DEPLOY_SSH_USER}@${DEPLOY_SSH_HOST} 'docker load'
+              | ssh -i $SSH_KEY $APP_USER@$APP_HOST 'docker load'
 
-            ssh ${DEPLOY_SSH_USER}@${DEPLOY_SSH_HOST} \
-              "chmod +x ${DEPLOY_PATH}/deploy-prod.sh ${DEPLOY_PATH}/smoke-check.sh ${DEPLOY_PATH}/rollback-prod.sh && APP_IMAGE='${IMAGE_BUILD}' DEPLOY_PATH='${DEPLOY_PATH}' ${DEPLOY_PATH}/deploy-prod.sh"
+            ssh -i $SSH_KEY $APP_USER@$APP_HOST \
+              "cd $DEPLOY_PATH && chmod +x ./scripts/deploy-prod.sh ./scripts/smoke-check.sh ./scripts/rollback-prod.sh"
+
+            ssh -i $SSH_KEY $APP_USER@$APP_HOST "cd $DEPLOY_PATH && ./scripts/deploy-prod.sh"
+EOF
           '''
         }
       }
@@ -99,7 +101,13 @@ pipeline {
 
     stage('Smoke check') {
       steps {
-        sh 'chmod +x scripts/smoke-check.sh && scripts/smoke-check.sh ${APP_BASE_URL}'
+        sh '''
+bash -eo pipefail << EOF
+set -euo pipefail
+chmod +x scripts/smoke-check.sh
+scripts/smoke-check.sh "${APP_BASE_URL}"
+EOF
+'''
       }
     }
   }